KR20210155190A - Lens driving device, camera module, and optical apparatus - Google Patents

Abstract

This embodiment includes a fixing member; a housing disposed on the fixing member; a bobbin disposed within the housing; an elastic member connecting the bobbin and the housing; and a support member disposed between the elastic member and the fixing member, wherein the support member includes a wire and a member disposed around the wire, wherein the member has a length of the bobbin based on an optical axis direction has a length greater than 1/2 of, the wire protrudes from one end of the member to be coupled to the elastic member, and protrudes from the other end of the member to be coupled to the fixing member.

Description

LENS DRIVING DEVICE, CAMERA MODULE, AND OPTICAL APPARATUS

This embodiment relates to a lens driving device, a camera module, and an optical device.

As the spread of various portable terminals is widespread and wireless Internet services are commercialized, the needs of consumers related to portable terminals are also diversifying, and various types of additional devices are being installed in the portable terminals.

Among them, there is a camera module that takes a picture or video of a subject as a representative one. Meanwhile, an optical image stabilization (OIS) function for correcting a user's hand shake during shooting has been applied to a recent camera module. In addition, the size of the image sensor and the aperture of the lens are increasing according to the enhancement of the function of the portable terminal and the increase in the number of pixels.

However, as the aperture of the lens is increased, when vibration and shock are generated in the camera module, the stress applied to the support member supporting the OIS drive increases, causing deformation and disconnection of the support member, resulting in OIS drive inability and poor oscillation. there is a problem.

An object of the present embodiment is to provide a lens driving device including a structure that minimizes stress applied to a support member supporting OIS driving.

A lens driving device according to the present embodiment includes a fixing member; a housing disposed on the fixing member; a bobbin disposed within the housing; an elastic member connecting the bobbin and the housing; and a support member disposed between the elastic member and the fixing member, wherein the support member includes a wire and a member disposed around the wire, and based on the optical axis direction, the member has a length of the bobbin Having a length greater than 1/2, the wire protrudes from one end of the member to be coupled to the elastic member, and protrudes from the other end of the member to be coupled to the fixing member.

A lens driving device according to the present embodiment includes a fixing member; a housing disposed on the fixing member; a bobbin disposed within the housing; an elastic member connecting the bobbin and the housing; and a support member disposed between the elastic member and the fixing member, wherein the support member includes a wire and a member including a columnar shape disposed around the wire, the wire protruding from one end of the member is coupled to the elastic member, and protrudes from the other end of the member to be coupled to the fixing member.

The elastic member may include an upper elastic member and a lower elastic member disposed under the upper elastic member, and the length of the member may be greater than or equal to a distance between the upper elastic member and the lower elastic member.

The member may include a body portion and a concave portion.

The pillar shape may be a circular or polygonal pillar shape.

A lens driving device according to the present embodiment includes a housing; a bobbin disposed within the housing; an elastic member connecting the bobbin and the housing; and a support member coupled to the elastic member and supporting the housing, wherein the support member may include a wire and a member surrounding 50% or more of the wire.

The member may include a body portion and a concave portion having a diameter smaller than that of the body portion in a region adjacent to the elastic member.

a base spaced apart from the housing, wherein the elastic member includes an upper elastic member and a lower elastic member, wherein the concave portion includes a first concave portion adjacent to the upper elastic member and a second concave portion adjacent to the lower elastic member part, wherein the second concave part may be disposed between an imaginary extension surface extending from an upper surface of the lower elastic member and a lower surface of the substrate.

The first concave portion may be located at the end of the body portion within 4.8% of the total length of the body portion.

A portion of the wire of the support member may protrude from an end of the body portion.

The wire of the support member may protrude from the end of the body portion within 3% of the total length of the support member.

The substrate includes a first substrate and a second substrate disposed on the first substrate, one end of the body portion is disposed at the same height as the upper elastic member, and the other end of the body portion is the first substrate can be placed in the hall of

The member may have a length within 50 to 99% of the wire.

The body part may include a fixing part and an extension part.

The concave part may be positioned between the fixing part and the extension part.

The fixing part includes a first fixing part and a second fixing part, the first concave part is located between the first fixing part and the extension part, and the second recessed part is between the second fixing part and the extended part. can be located

The length of the concave portion may be 3 to 40% of the length of the member.

The member may be formed of a material different from that of the wire.

The lens driving device may include a first substrate disposed on the base; a first coil disposed on the bobbin; a magnet disposed in the housing and facing the first coil; and a second coil facing the magnet.

A lens driving device according to the present embodiment includes a housing; a bobbin disposed within the housing; a base spaced apart from the housing; a first coil disposed on the bobbin; a magnet disposed in the housing and facing the first coil; a first substrate disposed on the base and including a second coil facing the magnet; a first elastic member connecting the bobbin and the housing; and a support member connecting the first elastic member and the first substrate, wherein the support member may include a wire and a buffer part formed of a material different from the wire and surrounding at least a portion of the wire.

The wire may be formed of a conductive material, and the buffer unit may be formed of a non-conductive material.

The wire may be formed of a metal, and the buffer unit may be formed of an elastomer.

The buffer unit includes a first fixing part connected to the first elastic member, a second fixing part connected to the first substrate, and an extension part disposed between the first fixing part and the second fixing part; and a first deformable part connecting the first fixing part and the extended part, wherein a diameter of the first deforming part in a direction perpendicular to the optical axis may be smaller than a diameter of the first fixing part in a direction perpendicular to the optical axis. .

The buffer part includes a second deformable part connecting the second fixing part and the extended part, and the diameter of the second deforming part in a direction perpendicular to the optical axis is in a direction perpendicular to the optical axis of the second fixing part. may be smaller than the diameter.

The diameter of the first fixing part, the diameter of the second fixing part, and the diameter of the extension part in a direction perpendicular to the optical axis are equal to each other, and the diameter of the first deforming part and the diameter of the second deforming part are can be identical to each other.

The first elastic member includes an inner portion coupled to the bobbin, an outer portion coupled to the housing, a connecting portion connecting the inner portion and the outer portion, and an extension portion extending from the outer portion and coupled to the support member, the The extension portion of the first elastic member includes a hole, the first fixing portion of the support member is disposed in the hole of the extension portion, and the diameter of the hole in the extension portion in a direction perpendicular to the optical axis of the support member It may be the same as the diameter of the first fixing part.

The first substrate includes a hole, the second fixing part of the support member is disposed in the hole of the first substrate, and the diameter of the hole of the first substrate in a direction perpendicular to the optical axis is the support member may be the same as the diameter of the second fixing part of

The diameter of the first deformable part may be 20% to 80% of the diameter of the first fixing part.

The buffer part may include a groove recessed in the outer circumferential surface of the buffer part, and the groove of the buffer part may be spaced apart from the upper end and the lower end of the buffer part.

The groove of the buffer part includes a first groove adjacent to the upper end of the buffer part and a second groove adjacent to the lower end of the buffer part, and the optical axis direction length of each of the first groove and the second groove of the buffer part is It may be 3% to 40% of the length of the buffer part in the optical axis direction.

The optical axis direction length of the second groove of the buffer part may be longer than the optical axis direction length of the first groove.

The buffer unit may have a circular cross-section in a direction perpendicular to the optical axis.

The wire may include a first portion protruding from the upper end of the buffer unit, and a second portion protruding from the lower end of the buffer unit.

The first portion of the wire may be coupled to an upper surface of the first elastic member by a conductive member, and the second portion of the wire may be coupled to a lower surface of the first substrate by a conductive member.

The wire of the support member may include a plurality of wires, and the plurality of wires may be disposed in the buffer unit in a twisted form.

The buffer part includes a plurality of grooves recessed in the outer peripheral surface of the buffer part, the plurality of grooves of the buffer part include three grooves spaced apart in an optical axis direction, and at least one of the three grooves is a curved surface having a curvature And, it may include any one or more of the outer peripheral surface and the inclined surface of the buffer unit.

The lens driving device may include a second substrate disposed on the housing; a driver IC disposed on the second substrate; and a second elastic member connecting the bobbin and the housing and disposed under the first elastic member, wherein the driver IC is electrically connected to the first substrate through the wire of the support member, the The first coil may be electrically connected to the driver IC through the second elastic member.

The camera module according to this embodiment includes a printed circuit board; an image sensor disposed on the printed circuit board; the lens driving device disposed on the printed circuit board; and a lens coupled to the bobbin of the lens driving device.

The optical device according to the present embodiment includes a main body; the camera module disposed on the body; and a display disposed on the main body and outputting an image photographed by the camera module.

Through this embodiment, deformation and disconnection of the support member supporting the OIS driving can be prevented.

1 is a perspective view of a lens driving device according to the present embodiment.
FIG. 2 is a cross-sectional view taken along line AA of FIG. 1 .
FIG. 3 is a cross-sectional view taken along line BB of FIG. 1 .
FIG. 4 is a cross-sectional view taken along CC of FIG. 1 .
5 is an exploded perspective view of the lens driving device according to the present embodiment.
6 is an exploded perspective view of a first mover and related components of the lens driving apparatus according to the present embodiment.
7 is an exploded perspective view of a second mover and related components of the lens driving device according to the present embodiment.
8 is an exploded perspective view of a stator of the lens driving device according to the present embodiment.
9 is an exploded perspective view of an elastic member and a support member of the lens driving device according to the present embodiment.
10 is a perspective view of a state in which the cover member is removed in FIG. 1 .
11A is a perspective view illustrating a state in which some components are omitted from FIG. 10 .
11B to 11D are views for explaining a shape and a coupling structure of a support member of the lens driving apparatus according to the present embodiment.
Fig. 12 is a bottom perspective view of a part of the lens driving apparatus of the present embodiment.
13A is a perspective view of a support member of the lens driving device according to the present embodiment.
13B is a view of a support member of a lens driving device according to a modified example.
14 is an enlarged perspective view of a part of the lens driving device according to the present embodiment.
Fig. 15 is a plan view of a part of the lens driving apparatus of the present embodiment.
16A is a cross-sectional view of a supporting member of the lens driving device according to the present embodiment, and FIGS. 16A to 16A are cross-sectional views of a supporting member of the lens driving device according to a modified example.
16B (a) and (b) are cross-sectional views of a support member of a lens driving device according to a modified example.
17A and 17B are cross-sectional views of a support member of a lens driving device according to a modified example.
18 is an exploded perspective view of the camera device according to the present embodiment.
19 is a perspective view showing an optical device according to the present embodiment.
20 is a block diagram of an optical device according to the present embodiment.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, the technical spirit of the present invention is not limited to some embodiments described, but may be implemented in various different forms, and within the scope of the technical spirit of the present invention, one or more of the components may be selected between the embodiments. It can be used by combining or substituted with

In addition, terms (including technical and scientific terms) used in the embodiments of the present invention may be generally understood by those of ordinary skill in the art to which the present invention belongs, unless specifically defined and described explicitly. It may be interpreted as a meaning, and generally used terms such as terms defined in advance may be interpreted in consideration of the contextual meaning of the related art.

