KR102896666B1 - Camera actuator and camera module including the same - Google Patents

Abstract

A camera actuator according to an embodiment includes a housing; a prism unit disposed within the housing; a pressure member disposed between the housing and the prism unit; a driving member for tilting the prism unit, and a substrate connected to the driving member, wherein the pressure member includes a first pulling member disposed on the prism unit; and a second pulling member disposed on the substrate so as to face the first pulling member and electrically connected to the substrate.

Description

Camera actuator and camera module including the same {CAMERA ACTUATOR AND CAMERA MODULE INCLUDING THE SAME}

The present embodiment relates to a camera actuator and a camera module.

Camera modules perform the function of taking pictures of subjects and saving them as images or videos, and are installed in various devices such as mobile terminals such as cell phones, laptops, drones, and vehicles.

Typically, the above-described device is equipped with an ultra-small camera module, and the camera module can perform an autofocus (AF) function that automatically adjusts the distance between the image sensor and the lens to align the focal length of the lens. In addition, the camera module can perform a zooming function of zooming up or zooming out to increase or decrease the magnification of a distant subject through a zoom lens.

Meanwhile, camera modules utilize a zoom actuator for zooming functionality. However, the mechanical movement of the actuator generates frictional torque when the lens moves. This frictional torque causes problems such as reduced driving force, increased power consumption, and deteriorated control characteristics.

In particular, in order to derive the best optical characteristics by using multiple zoom lens groups in the camera module, not only the alignment between the multiple lens groups but also the alignment between the multiple lens groups and the image sensor must be good. However, if decentering occurs, where the spherical center between the lens groups deviates from the optical axis, tilt occurs, where the lens is tilted, or the central axes of the lens groups and the image sensor are not aligned, there is a problem that the angle of view changes or focus deteriorates, resulting in a deterioration in image quality or resolution.

In addition, when increasing the separation distance in the area where friction occurs to reduce friction torque resistance when moving the lens for the zoom function in the camera module, there is a technical problem in which lens decent or lens tilt becomes worse when zooming or reversing the zoom movement.

Additionally, recent camera modules are adopting image stabilization (IS) technology to correct or prevent image shaking caused by camera movement due to unstable fixation devices or user movement.

These image stabilization (IS) technologies include optical image stabilization (OIS) and image sensor-based image stabilization. OIS compensates for motion by altering the path of light, while image sensor-based image stabilization compensates for motion using mechanical and electronic methods. OIS has been increasingly adopted recently.

Meanwhile, the camera module may include a reflective member capable of changing the path of light to implement an OIS function, a mover on which the reflective member is arranged, and a driving unit that moves the mover to change the position of the reflective member. In detail, the camera module may change the path of light by controlling the position of the reflective member with a driving force applied from the driving unit. The position of the reflective member may be controlled using a VCM (Voice Coil Motor) type driving unit including a coil, a magnet, etc. as the driving unit.

At this time, the camera module includes a mover and a housing that accommodates the mover, and a pulling member is arranged between the housing and the mover. The pulling member provides a pressing force between the lower jaw and the mover, so that the mover can be supported while being pressed against the housing, and its position can be moved by the driving unit while in the supported state.

Meanwhile, conventionally, a magnet and a yoke have been used as the pulling member. However, a pulling member composed of a magnet and a yoke as described above has a problem in that if the centers therebetween are misaligned, an external force is generated, and as a result, the mover on which the reflective member is placed cannot be accurately moved to the desired position.

In addition, the camera module is equipped with various electronic components for OIS control mounted on the substrate. Among these electronic components, some are composed of magnetic materials. Therefore, in addition to the attractive force between the magnet and the yoke, an additional attractive force occurs between the magnet and the magnetic electronic components. This additional attractive force, in turn, prevents the mover from being accurately controlled to a desired position.

Therefore, a new camera module that can solve the above-described problems is required.

The embodiment provides a camera actuator that can utilize electronic components included in a camera module as a pulling member and a camera module including the same.

In addition, the embodiment provides a camera actuator and a camera module including the same that can minimize interference between an electronic component composed of a magnetic material and a magnet used as a pulling member.

Additionally, the embodiments seek to provide a camera actuator and a camera module that can have improved optical properties.

In addition, the embodiment seeks to provide a camera actuator and a camera module capable of effectively controlling vibration caused by hand shaking.

In addition, the embodiment seeks to provide a camera actuator and camera module that can be implemented in a compact manner by having a small volume.

Additionally, the embodiment seeks to provide a camera actuator and camera module having improved autofocus and high magnification zoom capabilities.

In addition, the embodiment seeks to provide a camera actuator and camera module that can prevent problems such as decentering, tilting, and friction that occur when moving a lens group.

The technical problems to be solved in the embodiments are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

A camera actuator according to an embodiment includes a housing; a prism unit disposed within the housing; a pressure member disposed between the housing and the prism unit; a driving member for tilting the prism unit, and a substrate connected to the driving member, wherein the pressure member includes a first pulling member disposed on the prism unit; and a second pulling member disposed on the substrate so as to face the first pulling member and electrically connected to the substrate.

Additionally, the first pulling member includes a magnet, and the second pulling member includes a first electronic component disposed on the substrate.

Additionally, the first electronic component includes a capacitor having magnetism.

Additionally, the substrate is disposed on the outside of the housing, the housing includes a housing hole formed in an area corresponding to the second pulling member, and at least a portion of the second pulling member is disposed within the housing hole.

Additionally, the substrate includes a substrate area in which the second pulling member is placed, and the housing includes a mounting groove formed in an area corresponding to the substrate area.

In addition, it includes a moving plate disposed between the prism unit and the housing, and pressed against the housing together with the prism unit by the pressurizing portion.

In addition, the prism unit includes a prism mover having a receiving portion; and a prism disposed within the receiving portion of the prism mover, and the moving plate is disposed between facing surfaces of the prism mover and the housing.

In addition, the moving plate includes a hole formed in an area corresponding to the first pulling member and the second pulling member, and the first pulling member and the second pulling member are arranged to directly face each other with the hole therebetween.

In addition, the moving plate includes a plurality of first moving protrusions arranged on a first surface facing the prism mover, and a second moving protrusion arranged on a second surface facing the housing, and the center of the hole of the moving plate is included in an area connecting the centers of the first and second moving protrusions.

Additionally, the virtual first straight line connecting the plurality of first moving protrusions to each other is orthogonal to the virtual second straight line connecting the plurality of second moving protrusions to each other.

Additionally, the center of the hole of the moving plate is located at the point where the virtual first straight line and the virtual second straight line intersect.

Additionally, the housing includes a plurality of first recesses corresponding to a plurality of second moving protrusions of the moving plate, and the center of the hole of the housing is located on an imaginary straight line connecting the centers of the plurality of first recesses.

Additionally, the prism mover includes a second recess corresponding to the first pulling member and a plurality of third recesses corresponding to the plurality of first moving protrusions of the moving plate, and the center of the second recess is located on an imaginary straight line connecting the centers of the plurality of third recesses.

Additionally, the substrate includes a first sub-region facing a side of the housing, and a second sub-region other than the first sub-region, and the driving unit includes a second electronic component arranged in the second sub-region.

Additionally, the second electronic component includes a capacitor.

The camera actuator and camera module according to the embodiment can reduce the number of parts, thereby reducing the manufacturing cost. That is, in the embodiment, an electronic component disposed on a substrate is used as a component of a pressing portion for pressing a prism unit into a housing. Specifically, the embodiment uses a magnetic electronic component disposed on a substrate as a second pulling member constituting the pressing portion. Specifically, the embodiment uses a magnetic capacitor disposed on a substrate (200) as the second pulling member constituting the pressing portion. Accordingly, in the embodiment, a separate magnet or yoke constituting the second pulling member can be eliminated, thereby reducing the manufacturing cost.

In addition, the camera actuator and camera module according to the embodiment can improve the OIS operation reliability. That is, in the embodiment, when the capacitor disposed on the substrate does not function as a pressurized portion, an external force may be generated due to the attractive force generated between the magnet constituting the pressurized portion and the capacitor, which may cause a problem in the OIS operation reliability. In contrast, in the embodiment, by using the capacitor as a pulling member, the external force generated on the capacitor can be eliminated, thereby improving the OIS operation reliability.

In addition, the camera actuator and camera module according to the embodiment may have improved optical characteristics. That is, the first actuator in the embodiment may include a plurality of capacitors for OIS operation. At this time, some of the capacitors are used as a second pulling member constituting the pressurizing unit of the embodiment. That is, among the electronic components in the embodiment, the capacitors may be divided into a first electronic component used as a second pulling member (620) and a second electronic component other than the first electronic component. In addition, the second electronic component may be arranged in an area on the substrate that does not overlap with the first pulling member or the magnet portion of the driving unit. That is, when the second electronic component is a capacitor, the capacitor may be magnetic, thereby generating an external force between the magnet portion or the first pulling member of the pressurizing unit. Accordingly, in the embodiment, the second electronic component is arranged in an area that does not overlap with the first pulling member or the magnet portion of the driving unit, thereby removing an external force generated by the second electronic component, and thereby providing improved optical characteristics.

FIG. 1 is a perspective view of a first camera actuator according to an embodiment.
Figure 2 is an exploded perspective view of the first camera actuator illustrated in Figure 1.
Figure 3 is a perspective view of a part of the image shake control unit of the first camera actuator.
Figure 4 is a perspective view of the substrate portion of the first camera actuator viewed from the first direction.
Figure 5 is a perspective view of the substrate portion of the first camera actuator viewed from the second direction.
Figure 6 is a drawing for explaining a pressurizing part arranged on the substrate of the first camera actuator.
Figure 7 is an exploded perspective view of the substrate and driving unit of the first camera actuator.
FIGS. 8 to 10 are perspective views of a housing of a camera actuator according to an embodiment.
Figures 11 to 13 are drawings of a prism unit of the first camera actuator.
Figure 14 is a front perspective view of the moving plate constituting the first camera actuator.
Figure 15 is a rear perspective view of the moving plate constituting the first camera actuator.
Figures 16 to 18 are drawings of the coupling relationship between the housing, the prism unit, the pressurizing portion, and the moving plate in the first camera actuator.
Figures 19 and 20 are exemplary diagrams of the operation of the first camera actuator according to the embodiment.
Fig. 21 is a perspective view of a camera module according to an embodiment.
Fig. 22 is a perspective view of a camera module according to an embodiment with some components omitted.
Fig. 23 is an exploded perspective view of a second camera actuator according to an embodiment.
Fig. 24 is a cross-sectional view of a second camera actuator according to an embodiment.
Fig. 25 is a front view of a second camera actuator according to an embodiment.
FIG. 26 is a perspective view illustrating third and fourth driving units arranged within a housing in a second camera actuator according to an embodiment.
Figures 27 and 28 are exploded perspective views of the first and second driving units of the second camera actuator according to the embodiment.
Fig. 29 is a perspective view of some components of a second camera actuator according to an embodiment.
Fig. 30 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied.
Fig. 31 is an exterior view of a vehicle equipped with a vehicle driving assistance device to which a camera module according to an embodiment is applied.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

However, the technical idea of the present invention is not limited to some of the embodiments described, but can be implemented in various different forms, and within the scope of the technical idea of the present invention, one or more of the components between the embodiments can be selectively combined or substituted for use.

In addition, terms (including technical and scientific terms) used in the embodiments of the present invention may be interpreted as having a meaning that can be generally understood by a person of ordinary skill in the technical field to which the present invention belongs, unless explicitly and specifically defined and described, and terms that are commonly used, such as terms defined in a dictionary, may be interpreted in consideration of the contextual meaning of the relevant technology.

In addition, the terms used in the embodiments of the present invention are for the purpose of describing the embodiments and are not intended to limit the present invention. In this specification, the singular may also include the plural unless specifically stated in the phrase, and when it is described as "A and/or at least one (or more) of B, C," it may include one or more of all combinations that can be combined with A, B, and C.

In addition, when describing components of embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only intended to distinguish the components from other components, and are not limited by the nature, order, or sequence of the components. In addition, when it is described that a component is 'connected', 'coupled', or 'connected' to another component, the component may include not only cases where the component is directly connected, coupled, or connected to the other component, but also cases where the component is 'connected', 'coupled', or 'connected' by another component between the component and the other component.

Additionally, when it is described as being formed or arranged "above or below" each component, "above" or "below" includes not only cases where the two components are in direct contact with each other, but also cases where one or more other components are formed or arranged between the two components. Furthermore, when it is expressed as "above" or "below", it can include the meaning of a downward direction as well as an upward direction based on one component.

The optical axis direction used below can be defined as the optical axis direction of the lens coupled to the camera actuator or camera module, and the vertical direction can be defined as the direction perpendicular to the optical axis.

The autofocus function used below can be defined as a function that automatically focuses on a subject by adjusting the distance from the image sensor by moving the lens in the direction of the optical axis according to the distance to the subject so that a clear image of the subject can be obtained on the image sensor.

Meanwhile, autofocus can be used in conjunction with AF (Auto Focus). Furthermore, closed-loop autofocus (CLAF) control can be defined as a method of detecting the distance between the image sensor and the lens to provide real-time feedback on the lens position to improve focus adjustment accuracy.

In addition, before describing the embodiments of the invention, the first direction may refer to the x-axis direction illustrated in the drawing, and the second direction may be a direction different from the first direction. For example, the second direction may refer to the y-axis direction illustrated in the drawing, which is a direction perpendicular to the first direction. In addition, the third direction may be a direction different from the first and second directions. For example, the third direction may refer to the z-axis direction illustrated in the drawing, which is a direction perpendicular to the first and second directions. Here, the third direction may refer to an optical axis direction.

Below, the configuration of the camera module according to the present embodiment is described with reference to the drawings.

Fig. 1 is a perspective view of a first camera actuator according to an embodiment, and Fig. 2 is an exploded perspective view of the first camera actuator illustrated in Fig. 1. The first camera actuator (1000) may be an OIS (Optical Image Stabilizer) actuator. The first camera actuator (1000) may change the path of light incident on a camera module (10).

