CN108121043B

CN108121043B - Multiple lens and camera modules

Info

Publication number: CN108121043B
Application number: CN201710814296.4A
Authority: CN
Inventors: 王明珠; 刘春梅; 廖海龙; 王一琪; 丁亮; 郭楠
Original assignee: Ningbo Sunny Opotech Co Ltd
Current assignee: Ningbo Sunny Opotech Co Ltd
Priority date: 2016-11-28
Filing date: 2017-09-11
Publication date: 2025-02-25
Anticipated expiration: 2037-09-11
Also published as: CN207340018U; CN207336891U; CN108121043A

Abstract

The application provides a multi-group lens, a camera module and electronic equipment. The multi-group lens may include a first group unit and a second group unit, the first group unit may include a first carrier body and at least one first lens accommodated in the first carrier body, and the second group unit may include a second carrier body, at least one second lens accommodated in the second carrier body, and a socket connected with the second carrier body. In the case of the first group unit and the second group unit being assembled, there may be an adjustable gap between the first carrier body and the receptacle, and between the bottom surface of the lowermost lens of the first carrier body and the first lens and the top surface of the uppermost lens of the second lens, so that the first group unit and the second group unit may have six degrees of freedom adjustment spaces.

Description

Multi-group lens and camera module

Technical Field

The application relates to the field of camera modules, in particular to a multi-group lens, a multi-group lens camera module and electronic equipment.

Background

The lens is used as an important component of the camera module to directly influence the imaging quality of the camera module. With the continuous development of intelligence, the requirements on the camera module are continuously improved, for example, the imaging aspect has higher and higher requirements on high pixels, and the number of lenses in the lens of the camera module is continuously increased, for example, 5 to 6 lenses are continuously increased.

In conventional lenses, a plurality of lenses are typically assembled in a barrel one by one, and during the assembly process, a certain tolerance is inevitably present between each lens and barrel, and finally the lens is assembled between the lens and barrel in its entirety to form a cumulative tolerance, that is, an assembly tolerance of a single lens. Therefore, the larger the number of lenses, the larger the tolerance stack, the lower the overall quality of the lens, and the lower the yield in the lens production process.

On the other hand, with the conventional lens, a plurality of lenses are assembled in the same barrel, and the relative positions of the lenses are determined, so that adjustment cannot be performed. Once the lens is assembled in the barrel, the quality of the lens is determined, which also makes the machining accuracy requirements for the barrel and the lens high.

It is worth mentioning that for lenses with a smaller number of lenses, assembly tolerances of the lenses have less influence. However, when the number of lenses increases, the imaging quality decreases while the assembly yield decreases due to the material and assembly tolerance of each lens, lens barrel, spacer, etc., and the lens assembly difficulty increases, so how to ensure good imaging quality in a multi-lens structure and yield in the production process is an important aspect to be studied.

It is further worth mentioning that the quality of the lens is directly affected by the assembly relationship of the lens and the lens barrel, and for the camera module, especially for some intelligent devices, such as smart phones, the size of the camera module is relatively small, so how to combine with the existing device requirements, fully utilize the structure of the lens, and research on the lens suitable for practical production and application is also a consideration aspect.

Disclosure of Invention

The present application aims to provide a solution that overcomes at least one of the above-mentioned drawbacks of the prior art.

One of the objectives of the present invention is to provide a multi-group lens and an image capturing module, wherein the multi-group lens is assembled by a plurality of group units, so as to reduce the accumulated tolerance of the whole lens.

One of the objectives of the present invention is to provide a multi-group lens and an image capturing module, in which an adjustable gap exists between a first group unit and a second group unit when the first group unit and the second group unit are assembled, so that the relative positions of the group units can be adjusted during the assembly process of the multi-group lens, and the accumulation tolerance is reduced.

One of the objectives of the present invention is to provide a multi-group lens and an image capturing module, wherein a reserved adjustable gap exists between a first bearing body and a receiving portion when a first group unit and a second group unit are assembled, and a reserved adjustable gap exists between the first bearing body and a first lens and a second lens, so that the first group unit and the second group unit can have six degrees of freedom adjustment space.

An objective of the present invention is to provide a multi-group lens and an image capturing module, wherein each group unit includes a plurality of lenses, so that the number of lenses of the multi-group lens is larger to provide better optical imaging quality.