In addition, the terminology used in the embodiments of the present invention is for describing the embodiments and is not intended to limit the present invention.

In the present specification, the singular form may also include the plural form unless otherwise specified in the phrase, and when it is described as "at least one (or more than one) of A and (and) B, C", it is combined as A, B, C It may include one or more of all possible combinations.

In addition, in describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only used to distinguish the component from other components, and are not limited to the essence, order, or order of the component by the term.

And, when it is described that a component is 'connected', 'coupled', or 'connected' to another component, the component is directly 'connected', 'coupled', or 'connected' to the other component. In addition to the case, it may include a case of 'connected', 'coupled', or 'connected' due to another element between the element and the other element.

In addition, when it is described as being formed or disposed on "above (above)" or "below (below)" of each component, "above (above)" or "below (below)" means that two components are directly connected to each other. It includes not only the case where they are in contact, but also the case where one or more other components are formed or disposed between two components. In addition, when expressed as "upper (upper)" or "lower (lower)", the meaning of not only an upper direction but also a lower direction based on one component may be included.

An 'optical axis direction' used below is defined as an optical axis direction of a lens and/or an image sensor coupled to a lens driving device.

The 'vertical direction' used below may be a direction parallel to the optical axis direction. The vertical direction may correspond to the 'z-axis direction'. The 'horizontal direction' used below may be a direction perpendicular to the vertical direction. That is, the horizontal direction may be a direction perpendicular to the optical axis. Accordingly, the horizontal direction may include an 'x-axis direction' and a 'y-axis direction'.

The 'auto focus (AF, auto focus) function' used below is to adjust the distance from the image sensor by moving the lens in the optical axis direction according to the distance of the subject so that a clear image of the subject can be obtained on the image sensor. It is defined as a function that automatically focuses on In addition, 'CLAF (closed-loop auto focus) control' is a real-time feedback control system that detects the distance between the image sensor and the lens to improve focus adjustment accuracy. defined as

The 'optical image stabilization (OIS) function' used hereinafter is defined as a function of moving or tilting the lens in a direction perpendicular to the optical axis to cancel the vibration (movement) generated in the image sensor by an external force.

Hereinafter, the configuration of the lens driving device according to the present embodiment will be described with reference to the drawings.

1 is a perspective view of a lens driving device according to the present embodiment, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1 , FIG. 3 is a cross-sectional view taken along line BB of FIG. 1 , and FIG. 4 is a cross-sectional view taken along CC of FIG. , FIG. 5 is an exploded perspective view of the lens driving device according to the present embodiment, FIG. 6 is an exploded perspective view of a first mover and related configuration of the lens driving device according to the present embodiment, and FIG. 7 is a lens according to the present embodiment An exploded perspective view of a second mover and related components of the driving device, FIG. 8 is an exploded perspective view of a stator of the lens driving device according to the present embodiment, and FIG. 9 is an elastic member and a supporting member of the lens driving device according to the present embodiment is an exploded perspective view of a, FIG. 10 is a perspective view of a state in which the cover member is removed in FIG. 1 , FIG. 11A is a perspective view of a state in which some components are omitted from FIG. 10, and FIGS. 11B to 11D are a lens driving device according to the present embodiment It is a view for explaining the shape and coupling structure of the support member of , FIG. 12 is a bottom perspective view of a part of the lens driving device of this embodiment, and FIG. 13A is a perspective view of the supporting member of the lens driving device according to the present embodiment, FIG. 13B is a view of a support member of the lens driving device according to the modified example, FIG. 14 is an enlarged perspective view of a part of the lens driving device according to the present embodiment, and FIG. 15 is a plan view of a part of the lens driving device according to the present embodiment .

The lens driving device 10 may be a voice coil motor (VCM). The lens driving device 10 may be a lens driving motor. The lens driving device 10 may be a lens driving actuator. The lens driving device 10 may include an AF module. The lens driving device 10 may include an OIS module.

The lens driving device 10 may include a cover member 100 . The cover member 100 may include a 'cover can'. The cover member 100 may be disposed outside the housing 310 . The cover member 100 may be coupled to the base 410 . The cover member 100 may accommodate the housing 310 therein. The cover member 100 may form the exterior of the lens driving device 10 . The cover member 100 may have a hexahedral shape with an open lower surface. The cover member 100 may be a non-magnetic material. The cover member 100 may be formed of a metal material. The cover member 100 may be formed of a metal plate. The cover member 100 may be connected to the ground portion of the printed circuit board 50 . Through this, the cover member 100 may be grounded. The cover member 100 may block electromagnetic interference (EMI). In this case, the cover member 100 may be referred to as an 'EMI shield can'.

The cover member 100 may include an upper plate 110 and a side plate 120 . The cover member 100 may include a top plate 110 including a hole, and a side plate 120 extending downward from an outer periphery or edge of the top plate 110 . The lower end of the side plate 120 of the cover member 100 may be disposed on the step portion 412 of the base 410 . The inner surface of the side plate 120 of the cover member 100 may be fixed to the base 410 by an adhesive.

The upper plate 110 of the cover member 100 may include a hole. A hole may include an 'opening'. The hole may be formed in the upper plate 110 of the cover member 100 . When viewed from above, the lens can be seen through the hole. The hole may be formed in a size and shape corresponding to the lens. The size of the hole may be larger than the diameter of the lens module 20 so that the lens module 20 can be inserted through the hole and assembled. The light introduced through the hole may pass through the lens. In this case, the light passing through the lens may be converted into an electrical signal by the image sensor 60 and acquired as an image.

The lens driving device 10 may include a first mover 200 . The first mover 200 may be coupled to a lens. The first mover 200 may be connected to the second mover 300 through the first elastic member 510 and/or the second elastic member 520 . The first mover 200 may move through interaction with the second mover 300 . In this case, the first mover 200 may move integrally with the lens. Meanwhile, the first mover 200 may move during AF driving. In this case, the first mover 200 may be referred to as an 'AF mover'. However, the first mover 200 may move together with the second mover 300 even when the OIS is driven.

The first mover 200 may include a bobbin 210 . The bobbin 210 may be disposed in the housing 310 . The bobbin 210 may be disposed in the hole 311 of the housing 310 . The bobbin 210 may be movably coupled to the housing 310 . The bobbin 210 may move in the optical axis direction with respect to the housing 310 . A lens may be coupled to the bobbin 210 . The bobbin 210 and the lens may be coupled by screws and/or adhesives. The first coil 220 may be coupled to the bobbin 210 . A first elastic member 510 may be coupled to the upper or upper surface of the bobbin 210 . A second elastic member 520 may be coupled to a lower or lower surface of the bobbin 210 . The bobbin 210 may be coupled to the first elastic member 510 and/or the second elastic member 520 by thermal bonding and/or adhesive. The adhesive bonding the bobbin 210 and the lens, and the bobbin 210 and the elastic member 500 may be an epoxy that is cured by at least one of ultraviolet rays (UV), heat, and a laser.

In this embodiment, the bobbin 210 may not be disposed between the second magnet 650 and the first sensor 670 . That is, in the present embodiment, the distance between the second magnet 650 and the first sensor 670 may be minimized. By minimizing the distance between the second magnet 650 and the first sensor 670 , the strength of the magnetic force of the second magnet 650 sensed by the first sensor 670 may be increased.

The bobbin 210 may include an upper surface 211 . An inner portion 511 of the first elastic member 510 may be disposed on the upper surface 211 of the bobbin 210 . The upper surface 211 of the bobbin 210 may be disposed at a higher position than the upper surface of the second magnet 650 . The upper surface 211 of the bobbin 210 may be spaced apart from the upper surface of the second magnet 650 . Alternatively, the upper surface 211 of the bobbin 210 may be disposed at the same height as the upper surface of the second magnet 650 .

The bobbin 210 may include a groove 212 . The groove 212 may be a recess. A second magnet 650 may be disposed in the groove 212 . The groove 212 of the bobbin 210 may be formed in the upper surface 211 of the bobbin 210 . The groove 212 of the bobbin 210 may be formed on the outer peripheral surface of the bobbin 210 . At least a portion of the groove 212 of the bobbin 210 may be formed to correspond to the shape and size of the second magnet 650 .

The bobbin 210 may include a depression 213 . The recessed portion 213 may be formed in a portion corresponding to the connecting portion 513 of the first elastic member 510 . The recessed part 213 may be recessed from the upper surface 211 of the bobbin 210 . Through this, when the bobbin 210 moves upward from the initial state, interference between the connecting portion 513 of the first elastic member 510 and the bobbin 210 may be prevented. The depression 213 may be spaced apart from the groove 212 of the bobbin 210 .

The bobbin 210 may include a hole 214 . The hole 214 may pass through the bobbin 210 in the optical axis direction. The lens module 20 may be accommodated in the hole 214 . For example, a thread corresponding to a thread formed on the outer peripheral surface of the lens module 20 may be disposed on the inner peripheral surface of the hole 214 of the bobbin 210 .

The bobbin 210 may include a protrusion 215 . The protrusion 215 may include a protrusion. The protrusion 215 may be formed on the upper surface 211 of the bobbin 210 . The protrusion 215 may protrude from the upper surface 211 of the bobbin 210 . The protrusion 215 may be coupled to the inner portion 511 of the first elastic member 510 . The protrusion 215 may be inserted into the hole of the inner portion 511 of the first elastic member 510 . The protrusion 215 may be coupled to the hole of the inner portion 511 .