Referring to FIGS. 1 and 2, the first camera actuator (1000) may include a housing (100), an image shake control unit (200, 300) disposed on the housing (100), and a prism unit (400) disposed on the image shake control unit (200, 300).

In addition, the first camera actuator (1000) may further include a cover member (not shown). The cover member (not shown) may include an accommodation space therein and may have at least one open side. For example, the cover member may be arranged to surround the outer surface of the housing. Preferably, a portion of the image shake control unit (200, 300) may be arranged on the outer surface of the housing (100). In addition, the cover member may be arranged to surround a portion of the image shake control unit (200, 300) arranged on the outer surface of the housing (100). Accordingly, the cover member may protect the image shake control unit (200, 300), the housing (100), and the prism unit (400). The cover member may have a structure in which a plurality of open side surfaces are connected to each other. In detail, the cover member may have an open structure with a front surface where light is incident from the outside, a lower surface corresponding to the first camera actuator (1000), and a rear surface opposite to the front surface, and may provide a light movement path of the prism unit (400) described later.

The above-described cover member may include a rigid material. For example, the cover member may include a material such as resin or metal, and may support a housing (100) disposed within the receiving space. For example, the cover member may be disposed to surround the housing (100), the image shake control unit (200, 300), and the prism unit (400), and may support the above-described components.

In detail, the prism unit (400) described below can move in the first direction and/or the second direction by the image shake control unit (200, 300). At this time, the cover member can fix the housing (100) and the image shake control unit (200, 300) to a set position, thereby providing a more accurate light movement path. In addition, the cover member can prevent the housing (100) from moving out of the first camera actuator (1000) while stably supporting the prism unit (400) to the housing (100) by the pressing member (500). The cover member can be omitted depending on the arrangement relationship of the housing (100), the image shake control unit (200, 300), and the prism unit (400).

Meanwhile, the image shake control unit (200, 300) may include a substrate (200) and a driving unit (300). The driving unit (300) may include a coil unit (310), a magnet unit (320), a yoke unit (330), and a position sensor unit (340).

Additionally, the first camera actuator (1000) may include a moving plate (500) disposed between the housing (100) and the prism unit (400). The moving plate (500) allows the prism unit (400) to tilt in the first axis and the second axis direction perpendicular to the first axis with respect to the housing (100).

In addition, the first camera actuator (1000) may include a pressurizing member (600). The pressurizing member (600) may include a first pulling member (610) and a second pulling member (620). The first pulling member (610) may be disposed on the prism unit (400). The second pulling member (620) may be disposed on the housing (100). Specifically, the second pulling member (620) may be disposed on the substrate (200) of the image shake control unit (200, 300). The first pulling member (610) and the second pulling member (620) may press the prism unit (400) to the housing (100). For example, an attractive force may be generated between the first pulling member (610) and the second pulling member (620). And, by the attractive force, the prism unit (400) may be supported in a pressurized state on the housing (100).

Below, each configuration of the first camera actuator (1000) according to the embodiment will be described in detail.

FIGS. 3 to 15 are perspective views of each configuration of the first camera actuator according to an embodiment.

A first camera actuator (1000) according to an embodiment may include the housing (100), the image shake control unit (200, 300), the prism unit (400), the moving plate (500), and the pressurizing unit (600).

In detail, the image shake control unit (200, 300) may include a substrate (200), a coil unit (310), a magnet unit (320), a yoke unit (330), and a position sensor unit (340).

Additionally, the prism unit (400) may include a prism (400b) and the prism mover (400a).

Additionally, the pressurizing member (600) may include a first pulling member (610) and a second pulling member (620). An attractive force may be generated between the first pulling member (610) and the second pulling member (620), and the prism unit (400) may be supported in a pressurized state on the first housing (100).

According to an embodiment, there is a technical effect that can provide an ultra-slim, ultra-small camera actuator and a camera module including the same by providing an image shake control unit (200, 300) disposed on the housing (100).

In addition, according to the embodiment, by arranging the image shake control unit (200, 300) on the lower side of the prism unit (400), there is a technical effect of resolving the size limitation of the lens in the lens assembly of the optical system when implementing OIS, thereby ensuring sufficient light quantity.

In addition, according to an embodiment, there is a technical effect of providing an image shake control unit (200, 300) stably positioned on the housing (100) to control tilting of the prism unit (400) along the first or second axis, thereby minimizing the occurrence of decent or tilt phenomena when implementing OIS, thereby achieving the best optical characteristics.

In addition, according to the embodiment, unlike the conventional method of moving multiple solid lenses, there is a technical effect of implementing OIS with low power consumption by providing an image shake control unit (200, 300) to tilt the prism unit (400) along the first or second axis and controlling the tilting.

Referring to the drawings below, each component of the first camera actuator (1000) will be described in detail.

<Image shake control unit>

FIG. 3 is a perspective view of a part of the image shake control unit of the first camera actuator, FIG. 4 is a perspective view of the substrate of the first camera actuator as viewed from a first direction, FIG. 5 is a perspective view of the substrate of the first camera actuator as viewed from a second direction, FIG. 6 is a drawing for explaining a pressurizing unit arranged on the substrate of the first camera actuator, and FIG. 7 is an exploded perspective view of the substrate and driving unit of the first camera actuator.

Referring to FIGS. 3 to 7, the image shake control unit (200, 300) may include a substrate (200) and a driving unit (300).

In addition, the driving unit (300) may include a coil unit (310), a magnet unit (320), a yoke unit (330), and a position sensor unit (340). Some components of the driving unit (300) may be disposed on the substrate (200). In addition, the remaining components of the driving unit (300) may be disposed on the outer surface of the prism unit (400) facing the inner surface of the substrate (200). For example, the coil unit (310) and the position sensor unit (340) of the driving unit (300) may be disposed on the inner surface of the substrate (200). In addition, the magnet unit (320) and the yoke unit (330) of the driving unit (300) may be disposed on the prism unit (400). Specifically, the magnet part (320) and the yoke part (330) of the driving part (300) can be placed on the prism mover (400a) of the prism unit (400).

The above substrate (200) is connected to a predetermined power supply (not shown) and can supply power to a coil unit (310) placed on the substrate (200).

The above substrate (200) may include a circuit board having a wiring pattern that can be electrically connected, such as a rigid printed circuit board (Rigid PCB), a flexible printed circuit board (Flexible PCB), or a rigid flexible printed circuit board (Rigid Flexible PCB).

For example, the substrate (200) may include a rigid region and a flexible region. For example, a gyro sensor (270) or a driver IC (280) may be mounted on the substrate (200). In addition, the region of the substrate (200) where the gyro sensor (270) or the driver IC (280) is mounted may be configured as a rigid region. In addition, the substrate (200) may include a region where the coil unit (310), the position sensor unit (340), and the second pulling member (620) are disposed. In addition, the region of the substrate (200) where the coil unit (310), the position sensor unit (340), and the second pulling member (620) are disposed may be configured as a flexible region. The flexible region of the substrate (200) may be bent to correspond to the shape or curvature of the outer surface of the housing (100), and thus may be stably disposed on the housing (100).

The coil unit (310) of the above driving unit (300) may be placed on the substrate (200). The coil unit (310) may be electrically connected to the substrate (200). The coil unit (310) may include one or more coil units.

The above coil portion (310) may include a first coil portion (311), a second coil portion (312), and a third coil portion (313).

The first to third coil sections (311, 312, 313) may be spaced apart from each other. For example, the area where the first to third coil sections (311, 312, 313) are arranged among the entire area of the substrate (200) may have a 'ㄷ' shape.

Specifically, the substrate (200) may include a first substrate region (210), a second substrate region (220), a third substrate region (230), and a fourth substrate region (240).

A first coil unit (311) among the plurality of coil units (310) may be arranged in the first substrate region (210). The first substrate region (210) may be a first side region of the substrate (200). For example, the first substrate region (210) may be a left side region of the substrate (200). The first substrate region (210) may correspond to a first side (110) of a housing (100) to be described later. For example, the first substrate region (210) may be an region facing the first side (110) of the housing (100). For example, the first substrate region (210) may be an region arranged on the outside of the first side (110) of the housing (100).

In the second substrate region (220), a second coil portion (312) among the plurality of coil portions (310) may be arranged. The first substrate region (210) may be a second-side region of the substrate (200). For example, the second substrate region (220) may be a right-side region of the substrate (200). The second substrate region (220) may correspond to the second side (120) of the housing (100), which will be described later. For example, the second substrate region (220) may be an region facing the second side (120) of the housing (100). For example, the second substrate region (220) may be an region arranged on the outside of the second side (120) of the housing (100).

The second pulling member (620) of the pressing member (600) may be arranged in the third substrate region (230). The third substrate region (230) may be a third-side region of the substrate (200). For example, the third substrate region (230) may be a back region of the substrate (200). The third substrate region (230) may correspond to the third side (130) of the housing (100), which will be described later. For example, the third substrate region (230) may be an region facing the third side (130) of the housing (100). For example, the third substrate region (230) may be an region arranged on the outside of the third side (130) of the housing (100). At this time, the substrate (200) in the camera actuator of the comparative example includes only the first substrate region (210), the second substrate region (220), and the fourth substrate region (240).

At this time, the substrate (200) of the camera actuator (1000) in the embodiment may further include a third substrate region (230) connecting the first substrate region (210) and the second substrate region (220). The third substrate region (230) is not directly connected to the first substrate region (210) and the second substrate region (220). That is, the substrate (200) in the embodiment may have a structure in which the first substrate region (210), the second substrate region (220), and the fourth substrate region (240) are separated from each other with the fourth substrate region (240) as the center. For example, the substrate (200) includes the first substrate region (210) extending upward from the first side end of the fourth substrate region (240) constituting the bottom portion. In addition, the substrate (200) includes a second substrate region (220) extending upward from a second side end of the fourth substrate region (240) facing the first side end. In addition, the substrate (200) includes a third substrate region (230) extending upward from a third side end of the fourth substrate region (240) between the first side end and the second side end. The third substrate region (230) may be spaced apart from the first substrate region (210) and the second substrate region (220). That is, the first substrate region (210), the second substrate region (220), and the third substrate region (230) may be connected to each other through the fourth substrate region (240), but are not directly connected to each other.

A third substrate region (230) among a plurality of coil parts (310) may be arranged in the fourth substrate region (240). The fourth substrate region (240) may be a lower region of the substrate (200). For example, the fourth substrate region (240) may be a bottom portion of the substrate (200). The fourth substrate region (240) may be an region facing the fourth side (140) of the housing (100) to be described later. For example, the fourth substrate region (240) may be an region arranged on the outside of the fourth side (140) of the housing (100).

Meanwhile, the first substrate region (210), the third substrate region (230), and the fourth substrate region (240) of the substrate (200) may be flexible regions. In addition, the second substrate region (220) of the substrate (200) may be rigid regions.

Accordingly, a gyro sensor (270) and a driver IC (280) may be placed in the second substrate area (220) of the substrate (200). The driver IC (280) may receive sensing information obtained from the gyro sensor (270) and recognize a hand tremor state using the received sensing information. In addition, the driver IC (280) may control the magnitude of the current or voltage applied to the coil unit (310) based on the recognized hand tremor state.

The gyro sensor (270) may be disposed on the outer surface of the second substrate area (220). Accordingly, the gyro sensor (270) may be exposed to the outside of the first camera actuator (1000). The driver IC (280) may be disposed on the inner surface of the second substrate area (220). The outer surface and the inner surface of the second substrate area (220) may refer to opposite surfaces of the second substrate area (220). In addition, a second electronic component (260) may be disposed on the second substrate area (220). The second electronic component (260) may be a capacitor, but is not limited thereto. For example, the second electronic component (260) may be a memory in which control information for controlling the magnitude of a current or voltage supplied to the coil unit (310) based on a hand shake state is stored. Additionally, a terminal (250) may be arranged in the second substrate area (220) of the substrate (200). The terminal (250) may be a terminal for electrically connecting the main substrate (not shown) of the camera module and the substrate (200) of the first camera actuator (1000) to each other.

Meanwhile, in the embodiment, the gyro sensor (270) and the driver IC (280) are arranged in the second substrate area (220) of the substrate (200), but this is not limited thereto. For example, the gyro sensor (270) and the driver IC (280) may be arranged in the first substrate area (210) facing the second substrate area (220).

In addition, the first coil part (311) and the second coil part (312) may be respectively disposed on the first substrate area (210) and the second substrate area (220) of the substrate (200) facing each other. In addition, the third coil part (313) may be disposed on the fourth substrate area (240), which is a connecting area connecting the first substrate area (210) and the second substrate area (220) of the substrate (200).

In addition, the driving unit (300) may include a magnet unit (320) facing the coil unit (310). The magnet unit (320) may include a first magnet (321), a second magnet (322), and a third magnet (323) arranged in areas corresponding to the plurality of coil units (310). Such magnet unit (320) may be arranged to correspond to the coil unit (310). Specifically, the magnet unit (320) may be arranged in an area corresponding to each coil unit on the side of the prism mover (400a) of the prism unit (400).

For example, the prism mover (400a) may include a first side portion (410) corresponding to the first coil portion (311). And, the first magnet (321) may be disposed on the first side portion (410) of the prism mover (400a). The prism mover (400a) may include a second side portion (420) corresponding to the second coil portion (312). And, the second magnet (322) may be disposed on the second side portion (420) of the prism mover (400a). The prism mover (400a) may include a fourth side portion (440) corresponding to the third coil portion (313). And, the third magnet (323) may be disposed on the fourth side portion (440) of the prism mover (400a).

In addition, the driving unit (300) in the embodiment may include a yoke unit (330). The yoke unit (330) may stably fix the magnet unit (320). The yoke unit (330) may be arranged to correspond to the magnet unit (320). For example, the yoke unit (330) may be configured in multiple pieces to correspond 1:1 to the magnet unit (320).

For example, the yoke portion (330) may include a first yoke (331) arranged to correspond to the first magnet (321) on the first side (410) of the prism mover (400a). For example, the yoke portion (330) may include a second yoke (332) arranged to correspond to the second magnet (322) on the second side (420) of the prism mover (400a). For example, the yoke portion (330) may include a third yoke (333) arranged to correspond to the third magnet (323) on the fourth side (440) of the prism mover (400a).

Additionally, the driving unit (300) may include a position sensor unit (340). The position sensor unit (340) may be placed in an inner region of the coil unit (310).

The position sensor unit (340) is connected to the driver IC (280) and can transmit position detection information to the driver IC (280). The position sensor unit (340) may be a magnetic sensor capable of detecting a change in magnetic force. The position sensor unit (340) can detect a change in magnetic force according to the tilt of the prism unit (400). The position sensor unit (340) can detect a change in magnetic flux according to the movement of the magnet unit (320) to obtain position information of the prism unit (400).

The above position sensor unit (340) may be, for example, a Hall sensor, but is not limited thereto.

The above position sensor unit (340) may be placed on each substrate (200). Preferably, the position sensor unit (340) may be placed adjacent to the coil unit (310) on the substrate (200). The position sensor unit (340) may be configured in multiple units.

The position sensor unit (340) may include a first position sensor (341) disposed adjacent to the first coil unit (311) in the first substrate area (210) of the substrate (200). In addition, the position sensor unit (340) may include a second position sensor (342) disposed adjacent to the second coil unit (312) in the second substrate area (220) of the substrate (200). In addition, the position sensor unit (340) may include a third position sensor (343) and a fourth position sensor (344) disposed adjacent to the third coil unit (313) in the fourth substrate area (240) of the substrate (200).

Meanwhile, the substrate (200) includes a third substrate region (230). The third substrate region (230) of the substrate (200) may be a region disposed on the outer surface of the third side (130) of the housing (100). That is, the third substrate region (230) of the substrate (200) may be a region corresponding to the third side (130) of the housing (100). A component of the pressing part (600) may be disposed in the third substrate region (230) of the substrate (200). For example, a second pulling member (620) may be disposed in the third substrate region (230) of the substrate (200). At this time, the second pulling member (620) may be electrically connected to the substrate (200). The second pulling member (620) may be an electronic component. Specifically, the second pulling member (620) may be an electronic component having a magnetism that is electrically connected to the substrate (200). For example, the second pulling member (620) may be a capacitor. In the third substrate area (230) of the substrate (200), a plurality of capacitors corresponding to the second pulling member (620) may be arranged at a predetermined interval.

Preferably, the first pulling member (610) of the pressurizing unit (600) may be disposed on the prism unit (400). As will be described later, the first pulling member (610) of the pressurizing unit (600) may be disposed on the third side (530) of the prism mover (400a). The third side (530) of the prism mover (400a) may correspond to the third side (130) of the housing (100). In addition, the third side (530) of the prism mover (400a) may correspond to the third substrate area (230) of the substrate (200). Accordingly, the first pulling member (610) and the second pulling member (620) of the pressurizing portion (600) can be arranged to correspond to each other on the prism mover (400a) and the third substrate area (230) of the substrate (200). That is, the first pulling member (610) and the second pulling member (620) can be arranged to face each other on the prism mover (400a) and the third substrate area (230), with the third side (130) of the housing (100) and the moving plate (500) to be described later interposed therebetween. This will be described in further detail below.

Meanwhile, a hole may be formed in each substrate area of the substrate (200).

Specifically, a plurality of first-first holes (211) may be formed in the first substrate region (210) of the substrate (200). In addition, a plurality of first-second holes (221) may be formed in the second substrate region (220) of the substrate (200). In addition, a plurality of first-third holes (231) may be formed in the third substrate region (230) of the substrate (200). In addition, a plurality of first-fourth holes (241) may be formed in the fourth substrate region (240) of the substrate (200). The first-first holes (211), the first-second holes (221), the first-third holes (231), and the first-fourth holes (241) may be coupling holes for coupling the substrate (200) to the housing (100). For example, protrusions (to be described later) corresponding to the plurality of holes may be formed in the housing (100). In addition, the first-first hole (211), the first-second hole (221), the first-third hole (231), and the first-fourth hole (241) of the substrate (200) can be inserted into a protrusion formed in the housing (100). As a result, the substrate (200) can be fixed in position on the housing (100).

Meanwhile, the image shake control unit (200, 300) may further include a lower plate (200a). The lower plate (200a) may be a lower cover of a camera actuator. The lower plate (200a) may function to secure the rigidity of the substrate (200). The lower plate (200a) is not a required component and may be optionally omitted.

Housing

FIGS. 8 to 10 are perspective views of a housing of a camera actuator according to an embodiment.

Referring to FIGS. 8 to 10, the housing (100) may include a receiving space for receiving the prism unit (400). The housing (100) may include a plurality of sides. For example, the housing (100) may include a first side (110) corresponding to a first substrate area (210) of the substrate (200), a second side (120) corresponding to a second substrate area (220) of the substrate (200), a third side (130) corresponding to a third substrate area (230) of the substrate (200), and a fourth side (140) corresponding to a fourth substrate area (240) of the substrate (200).

In detail, the housing (100) may include a first side (110) corresponding to the first coil portion (311), a second side (120) corresponding to the second coil portion (312), a third side (130) corresponding to the second pulling member (620), and a fourth side (140) corresponding to the third coil portion (313). The housing (100) may have a hexahedral shape, but is not limited thereto. However, the housing (100) may have a plurality of side portions, and at least two open areas (not shown) may be formed between the plurality of side portions. One of the two open areas may be an area corresponding to a light inlet portion that provides light to the prism unit (400). Additionally, the other of the two open areas may be an area corresponding to a light emitting portion that provides light reflected from the prism unit (400) to the lens portion of the second camera actuator (to be described later).

The housing (100) may include a plurality of housing holes. The housing holes may be through holes that penetrate the inner and outer surfaces of each side of the housing (100). The plurality of housing holes may include first to fourth housing holes.

The housing (100) may include a first housing hole (111). The first housing hole (111) may be a hole penetrating the inner and outer surfaces of the first side (110) of the housing (100).

The housing (100) may include a second housing hole (121, 122). The second housing hole (121, 122) may be a hole penetrating the inner and outer surfaces of the second side (120) of the housing (100). The second housing hole may include a 2-1 housing hole (121) and a 2-2 housing hole (122) that are spaced apart from each other.

The housing (100) may include a third housing hole (134). The third housing hole (134) may be a hole penetrating the inner and outer surfaces of the third side (130) of the housing (100).

The housing (100) may include a fourth housing hole (141). The fourth housing hole (141) may be a hole penetrating the inner and outer surfaces of the fourth side (140) of the housing (100).

Some of the plurality of housing holes may be formed in an area corresponding to the coil portion (310). In addition, other some of the plurality of housing holes may be formed in an area corresponding to the driver IC (280). In addition, the remaining some of the plurality of housing holes may be formed in an area corresponding to the second pulling member (620) of the pressurizing portion (600).

The first housing hole (111) may be formed in an area corresponding to the first coil portion (311). The first housing hole (111) may have a size and shape corresponding to the first coil portion (311). Accordingly, the first coil portion (311) may be partially or fully inserted and placed within the first housing hole (111).

The 2-1 housing hole (121) may be formed in an area corresponding to the second coil portion (312). The 2-1 housing hole (121) may have a size and shape corresponding to the second coil portion (312). Accordingly, the second coil portion (312) may be partially or completely inserted and placed within the 2-1 housing hole (121).

The 2-2 housing hole (122) may be formed in an area corresponding to the driver IC (280). The 2-2 housing hole (122) may have a size and shape corresponding to the driver IC (280). Accordingly, the driver IC (280) may be partially or completely inserted and placed within the 2-2 housing hole (122).

The third housing hole (134) may be formed in an area corresponding to the second pulling member (620). The third housing hole (134) may have a size and shape corresponding to the second pulling member (620). Accordingly, the second pulling member (620) may be partially or fully inserted and placed within the third housing hole (134).

The fourth housing hole (141) may be formed in an area corresponding to the third coil portion (313). The fourth housing hole (141) may have a size and shape corresponding to the third coil portion (313). Accordingly, the third coil portion (313) may be partially or fully inserted and placed within the fourth housing hole (141).

The above housing (100) may include a mounting groove (135).

The above-mentioned settling groove (135) may be formed in an area corresponding to the third substrate area (230) of the substrate (200). That is, the settling groove (135) may be formed on the outer surface of the third side (130) of the housing (100). The settling groove (135) may be a settling portion on which the third substrate area (230) is settling. The settling groove (135) reduces the distance between the first pulling member (610) and the second pulling member (620) constituting the pressing portion (600), thereby increasing the attractive force generated therebetween.

That is, each side of the housing (100) has a certain thickness. At this time, the housing (100) may be formed by injection molding. And, for the purpose of injection molding, each side may have the same thickness.

At this time, the second pulling member (620) is an electronic component that is electrically connected to the substrate (200). For example, the second pulling member (620) is a capacitor that is electrically connected to the substrate (200). At this time, the capacitor has specifications according to the product and has a certain height according to the specifications. Here, when a magnetic material such as a general yoke is used as the second pulling member, the thickness of the yoke can be manufactured and used to match the thickness of the housing (100). In contrast, the second pulling member (620) in the embodiment is an electronic component such as a capacitor, and therefore, it is difficult to design its thickness or height to match the thickness of the side of the housing (100). Accordingly, in the embodiment, a mounting groove (135) is formed on the outer surface of the third side (130) of the housing (100) where the second pulling member (620) is disposed, in which the third substrate area (230) of the substrate (200) is disposed. Accordingly, in the embodiment, the distance between the first pulling member (610) and the second pulling member (620) can be reduced by the depth of the mounting groove (135), and the corresponding amount of attractive force can be increased.

Meanwhile, a plurality of protrusions may be formed on the outer surface of each side of the housing (100). The plurality of protrusions may correspond to holes formed in each substrate area of the substrate (200).

That is, a first protrusion (not shown) may be formed on the outer surface of the first side (110) of the housing (100). The first protrusion may correspond to a plurality of first-first holes (211) formed in the first substrate area (210) of the substrate (200).

Additionally, a second protrusion (123) may be formed on the outer surface of the second side (120) of the housing (100). The second protrusion (123) may correspond to a plurality of first-second holes (221) formed in the second substrate area (220) of the substrate (200).

In addition, a third protrusion (136) may be formed on the outer surface of the third side portion (130) of the housing (100). The third protrusion (136) may be formed on the outer surface of the mounting groove (135) among the outer surfaces of the third side portion (130). The third protrusion (136) may correspond to a plurality of first-third holes (231) formed in the third substrate area (230) of the substrate (200).

Additionally, a fourth protrusion (not shown) may be formed on the outer surface of the fourth side (140) of the housing (100). The fourth protrusion may correspond to a plurality of first-fourth holes (241) formed in the fourth substrate area (240) of the substrate (200).

The first to fourth protrusions may be coupling protrusions for stably coupling the substrate (200) to the outer surface of the housing (100). When coupling the substrate (200) to the housing (100), the first to fourth protrusions may be inserted into holes formed in each substrate area of the substrate (200).

The above housing (100) may include at least one recess.

For example, a first recess (131) may be formed on at least one inner surface of the housing (100). The first recess (131) may be formed on the inner surface of the third side (130) of the housing (100). Preferably, the first recess (131) may be formed in an area corresponding to the third side (430) of the prism mover (400a), the third substrate area (230) where the first pulling member (610) and the second pulling member (620) are arranged.

The third side (430) of the above prism mover (400a) may be an area where a moving plate (500) corresponding to a rotation axis for tilting the prism unit (400) in the first and second axis directions is placed.

The first recess (131) may have a concave groove shape from the inner side of the third side (130) of the housing (100) toward the outer side. The first recess (131) may have a concave shape from the inner side of the third side (130) of the housing (100) toward the outer side (z-axis direction) of the third side (130).

The above first recess (131) may be a mounting portion where the moving plate (500) is mounted. The above first recess (131) may provide a space where a second moving protrusion (to be described later) disposed on the second surface of the moving plate (500) is mounted or inserted.

The first recess (131) may be arranged to be spaced apart in the first direction (x-axis direction) based on the center of the inner surface of the third side portion (130). That is, the first recess (131) may include a first sub-first recess (132) arranged to be spaced apart in the -x-axis based on the center of the inner surface of the third side portion (130), and a second sub-first recess (133) arranged to be spaced apart in the +x-axis. At this time, the center of the third housing hole (134) may be located on an imaginary straight line connecting the centers of the first sub-first recess (132) and the second sub-first recess (133).

That is, the first recess (131) may include a plurality of sub-recesses that are spaced apart in the first direction based on the central area of the third side (130) of the housing (100). Here, the third housing hole (134) may be formed in the central area of the third side (130). Accordingly, the first recess (131) may be spaced apart in the first direction based on the third housing hole (134).

Meanwhile, the second substrate region (220) of the substrate (200) may include a 2-1 region (220a) facing the second side (120) of the housing (100) and a 2-2 region (220b) other than the 2-1 region (220a).

And, as described above, a second electronic component (260) may be placed in the second substrate area (220) of the substrate (200). At this time, the second electronic component (260) may be a memory as described above, but may also be a capacitor.

That is, the first actuator in the embodiment may include a plurality of capacitors for the OIS operation. At this time, some of the capacitors are used as the second pulling member (620) constituting the pressurizing member (600) of the embodiment. In addition, it may be difficult to use all of the plurality of capacitors provided for the OIS operation as the second pulling member (620). That is, the space where the second pulling member (620) is arranged is limited, and thus it may be difficult to arrange all of the plurality of capacitors in the limited space. Accordingly, among the electronic components in the embodiment, the capacitors may be divided into a first electronic component used as the second pulling member (620) and a second electronic component (260) other than the second pulling member (620).