The bobbin 210 may include a coil receiving groove 216 . The first coil 220 may be coupled to the coil receiving groove 216 . The coil receiving groove 216 may be formed on the outer peripheral surface of the bobbin 210 . The coil receiving groove 216 may include a groove formed by recessing a portion of an outer lateral surface of the bobbin 210 . The first coil 220 may be accommodated in the groove of the coil receiving groove 216 . The coil receiving groove 216 may include a protrusion for supporting the lower surface of the first coil 220 .

The bobbin 210 may include an upper stopper 217 . The upper stopper 217 may be formed on the upper surface 211 of the bobbin 210 . The upper stopper 217 may protrude from the upper surface 211 of the bobbin 210 . The upper stopper 217 may overlap the upper plate 110 of the cover member 100 in the optical axis direction. The upper stopper 217 may form an uppermost end of the bobbin 210 . Through this, when the bobbin 210 moves upward, the upper stopper 217 may contact the upper plate 110 of the cover member 100 . That is, the upper stopper 217 may physically limit the upper stroke of the bobbin 210 .

The bobbin 210 may include a side stopper 218 . The side stopper 218 may be formed on a side surface of the bobbin 210 . The side stopper 218 may be formed to protrude from the side surface of the bobbin 210 . At least a portion of the side stopper 218 may be disposed in the second groove 313 of the housing 310 . When the bobbin 210 rotates through this structure, the side stopper 218 of the bobbin 210 may contact the housing 310 . That is, the side stopper 218 of the bobbin 210 may limit the rotation of the bobbin 210 .

The bobbin 210 may include a jig groove. The jig groove may be formed on the upper surface of the bobbin 210 . A jig for preventing rotation of the bobbin 210 in the process of screwing the lens module 20 to the bobbin 210 may be coupled to the jig groove.

The first mover 200 may include a first coil 220 . The first coil 220 may be an 'AF driving coil' used for AF driving. The first coil 220 may be disposed on the bobbin 210 . The first coil 220 may be disposed between the bobbin 210 and the housing 310 . The first coil 220 may be disposed on an outer lateral surface or an outer peripheral surface of the bobbin 210 . The first coil 220 may be directly wound on the bobbin 210 . Alternatively, the first coil 220 may be coupled to the bobbin 210 in a straight wound state. The first coil 220 may face the first magnet 320 . The first coil 220 may be disposed to face the first magnet 320 . The first coil 220 may electromagnetically interact with the first magnet 320 . In this case, when electric current is supplied to the first coil 220 and an electromagnetic field is formed around the first coil 220 , the first coil 220 and the first magnet 320 may interact with each other by electromagnetic interaction. The coil 220 may move with respect to the first magnet 320 . The first coil 220 may be formed as a single coil. Alternatively, the first coil 220 may include a plurality of coils spaced apart from each other.

The first coil 220 may include a pair of lead wires for supplying power. At this time, one end (leading line) of the first coil 220 is coupled to the first lower elastic unit 520-1, and the other end (leading line) of the first coil 220 is the second lower elastic unit 520 . -2) can be combined. That is, the first coil 220 may be electrically connected to the second elastic member 520 . In more detail, the first coil 220 sequentially includes the printed circuit board 50 , the first substrate 420 , the wire 610 , the first elastic member 510 , the second substrate 330 , and the second elastic member. Power may be supplied through 520 . As a modification, the first coil 220 may be electrically connected to the first elastic member 510 .

The lens driving device 10 may include a second mover 300 . The second mover 300 may be movably coupled to the stator 400 through the support member 600 . The second mover 300 may support the first mover 200 through the upper part and the second elastic members 510 and 520 . The second mover 300 may move the first mover 200 or move together with the first mover 200 . The second mover 300 may move through interaction with the stator 400 . The second mover 300 may move when the OIS is driven. In this case, the second mover 300 may be referred to as an 'OIS mover'. The second mover 300 may move integrally with the first mover 200 when the OIS is driven.

The second mover 300 may include a housing 310 . The housing 310 may be spaced apart from the base 410 . The housing 310 may be disposed outside the bobbin 210 . The housing 310 may accommodate at least a portion of the bobbin 210 . The housing 310 may be disposed in the cover member 100 . The housing 310 may be disposed between the cover member 100 and the bobbin 210 . The housing 310 may be formed of a material different from that of the cover member 100 . The housing 310 may be formed of an insulating material. The housing 310 may be formed of an injection-molded material. The outer side of the housing 310 may be spaced apart from the inner surface of the side plate 120 of the cover member 100 . Through the space between the housing 310 and the cover member 100, the housing 310 may move for OIS operation. A first magnet 320 may be disposed in the housing 310 . The housing 310 and the first magnet 320 may be coupled by an adhesive. The first elastic member 510 may be coupled to the upper or upper surface of the housing 310 . A second elastic member 520 may be coupled to a lower or lower surface of the housing 310 . The housing 310 may be coupled to the upper and second elastic members 510 and 520 by heat sealing and/or adhesive. The housing 310 and the first magnet 320, and the adhesive bonding the housing 310 and the elastic member 500 may be an epoxy cured by any one or more of ultraviolet rays (UV), heat, and a laser. have.

The housing 310 may include four sides and four corners disposed between the four sides. The side of the housing 310 may include a first side, a second side disposed opposite the first side, and third and fourth sides disposed opposite to each other between the first side and the second side. have. A corner portion of the housing 310 includes a first corner portion disposed between the first side portion and the third side portion, a second corner portion disposed between the first side portion and the fourth side portion, and between the second side portion and the third side portion. It may include a third corner portion disposed and a fourth corner portion disposed between the second side portion and the fourth side portion. The side of the housing 310 may include a 'lateral wall'.

The housing 310 may include a hole 311 . The hole 311 may be formed in the housing 310 . The hole 311 may be formed to pass through the housing 310 in the optical axis direction. A bobbin 210 may be disposed in the hole 311 . The hole 311 may be formed in a shape corresponding to the bobbin 210 at least in part. An inner peripheral surface or an inner lateral surface of the housing 310 forming the hole 311 may be spaced apart from the outer peripheral surface of the bobbin 210 . However, the housing 310 and the bobbin 210 may overlap at least in part in the optical axis direction to limit the movement stroke distance of the bobbin 210 in the optical axis direction.

The housing 310 may include a first groove 312 . The first groove 312 may be recessed in the upper surface of the housing 310 . The first groove 312 may be formed at a position corresponding to the connection part 513 of the first elastic member 510 . The first groove 312 may prevent interference between the first elastic member 510 and the housing 310 when the connecting portion 513 of the first elastic member 510 moves downward from the initial position.

The housing 310 may include a second groove 313 . The second groove 313 may accommodate at least a portion of the side stopper 218 of the bobbin 210 . The second groove 313 may be formed to have a predetermined gap between it and the side stopper 218 .

The housing 310 may include a magnet receiving groove 314 . The first magnet 320 may be coupled to the magnet receiving groove 314 . The magnet accommodating groove 314 may include a groove formed by recessing a portion of an inner peripheral surface and/or a lower surface of the housing 310 . The magnet receiving groove 314 may be formed in each of the four corners of the housing 310 . As a modification, the magnet receiving groove 314 may be formed in each of the four sides of the housing 310 .

The housing 310 may include a hole 315 . The hole 315 may be formed in a corner portion of the housing 310 . The hole 315 may be formed to pass through the housing 310 in the optical axis direction. The support member 600 may be disposed in the hole 315 of the housing 310 . The support member 600 may pass through the hole 315 of the housing 310 .

The housing 310 may include a protrusion 316 . The protrusion 316 may be formed on the upper surface of the housing 310 . The protrusion 316 may protrude from the upper surface of the housing 310 . The protrusion 316 may be coupled to the outer portion 512 of the first elastic member 510 . The protrusion 316 may be inserted into the hole of the outer portion 512 of the first elastic member 510 .

The housing 310 may include an upper stopper 317 . The upper stopper 317 may protrude from the upper surface of the housing 310 . The upper stopper 317 may be formed on the upper surface of the housing 310 . The upper stopper 317 may overlap the upper plate 110 of the cover member 100 in the optical axis direction. The upper stopper 317 may form an uppermost end of the housing 310 . Through this, when the housing 310 moves upward, the upper stopper 317 may contact the upper plate 110 of the cover member 100 . That is, the upper stopper 317 may limit the upward movement of the housing 310 .

The housing 310 may include a side stopper 318 . The side stopper 318 may protrude from the outer surface of the housing 310 . The side stopper 318 may face the inner surface of the side plate 120 of the cover member 100 . The side stopper 318 may contact the side plate 120 of the cover member 100 when the housing 310 moves laterally. That is, the side stopper 318 may physically limit the stroke to the side of the housing 310 .

The second mover 300 may include a first magnet 320 . The first magnet 320 may be disposed in the housing 310 . The first magnet 320 may be fixed to the housing 310 by an adhesive. The first magnet 320 may be disposed between the bobbin 210 and the housing 310 . The first magnet 320 may face the first coil 220 . The first magnet 320 may electromagnetically interact with the first coil 220 . The first magnet 320 may face the second coil 430 . The first magnet 320 may electromagnetically interact with the second coil 430 . The first magnet 320 may move the bobbin 210 in the optical axis direction through interaction with the first coil 220 . The first magnet 320 may move the bobbin 2100 in a direction perpendicular to the optical axis through interaction with the second coil 430. The first magnet 320 may be commonly used for AF driving and OIS driving. The first magnet 320 may be disposed at the corner of the housing 310. In this case, the first magnet 320 may be a corner magnet having a hexahedral shape with an inner side wider than an outer side. For example, the first magnet 320 may be disposed on the side of the housing 310. In this case, the first magnet 320 may be a flat magnet having a flat plate shape.

The first magnet 320 may include a plurality of magnets. The first magnet 320 may include four magnets. The first magnet 320 may include first to fourth driving magnets disposed at first to fourth corners.