And, the second electronic component (260) may be placed in the 2-2 region (220b) of the second substrate region (220). That is, when the second electronic component (260) is a capacitor, the capacitor may be magnetic, thereby generating an external force between the magnet portion (320) and the first pulling member (610) of the pressurizing portion (600). Accordingly, in the embodiment, by placing the second electronic component (260) in the 2-2 region (220b) of the second substrate region (220) of the substrate (200), an external force that may occur between the magnet portion (320) and the first pulling member (610) constituting the pressurizing portion (600) may be removed.

In addition, the center of the hole (530) of the moving plate (500) may be included in an area connecting the centers of a plurality of first moving protrusions (511) arranged in a first direction on the first surface (510) and the centers of second moving protrusions (521) arranged in a second direction perpendicular to the first direction on the second surface (520).

Specifically, a virtual first straight line connecting the centers of the plurality of first moving protrusions (511) and a virtual second straight line connecting the centers of the plurality of second moving protrusions (521) can be perpendicular to each other.

Additionally, the first straight line and the second straight line may intersect each other. In addition, the center of the hole (530) of the moving plate (500) may be located in the area where the first straight line and the second straight line intersect each other.

Prism Unit

Figures 11 to 13 are drawings of a prism unit (400) of a first camera actuator (1000).

Referring to FIGS. 11 to 13, the prism unit (400) may be placed within the housing (100). In detail, the prism unit (400) may be placed within the receiving space of the housing (100).

The above prism unit (400) may include a prism (400b) and a prism mover (400a) disposed on the prism (400b).

The above prism (400b) may be a right-angle prism. The prism (400b) may reflect the direction of light incident from the outside. That is, the prism (400b) may change the path of light incident from the outside to the first camera actuator (1000) toward the second camera actuator (2000).

The above prism mover (400a) may be placed on the prism (400b). The prism mover (400a) may be placed to surround the prism (400b). The prism mover (400a) may have at least one open side and may include an accommodation space inside. Specifically, the prism mover (400a) may have a structure in which a plurality of open side sides are connected to each other. For example, the prism mover (400a) may have a structure in which a side corresponding to the prism (400b) is open and may include an accommodation space defined as a first space (450) inside.

The prism mover (400a) may include an inner surface (451). The inner surface (451) may be an inner surface forming the first space (450). The first space (450) may have a shape corresponding to that of the prism (400b). The inner surface (451) of the first space (450) may be in direct contact with the prism (400b).

The prism mover (400a) may include a step (452). The step (452) may be positioned within the first space (450). The step (452) may serve as a guide and/or a mounting portion for the prism (400b). In detail, a protrusion corresponding to the step (452) may be formed on the outside of the prism (400b), but is not limited thereto.

The protrusion or one end of the prism (400b) may be guided by the step (452) of the prism mover (400a) and placed within the first space (450). Accordingly, the prism mover (400a) can effectively support the prism (400b). In addition, the prism (400b) can be settled at a set position and have improved alignment characteristics within the prism mover (400a).

The prism unit (400) may include a plurality of side portions. For example, the prism mover (400a) of the prism unit (400) may include a plurality of side portions. The prism mover (400a) may include a first side portion (410) corresponding to the first side portion (110) of the housing (100). In addition, the prism mover (400a) may include a second side portion (420) corresponding to the second side portion (120) of the housing (100). In addition, the prism mover (400a) may include a third side portion (430) corresponding to the third side portion (130) of the housing (100). In addition, the prism mover (400a) may include a fourth side portion (440) corresponding to the fourth side portion (140) of the housing (100).

The above prism mover (400a) may include a plurality of recesses.

Preferably, the prism mover (400a) may include a second recess (434) and a third recess (431).

The second recess (434) may be formed in the third side (430) of the prism mover (400a). Preferably, the second recess (434) may be formed on the outer surface of the third side (430) of the prism mover (400a). The second recess (434) may have a concave shape inwardly on the outer surface of the third side (430) of the prism mover (400a). The second recess (434) may be formed in the central region of the outer surface of the third side (430) of the prism mover (400a). Preferably, the second recess (434) may be aligned with the third housing hole (134) formed in the housing (100) in the z-axis direction. The second recess (434) may be formed to face the third housing hole (134) formed in the housing (100). Preferably, the center of the second recess (434) may be formed in an area overlapping the center of the third housing hole (134) of the housing (100) in the z-axis direction. The second recess (434) may provide a space in which a component of the pressing part (600) is arranged. Preferably, the second recess (434) may be formed to have a first pulling member (610) which is a component of the pressing part (600). The first pulling member (610) may be a magnet.

Accordingly, the second recess (434) can be arranged to face the third housing hole (134) arranged in the housing (100). That is, the second recess (434) can overlap the third housing hole (134) in the z-axis direction.

At this time, an adhesive material (not shown) may be applied to the second recess (434). In addition, the first pulling member (610) may be fixed and placed within the second recess (434) by the adhesive material.

A plurality of third recesses (431) may be formed on the outer surface of the side of the prism mover (400a). For example, a plurality of third recesses (431) may be formed on the outer surface of the third side (430) of the prism unit (400). Preferably, the third recesses (431) may be provided with the same size as the first recess (131), or may be provided with a different size. The third recess (431) may be arranged adjacent to the second recess (434) and spaced apart from the second recess (434). Preferably, the third recess (431) may be arranged spaced apart from the second recess (434). At this time, the depth of the third recess (431) may be different from the depth of the second recess (434). Additionally, the depth of the third recess (431) may be the same as the depth of the second recess (434).

The third recess (431) may be spaced apart in the second direction with the second recess (434) as the center.

For example, the third recess (431) may include a first sub-third recess (432) and a second sub-third recess (433) spaced apart from the second recess (434) in the second direction (y-axis direction). At this time, the center of the second recess (434) may be located on an imaginary straight line connecting the centers of the first sub-third recess (432) and the second sub-third recess (433).

The third recess (431) may provide a space into which a plurality of first moving protrusions of the moving plate (500) disposed on one surface of the moving plate (500) are inserted or/and seated. At this time, the third recess (431) may not overlap with the first recess (131) of the housing in the z-axis direction.

The above prism mover (400a) may further include a plurality of recesses. The recesses may be grooves having a concave shape in the direction of the first space (335) on the outer surface of the side of the prism mover (400a).

The above plurality of recesses may include a fourth recess (411), a fifth recess (421), and a sixth recess (441).

For example, the fourth recess (411) may be formed on the outer surface of the first side (410) of the prism mover (400a). The fourth recess (411) may be formed in an area corresponding to the first housing hole (111) of the housing (100). The fourth recess (411) may be formed in an area corresponding to the first coil portion (311).

The fifth recess (421) may be formed on the outer surface of the second side (420) of the prism mover (400a). The fifth recess (421) may be formed in an area corresponding to the second-first housing hole (121) of the housing (100). The fifth recess (421) may be formed in an area corresponding to the second coil portion (312).

The sixth recess (441) may be formed on the outer surface of the fourth side (440) of the prism mover (400a). The sixth recess (441) may be formed in an area corresponding to the fourth housing hole (141) of the housing (100). The sixth recess (441) may be formed in an area corresponding to the third coil portion (313).

The fourth recess (411), the fifth recess (421), and the sixth recess (441) may be mounting portions where the magnet portion (320) is mounted. The fourth recess (411), the fifth recess (421), and the sixth recess (441) may be mounting portions where the yoke portion (330) is mounted.

For example, a first yoke (331) and a first magnet (321) may be arranged from the inside in the fourth recess (411). In addition, a second yoke (332) and a second magnet (322) may be arranged from the inside in the fifth recess (421). In addition, a third yoke (333) and a third magnet (323) may be arranged from the inside in the sixth recess (441). And these may be spaced apart from each other.

As described above, the prism mover (400a) may include a second recess (434) on the outer surface in which a first pulling member (610) is arranged, and a plurality of third recesses (431) arranged spaced apart from the second recess (434) in the y-axis direction.

Moving Plate

Fig. 14 is a front perspective view of a moving plate constituting the first camera actuator, and Fig. 15 is a rear perspective view of a moving plate constituting the first camera actuator.

Referring to FIGS. 14 and 15, the moving plate (500) may include a first surface (510) and a second surface (520).

One surface of the moving plate (500) may be provided with a plurality of moving protrusions that provide a rotation axis for rotating or tilting the prism unit (400) in a first direction (e.g., left-right direction or x-axis direction). The other surface of the moving plate (500) may be provided with a plurality of moving protrusions that provide a rotation axis for rotating or tilting the prism unit (400) in a second direction (e.g., up-down direction or y-axis direction).

As described above, in the embodiment, rotation of the prism unit (400) in the first direction is performed by a plurality of moving protrusions arranged on one surface of the moving plate (500), and rotation in the second direction is performed by a plurality of moving protrusions arranged on the other surface of the moving plate (500).

At this time, the moving plate (500) can be placed between the housing (100) and the prism unit (400).

The moving plate (500) is placed between the housing (100) and the prism unit (400), and is pressed by the pressurizing part (600) so that it can be pressed and supported by the housing (100) together with the prism unit (400).

Here, the moving plate (500) includes a plurality of protrusions on both sides.

At this time, the moving plate (500) can provide a rotation axis for the direction of movement of the prism unit (400) that moves by an external driving force, such as the coil unit (310) and the magnet unit (320).

The moving plate (500) may include a first surface (510).

The above first side (510) may be a side facing the third side (430) of the prism mover (400a).

A first moving protrusion (511) and a first moving recess (514) may be arranged on the first surface (510) of the moving plate (500). The first moving protrusion (511) functions as a rotation axis for rotating the prism unit (400) in the first direction. The first moving recess (514) may be a concave groove formed on the first surface (510) of the moving plate (500) as a second moving protrusion (521) is formed on the second surface (520).

That is, the moving plate (500) may be a flat plate-shaped member, and first and second moving protrusions (511, 521) are formed on both sides thereof, respectively. In addition, as the first and second moving protrusions (511, 521) are formed, corresponding first and second moving recesses (514, 524) may be formed on the opposite sides thereof.

The first moving protrusion (511) may be arranged to be spaced apart in the second direction (y-axis direction) based on the central region of the first surface (510) of the moving plate (500). Here, the central region of the first surface (510) may be an area facing the first pulling member (610) fixedly arranged to the prism unit (400). Preferably, the central region of the first surface (510) may be an area overlapping the first pulling member (610) fixedly arranged to the prism unit (400) in the z-axis direction. Accordingly, a hole (530) may be formed in the central region of the moving plate (500). The hole (530) of the moving plate (500) may be a hole that penetrates the first surface (510) and the second surface (520) of the moving plate (500) in the central region of the moving plate (500). The hole (530) may be formed in an area corresponding to the second recess (434) formed in the prism mover (400a). In addition, the hole (530) may be formed in an area corresponding to the third housing hole (134) of the housing (100). Preferably, the hole (530) of the moving plate (500) may overlap with the second recess (434) and the third housing hole (134) in the z-axis direction. Accordingly, the first pulling member (610) disposed in the second recess (434) and the second pulling member (620) disposed in the third housing hole (134) may be disposed to directly face each other through the hole (530) of the moving plate (500).

And, the first moving protrusion (511) is arranged to be spaced apart in the y-axis direction of the central region. That is, the first moving protrusion (511) may include a first sub-first moving protrusion (512) arranged to be spaced apart in the +y-axis direction with respect to the central region, and a second sub-first moving protrusion (513) arranged to be spaced apart in the -y-axis direction with respect to the central region.

The first sub-first moving protrusion (512) may correspond to the first sub-third recess (432). That is, at least a portion of the first sub-first moving protrusion (512) may be disposed within the first sub-third recess (432). That is, at least a portion of the first sub-first moving protrusion (512) may be inserted within the first sub-third recess (432). At this time, the height of the first sub-first moving protrusion (512) may be greater than the depth of the first sub-third recess (432). Accordingly, only a portion of the first sub-first moving protrusion (512) may be inserted within the first sub-third recess (432). Accordingly, the first surface (510) of the moving plate (500) can be spaced apart from the outer surface of the third side (430) of the prism mover (400a) while at least a part of the first sub-first moving protrusion (512) is inserted into the first sub-third recess (432).

The second sub-first moving protrusion (513) may correspond to the second sub-third recess (433). That is, at least a portion of the second sub-first moving protrusion (513) may be disposed within the second sub-third recess (433). That is, at least a portion of the second sub-first moving protrusion (513) may be inserted within the second sub-third recess (433). At this time, the height of the second sub-first moving protrusion (513) may be greater than the depth of the second sub-third recess (433). Accordingly, only a portion of the second sub-first moving protrusion (513) may be inserted within the second sub-third recess (433). Accordingly, the first surface (510) of the moving plate (500) can be spaced apart from the outer surface of the third side (430) of the prism mover (400a) while at least a portion of the second sub-first moving protrusion (513) is inserted into the second sub-third recess (433).

In addition, the first sub-first moving protrusion (512) and the second sub-first moving protrusion (513) are arranged in the y-axis direction with respect to the center of the moving plate (500), thereby providing a rotation axis for the prism unit (400) to rotate in the first direction (x-axis direction). That is, the prism unit (400) can be provided to be capable of rotational movement in the first direction (left-right direction) with the virtual first line formed by the first sub-first moving protrusion (512) and the second sub-first moving protrusion (513) as the reference axis.

The first moving recess (514) can be arranged spaced apart in the first direction (x-axis direction) based on the center area of the first surface (510) of the moving plate (500).

And, the first moving recess (514) is arranged to be spaced apart in the x-axis direction of the central region. That is, the first moving recess (514) may include a first sub-first moving recess (515) arranged to be spaced apart in the -x-axis direction with respect to the central region, and a second sub-first moving recess (516) arranged to be spaced apart in the +x-axis direction with respect to the central region.

The first sub-first moving recess (515) and the second sub-first moving recess (516) may correspond to the second moving protrusion (521) formed on the second surface (520) of the moving plate (500).

Additionally, the moving plate (500) may include a second surface (520).

The above second surface (520) may be a surface facing the inner surface of the third side (130) of the housing (100).

A second moving protrusion (521) and a second moving recess (524) may be arranged on the second surface (520) of the moving plate (500). The second moving protrusion (521) functions as a rotation axis that rotates the prism unit (400) in the second direction.

The second moving protrusion (521) may be arranged spaced apart in the first direction (x-axis direction) based on the central region of the second surface (520) of the moving plate (500). Here, the central region of the second surface (520) may be the region where the hole (530) is formed.

And, the second moving protrusion (521) is arranged to be spaced apart in the x-axis direction of the central region. That is, the second moving protrusion (521) may include a first sub-second moving protrusion (522) arranged to be spaced apart in the -x-axis direction with respect to the central region, and a second sub-second moving protrusion (523) arranged to be spaced apart in the +x-axis direction with respect to the central region.

The first sub-second moving protrusion (522) and the second sub-second moving protrusion (523) may correspond to the first sub-first recess (132) and the second sub-first recess (133) of the housing (100).

That is, the first sub-second moving protrusion (522) and the second sub-second moving protrusion (523) can be inserted into the first sub-first recess (132) and the second sub-first recess (133).

In addition, the first sub-second moving protrusion (522) and the second sub-second moving protrusion (523) are arranged in the x-axis direction with respect to the center of the moving plate (500), thereby providing a rotation axis for the prism unit (400) to rotate in the second direction. That is, the prism unit (400) can be provided to be capable of rotational movement in the second direction (up and down) with the virtual second line formed by the first sub-second moving protrusion (522) and the second sub-second moving protrusion (523) as the reference axis.

The second moving recess (524) can be arranged spaced apart in the second direction (y-axis direction) based on the center area of the second surface (520) of the moving plate (500).

And, the second moving recess (524) is arranged to be spaced apart in the y-axis direction from the central region. That is, the second moving recess (524) may include a first sub-second moving recess (525) arranged to be spaced apart in the +y-axis direction with respect to the central region, and a second sub-second moving recess (526) arranged to be spaced apart in the -y-axis direction with respect to the central region.

Figures 16 to 18 are drawings of the coupling relationship between the housing, the prism unit, the pressurizing portion, and the moving plate in the first camera actuator.

Referring to FIGS. 16 to 18, a first camera actuator according to an embodiment may include a moving plate (500). In addition, a pressing member (600) that generates an attractive force may be disposed on mutually facing surfaces between a housing (100) and a prism unit (400). That is, a first pulling member (610) may be disposed on one surface of the prism unit (400) (more specifically, a prism mover). In addition, a second pulling member (620) may be disposed on one surface of the housing (100) that faces one surface of the prism unit (400). At this time, the first pulling member (610) may be a magnet. In addition, the second pulling member (620) may be an electronic component. For example, the second pulling member (620) may be an electronic component having magnetism. For example, the second pulling member (620) may be an electronic component electrically connected to the substrate (200). For example, the second pulling member (620) may be a capacitor placed on the substrate (200).

The prism unit (400) can be pressed against the housing (100) while the moving plate (500) is inserted between the prism unit (400) and the housing (100) by the pressurizing portion (600). Accordingly, the prism unit (400) and the moving plate (500) can be supported by the housing (100).

The centers of each of the first pulling member (610), the moving plate (500), and the second pulling member (620) may overlap each other in the z-axis direction.

At this time, the first moving protrusion (511) of the moving plate (500) can be inserted into the third recess (431) of the prism unit (400).

The first sub-first moving protrusion (512) can be inserted into the first sub-third recess (432), and the second sub-first moving protrusion (513) can be inserted into the second sub-third recess (433).

And, the first sub-second moving protrusion (522) and the second sub-second moving protrusion (523) can be inserted into the first sub-first recess (132) and the second sub-first recess (133) of the housing (100).

In addition, the first sub-second moving protrusion (522) and the second sub-second moving protrusion (523) are arranged in the x-axis direction with respect to the center of the moving plate (500), thereby providing a rotation axis for the prism unit (400) to rotate in the second direction. That is, the prism unit (400) can be provided to be capable of rotational movement in the second direction (up and down) with the virtual second line formed by the first sub-second moving protrusion (522) and the second sub-second moving protrusion (523) as the reference axis.

Accordingly, the first moving protrusions arranged on one surface of the moving plate (500) serve as a rotation axis for rotating the prism unit (400) in a first direction corresponding to the x-axis, and the second moving protrusions arranged on the other surface of the moving plate (500) serve as a rotation axis for rotating the prism unit (400) in a second direction corresponding to the y-axis.

In addition, the embodiment has a technical effect of controlling tilting of the prism unit (400) along the first or second axis by the electromagnetic force between the first to third magnets (321, 322, 323) arranged on the prism mover (400a) and the first to third coil parts (311, 312, 313), thereby minimizing the occurrence of decenter or tilt phenomena when implementing OIS and thereby achieving the best optical characteristics.

For example, in the embodiment, when a moving plate (500) is placed between the housing (100) and the prism unit (400), the prism unit (400) is tilted in the first or second axis by the driving force of the image shake control unit (200, 300), thereby minimizing the occurrence of decent or tilt phenomena when implementing OIS, thereby achieving the best optical characteristics, and there is a technical effect of being able to implement an ultra-slim, ultra-small camera actuator.

In addition, the embodiment uses an electronic component disposed on a substrate (200) as a component of a pressing member (600) for pressing a prism unit (400) to a housing (100). Specifically, the embodiment uses a magnetic electronic component disposed on a substrate (200) as a second pulling member (620) constituting the pressing member (600). Specifically, the embodiment uses a magnetic capacitor disposed on a substrate (200) as the second pulling member (620) constituting the pressing member (600). Accordingly, in the embodiment, a separate magnet or yoke constituting the second pulling member (620) can be eliminated, and the manufacturing cost can be reduced accordingly. In addition, in the embodiment, if the capacitor disposed on the substrate (200) is not a pressurized portion, an external force may be generated due to the attractive force generated between the magnet constituting the pressurized portion (600) and the capacitor, which may cause a problem in the reliability of the OIS operation. In contrast, in the embodiment, by using the capacitor as a pulling member, the external force generated on the capacitor can be eliminated, thereby improving the reliability of the OIS operation.

Figures 19 and 20 are exemplary diagrams of the operation of the first camera actuator according to the embodiment.

Referring to FIGS. 19 and 20, the prism unit (400) according to the embodiment can be tilt-controlled along the first axis or the second axis by the driving force of the image shake control unit (200, 300).

First, referring to FIG. 19, the prism unit (400) can be provided to be capable of rotational movement in a first direction with the first imaginary line (L1) formed by the first moving protrusion (511) of the moving plate (500) as a reference axis. In detail, the image shake control unit (200, 300) can cause the prism unit (400) to rotate left and right.

For example, a repulsive force may be generated between a first coil portion of the first coil (311) adjacent to the moving plate (500) and a first magnet portion of the first magnet (321) corresponding thereto. An attractive force may be generated between a second coil portion of the first coil (311) distant from the moving plate (500) and a second magnet portion of the first magnet (321) corresponding thereto.

Additionally, an attractive force may be generated between the third coil portion of the second coil (312) adjacent to the moving plate (500) and the third magnet portion of the second magnet (322) corresponding thereto. A repulsive force may be generated between the fourth coil portion of the second coil (312) distant from the moving plate (500) and the fourth magnet portion of the second magnet (322) corresponding thereto.

Accordingly, the prism unit (400) can be tilted left and right with the first line (L1) as the reference axis. That is, the prism unit (400) can be tilted left and right by a predetermined angle with the first line (L1) as the reference. Accordingly, the movement path of light incident on the prism unit (400) can be controlled.

In addition, referring to FIG. 20, the prism unit (400) may be provided to be capable of rotational movement in a second direction with the virtual second line (L2) formed by the second moving protrusion (521) of the moving plate (500) as a reference axis. In detail, the image shake control unit (200, 300) may cause the prism unit (400) to rotate left and right.

For example, a repulsive force may be generated between the fifth coil portion of the third coil (313) adjacent to the moving plate (500) and the fifth magnet portion of the third magnet (323) adjacent to the moving plate (500). In addition, an attractive force may be generated between the sixth coil portion of the third coil (313) distant from the moving plate (500) and the sixth magnet portion of the third magnet (323) distant from the moving plate (500).

Accordingly, the prism unit (400) can be tilted downward with the second line (L2) as the reference axis. That is, the prism unit (400) can be tilted at a predetermined angle in the vertical direction with the second line (L2) as the reference. Accordingly, the movement path of light incident on the prism unit (400) can be controlled.

Fig. 21 is a perspective view of a camera module according to an embodiment, and Fig. 22 is a perspective view of a camera module according to an embodiment with some components omitted.

Referring to FIGS. 21 and 22, the camera module (10) according to the embodiment may include one or more camera actuators. For example, the camera module (10) may include the first camera actuator (1000) and the second camera actuator (2000) described above, and may include a cover case (15) that protects the first camera actuator (1000) and the second camera actuator (2000).

The first camera actuator (1000) may be an OIS (Optical Image Stabilizer) actuator. In this case, light incident on the camera module (10) from the outside may first be incident on the first camera actuator (1000). In addition, the light incident on the first camera actuator (1000) may have its path changed and may be incident on the second camera actuator (2000). Subsequently, the light passing through the second camera actuator (2000) may be incident on the image sensor (2900).

The second camera actuator (2000) may be a zoom and/or auto focus actuator. The second camera actuator (2000) may include a plurality of lenses. The second camera actuator (2000) may perform a zoom or auto focus function by moving at least one lens in the optical axis direction according to a control signal from a control unit. The second camera actuator (2000) will be described in more detail with reference to the drawings to be described later.

<Second Camera Actuator>

Fig. 23 is an exploded perspective view of a second camera actuator according to an embodiment, and Fig. 24 is a cross-sectional view of the second camera actuator according to an embodiment. In addition, Fig. 25 is a front view of the second camera actuator according to an embodiment, and Fig. 26 is a perspective view illustrating third and fourth driving units arranged in a housing in the second camera actuator according to an embodiment. In addition, Figs. 27 and 28 are exploded perspective views of the first and second driving units according to an embodiment, and Fig. 29 is a perspective view of some components in the second camera actuator according to an embodiment.

Referring to FIGS. 23 to 29, a second camera actuator (2000) according to an embodiment may include a second housing (2100), a first lens unit (2105), a first lens barrel (2200), a third driving unit (2300), a second lens barrel (2400), and a fourth driving unit (2500).

The second housing (2100) may form the exterior of the second camera actuator (2000). The second housing (2100) may have some upper and lower areas open and may have a hexahedral shape.

The second housing (2100) may include an accommodation space therein. The first lens barrel (2200), the third driving unit (2300), the second lens barrel (2400), and the fourth driving unit (2500) may be accommodated within the accommodation space of the second housing (2100).

The second housing (2100) may include a first sub-housing (2110) and a second sub-housing (2120).

The first sub-housing (2110) may include a first hole (2111). The first hole (2111) may be formed on one side of the first sub-housing (2110). The first hole (2111) may be a hollow hole that penetrates the outside and inside of the first sub-housing (2110).

The first sub-housing (2110) may further include a second hole (2112) and a third hole (2113). The second hole (2112) and the third hole (2113) may be disposed on one side of the first sub-housing (2110). The second hole (2112) and the third hole (2113) may be hollow holes that penetrate the outer and inner sides of the first sub-housing (2110). The second hole (2112) and the third hole (2113) may be spaced apart from the first hole (2111). In detail, the first hole (2111) may be disposed between the second hole (2112) and the third hole (2113). The first hole (2111) can be arranged at equal intervals with the second hole (2112) and the third hole (2113).

The second hole (2112) may include a plurality of protrusions protruding from the inner surface of the second hole (2112) toward the center of the second hole (2112). For example, the plurality of protrusions may include a first protrusion (2112a) positioned at an upper end of the second hole (2112) based on the optical axis direction, and a second protrusion (2112b) positioned at a lower end of the second hole (2112).

In detail, the first protrusion (2112a) may include a plurality of first sub-protrusions (not shown) that are spaced apart from each other. The plurality of first sub-protrusions may be arranged at equal intervals along a concentric circle from the center of the second hole (2112). In addition, the second protrusion (2112b) may be spaced apart from the first protrusion (2112a) in the optical axis direction. The second protrusion (2112b) may be arranged lower than the first protrusion (2112a). The second protrusion (2112b) may include a plurality of second sub-protrusions (not shown) that are spaced apart from each other. The plurality of second sub-protrusions may be arranged at equal intervals along a concentric circle from the center of the second hole (2112). The above first protrusion (2112a) and the above second protrusion (2112b) can provide a space in which a part of the third driving unit (2300) to be described later, for example, the first buffer member (2321) is placed.

The third hole (2113) may include a plurality of protrusions protruding from the inner surface of the third hole (2113) toward the center of the third hole (2113). The plurality of protrusions may include a third protrusion (2113a) positioned at the upper end of the third hole (2113) based on the optical axis direction and a fourth protrusion (2113b) positioned at the lower end of the second hole (2112).

The third protrusion (2113a) may include a plurality of third sub-protrusions (not shown) that are spaced apart from each other. The plurality of third sub-protrusions may be arranged at equal intervals along a concentric circle from the center of the third hole (2113). In addition, the fourth protrusion (2113b) may be spaced apart from the third protrusion (2113a) in the optical axis direction. The fourth protrusion (2113b) may include a plurality of fourth sub-protrusions (not shown) that are spaced apart from each other. The plurality of fourth sub-protrusions may be arranged at equal intervals along a concentric circle from the center of the third hole (2113). The third protrusion (2113a) and the fourth protrusion (2113b) may provide a space in which a part of a fourth driving unit (2500) to be described later, for example, a third buffer member (2521), is arranged.