The lens driving device 10 may include a second substrate 330 . The second substrate 330 may be disposed on the housing 310 . The second substrate 330 may be disposed on one side wall of the housing 310 . The second substrate 330 may be coupled to the first sensor 670 . The second substrate 330 may be electrically connected to the first sensor 670 . The second substrate 330 may be coupled to the first elastic member 510 . The second substrate 330 may not overlap an imaginary line connecting the first corner portion of the housing 310 and the optical axis.

The second substrate 330 may include terminals. The second substrate 330 may include a plurality of terminals. The second substrate 330 may include an upper terminal 331 . The second substrate 330 may include four terminals disposed on the second substrate 330 . That is, the upper terminal 331 may include four terminals. The four terminals of the second substrate 330 may be electrically connected to the first substrate 420 through four upper elastic units and four wires 610 . The terminal of the second substrate 330 may include a first terminal, a second terminal, and a third terminal and a fourth terminal disposed between the first terminal and the second terminal. In this case, the housing 310 may include a first corner portion and a second corner portion adjacent to the first corner portion, the first terminal may be adjacent to the first corner portion, and the second terminal may be adjacent to the second corner portion. The first terminal may be connected to the first wire through the first upper elastic unit 510-1. The second terminal may be connected to the fourth wire through the fourth upper elastic unit 510-4. The first terminal and the second terminal of the second substrate 330 may be terminals for providing a power signal to the first sensor 670 .

The third terminal may be connected to the second wire through the second upper elastic unit 510 - 2 . The fourth terminal may be connected to the third wire through the third upper elastic unit 510-3. In this case, the second wire may be disposed on the third corner portion of the housing 310 , and the third wire may be disposed on the fourth corner portion of the housing 310 . The third terminal may be a terminal for providing a clock signal to the first sensor 670 . The fourth terminal may be a terminal for providing a data signal to the first sensor 670 .

The second substrate 330 may include a lower terminal 332 . The second substrate 330 may include two terminals disposed under the second substrate 330 . That is, the lower terminal 332 may include two terminals. The two terminals of the second substrate 330 may be electrically connected to the first coil 220 through the two lower elastic units.

The lens driving device 10 may include a stator 400 . The stator 400 may be disposed below the first and second movers 200 and 300 . The stator 400 may movably support the second mover 300 . The stator 400 may move the second mover 300 . At this time, the first mover 200 may also move together with the second mover 300 .

The stator 400 may include a base 410 . The base 410 may be disposed under the housing 310 . The base 410 may be disposed under the first substrate 420 . A first substrate 420 may be disposed on the upper surface of the base 410 . The base 410 may be coupled to the cover member 100 . The base 410 may be disposed on the printed circuit board 50 .

The base 410 may include a hole 411 . The hole 411 may be a hollow hole formed in the base 410 . The hole 411 may pass through the base 410 in the optical axis direction. Light passing through the lens module 20 through the hole 411 may be incident on the image sensor 60 .

The base 410 may include a stepped portion 412 . The step portion 412 may be formed on a side surface of the base 410 . The step portion 412 may be formed around the outer peripheral surface of the base 410 . The step portion 412 may be formed by protruding or recessing a portion of the side surface of the base 410 . The lower end of the side plate 120 of the cover member 100 may be disposed on the step portion 412 .

The base 410 may include a groove 413 . A terminal portion 426 of the first substrate 420 may be disposed in the groove 413 . The groove 413 may be formed by recessing a portion of the side surface of the base 410 . The width of the groove 413 may be formed to correspond to the width of the terminal part 426 of the first substrate 420 . The length of the groove 413 may be formed to correspond to the length of the terminal part 426 of the first substrate 420 . Alternatively, since the length of the terminal portion 426 of the first substrate 420 is longer than the length of the groove 413 , a portion of the terminal portion 426 may protrude below the base 410 .

The base 410 may include a sensor receiving groove 414 . The OIS sensor 650 may be disposed in the sensor receiving groove 414 . The sensor receiving groove 414 may accommodate at least a portion of the OIS sensor 650 . The sensor receiving groove 414 may include a groove in which the upper surface of the base 410 is depressed. The sensor receiving groove 414 may include two grooves. In this case, the OIS sensor 650 is disposed in each of the two grooves to detect the movement in the X-axis direction and the movement in the Y-axis direction of the first magnet 320 .

The base 410 may include a groove 415 . The groove 415 may be formed on the upper surface of the base 410 . An adhesive may be disposed in the groove 415 . The adhesive disposed in the groove 415 may fix the first substrate 420 to the base 410 . A conductive adhesive member may be disposed in the groove 415 . The first substrate 420 and the second coil 430 may be electrically connected to each other by a conductive adhesive member disposed in the groove 415 .

The base 410 may include a protrusion 416 . The protrusion 416 may be formed on the upper surface of the base 410 . The protrusion 416 may be formed on the outer peripheral surface of the base 410 . The protrusion 416 may be formed outside the first substrate 420 . The protrusions 416 may be formed on both sides of the first substrate 420 to guide the position of the first substrate 420 .

The stator 400 may include a first substrate 420 . The first substrate 420 may be disposed between the base 410 and the housing 310 . The first substrate 420 may be disposed on the upper surface of the base 410 . The first substrate 420 may include a second coil 430 facing the first magnet 320 . The first substrate 420 may supply power to the second coil 430 . A support member 600 may be coupled to the first substrate 420 . The first substrate 420 may be coupled to the printed circuit board 50 disposed under the base 410 by solder. The first substrate 420 may include a flexible printed circuit board (FPCB). The first substrate 420 may be partially bent.

The first substrate 420 may include a body portion 421 . A hole 422 may be formed in the body portion 421 . The hole 422 may be hollow passing through the first substrate 420 in the optical axis direction. The first substrate 420 may include a hole 423 . A support member 600 may be disposed in the hole 423 of the first substrate 420 . The support member 600 may be disposed to pass through the hole 423 of the first substrate 420 .

The first substrate 420 may include a first terminal 424 . The first terminal 424 may be disposed on the lower surface of the first substrate 420 . The first terminal 424 may be disposed around the hole 423 . The first terminal 424 may be connected to the wire 610 by a conductive member. The first substrate 420 may include a second terminal 425 . The second terminal 425 may be disposed on the lower surface of the first substrate 420 . The second terminal 425 may be disposed on an edge of the first substrate 420 . The second terminal 425 may be connected to the second coil 430 by a conductive member.

The first substrate 420 may include a terminal unit 426 . The terminal part 426 may extend downward from the body part 421 of the first substrate 420 . The terminal part 426 may be formed by bending a portion of the first substrate 420 . At least a part of the terminal part 426 may be exposed to the outside. The terminal part 426 may be coupled to the printed circuit board 50 disposed under the base 410 by soldering. The terminal part 426 may be disposed in the groove 413 of the base 410 . The terminal unit 426 may include a plurality of terminals 427 .

The stator 400 may include a second coil 430 . The second coil 430 may be one configuration of the first substrate 420 , but may be a separate configuration from the first substrate 420 . The second coil 430 may electromagnetically interact with the first magnet 320 . In this case, when a current is supplied to the second coil 430 to form a magnetic field around the second coil 430 , the electromagnetic interaction between the second coil 430 and the first magnet 320 causes the first The magnet 320 may move with respect to the second coil 430 . The second coil 430 may move the housing 310 and the bobbin 210 in a direction perpendicular to the optical axis with respect to the base 410 through electromagnetic interaction with the first magnet 320 . The second coil 430 may be a fine pattern coil (FP coil) integrally formed on the substrate 431 . The second coil 430 may include a substrate part 431 and a coil part 432 formed on the substrate part 431 . As a modification, the second coil 430 may be provided with only the coil part 432 without the substrate part 431 . The second coil 430 may include a substrate. In this case, the substrate may be referred to as a second substrate to distinguish it from the first substrate 420 .

The lens driving device 10 may include an elastic member 500 . The elastic member 500 may have elasticity at least in part. The elastic member 500 may be formed of metal. The elastic member 500 may be formed of a conductive material. The elastic member 500 may be coupled to the bobbin 210 and the housing 310 . The elastic member 500 may elastically support the bobbin 210 . The elastic member 500 may movably support the bobbin 210 . The elastic member 500 may support the movement of the bobbin 210 when the AF is driven. That is, the elastic member 500 may include an 'AF support member'. The elastic member 500 may movably support the housing 310 . That is, the elastic member 500 may include an 'OIS support member'.

The elastic member 500 may include a first elastic member 510 . The first elastic member 510 may be an 'upper elastic member'. The first elastic member 510 may connect the housing 310 and the bobbin 210 . The first elastic member 510 may be coupled to an upper portion of the bobbin 210 and an upper portion of the housing 310 . The first elastic member 510 may be coupled to the upper surface of the bobbin 210 . The first elastic member 510 may be coupled to the upper surface of the housing 310 . The first elastic member 510 may be coupled to the support member 600 . The first elastic member 510 may be formed of a leaf spring. A portion of the first elastic member 510 may be separated and used as an electrical signal, communication, or power line.

The first elastic member 510 may include a plurality of upper elastic units. The first elastic member 510 may include four upper elastic units. The first elastic member 510 may include first to fourth upper elastic units 510-1, 510-2, 510-3, and 510-4. The first to fourth upper elastic units 510-1, 510-2, 510-3, and 510-4 may connect four upper terminals 331 of the second substrate 330 and four wires. Each of the four upper elastic units (510-1, 510-2, 510-3, 510-4) includes a body portion coupled to the housing (310), and a connection terminal connected to the terminal of the second substrate (330). can do.

The first elastic member 510 may include an inner portion 511 . The inner part 511 may be coupled to the bobbin 210 . The inner part 511 may be coupled to the upper surface of the bobbin 210 . The inner portion 511 may include a hole or groove coupled to the protrusion 215 of the bobbin 210 . The inner part 511 may be fixed to the bobbin 210 by an adhesive.

The first elastic member 510 may include an outer portion 512 . The outer part 512 may be coupled to the housing 310 . The outer part 512 may be coupled to the upper surface of the housing 310 . The outer portion 512 may include a hole or groove coupled to the protrusion 316 of the housing 310 . The outer part 512 may be fixed to the housing 310 by an adhesive.