The second sub-housing (2120) may be positioned below the first sub-housing (2110). In detail, the second sub-housing (2120) may be positioned below the first sub-housing (2110) with respect to the third direction (z-axis, optical axis direction). The second sub-housing (2120) may be positioned closer to the image sensor (2900), which will be described later, than the first sub-housing (2110). The first lens barrel (2200), the third driving unit (2300), the second lens barrel (2400), and the fourth driving unit (2500) may be positioned within the second sub-housing (2120).

The second sub-housing (2120) can be coupled with the first sub-housing (2110). For example, the first sub-housing (2110) and the second sub-housing (2120) can be coupled by a separate fastening member (not shown) such as a screw. In addition, the first sub-housing (2110) and the second sub-housing (2120) can be coupled to each other by physical coupling of the coupling jaw and coupling groove formed respectively.

The first lens unit (2105) is disposed within the second housing (2100) and may include at least one lens. For example, the first lens unit (2105) may be disposed within the first sub-housing (2110). In detail, the first lens unit (2105) may be disposed within the first hole (2111) of the first sub-housing (2110). For example, the first lens unit (2105) may be coupled to the first sub-housing (2110) by a screw thread formed on the inner surface of the first hole (2111).

The first lens barrel (2200) may be disposed within the second housing (2100). The first lens barrel (2200) may be disposed within the second sub-housing (2120). The first lens barrel (2200) may be disposed below the first lens unit (2105). For example, the first lens barrel (2200) may be disposed below the first lens unit (2105) based on the optical axis direction, and may be closer to the image sensor (2900) than the first lens unit (2105). The first lens barrel (2200) may be coupled to the third driving unit (2300). The first lens barrel (2200) may be moved within the second housing (2100) by the third driving unit (2300). In detail, the first lens barrel (2200) can move in the optical axis direction by the third driving unit (2300).

The above first lens barrel (2200) may include a first barrel portion (2210), a second lens portion (2205), a first guide portion (2220), and a first elastic portion (2230).

The first barrel portion (2210) is positioned in an area overlapping the optical axis and may have a shape with one side and the other side open. For example, the first barrel portion (2210) may have a cylindrical shape with one side and the other side open.

The first barrel portion (2210) may include the first through hole (2211). The first through hole (2211) may be a through hole penetrating one side and the other side of the first barrel portion (2210). Here, one side of the first barrel portion (2210) may be a side facing the first lens portion (2105), and the other side may be a side opposite to the one side and facing the image sensor (2900).

The second lens portion (2205) may be placed on the first barrel portion (2210). In detail, the second lens portion (2205) may be placed within the first through hole (2211). For example, a screw line may be formed on the inner circumferential surface of the first through hole (2211), and the second lens portion (2205) may be coupled to the first barrel portion (2210) by the screw line.

The second lens unit (2205) may include at least one lens. The second lens unit (2205) may perform a zoom function. The second lens unit (2205) may move in the optical axis direction. Specifically, the second lens unit (2205) may move in the optical axis direction with respect to the first lens unit (2105).

The first guide portion (2220) may extend outward from the first barrel portion (2210). For example, the first guide portion (2220) may extend from the first barrel portion (2210) in a direction perpendicular to the optical axis, for example, in the first direction (x-axis direction).

The above first guide portion (2220) may include a first upper surface (2221), a first side surface (2222), and a first lower surface (2223).

The first upper surface (2221) may face the inner upper surface of the second housing (2100). The first upper surface (2221) may face the inner upper surface of the second housing (2100) in a second direction (y-axis direction). The first upper surface (2221) may include a plurality of sub-upper surfaces. In detail, the first upper surface (2221) may include the first sub-upper surface (2221a) and a second sub-upper surface (2221b) that is disposed lower than the first sub-upper surface (2221a) in the second direction (y-axis direction). That is, the second sub-upper surface (2221b) may be disposed closer to the first lower surface (2223) than the first sub-upper surface (2221a). At least one first fastening protrusion (not shown) may be arranged on the second sub-upper surface (2221b). The first fastening protrusion may have a shape that protrudes upward from the second sub-upper surface (2221b). The first fastening protrusion may be inserted into a first fixing groove (not shown) formed in a first elastic member (2230) to be described later.

In addition, the first upper surface (2221) may include a first step surface (2225) disposed between the first sub-upper surface (2221a) and the second sub-upper surface (2221b). The first step surface (2225) may be connected to the ends of the first sub-upper surface (2221a) and the second sub-upper surface (2221b). The first step surface (2225) may be defined as the first step portion (2225). That is, the first upper surface (2221) may include the first sub-upper surface (2221a), the second sub-upper surface (2221b), and the first step portion (2225) and may have a step structure.

The first lower surface (2223) may face the inner lower surface of the second housing (2100) to be described later. A first groove (223h1) may be arranged on the first lower surface (2223). The first groove (223h1) may have a concave shape in the direction from the first lower surface (2223) toward the first upper surface (2221). A first magnetic scaler (2610) to be described later may be arranged within the first groove (223h1).

In addition, a second groove (2223h2) may be arranged on the first lower surface (2223). The second groove (2223h2) may be spaced apart from the first groove (223h1). The second groove (2223h2) may be arranged in an edge region of the first lower surface (2223). The second groove (2223h2) may provide an area where a portion of the first elastic part (2230), which will be described later, is arranged. In detail, the second groove (2223h2) may provide an area where the first elastic part (2230) is placed and fixed.

The first side surface (2222) may be arranged between the first upper surface (2221) and the first lower surface (2223). In detail, the first side surface (2222) may be a surface connecting the first upper surface (2221) and the first lower surface (2223). Even more specifically, the first side surface (2222) may be a surface connecting the second sub-upper surface (2221b) and the first lower surface (2223). The first side surface (2222) may face the second inner surface of the second sub-housing (2120), which will be described later.

A first recess (2222h) may be arranged on the first side surface (2222). The first recess (2222h) may have a concave shape from the first side surface (2222) toward the first barrel portion (2210). In addition, the first recess (2222h) may have a groove shape extending in the optical axis direction (z-axis direction). The first recess (2222h) may have a V-shape when viewed from the front.

The first guide portion (2220) may include a first insertion hole (2220h1). The first insertion hole (2220h1) may be a hole penetrating one side and the other side of the first guide portion (2220). Here, one side of the first guide portion (2220) may be a side facing the first lens portion (2105), and the other side may be a side opposite to the one side and facing the image sensor (2900).

A first pin (2250) may be arranged within the first insertion hole (2220h1). The first pin (2250) may be arranged to penetrate the first insertion hole (2220h1). The first pin (2250) may extend in the optical axis direction (z-axis direction) and may have a longer optical axis length than the first lens barrel (2200). The first pin (2250) may be coupled to at least one housing among the first sub-housing (2110) and the second sub-housing (2120). The first lens barrel (2200) may move in the optical axis direction with the first pin (2250) as the moving axis. Through this, the second lens unit (2205) arranged in the first lens barrel (2200) may perform a zoom function and/or an auto focus function.

The first elastic member (2230) may be disposed on the first guide member (2220). For example, the first elastic member (2230) may be disposed on the first upper surface (2221), the first lower surface (2223), and the first side surface (2222) of the first guide member (2220). The first elastic member (2230) may be coupled with the first guide member (2220).

The above first elastic member (2230) may include a first elastic member (2231) and a second elastic member (2232).

The first elastic member (2231) can be combined with the first guide portion (2220). The first elastic member (2231) can be positioned at a set position on the first side (2222).

The first elastic member (2231) may have a shape corresponding to the first side surface (2222). For example, the first elastic member (2231) may include a first region (2231a), a second region (2231b), and a third region (2231c).

The first region (2231a) and the second region (2231b) may be arranged on the first side (2222) of the first guide portion (2220) and may be spaced apart from each other. The first region (2231a) and the second region (2231b) may be arranged on an area of the first side (2222) where the first recess (2222h) is not arranged.

The third region (2231c) may be positioned between the first region (2231a) and the second region (2231b) to connect the two regions (2231a, 2231b). The third region (2231c) may be positioned in a region corresponding to the first recess (2222h). The third region (2231c) may have a V-shape corresponding to the first recess (2222h).

The second elastic member (2232) may be placed on the first guide portion (2220). The second elastic member (2232) may be coupled with the first guide portion (2220).

The above second elastic member (2232) may include a fourth region (2232a), a fifth region (2232b), and a sixth region (2232c).

The fourth region (2232a) may be arranged on the first upper surface (2221) of the first guide portion (2220). In detail, the fourth region (2232a) may be arranged on the second sub-upper surface (2221b) of the first guide portion (2220). The fourth region may include a first fixing groove (not shown). The first fixing groove may be arranged in an area corresponding to the first fastening protrusion and may have a shape corresponding to the first fastening protrusion.

The fifth region (2232b) may be connected to the fourth region (2232a). For example, the fifth region (2232b) may be bent at one end of the fourth region (2232a) and may be arranged on the first side (2222) of the first guide portion (2220). The fifth region (2232b) may be arranged on the first elastic member (2231). The fifth region (2232b) may be parallel to the first region (2231a) and the second region (2231b). The fifth region (2232b) may be arranged to cover the first elastic member (2231).

The sixth region (2232c) may be connected to the fifth region (2232b). For example, the sixth region (2232c) may be bent at one end of the fifth region (2232b) and placed on the first lower surface (2223) of the first guide portion (2220). A portion of the sixth region (2232c) may be inserted and placed within the second groove (2223h2) placed on the first lower surface (2223).

That is, the second elastic member (2232) can be physically coupled with the first guide portion (2220) by having the first fixing groove formed in the fourth region (2232a) engage with the first fastening protrusion and the sixth region (2232c) being inserted into the second groove (2223h2). Accordingly, the first elastic member (2230) can maintain a state of being firmly coupled with the first guide portion (2220).

In addition, the first lens barrel (2200) may further include a first guide groove (2210h1). The first guide groove (2210h1) may be arranged in an area extending outward from the first barrel portion (2210). The first guide groove (2210h1) may be arranged in an area corresponding to the second pin (2450) to be described later. The first guide groove (2210h1) may provide a space into which the second pin (2450) is inserted. The first lens barrel (2200) may move in the optical axis direction by the first pin (2250) and the second pin (2450). At this time, the first guide groove (2210h1) may have a form in which one side is open. For example, the first guide groove (2210h1) may have an open side facing the first inner surface of the second housing (2100). Accordingly, friction and vibration generated when the first lens barrel (2200) moves by the third driving unit (2300) can be minimized.

The second camera actuator (2000) may include a third driving unit (2300). The third driving unit (2300) may be positioned within the second housing (2100). The third driving unit (2300) may be coupled to the first lens barrel (2200). The third driving unit (2300) may move the first lens barrel (2200) in the optical axis direction (z-axis direction).

The third driving unit (2300) may include a first piezoelectric element (2310), a first extension bar (2320), a first buffer member (2321), and a second buffer member (2322).

The first piezoelectric element (2310) may include a piezoelectric device. For example, the first piezoelectric element (2310) may include a material that causes mechanical deformation by an applied power source. The first piezoelectric element (2310) may contract or expand by the applied power source and cause mechanical deformation in a set direction. For example, the first piezoelectric element (2310) may cause mechanical deformation in the optical axis direction (z-axis direction) by the applied power source and may generate vibration.

The first piezoelectric element (2310) may include a first circular plate portion (2311) and a first protrusion portion (2112). The first circular plate portion (2311) may have a plate shape and may be disposed on the second hole (2112). For example, the first circular plate portion (2311) may be disposed on the first protrusion (2112a) of the second hole (2112). In detail, the first circular plate portion (2311) may be disposed on the plurality of first sub-protrusions. The first protrusion (2112a) may support the first circular plate portion (2311).

The first protrusion (2512) may be arranged at the lower portion of the first plate portion (2311). In detail, the first protrusion (2512) may be arranged below the first plate portion (2311) in the third direction (z-axis direction) and may be connected to the first plate portion (2311). A portion of the first protrusion (2512) may be arranged within the second hole (2112). The first protrusion (2512) may have a shape that protrudes toward the image sensor (2900). The width (x-axis, y-axis direction) of the first protrusion (2512) may change as it goes in the optical axis direction. For example, the width of the first protrusion (2512) may decrease as it gets closer to the image sensor (2900).

The first extension bar (2320) may extend in the direction of the optical axis. The first extension bar (2320) may be arranged parallel to the optical axis and may be connected to the first piezoelectric element (2310). For example, the upper end of the first extension bar (2320) may be connected to the first protrusion (2512). In addition, the lower end of the first extension bar (2320) may be inserted into a fourth hole (not shown) formed in the lower end of the second housing (2100), for example, the lower end of the second sub-housing (2120).

In addition, the first extension bar (2320) may have one region connected to the first lens barrel (2200). For example, the first extension bar (2320) may be connected to the first lens barrel (2200) by the first elastic member (2230). In detail, the first extension bar (2320) may be arranged between the first elastic member (2231) and the second elastic member (2232). More specifically, the first extension bar (2320) may be arranged between the third region (2231c) of the first elastic member (2231) and the fifth region (2232b) of the second elastic member (2232). The first extension bar (2320) may be fixed by the elastic force of the first elastic member (2231) and the second elastic member (2232).

The first extension bar (2320) can transmit vibration generated from the first piezoelectric element (2310) to the first lens barrel (2200). The first lens barrel (2200) can move upward or downward (in the z-axis direction, in the optical axis direction) depending on the vibration direction of the first extension bar (2320). Through this, the second lens unit (2205) within the first lens barrel (2200) can move to perform a zooming function of zooming up or zooming out.

The first buffer member (2321) may be disposed on the first extension bar (2320). The first buffer member (2321) may be disposed on an upper region of the first extension bar (2320). The first buffer member (2321) may be disposed within the second hole (2112) of the second housing (2100). For example, the first buffer member (2321) may be disposed between the first protrusion (2112a) and the second protrusion (2112b) of the second hole (2112). The first buffer member (2321) may be fixed to a position set by the first protrusion (2112a) and the second protrusion (2112b). In addition, the first buffer member (2321) may include a through hole into which the first extension bar (2320) is inserted.