The first elastic member 510 may include a connection part 513 . The connection part 513 may connect the inner part 511 and the outer part 512 . The connection part 513 may have elasticity. In this case, the connection part 513 may be referred to as an 'elastic part'. The connection part 513 may be formed by bending two or more times. The connection part 513 may not overlap the second magnet 650 in the optical axis direction.

The first elastic member 510 may include an extension 514 . The extension 514 may extend from the outer portion 512 . The extension 514 may be coupled to the support member 600 . The extension 514 may include a hole 515 . The extension 514 may include a hole 515 through which the wire 610 of the support member 600 passes. The extension 514 and the wire 610 may be coupled by solder.

The first elastic member 510 may include a terminal part 516 . The terminal part 516 may extend from the outer part 512 . The terminal unit 516 may be coupled to the second substrate 330 by solder. The first elastic member 510 may include four terminal portions 516 corresponding to the first to fourth upper elastic units 510-1, 510-2, 510-3, and 510-4.

The elastic member 500 may include a second elastic member 520 . The second elastic member 520 may be a 'lower elastic member'. The second elastic member 520 may be disposed under the first elastic member 510 . The second elastic member 520 may connect the bobbin 210 and the housing 310 . The second elastic member 520 may be disposed under the bobbin 210 . The second elastic member 520 may be coupled to the bobbin 210 and the housing 310 . The second elastic member 520 may be coupled to the lower surface of the bobbin 210 . The second elastic member 520 may be coupled to the lower surface of the housing 310 . The second elastic member 520 may be formed of a leaf spring.

The second elastic member 520 may include a plurality of lower elastic units. The second elastic member 520 may include two lower elastic units. The second elastic member 520 may include first and second lower elastic units 520-1 and 520-2. The first and second lower elastic units 520-1 and 520-2 may connect the two lower terminals 332 of the second substrate 330 and the first coil 220 to each other.

The second elastic member 520 may include an inner portion 521 . The inner part 521 may be coupled to the bobbin 210 . The inner portion 521 may be coupled to the lower surface of the bobbin 210 . The inner portion 521 may include a hole or groove coupled to the protrusion of the bobbin 210 . The inner portion 521 may be fixed to the bobbin 210 by an adhesive.

The second elastic member 520 may include an outer portion 522 . The outer part 522 may be coupled to the housing 310 . The outer part 522 may be coupled to the lower surface of the housing 310 . The outer portion 522 may include a hole or groove coupled to the protrusion of the housing 310 . The outer part 522 may be fixed to the housing 310 by an adhesive.

The second elastic member 520 may include a connection part 523 . The connection part 523 may connect the inner part 521 and the outer part 522 to each other. The connection part 523 may have elasticity. In this case, the connection part 523 may be referred to as an 'elastic part'. The connection part 523 may be formed by bending two or more times.

The lens driving device 10 may include a support member 600 . The support member 600 may connect the first substrate 420 and the first elastic member 510 . The support member 600 may be coupled to each of the first elastic member 510 and the first substrate 420 by soldering. The support member 600 may movably support the housing 310 . The support member 600 may elastically support the housing 310 . The support member 600 may have elasticity at least in part. The support member 600 may support the movement of the housing 310 and the bobbin 210 when the OIS is driven. The support member 600 may include an elastic member. The support member 600 may have elasticity.

The support member 600 may include a plurality of support members. The support member 600 may include four support members. The support member 600 may include first to fourth support members 601 , 602 , 603 , and 604 . The first support member 601 may be electrically connected to the first upper elastic unit 510-1. The second support member 602 may be electrically connected to the second upper elastic unit 510 - 2 . The third support member 603 may be electrically connected to the third upper elastic unit 510 - 3 . The fourth support member 604 may be electrically connected to the fourth upper elastic unit 510-4.

The support member 600 may include a wire 610 . The wire 610 may include a wire spring. The wire 610 may have elasticity. The wire 610 may be an elastic member. The wire 610 may be formed of a conductive material. The wire 610 may be formed of metal. The wire 610 may electrically connect the first substrate 410 and the first elastic member 510 . The wire 610 may connect the first substrate 410 and the first elastic member 510 .

The outer peripheral surface of the wire 610 may be covered by the buffer 620 . At least a portion of the wire 610 may protrude from the buffer 620 . The upper end and lower end of the wire 610 may protrude from the buffer unit 620 . The wire 610 may include a first portion 611 protruding from the upper end of the buffer unit 620 and a second portion 612 protruding from the lower end of the buffer unit 620 . The first portion 611 of the wire 610 may be coupled to the upper surface of the first elastic member 510 by a conductive member. The second portion 612 of the wire 610 may be coupled to the lower surface of the first substrate 420 by a conductive member.

In this embodiment, the upper part of the wire 610 is connected to the first elastic member 510 which is a suspension spring part, and the lower part is the stator 400 such as the base 410, the first substrate 420 or the second coil 430. can be connected to Stress is concentrated on the lower side of the wire 610 due to drop, impact, or vibration, and deformation and disconnection may occur. Through this, the accumulated fatigue caused by the injection molding can be eliminated. Also, the spring constant in the optical axis direction may increase. Furthermore, the spring strength may be increased to increase the resonant frequency, so that the frequency characteristic may be improved.

As a modification, the wire 610 of the support member 600 may include a plurality of wires. As shown in FIG. 13B , a plurality of wires may be arranged in the buffer unit 620 in a twisted form. That is, a plurality of wires may be disposed in one buffer unit 620 . In addition, a plurality of wires may be disposed on each of the four support members.

The support member 600 may include a buffer 620 . The buffer unit 620 may be formed of a material different from that of the wire 610 . The buffer 620 may wrap at least a portion of the wire 610 . The buffer unit 620 may wrap the wire 610 from the first elastic member 510 to the first substrate 420 . The buffer unit 620 may be formed of a non-conductive material. The buffer unit 620 may be formed of an elastomer. The buffer unit 620 may be formed of an injection-molded material. The buffer unit 620 may have a circular cross-section in a direction perpendicular to the optical axis. As a modification, the buffer unit 620 may have a polygonal cross-section in a direction perpendicular to the optical axis.

In this embodiment, the plastic injection molding may be wrapped around the outside of the OIS wire 610 . In this embodiment, the material of the buffer unit 620 may be formed of a general injection molding or rubber material. A conductive wire 610 (including an elastic material) may be disposed at the center or outside of the buffer unit 620 . A soldering portion may protrude from upper and lower portions of the support member 600 . The soldering part may be the first part 611 and the second part 612 of the wire 610 . The upper portion may be electrically connected to the first elastic member 510 and the lower portion may be electrically connected to the first substrate 420 to the second coil 430 . In the electrical connection, communication and power signals are connected through a wire 610, which is again connected to a driver IC (Driver IC) or a Hall element (Hall element) through the first elastic member 510 and the second substrate 330. can

In this embodiment, it may have a damper effect due to the material of the injection-molded material. However, when an additional damper effect is required, a first space (refer to A of FIG. 14 ) for applying the additional damper is secured. The damper disposed in the first space may connect the connecting portion 513 of the first elastic member 510 and the bobbin 210 . A protrusion of the bobbin 210 may be disposed in the first space. Although the present embodiment has been described based on the fact that the conductive wire 610 is simply included in the injection-molded product, in another embodiment, the conductive wire 610 may be included outside the injection-molded product. In particular, in order to improve the strength of the wire, two or more wires 610 may be arranged in parallel or twisted in the injection molding.

The buffer unit 620 may include a first fixing unit 621 . The first fixing part 621 may be connected to the first elastic member 510 . The first fixing part 621 of the support member 600 may be disposed in the hole 515 of the extension part 514 . At this time, the diameter of the hole 515 of the extension 514 in a direction perpendicular to the optical axis (see D of FIG. 14 ) is the diameter of the first fixing part 621 of the support member 600 (see D of FIG. 13 ). ) can be the same as

The buffer unit 620 may include a second fixing unit 622 . The second fixing part 622 may be connected to the first substrate 420 . The second fixing part 622 may be disposed in the hole 423 of the first substrate 420 .

The buffer part 620 may include an extension part 623 . The extension part 623 may be disposed between the first fixing part 621 and the second fixing part 622 . The diameter of the first fixing part 621 , the diameter of the second fixing part 622 , and the diameter of the extension part 623 may be the same as each other. In this case, the diameter may be a diameter in a direction perpendicular to the optical axis.

The buffer unit 620 may include a deformable unit. The deformation portion may be easily deformed when the OIS is driven because the size, ie, the outer diameter, is small compared to other portions of the buffer portion 620 . The deformable unit may include a plurality of deformable units.

The buffer unit 620 may include a first deformable unit 624 . The first deformable part 624 may connect the first fixing part 621 and the extended part 623 to each other. A diameter in a direction perpendicular to the optical axis of the first deforming part 624 (see D1 in FIG. 13 ) may be smaller than a diameter in a direction perpendicular to the optical axis of the first fixing part 621 (see D in FIG. 13 ). have. A diameter D1 of the first deformable part 624 in a direction perpendicular to the optical axis may be smaller than a diameter D of the extension part 623 in a direction perpendicular to the optical axis. The diameter D1 of the first deformable part 624 may be 20% to 80% of the diameter D of the first fixing part 621 .

The buffer unit 620 may include a second deformable unit 625 . The second deformable part 625 may connect the second fixing part 622 and the extended part 623 to each other. A diameter D1 of the second deformable part 625 in a direction perpendicular to the optical axis may be smaller than a diameter D of the second fixing part 622 in a direction perpendicular to the optical axis. A diameter D1 of the second deformable part 625 in a direction perpendicular to the optical axis may be smaller than a diameter D of the extension part 623 in a direction perpendicular to the optical axis. A diameter D1 of the first deformable part 624 may be the same as a diameter D1 of the second deformable part 625 . In this case, the diameter may be a diameter in a direction perpendicular to the optical axis. The diameter D1 of the second deformable part 625 may be 20% to 80% of the diameter D of the second fixing part 622 .

The first deformable portion 624 may be a first concave portion. The second deformable portion 625 may be a second concave portion. The deformable part may include a first deformable part 624 and a second deformable part 625 . A portion of the buffer part 620 excluding the deformable part may be a body part. The buffer part 620 may include a body part and a deformable part. The buffer part 620 may include a body part and a concave part.

In this embodiment, the spring constant (Spring K) of the first elastic member 510 can be made higher, so that the frequency characteristic is improved and the attitude difference in the Z-axis direction (optical-axis direction) is improved, so that the change in resolution for the attitude can be reduced. In addition, the feedback system can operate more stably by improving the frequency characteristics.

The deformable portion including the first deformable portion 624 and the second deformed portion 625 has a circular shape, but may have a different shape of curvature, and the number of deformable portions may be plural according to the characteristics of the product. When the deformable portion is provided in multiple configurations, the deformable portion may be added to a portion having the greatest displacement when moved left and right to improve stress. The shape of the deformable part may take a form such as some bending or clamping.

The buffer 620 may include a groove 636 . The groove 626 may be recessed in the outer circumferential surface of the buffer unit 620 . The groove 626 may be spaced apart from the upper end and the lower end of the buffer unit 620 . The first deformable part 624 and the second deformable part 625 of the buffer part 620 may be formed by a groove 626 . The groove 626 of the buffer unit 620 may include a plurality of grooves. Groove 626 may include two grooves. The groove 626 of the buffer part 620 may include a first groove 627 adjacent to the upper end of the buffer part 620 and a second groove 628 adjacent to the lower end of the buffer part 620 . A first deformable portion 624 may be formed by the first groove 627 . A second deformable portion 625 may be formed by the second groove 628 .

The optical axis direction length of each of the first groove 627 and the second groove 628 of the buffer unit 620 (see L1 and L2 in FIG. 13) is the optical axis direction length of the buffer unit 620 (see L of FIG. 13) It may be 3% to 40% of That is, the optical axis direction length of the first deformable part 624 and the second deformable part 625 may be 3% to 40% of the optical axis direction length of the buffer unit 620 . The optical axis direction length of the second groove 628 of the buffer unit 620 (see L2 of FIG. 13 ) may be longer than the optical axis direction length of the first groove 627 (see L1 of FIG. 13 ).

The lens driving device 10 may include a second magnet 650 . The second magnet 650 may be a 'sensing magnet'. The second magnet 650 may be disposed on the bobbin 210 . The second magnet 650 may be disposed on the upper surface of the first coil 220 . The second magnet 650 may be detected by the first sensor 670 . The second magnet 650 may face the first sensor 670 . The second magnet 650 may be disposed on the side of the bobbin 210 . That is, the second magnet 650 may be disposed to face the side of the housing 310 . The second magnet 650 may be disposed in the groove 212 of the bobbin 210 so that an upper surface of the second magnet 650 may face the first elastic member 510 .

The lens driving device 10 may include a third magnet 660 . The third magnet 660 may be a 'compensation magnet'. The third magnet 660 may be disposed on the bobbin 210 . The third magnet 660 may be disposed to achieve magnetic force balance with the second magnet 650 . The third magnet 660 may be symmetrical with the second magnet 650 about the optical axis. The third magnet 660 may be disposed at a position corresponding to the second magnet 650 with respect to the optical axis. The third magnet 660 may have a size and/or shape corresponding to that of the second magnet 650 about the optical axis. A second magnet 650 may be disposed on one side of the bobbin 210 , and a third magnet 660 may be disposed on the other side of the bobbin 210 . The third magnet 660 may be disposed on the side of the bobbin 210 . That is, the third magnet 660 may be disposed to face the side of the housing 310 .

The lens driving device 10 may include a first sensor 670 . The first sensor 670 may be used for AF feedback driving. In this case, the first sensor 670 may be referred to as a 'AF feedback driving sensor'. The first sensor 670 may detect the second magnet 650 . The first sensor 670 may be disposed on the second substrate 330 . The first sensor 670 may be disposed in the housing 310 . As a modification, the first sensor 670 may be disposed on the bobbin 210 . The first sensor 670 may detect the movement of the first mover 200 . The first sensor 670 may include a Hall sensor. In this case, the Hall sensor may detect the movement of the bobbin 210 and the lens by sensing the magnetic force of the second magnet 650 . The sensed value sensed by the first sensor 670 may be used for AF feedback control.

The first sensor 670 may include a driver IC (Integrated Circuit). In this case, the driver IC may be described as including a Hall element serving as the first sensor 670 . The driver IC may control the power applied to the first coil 220 . The driver IC may be electrically connected to the first substrate 420 through the wire 610 of the support member 600 . The driver IC may be electrically connected to the first coil 220 through the second elastic member 520 .

The lens driving device 10 may include an OIS sensor 680 . The OIS sensor 680 may be used for OIS feedback control. In this case, the OIS sensor 680 may be referred to as an 'OIS feedback driving sensor'. The OIS sensor 680 may be disposed between the base 410 and the first substrate 420 . The OIS sensor 680 may detect the movement of the second mover 300 . The OIS sensor 680 may include a Hall sensor. At this time, the Hall sensor may sense the magnetic force of the first magnet 320 to detect the movement of the housing 310 and the first magnet 320 . The sensed value sensed by the OIS sensor 680 may be used for OIS feedback control.

The lens driving device 10 may include a damper. The damper may include a plurality of dampers. The first damper may connect the support member 600 and the housing 310 . The second damper may connect the bobbin 210 and the first elastic member 510 and/or the first elastic member 510 and the housing 310 . Through this, it is possible to lower the peak of the primary resonant frequency. That is, it is possible to damp the spring and the movable part, and the spring and the fixed part.

Hereinafter, a support member of a lens driving device according to a modified example will be described with reference to the drawings.

16A (a) is a cross-sectional view of a support member of the lens driving device according to the present embodiment, FIGS. 16A (b) to (f) are cross-sectional views of a supporting member of the lens driving device according to a modified example, and FIG. 16B (a) and (b) are cross-sectional views of a support member of a lens driving device according to a modified example, and FIGS. 17 (a) and (b) are cross-sectional views of a support member of a lens driving device according to a modified example.

As shown in (a) of FIG. 16A , the buffer unit 620 may include a groove 626 recessed from the outer peripheral surface of the buffer unit 620 . In this case, the groove 626 may include an inclined surface disposed to be inclined from the outer circumferential surface.

As shown in (b) of Figure 16a, the buffer portion 620b may include a groove 626 recessed from the outer peripheral surface of the buffer portion (620b). In this case, the groove 626 may include a plane orthogonal to the outer circumferential surface.

As shown in (c) of Figure 16a, the buffer portion 620c may include a groove 626 recessed from the outer peripheral surface of the buffer portion (620c). In this case, the groove 626 may include a curved surface having a curvature.

As shown in (d) of FIG. 16A , the buffer part 620d may include a groove 626 recessed from the outer circumferential surface of the buffer part 620d. In this case, the groove 626 may include an inclined surface disposed to be inclined from the outer circumferential surface. Furthermore, the inclined surface of the groove 626 may include a first inclined surface having a gentle inclination and a second inclined surface having a steep inclination. In the buffer part 620d, the first inclined surface may be disposed above the second inclined surface.

As shown in (e) of Figure 16a, the buffer portion 620e may include a groove 626 recessed from the outer peripheral surface of the buffer portion (620e). In this case, the groove 626 may include an inclined surface disposed to be inclined from the outer circumferential surface. Furthermore, the inclined surface of the groove 626 may include a first inclined surface having a gentle inclination and a second inclined surface having a steep inclination. The buffer unit 620e may be disposed below the first inclined surface than the second inclined surface.

As shown in (f) of Figure 16a, the buffer portion 620f may include a groove 626 recessed from the outer peripheral surface of the buffer portion (620f). In this case, the groove 626 may include an inclined surface disposed to be inclined from the outer circumferential surface. Furthermore, the groove 626 may include a plurality of grooves. That is, an additional groove may be provided.

As shown in (a) of FIG. 16B , the buffer unit 620g may include a portion extending and increasing in width from the upper end of the wire 610 .

As shown in (b) of Figure 16a, the buffer portion (620h) may include a groove. In this case, the edge of the groove may be formed to be rounded. That is, the groove may include a curved surface.

As shown in (a) of FIG. 17 , the buffer unit 620 may include a plurality of grooves recessed in the outer circumferential surface of the buffer unit 620 . In this case, the plurality of grooves of the buffer unit 620 may include three grooves spaced apart from each other in the optical axis direction. The three grooves may include a groove 629a disposed in the center of the buffer unit 620 . The groove 629a may be formed of a plurality of grooves. At least one of the three grooves may include any one or more of a curved surface having a curvature, an outer peripheral surface of the buffer unit 620 and an inclined inclined surface. The embodiment shown in Figs. 16 (a) to (f) can be analogously applied to the embodiment shown in Fig. 17 (a).

As shown in (b) of FIG. 17 , the buffer unit 620 may include a protrusion 629b protruding from the outer peripheral surface of the buffer unit 620 . The protrusion 629b may be formed in the center of the buffer unit 620 . The protrusion 629b may include a plurality of protrusions spaced apart from each other.

The lens driving device 10 may include a fixing member. The fixing member may include a stator 400 . The fixing member may include a base 410 , a first substrate 420 , and a second coil 430 . The housing 310 may be disposed on the fixing member. The support member 600 may be disposed between the elastic member 500 and the fixing member. The support member 600 may include a wire 610 and a member disposed around the wire 610 . The member may include a buffer 620 . Based on the optical axis direction, the member may have a length greater than 1/2 of the length of the bobbin 210 . The length of the bobbin 210 may be a length between the upper surface and the lower surface of the bobbin 210 . Alternatively, the length of the bobbin 210 may be between the uppermost end and the lowermost end of the bobbin 210 . The wire 610 may protrude from one end of the member to be coupled to the elastic member 500 , and may protrude from the other end of the member to be coupled to the fixing member. One end of the wire 610 may protrude from the upper surface of the member. The other end of the wire 610 may protrude from the lower surface of the member.

The support member 600 may include a member including a column shape disposed around the wire 610 . The columnar shape may be a circular or polygonal columnar shape. The length of the member may be greater than or equal to the distance between the upper elastic member and the lower elastic member. The member may include a body portion and a concave portion. The recessed portion may include a deformable portion. The deformable portion may be a portion formed by deforming a portion of the body portion. The length of the body portion of the member may be greater than or equal to the distance between the upper elastic member and the lower elastic member.