The second buffer member (2322) may be disposed on the first extension bar (2320). The second buffer member (2322) may be disposed on a lower region of the first extension bar (2320). The second buffer member (2322) may be spaced apart from the first buffer member (2321) in the optical axis direction. The second buffer member (2322) may be disposed in a fourth hole (not shown) of the second housing (2100). The second buffer member (2322) may be disposed by being inserted into the fourth hole. The second buffer member (2322) may include a through hole into which the first extension bar (2320) is inserted.

The first buffer member (2321) and the second buffer member (2322) can prevent noise due to vibration of the first extension bar (2320). In addition, the first buffer member (2321) and the second buffer member (2322) can prevent the first extension bar (2320) from being deformed or damaged due to external impact.

The second lens barrel (2400) may be disposed within the second housing (2100). The second lens barrel (2400) may be disposed within the second sub-housing (2120). The second lens barrel (2400) may be disposed below the first lens barrel (2200). For example, the second lens barrel (2400) may be disposed below the first lens barrel (2200) based on the optical axis direction, and may be closer to the image sensor (2900) than the first lens barrel (2200). The second lens barrel (2400) may be coupled to the fourth driving unit (2500). The second lens barrel (2400) may be moved within the second housing (2100) by the fourth driving unit (2500). In detail, the second lens barrel (2400) can move in the optical axis direction by the fourth driving unit (2500).

The above second lens barrel (2400) may include a second barrel portion (2410), a third lens portion (2405), a second guide portion (2420), and a second elastic portion (2430).

The second barrel portion (2410) is positioned in an area overlapping the optical axis and may have a shape with one side and the other side open. For example, the second barrel portion (2410) may have a cylindrical shape with one side and the other side open.

The second barrel portion (2410) may include the second through hole (2411). The second through hole (2411) may be a through hole penetrating one side and the other side of the second barrel portion (2410). Here, one side of the second barrel portion (2410) may be a side facing the first lens barrel (2200), and the other side may be a side opposite to the one side and facing the image sensor (2900).

The third lens unit (2405) may be placed on the second barrel unit (2410). Specifically, the third lens unit (2405) may be placed within the second through hole (2411). For example, a screw line may be formed on the inner circumference of the second through hole (2411), and the third lens unit (2405) may be coupled to the second barrel unit (2410) by the screw line.

The third lens unit (2405) may include at least one lens. The third lens unit (2405) may perform an auto focus function. The third lens unit (2405) may move in the optical axis direction. Specifically, the third lens unit (2405) may move in the optical axis direction with respect to the first lens unit (2105). The third lens unit (2405) may move independently from the second lens unit (2205). In addition, the distance by which the third lens unit (2405) may move in the optical axis direction may be the same as or different from that of the second lens unit (2205).

The second guide portion (2420) may extend outward from the second barrel portion (2410). For example, the second guide portion (2420) may extend from the second barrel portion (2410) in a direction perpendicular to the optical axis, for example, in the first direction (x-axis direction). At this time, the second guide portion (2420) may extend in a direction opposite to the first guide portion (2220). For example, the first guide portion (2220) may extend from the first barrel portion (2210) in the +x-axis direction, and the second guide portion (2420) may extend from the second barrel portion (2410) in the -x-axis direction.

The above second guide portion (2420) may include a second lower surface (2421), a second side surface (2422), and a second upper surface (2423).

The second upper surface (2423) may face the inner upper surface of the second housing (2100). The second upper surface (2423) may face the inner upper surface of the second housing (2100) in a second direction (y-axis direction). A third groove (2423h1) may be arranged on the second upper surface (2423). The third groove (2423h1) may have a concave shape in the direction from the second upper surface (2423) toward the second lower surface (2421). A second magnetic scaler (2620), which will be described later, may be arranged within the third groove (2423h1).

In addition, a fourth groove (2423h2) may be arranged on the second upper surface (2423). The fourth groove (2423h2) may be spaced apart from the third groove (2423h1). The fourth groove (2423h2) may be arranged in an edge region of the second upper surface (2423). The fourth groove (2423h2) may provide an area where a portion of the second elastic part (2430), which will be described later, is arranged. In detail, the fourth groove (2423h2) may provide an area where the second elastic part (2430) is placed and fixed.

The second lower surface (2421) may face the inner lower surface of the second housing (2100). The second lower surface (2421) may face the inner lower surface of the second housing (2100) in a second direction (y-axis direction). The second lower surface (2421) may include a plurality of sub-lower surfaces. In detail, the second lower surface (2421) may include the first sub-lower surface (2421a) and a second sub-lower surface (2421b) that is disposed higher in the second direction (y-axis direction) than the first sub-lower surface (2421a). That is, the second sub-lower surface (2421b) may be disposed closer to the second upper surface (2423) than the first sub-lower surface (2421a). At least one second fastening protrusion (not shown) may be disposed on the second sub-lower surface (2421b). The second fastening protrusion may have a shape that protrudes downward from the second sub-lower surface (2421b). The second fastening protrusion may be inserted into a second fixing groove (not shown) formed in a second elastic member (2430) to be described later.

In addition, the second lower surface (2421) may include a second step surface (2425) disposed between the first sub lower surface (2421a) and the second sub lower surface (2421b). The second step surface (2425) may be connected to the ends of the first sub lower surface (2421a) and the second sub lower surface (2421b). The second step surface (2425) may be defined as the second step portion (2425). That is, the second lower surface (2421) may include the first sub lower surface (2421a), the second sub lower surface (2421b), and the second step portion (2425) and may have a step structure.

The second side surface (2422) may be disposed between the second upper surface (2423) and the second lower surface (2421). In detail, the second side surface (2422) may be a surface connecting the second upper surface (2423) and the second lower surface (2421). More specifically, the second side surface (2422) may be a surface connecting the second sub-lower surface (2421b) and the second upper surface (2423). The second side surface (2422) may face the first inner surface of the second sub-housing (2120) described below.

A second recess (2422h) may be arranged on the second side surface (2422). The second recess (2422h) may have a concave shape from the second side surface (2422) toward the second barrel portion (2410). In addition, the second recess (2422h) may have a groove shape extending in the optical axis direction (z-axis direction). The second recess (2422h) may have a V-shape when viewed from the front.

The second guide portion (2420) may include a second insertion hole (2420h1). The second insertion hole (2420h1) may be a hole penetrating one side and the other side of the second guide portion (2420). Here, one side of the second guide portion (2420) may be a side facing the first lens barrel (2200), and the other side may be a side opposite to the one side and facing the image sensor (2900).

A second pin (2450) may be placed within the second insertion hole (2420h1). The second pin (2450) may be placed so as to penetrate the second insertion hole (2420h1). The second pin (2450) may have a shape extending in the optical axis direction (z-axis direction). The second pin (2450) may be spaced apart from the first pin (2250) and may be parallel to the first pin (2250). The second pin (2450) may have a length in the optical axis direction that is longer than the second lens barrel (2400). The second pin (2450) may be coupled to at least one housing among the first sub-housing (2110) and the second sub-housing (2120). The second lens barrel (2400) can move in the optical axis direction with the second pin (2450) as the moving axis. Through this, the third lens unit (2405) arranged in the second lens barrel (2400) can perform a zoom function and/or an auto focus function.

The second elastic member (2430) may be disposed on the second guide member (2420). For example, the second elastic member (2430) may be disposed on the second upper surface (2423), the second lower surface (2421), and the second side surface (2422) of the second guide member (2420). The second elastic member (2430) may be coupled with the second guide member (2420).

The second elastic member (2430) may include a third elastic member (2431) and a fourth elastic member (2432).

The third elastic member (2431) can be combined with the second guide portion (2420). The third elastic member (2431) can be positioned at a set position on the second side (2422).

The third elastic member (2431) may have a shape corresponding to the second side (2422). For example, the third elastic member (2431) may include a seventh region (2431a), an eighth region (2431b), and a ninth region (2431c).

The seventh region (2431a) and the eighth region (2431b) may be arranged on the second side (2422) of the second guide portion (2420) and may be spaced apart from each other. The seventh region (2431a) and the eighth region (2431b) may be arranged on an area of the second side (2422) where the second recess (2422h) is not arranged.

The ninth region (2431c) may be positioned between the first region (2231a) and the second region (2231b) to connect the two regions (2431a, 2431b). The ninth region (2431c) may be positioned in a region corresponding to the second recess (2422h). The ninth region (2431c) may have a V-shape corresponding to the second recess (2422h).

The fourth elastic member (2432) may be placed on the second guide portion (2420). The fourth elastic member (2432) may be coupled with the second guide portion (2420).

The fourth elastic member (2432) may include a tenth region (2432a), an eleventh region (2432b), and a twelfth region (2432c).

The above 10th region (2432a) may be arranged on the second lower surface (2421) of the second guide portion (2420). In detail, the 10th region (2432a) may be arranged on the second sub-lower surface (2421b) of the second guide portion (2420). The 10th region (2431a) may include a second fixing groove (not shown). The second fixing groove may be arranged in an area corresponding to the second fastening protrusion and may have a shape corresponding to the second fastening protrusion.

The eleventh region (2432b) may be connected to the tenth region (2432a). For example, the eleventh region (2432b) may be bent at one end of the tenth region (2432a) and may be arranged on the second side (2422) of the second guide portion (2420). The eleventh region (2432b) may be arranged on the third elastic member (2431). The eleventh region (2432b) may be parallel to the seventh region (2431a) and the eighth region (2431b). The eleventh region (2432b) may be arranged to cover the third elastic member (2431).

The 12th region (2432c) may be connected to the 11th region (2432b). For example, the 12th region (2432c) may be bent at one end of the 11th region (2432b) and placed on the second upper surface (2423) of the second guide portion (2420). A portion of the 12th region (2432c) may be inserted and placed within the fourth groove (2423h2) placed on the second upper surface (2423).

That is, the fourth elastic member (2432) can be physically coupled with the second guide portion (2420) by having the second fixing groove formed in the seventh region (2431a) engage with the second fastening protrusion and the twelfth region (2432c) be inserted into the fourth groove (2423h2). Accordingly, the second elastic member (2430) can maintain a state of being firmly coupled with the second guide portion (2420).

In addition, the second lens barrel (2400) may further include a second guide groove (2410h1). The second guide groove (2410h1) may be arranged in an area extending outward from the second barrel portion (2410). The second guide groove (2410h1) may be arranged in an area corresponding to the first pin (2250). The second guide groove (2410h1) may provide a space into which the first pin (2250) is inserted. The second lens barrel (2400) may move in the optical axis direction by the first pin (2250) and the second pin (2450). At this time, the second guide groove (2410h1) may have a form in which one side is open. For example, the second guide groove (2410h1) may have an open side facing the second inner surface of the second housing (2100). Accordingly, friction and vibration generated when the second lens barrel (2400) moves by the fourth driving unit (2500) can be minimized.

The second camera actuator (2000) may include a fourth driving unit (2500). The fourth driving unit (2500) may be positioned within the second housing (2100). The fourth driving unit (2500) may be coupled to the second lens barrel (2400). The fourth driving unit (2500) may move the second lens barrel (2400) in the optical axis direction (z-axis direction).

The fourth driving unit (2500) may include a second piezoelectric element (2510), a second extension unit (2520), a third buffer member (2521), and a fourth buffer member (2522).

The second piezoelectric element (2510) may include a piezoelectric device. For example, the second piezoelectric element (2510) may include a material that causes mechanical deformation by an applied power source. The second piezoelectric element (2510) may contract or expand by the applied power source and cause mechanical deformation in a set direction. For example, the second piezoelectric element (2510) may cause mechanical deformation in the optical axis direction (z-axis direction) by the applied power source and may generate vibration.

The second piezoelectric element (2510) may include a second plate portion (2511) and a second protrusion portion (2512). The second plate portion (2511) may have a plate shape and may be disposed on the third hole (2113). For example, the second plate portion (2511) may be disposed on the third protrusion (2113a) of the third hole (2113). In detail, the second plate portion (2511) may be disposed on the plurality of third sub-protrusions. The third protrusion (2113a) may support the second plate portion (2511).

The second protrusion (2512) may be arranged at the lower portion of the second plate portion (2511). In detail, the second protrusion (2512) may be arranged below the second plate portion (2511) in the third direction (z-axis direction) and may be connected to the second plate portion (2511). A portion of the first protrusion (2512) may be arranged within the third hole (2113). The second protrusion (2512) may have a shape that protrudes toward the image sensor (2900). The width (x-axis, y-axis direction) of the second protrusion (2512) may change as it goes in the optical axis direction. For example, the width of the second protrusion (2512) may decrease as it gets closer to the image sensor (2900).

The second extension portion (2520) may extend in the direction of the optical axis. The second extension portion (2520) may be arranged parallel to the optical axis and may be connected to the second piezoelectric element (2510). For example, the upper end of the second extension portion (2520) may be connected to the second protrusion portion (2512). In addition, the lower end of the second extension portion (2520) may be inserted into a fifth hole (not shown) formed in the lower end of the second housing (2100), for example, the lower end of the second sub-housing (2120).

In addition, the second extension part (2520) may have one area connected to the second lens barrel (2400). For example, the second extension part (2520) may be connected to the second lens barrel (2400) by the second elastic part (2430). In detail, the second extension part (2520) may be disposed between the third elastic member (2431) and the fourth elastic member (2432). More specifically, the second extension part (2520) may be disposed between the ninth area (2431c) of the third elastic member (2431) and the eleventh area (2432b) of the fourth elastic member (2432). The second extension part (2520) may be fixed by the elastic force of the third elastic member (2431) and the fourth elastic member (2432).

The second extension part (2520) can transmit the vibration generated from the second piezoelectric element (2510) to the second lens barrel (2400). The second lens barrel (2400) can move upward or downward (in the z-axis direction, in the optical axis direction) depending on the vibration direction of the second extension part (2520). Through this, the third lens part (2405) within the second lens barrel (2400) can move to perform a zooming function of zooming up or zooming out.