The support member 600 may include a wire 610 and a member surrounding 50% or more of the wire 610 . The member may include a covering portion. The member may include a cover portion. The member may include a body portion and a concave portion having a diameter smaller than that of the body portion in a region adjacent to the elastic member 500 . In this case, the body part may refer to all parts except for the concave part. The concave portion may be a deformable portion. The concave portion may include a first concave portion adjacent to the upper elastic member and a second concave portion adjacent to the lower elastic member. The second concave portion may be disposed between the virtual extension surface extending from the upper surface of the lower elastic member and the lower surface of the substrate.

The first concave portion may be located within 5% of the total length of the body portion at the end of the body portion. The first concave portion may be located at the end of the body portion within 4.8% of the total length of the body portion. The first concave portion may be located within 0.12 mm from the end of the body portion. A part of the wire 610 of the support member 600 may protrude from the end of the body part. The wire 610 of the support member 600 may protrude 0.08 mm from the end of the body. The wire 610 of the support member 600 may protrude from the end of the body portion to less than 4% of the total length of the support member 600 . The wire 610 of the support member 600 may protrude from the end of the body portion within 3% of the total length of the support member 600 . In this case, the end of the body part may be a head part or a fixed part. The length of the portion where the wire 610 of the support member 600 protrudes from the body portion may be at least the thickness of the upper elastic member. The length of the portion in which the wire 610 of the support member 600 protrudes from the body portion may be at least 0.04 mm.

In one embodiment, when the upper surface of the body portion of the support member 600 is disposed at the same height as the upper surface of the upper elastic member, the length of the portion where the wire 610 of the support member 600 protrudes from the body portion does not exceed 0.5 mm. It can be formed so that

One end of the body portion may be disposed at the same height as the upper elastic member. One end of the body portion may be in contact with the upper elastic member. One end of the body portion may be disposed below the upper elastic member. One end of the body portion may be disposed in the hole of the upper elastic member.

The other end of the body may be disposed in the hole of the first substrate 420 . The other end of the body portion may be in contact with the first substrate 420 . The other end of the body may be disposed on the first substrate 420 . The other end of the body part may be disposed in the hole of the substrate part 431 of the second coil 430 .

The member of the support member 600 may have a length within 50 to 99% of the wire 600 . The body portion of the member may include fixing parts 621 and 622 and an extension part 623 . The concave portion may be positioned between the fixing portions 621 and 622 and the extended portion 623 . The fixing part may include a first fixing part 621 and a second fixing part 622 . The first concave part may be positioned between the first fixing part 621 and the extension part 623 . The second concave part may be positioned between the second fixing part 622 and the extension part 623 . The length of the recess may be 3-40% of the length of the member. The member may be formed of a material different from that of the wire 600 . The member may be formed of a covering portion. The coating portion may be distinguished from a damper having viscosity. In a variant, the covering may be coupled to the housing 310 .

Hereinafter, a camera module according to the present embodiment will be described with reference to the drawings.

18 is an exploded perspective view of the camera device according to the present embodiment.

The camera module 10A may include a camera device.

The camera module 10A may include a lens module 20 . The lens module 20 may include at least one lens. The lens may be disposed at a position corresponding to the image sensor 60 . The lens module 20 may include a lens and a barrel. The lens module 20 may be coupled to the bobbin 210 of the lens driving device 10 . The lens module 20 may be coupled to the bobbin 210 by screw coupling and/or adhesive. The lens module 20 may move integrally with the bobbin 210 .

The camera module 10A may include a filter 30 . The filter 30 may serve to block light of a specific frequency band from being incident on the image sensor 60 in light passing through the lens module 20 . The filter 30 may be disposed to be parallel to the x-y plane. The filter 30 may be disposed between the lens module 20 and the image sensor 60 . The filter 30 may be disposed on the sensor base 40 . Alternatively, the filter 30 may be disposed on the base 410 . The filter 30 may include an infrared filter. The infrared filter may block light in the infrared region from being incident on the image sensor 60 .

The camera module 10A may include a sensor base 40 . The sensor base 40 may be disposed between the lens driving device 10 and the printed circuit board 50 . The sensor base 40 may include a protrusion 41 on which the filter 30 is disposed. An opening may be formed in a portion of the sensor base 40 where the filter 30 is disposed so that light passing through the filter 30 may be incident on the image sensor 60 . The adhesive member 45 may couple or adhere the base 410 of the lens driving device 10 to the sensor base 40 . The adhesive member 45 may additionally serve to prevent foreign substances from being introduced into the lens driving device 10 . The adhesive member 45 may include any one or more of an epoxy, a thermosetting adhesive, and an ultraviolet curable adhesive.

The camera module 10A may include a printed circuit board (PCB) 50 . The printed circuit board 50 may be a board or a circuit board. The lens driving device 10 may be disposed on the printed circuit board 50 . The sensor base 40 may be disposed between the printed circuit board 50 and the lens driving device 10 . The printed circuit board 50 may be electrically connected to the lens driving device 10 . The image sensor 60 may be disposed on the printed circuit board 50 . The printed circuit board 50 may include various circuits, elements, control units, etc. to convert an image formed on the image sensor 60 into an electrical signal and transmit it to an external device.

The camera module 10A may include an image sensor 60 . The image sensor 60 may have a configuration in which light passing through the lens and filter 30 is incident to form an image. The image sensor 60 may be mounted on the printed circuit board 50 . The image sensor 60 may be electrically connected to the printed circuit board 50 . For example, the image sensor 60 may be coupled to the printed circuit board 50 by a surface mounting technology (SMT). As another example, the image sensor 60 may be coupled to the printed circuit board 50 by flip chip technology. The image sensor 60 may be disposed so that the lens and the optical axis coincide. That is, the optical axis of the image sensor 60 and the optical axis of the lens may be aligned. The image sensor 60 may convert light irradiated to the effective image area of the image sensor 60 into an electrical signal. The image sensor 60 may be any one of a charge coupled device (CCD), a metal oxide semi-conductor (MOS), a CPD, and a CID.

The camera module 10A may include a motion sensor 70 . The motion sensor 70 may be mounted on the printed circuit board 50 . The motion sensor 70 may be electrically connected to the controller 80 through a circuit pattern provided on the printed circuit board 50 . The motion sensor 70 may output rotational angular velocity information due to the movement of the camera module 10A. The motion sensor 70 may include a 2-axis or 3-axis gyro sensor, or an angular velocity sensor.

The camera module 10A may include a control unit 80 . The control unit 80 may be disposed on the printed circuit board 50 . The controller 80 may be electrically connected to the first and second coils 220 and 430 of the lens driving device 10 . The controller 80 may individually control the direction, intensity, and amplitude of the current supplied to the first and second coils 220 and 430 . The controller 80 may control the lens driving device 10 to perform an autofocus function and/or an image stabilization function. Furthermore, the controller 80 may perform autofocus feedback control and/or handshake correction feedback control for the lens driving device 10 .

The camera module 10A may include a connector 90 . The connector 90 may be electrically connected to the printed circuit board 50 . The connector 90 may include a port for electrically connecting to an external device.

Hereinafter, an optical device according to the present embodiment will be described with reference to the drawings.

19 is a perspective view showing the optical device according to the present embodiment, and FIG. 20 is a configuration diagram of the optical device according to the present embodiment.

The optical device 10B includes a mobile phone, a mobile phone, a smart phone, a portable smart device, a digital camera, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), and a navigation device. may be any one of However, the type of the optical device 10B is not limited thereto, and any device for taking an image or a picture may be included in the optical device 10B.

The optical device 10B may include a body 850 . The body 850 may have a bar shape. Alternatively, the main body 850 may have various structures such as a slide type, a folder type, a swing type, a swivel type, in which two or more sub-bodies are coupled to be relatively movable. The body 850 may include a case (casing, housing, and cover) forming an exterior. For example, the body 850 may include a front case 851 and a rear case 852 . Various electronic components of the optical device 10B may be embedded in a space formed between the front case 851 and the rear case 852 . A display module 753 may be disposed on one surface of the body 850 . A camera 721 may be disposed on one or more surfaces of one surface of the body 850 and the other surface disposed opposite to the one surface.

The optical device 10B may include a wireless communication unit 710 . The wireless communication unit 710 may include one or more modules that enable wireless communication between the optical device 10B and the wireless communication system or between the optical device 10B and the network in which the optical device 10B is located. For example, the wireless communication unit 710 includes any one or more of a broadcast reception module 711 , a mobile communication module 712 , a wireless Internet module 713 , a short-range communication module 714 , and a location information module 715 . can do.

The optical device 10B may include an A/V input unit 720 . The A/V (Audio/Video) input unit 720 is for inputting an audio signal or a video signal, and may include any one or more of a camera 721 and a microphone 722 . In this case, the camera 721 may include the camera module 10A according to the present embodiment.

The optical device 10B may include a sensing unit 740 . The sensing unit 740 includes the optical device 10B such as the opening/closing state of the optical device 10B, the position of the optical device 10B, the presence or absence of user contact, the orientation of the optical device 10B, and acceleration/deceleration of the optical device 10B. ) may be detected to generate a sensing signal for controlling the operation of the optical device 10B. For example, when the optical device 10B is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. In addition, it may be responsible for sensing functions related to whether the power supply unit 790 is supplied with power, whether the interface unit 770 is coupled to an external device, and the like.

The optical device 10B may include an input/output unit 750 . The input/output unit 750 may be configured to generate an input or output related to visual, auditory, or tactile sense. The input/output unit 750 may generate input data for controlling the operation of the optical device 10B, and may also output information processed by the optical device 10B.