The third buffer member (2521) may be disposed on the second extension portion (2520). The third buffer member (2521) may be disposed on an upper region of the second extension portion (2520). The third buffer member (2521) may be disposed within the third hole (2113) of the second housing (2100). For example, the third buffer member (2521) may be disposed between the third protrusion (2113a) and the fourth protrusion (2113b) of the third hole (2113). The third buffer member (2521) may be fixed to a position set by the third protrusion (2113a) and the fourth protrusion (2113b). In addition, the third buffer member (2521) may include a through hole into which the second extension portion (2520) is inserted.

The fourth buffer member (2522) may be disposed on the second extension portion (2520). The fourth buffer member (2522) may be disposed on a lower region of the second extension portion (2520). The fourth buffer member (2522) may be spaced apart from the third buffer member (2521) in the optical axis direction. The fourth buffer member (2522) may be disposed in a fifth hole (not shown) of the second housing (2100). The fourth buffer member (2522) may be disposed by being inserted into the fifth hole. The second buffer member (2322) may include a through hole into which the second extension portion (2520) is inserted.

The third buffer member (2521) and the fourth buffer member (2522) can prevent noise due to vibration of the second extension part (2520). In addition, the third buffer member (2521) and the fourth buffer member (2522) can prevent the second extension part (2520) from being deformed or damaged due to external impact.

The above second camera actuator (2000) may include a first magnetic scaler (2610), a first detection unit (not shown), a second magnetic scaler (2620), and a second detection unit (not shown).

The first magnetic scaler (2610) may be placed on the first lens barrel (2200). For example, the first magnetic scaler (2610) may be placed on the first lower surface (2223). In detail, the first magnetic scaler (2610) may be placed in the first groove (223h1) of the first lens barrel (2200). The first magnetic scaler (2610) may move along the optical axis direction together with the first lens barrel (2200).

The first magnetic scaler (2610) may include a plurality of magnets. For example, the first magnetic scaler (2610) may have N and S poles arranged alternately in the optical axis direction.

The first detection unit may be disposed adjacent to the first magnetic scaler (2610). For example, the first detection unit may be disposed facing the first magnetic scaler (2610) in a first direction (x-axis direction) or a second direction (y-axis direction). The first detection unit may detect the position of the first magnetic scaler (2610). Through this, the first detection unit may detect the position and movement of the first lens barrel (2200) moving together with the first magnetic scaler (2610).

The second magnetic scaler (2620) may be placed on the second lens barrel (2400). For example, the second magnetic scaler (2620) may be placed on the second upper surface (2423). In detail, the second magnetic scaler (2620) may be placed in the third groove (2423h1) of the second lens barrel (2400). The second magnetic scaler (2620) may move along the optical axis direction together with the second lens barrel (2400).

The second magnetic scaler (2620) may include a plurality of magnets. For example, the second magnetic scaler (2620) may have N and S poles arranged alternately in the optical axis direction.

In addition, the second detection unit may be disposed adjacent to the second magnetic scaler (2620). For example, the second detection unit may be disposed facing the second magnetic scaler (2620) in a first direction (x-axis direction) or a second direction (y-axis direction). The second detection unit may detect the position of the second magnetic scaler (2620). Through this, the second detection unit may detect the position and movement of the second lens barrel (2400) that moves together with the second magnetic scaler (2620).

Additionally, although not shown in the drawing, the second camera actuator (2000) according to the embodiment may further include a gyro sensor (not shown). The gyro sensor may be positioned within the second housing (2100). The gyro sensor may detect the movement of a user using the camera actuator.

A second camera actuator (2000) according to an embodiment may include a second substrate (2800). The second substrate (2800) may be disposed on the second housing (2100). The second substrate (2800) may be disposed to surround a portion of the second housing (2100). For example, the second substrate (2800) may be disposed to surround a portion of the outer side of the second sub-housing (2120). The second substrate (2800) may provide power or current to components disposed within the second housing (2100). That is, the second substrate (2800) may be a circuit board, and may include a circuit board having a wiring pattern that can be electrically connected, such as a rigid printed circuit board (Rigid PCB), a flexible printed circuit board (Flexible PCB), or a rigid-flexible printed circuit board (Rigid-Flexible PCB). The above second substrate (2800) can be electrically connected to the above-described first circuit substrate (310).

The second substrate (2800) may include a first end portion (2810). The first end portion (2810) may be disposed on the first piezoelectric element (2310) of the third driving unit (2300). For example, the first end portion (2810) may be disposed on the first plate portion (2311) of the first piezoelectric element (2310). In detail, the first end portion (2810) may be disposed on one surface of the first plate portion (2311). In addition, the first end portion (2810) may be disposed on the second piezoelectric element (2510) of the fourth driving unit (2500). For example, the second end portion (2820) may be disposed on the second plate portion (2511) of the second piezoelectric element (2510). In detail, the first end portion (2810) may be placed on one surface of the second disc portion (2511).

The second substrate (2800) may include a second end (2820). The first end (2810) may be spaced apart from the first end (2810). In addition, the second end (2820) may be positioned in an area that does not overlap with the first end (2810) based on the optical axis direction.

The second end (2820) may be disposed on the first piezoelectric element (2310) of the third driving unit (2300). For example, the second end (2820) may be disposed on the first disk portion (2311) of the first piezoelectric element (2310). In detail, the first end (2810) may be disposed on the other surface opposite to one surface of the first disk portion (2311). In addition, the second end (2820) may be disposed on the second piezoelectric element (2510) of the fourth driving unit (2500). For example, the second end (2820) may be disposed on the second disk portion (2511) of the second piezoelectric element (2510). In detail, the second end (2820) may be placed on the other side opposite to one side of the second disc portion (2511).

That is, the second substrate (2800) can supply power to the first piezoelectric element (2310) and the second piezoelectric element (2510). Accordingly, the third driving unit (2300) and the fourth driving unit (2500) can drive the first lens barrel (2200) and the second lens barrel (2400), respectively, by the applied power.

As described above, the second camera actuator (2000) according to the embodiment includes a third driving unit (2300) and a fourth driving unit (2500) including a piezoelectric element, and the first and second lens barrels (2200, 2400) can move in the optical axis direction by the third and fourth driving units (2300, 2500). However, the embodiment is not limited thereto, and the third and fourth driving units (2300, 2500) may include a VCM (Voice Coli Motor) or a shape memory alloy, etc. In this case, the third and fourth driving units (2300, 2500) can move the first and second lens barrels (2200, 2400) by using the electromagnetic force of the VCM or the physical change of the shape memory alloy.

A second camera actuator (2000) according to an embodiment may include an image sensor (2900). The image sensor (2900) may collect light passing through the first lens unit (2105), the second lens unit (2205), and the third lens unit (2405) in that order and convert the collected light into an image. The image sensor (2900) may be arranged such that the optical axes of the lenses of the lens units (105, 205, 405) are aligned. The optical axes of the image sensor (2900) and the lenses may be aligned.

Fig. 30 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied.

Referring to FIG. 30, the mobile terminal (3) may include a camera module (10), an auto focus device (31), and a flash module (33) provided on the rear.

The above camera module (10) may include an image capturing function and an auto-focus function. For example, the camera module (10) may include an auto-focus function using an image.

The above camera module (10) processes still or moving image frames obtained by the image sensor in shooting mode or video call mode. The processed image frames can be displayed on a predetermined display unit and stored in memory. A camera (not shown) may also be placed on the front of the mobile terminal body.

For example, the camera module (10) may include a first camera module (10A) and a second camera module (10B). At this time, at least one of the first camera module (10A) and the second camera module (10B) may include the above-described camera module, for example, the camera module (10) according to FIGS. 1 to 37. Accordingly, the camera module (10) may implement an OIS function along with a zoom function and an auto focus function.

The auto-focus device (31) may include an auto-focus function using a laser. The auto-focus device (31) may be mainly used in conditions where the auto-focus function using the image of the camera module (10) is degraded, for example, at a close range of 10 m or less or in a dark environment. The auto-focus device (31) may include a light-emitting unit including a vertical cavity surface-emitting laser (VCSEL) semiconductor element, and a light-receiving unit that converts light energy into electrical energy, such as a photodiode.

The above flash module (33) may include a light-emitting element that emits light therein. The flash module (33) may be operated by the camera operation of the mobile terminal or by the user's control.

Next, Fig. 31 is a perspective view of a vehicle (5) to which a camera module according to an embodiment is applied. For example, Fig. 31 is an exterior view of a vehicle equipped with a vehicle driving assistance device to which a camera module (10) according to an embodiment is applied.

Referring to Fig. 31, the vehicle (5) of the embodiment may be equipped with wheels (53FL, 53RL) that rotate by a power source and a predetermined sensor. The sensor may be a camera sensor (51), but is not limited thereto.

The above camera (51) may be a camera sensor to which a camera module according to an embodiment, for example, a camera module (10) according to FIGS. 1 to 37, is applied.

The vehicle (5) of the embodiment can obtain image information through a camera sensor (51) that captures a front image or a surrounding image, and can use the image information to determine a lane non-identification situation and create a virtual lane when the lane is not identified.

For example, a camera sensor (51) can capture the front of a vehicle (5) to obtain a front image, and a processor (not shown) can analyze an object included in the front image to obtain image information.

For example, if objects such as a center divider, curb, or street tree, which correspond to a lane, adjacent vehicle, driving obstacle, or indirect road marking, are captured in an image captured by a camera sensor (51), the processor can detect these objects and include them in the image information.

At this time, the processor can obtain distance information from an object detected through a camera sensor (51) to further supplement the image information. The image information may be information about an object captured in the image.

Such a camera sensor (51) may include an image sensor and an image processing module. The camera sensor (51) may process still images or moving images obtained by an image sensor (e.g., CMOS or CCD). The image processing module may process still images or moving images obtained through the image sensor, extract necessary information, and transmit the extracted information to the processor.

At this time, the camera sensor (51) may include a stereo camera to improve the measurement accuracy of the object and to secure more information such as the distance between the vehicle (5) and the object, but is not limited thereto.

The features, structures, effects, etc. described in the embodiments above are included in at least one embodiment of the present invention, and are not necessarily limited to just one embodiment. Furthermore, the features, structures, effects, etc. exemplified in each embodiment can be combined or modified in other embodiments by those skilled in the art to which the embodiments pertain. Therefore, the contents related to such combinations and modifications should be construed as falling within the scope of the present invention.

In addition, although the above description focuses on examples, these are merely examples and do not limit the present invention. Those skilled in the art to which the present invention pertains will appreciate that various modifications and applications not exemplified above are possible without departing from the essential characteristics of the present invention. For example, each component specifically shown in the examples can be modified and implemented. In addition, differences related to such modifications and applications should be interpreted as being included within the scope of the present invention defined in the appended claims.

Claims (17)

housing;
A prism unit disposed within the housing;
A pressurizing member disposed between the housing and the prism unit;
A driving unit including a coil unit and a magnet unit, and tilting the prism unit;
a substrate connected to the above driving unit; and
A moving plate disposed between the prism unit and the housing, and pressed against the housing together with the prism unit by the pressurizing portion;
The above pressurized part,
A first pulling member disposed in the above prism unit; and
A second pulling member is disposed on the substrate facing the first pulling member and is electrically connected to the substrate,
The substrate includes a substrate area where the second pulling member is placed,
A camera actuator having a housing including a mounting groove formed in an area corresponding to the substrate area. In the first paragraph,
The above first pulling member includes a magnet,
The second pulling member is a camera actuator including a first electronic component arranged on the substrate. In the second paragraph,
The above first electronic component is a camera actuator including a capacitor having magnetism. In the first paragraph,
The above substrate is placed on the outside of the housing,
The housing includes a housing hole formed in an area corresponding to the second pulling member,
A camera actuator wherein at least a portion of the second pulling member is disposed within the housing hole. delete delete In paragraph 4,
The above prism unit,
A prism mover having a receiving portion; and
Including a prism arranged within the receiving portion of the above prism mover,
The above moving plate is a camera actuator disposed between the facing surfaces of the prism mover and the housing. In paragraph 7,
The above moving plate includes a hole formed in an area corresponding to the first pulling member and the second pulling member,
A camera actuator in which the first pulling member and the second pulling member are positioned directly facing each other with the hole therebetween. In paragraph 8,
The above moving plate,
It comprises a plurality of first moving protrusions arranged on a first surface facing the prism mover,
Including a second moving protrusion disposed on a second surface facing the housing,
The center of the hole of the above moving plate is,
A camera actuator included in an area connecting the centers of the first and second moving protrusions. In paragraph 9,
A camera actuator in which a virtual first straight line connecting the plurality of first moving protrusions to each other is orthogonal to a virtual second straight line connecting the plurality of second moving protrusions to each other. In Article 10,
A camera actuator in which the center of the hole of the above moving plate is located at the point where the above virtual first straight line and the above virtual second straight line intersect. In paragraph 7,
The housing includes a plurality of first recesses corresponding to a plurality of second moving protrusions of the moving plate,
A camera actuator in which the center of the hole of the above housing is located on an imaginary straight line connecting the centers of the plurality of first recesses. In Article 7
The prism mover includes a second recess corresponding to the first pulling member and a plurality of third recesses corresponding to the plurality of first moving protrusions of the moving plate,
A camera actuator in which the center of the second recess is located on an imaginary straight line connecting the centers of the plurality of third recesses. In the first paragraph,
The substrate includes a first sub-region facing the side of the housing, and a second sub-region other than the first sub-region,
The above driving unit is a camera actuator including a second electronic component arranged in the second sub-area. In Article 14
The second electronic component is a camera actuator including a capacitor. a first camera actuator; and
including a second camera actuator,
The above first camera actuator performs an OIS (Optical Image Stabilizer) function,
The above second camera actuator performs an auto focusing or zoom function,
A camera module comprising a camera actuator according to any one of claims 1 to 4 and claims 7 to 13, wherein the first camera actuator is a camera actuator. In Article 16,
Light incident on the first camera actuator from the outside,
A camera module in which the path of light is changed by the first camera actuator and is incident on the second camera actuator.