The input/output unit 750 may include any one or more of a keypad unit 751 , a touch screen panel 752 , a display module 753 , and a sound output module 754 . The keypad unit 751 may generate input data in response to a keypad input. The touch screen panel 752 may convert a change in capacitance generated due to a user's touch on a specific area of the touch screen into an electrical input signal. The display module 753 may output an image captured by the camera 721 . The display module 753 may include a plurality of pixels whose color changes according to an electrical signal. For example, the display module 753 is a liquid crystal display (liquid crystal display), a thin film transistor-liquid crystal display (thin film transistor-liquid crystal display), an organic light-emitting diode (organic light-emitting diode), a flexible display (flexible display), three-dimensional It may include at least one of a display (3D display). The sound output module 754 outputs audio data received from the wireless communication unit 710 in a call signal reception, a call mode, a recording mode, a voice recognition mode, or a broadcast reception mode, or stored in the memory unit 760 . Audio data can be output.

The optical device 10B may include a memory unit 760 . A program for processing and control of the controller 780 may be stored in the memory unit 760 . Also, the memory unit 760 may store input/output data, for example, any one or more of a phone book, a message, an audio, a still image, a photo, and a moving image. The memory unit 760 may store an image captured by the camera 721 , for example, a photo or a moving picture.

The optical device 10B may include an interface unit 770 . The interface unit 770 serves as a passage for connecting to an external device connected to the optical device 10B. The interface unit 770 may receive data from an external device, receive power and transmit it to each component inside the optical device 10B, or transmit data inside the optical device 10B to an external device. The interface unit 770 includes a wired/wireless headset port, an external charger port, a wired/wireless data port, a memory card port, a port for connecting a device having an identification module, and an audio I/O (Input/Output) It may include any one or more of a port, a video input/output (I/O) port, and an earphone port.

The optical device 10B may include a controller 780 . The controller 780 may control the overall operation of the optical device 10B. The controller 780 may perform related control and processing for voice call, data communication, video call, and the like. The controller 780 may include a display controller 781 that controls the display module 753 that is the display of the optical device 10B. The controller 780 may include a camera controller 782 that controls the camera module 10A. The controller 780 may include a multimedia module 783 for playing multimedia. The multimedia module 783 may be provided within the controller 180 or may be provided separately from the controller 780 . The controller 780 may perform a pattern recognition process capable of recognizing a handwriting input or a drawing input performed on the touch screen as characters and images, respectively.

The optical device 10B may include a power supply 790 . The power supply unit 790 may receive external power or internal power under the control of the control unit 780 to supply power required for operation of each component.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those of ordinary skill in the art to which the present invention pertains can realize that the present invention can be embodied in other specific forms without changing the technical spirit or essential features. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

Claims (39)

fixing member;
a housing disposed on the fixing member;
a bobbin disposed within the housing;
an elastic member connecting the bobbin and the housing; and
A support member disposed between the elastic member and the fixing member,
The support member includes a wire and a member disposed around the wire,
Based on the optical axis direction, the member has a length greater than 1/2 of the length of the bobbin,
The wire protrudes from one end of the member to be coupled to the elastic member, and the wire protrudes from the other end of the member to be coupled to the fixing member. fixing member;
a housing disposed on the fixing member;
a bobbin disposed within the housing;
an elastic member connecting the bobbin and the housing; and
A support member disposed between the elastic member and the fixing member,
The support member includes a wire and a member including a columnar shape disposed around the wire,
The wire protrudes from one end of the member to be coupled to the elastic member, and the wire protrudes from the other end of the member to be coupled to the fixing member. 3. The method of claim 1 or 2,
The elastic member includes an upper elastic member and a lower elastic member disposed under the upper elastic member,
The length of the member is greater than or equal to the distance between the upper elastic member and the lower elastic member. 3. The method of claim 1 or 2,
The member includes a body portion and a concave portion. 3. The method of claim 2,
The pillar shape is a lens driving device having a circular or polygonal pillar shape. housing;
a bobbin disposed within the housing;
an elastic member connecting the bobbin and the housing; and
and a support member coupled to the elastic member and supporting the housing,
The support member includes a wire and a member surrounding 50% or more of the wire. 7. The method of claim 6,
The member includes a body portion and a concave portion having a diameter smaller than that of the body portion in a region adjacent to the elastic member. 8. The method of claim 7,
and a base spaced apart from the housing,
The elastic member includes an upper elastic member and a lower elastic member,
The concave portion includes a first concave portion adjacent to the upper elastic member and a second concave portion adjacent to the lower elastic member,
The second concave portion is disposed between the virtual extension surface extending from the upper surface of the lower elastic member and the lower surface of the substrate. 9. The method of claim 8,
The first concave portion is located at the end of the body portion within 4.8% of the total length of the body portion lens driving device. 8. The method of claim 7,
A lens driving device in which a portion of the wire of the support member protrudes from an end of the body. 11. The method of claim 10,
The wire of the support member protrudes from the end of the body to less than 3% of the total length of the support member. 9. The method of claim 8,
The substrate includes a first substrate and a second substrate disposed on the first substrate,
One end of the body portion is disposed at the same height as the upper elastic member,
The other end of the body portion is a lens driving device disposed in the hole of the first substrate. 7. The method of claim 6,
The member is a lens driving device having a length within 50 to 99% of the wire. 9. The method of claim 8,
The body part is a lens driving device including a fixing part and an extension part. 15. The method of claim 14,
The concave portion is positioned between the fixing portion and the extension portion. 15. The method of claim 14,
The fixing part includes a first fixing part and a second fixing part,
The first concave portion is located between the first fixing portion and the extension portion,
The second concave portion is positioned between the second fixing portion and the extended portion. 8. The method of claim 7,
The length of the concave portion is a lens driving device having a length of 3 to 40% of the member. 7. The method of claim 6,
The member is a lens driving device formed of a material different from that of the wire. 9. The method of claim 8,
a first substrate disposed on the base;
a first coil disposed on the bobbin;
a magnet disposed in the housing and facing the first coil; and
and a second coil facing the magnet. housing;
a bobbin disposed within the housing;
a base spaced apart from the housing;
a first coil disposed on the bobbin;
a magnet disposed in the housing and facing the first coil;
a first substrate disposed on the base and including a second coil facing the magnet;
a first elastic member connecting the bobbin and the housing; and
a support member connecting the first elastic member and the first substrate;
The support member includes a wire and a buffer portion formed of a material different from the wire and surrounding at least a portion of the wire. 21. The method of claim 20,
A lens driving device in which the wire is formed of a conductive material and the buffer is formed of a non-conductive material. 21. The method of claim 20,
The wire is formed of a metal,
The buffer part is a lens driving device formed of an elastomer. 21. The method of claim 20,
The buffer unit includes a first fixing part connected to the first elastic member, a second fixing part connected to the first substrate, and an extension part disposed between the first fixing part and the second fixing part; and a first deformable part connecting the first fixing part and the extended part,
A diameter of the first deforming part in a direction perpendicular to the optical axis is smaller than a diameter of the first fixing part in a direction perpendicular to the optical axis. 24. The method of claim 23,
The buffer part includes a second deformable part connecting the second fixing part and the extended part,
A diameter of the second deformable part in a direction perpendicular to the optical axis is smaller than a diameter of the second fixing part in a direction perpendicular to the optical axis. 25. The method of claim 24,
The diameter of the first fixing part, the diameter of the second fixing part, and the diameter in a direction perpendicular to the optical axis of the extension part are equal to each other,
The diameter of the first deformable portion and the diameter of the second deformable portion are equal to each other. 24. The method of claim 23,
The first elastic member includes an inner portion coupled to the bobbin, an outer portion coupled to the housing, a connecting portion connecting the inner portion and the outer portion, and an extension portion extending from the outer portion and coupled to the support member,
The extension portion of the first elastic member includes a hole,
The first fixing part of the support member is disposed in the hole of the extension part,
A diameter of the hole in a direction perpendicular to the optical axis of the extension portion is the same as the diameter of the first fixing portion of the support member. 25. The method of claim 24,
The first substrate includes a hole,
The second fixing part of the support member is disposed in the hole of the first substrate,
A diameter of the hole of the first substrate in a direction perpendicular to the optical axis is the same as the diameter of the second fixing part of the support member. 25. The method of claim 24,
The diameter of the first deformable part is 20% to 80% of the diameter of the first fixing part. 21. The method of claim 20,
The buffer unit includes a recess formed in the outer peripheral surface of the buffer unit,
The groove of the buffer part is a lens driving device that is spaced apart from the upper end and the lower end of the buffer part. 30. The method of claim 29,
The groove of the buffer unit includes a first groove adjacent to the upper end of the buffer unit, and a second groove adjacent to the lower end of the buffer unit,
The optical axis direction length of each of the first groove and the second groove of the buffer part is 3% to 40% of the optical axis direction length of the buffer part. 31. The method of claim 30,
The optical axis direction length of the second groove of the buffer part is longer than the optical axis direction length of the first groove. 21. The method of claim 20,
The buffer unit has a circular cross section in a direction perpendicular to the optical axis. 21. The method of claim 20,
The wire is a lens driving device including a first portion protruding from the upper end of the buffer unit, and a second portion protruding from the lower end of the buffer unit. 34. The method of claim 33,
The first portion of the wire is coupled to the upper surface of the first elastic member by a conductive member,
The second portion of the wire is coupled to the lower surface of the first substrate by a conductive member. 21. The method of claim 20,
The wire of the support member includes a plurality of wires,
The plurality of wires are twisted with each other, and the lens driving device is disposed in the buffer unit. 21. The method of claim 20,
The buffer part includes a plurality of grooves recessed in the outer peripheral surface of the buffer part,
The plurality of grooves of the buffer unit include three grooves spaced apart from each other in the optical axis direction,
At least one of the three grooves includes at least one of a curved surface having a curvature, and an inclined surface inclined from the outer peripheral surface of the buffer unit. 21. The method of claim 20,
a second substrate disposed on the housing;
a driver IC disposed on the second substrate; and
and a second elastic member connecting the bobbin and the housing and disposed under the first elastic member,
the driver IC is electrically connected to the first substrate through the wire of the support member;
The first coil is electrically connected to the driver IC through the second elastic member. printed circuit board;
an image sensor disposed on the printed circuit board;
The lens driving device of claim 20 disposed on the printed circuit board; and
A camera module including a lens coupled to the bobbin of the lens driving device. main body;
The camera module of claim 38 disposed on the body; and
and a display disposed on the main body and outputting an image photographed by the camera module.

Images