According to one aspect of the present application, there is provided a multi-group lens comprising a first group unit comprising a first carrier body and at least one first lens accommodated in the first carrier body, and a second group unit comprising a second carrier body, at least one second lens accommodated in the second carrier body, and a socket connected to the second carrier body, wherein there is an adjustable gap between the first carrier body and the socket and between a bottom surface of a lowermost lens of the first carrier body and the first lens and a top surface of an uppermost lens of the second lenses when the first group unit and the second group unit are assembled.

In one embodiment, an adjustable gap exists between the outer peripheral surface of the first bearing body and the inner peripheral surface of the receiving portion.

In one embodiment, an adjustable gap exists between the bottom surface of the first carrier body and the top surface of the receptacle.

In one embodiment, an adjustable gap exists between the bottom surface of the lowermost lens in the first lens and the top surface of the receptacle in the second group of units.

In one embodiment, the first group of cells further includes an extension extending outwardly from the first carrier body, with an adjustable gap between a bottom surface of the extension and a top surface of the receptacle.

In one embodiment, the first group of cells includes at least one spacer ring disposed in cooperation with the first lens to provide a predetermined light path, wherein one of the spacer rings is disposed below a lowermost one of the first lenses, and an adjustable gap exists between a bottom surface of the one spacer ring and a top surface of the uppermost lens and the receptacle of the second lens.

In one embodiment, the second group of units includes at least one spacer ring disposed in cooperation with the second lens to provide a predetermined light path, wherein one of the spacer rings is disposed on an upper portion of an uppermost lens of the second lens, and an adjustable gap exists between a bottom surface of a lowermost lens of the first lens and a top surface of the one spacer ring.

In one embodiment, the overall optical performance of the multi-group lens is adjusted by means of active calibration, the adjustable gap being formed as a curing gap.

In one embodiment, the cure gap enables the first group of cells to be tilted at an angle of 0.5 ° or less relative to the second group of cells.

In one embodiment, the spacer is further disposed between two adjacent first lenses.

In one embodiment, the spacer is further disposed between two adjacent second lenses.

In one embodiment, a gap between a bottom surface of the extension and a top surface of the receptacle accommodates an adhesive medium to secure the first group of cells with the second group of cells.

In one embodiment, the extension includes a downwardly projecting tab and the receptacle includes a downwardly recessed mating slot, the tab being located within the mating slot when the extension is overlapped by the receptacle.

In one embodiment, the bonding medium is arranged to have a width of 0.05 to 1.5mm in the radial direction.

In one embodiment, the region of the first receiving body corresponding to the receiving portion forms an effective exposure region of the adhesive medium, and the exposure region has a width of 0.1mm or more.

In one embodiment, the bonding medium is selected from one or more of UV glue, thermosetting glue, UV thermosetting glue, epoxy glue.

In one embodiment, the first carrier body of the first group of cells has a reinforcing fixation groove corresponding to the position of the lowermost lens in the first lens and for receiving an adhesive medium to reinforce and fix the lowermost lens.

In one embodiment, the first carrier body of the first group of cells has a reinforcing fixation area, and the reinforcing fixation hole penetrates through a sidewall of the first carrier body for accommodating an adhesive medium to reinforce and fix the first lens.

In one embodiment, when the first group unit and the second group unit are assembled, the central axes of the first group unit and the central axes of the second group unit are staggered by 0-15 μm.

In one embodiment, the central axis of the first group of cells and the central axis of the second group of cells have an inclination angle of less than 0.5 degrees in case the first group of cells and the second group of cells are assembled.

In one embodiment, when the first group unit and the second group unit are assembled, the first group unit and the second group unit are sequentially arranged along the same optical axis direction.

In one embodiment, in a case where the first group unit is assembled with the second group unit, an optical axis direction of the first group unit is parallel to an optical axis direction of the second group unit.

In one embodiment, at least one of the first group lens and the second group lens is two or more in number.

According to another aspect of the present application, there is provided an image capturing module of a multi-group lens including the multi-group lens as described above, and a photosensitive assembly, the multi-group lens being located in a photosensitive path of the photosensitive assembly.

In one embodiment, the camera module includes a driving element to which at least one of the group units of the multi-group lens is mounted, the driving element being mounted to the photosensitive assembly.

In one embodiment, the photosensitive assembly comprises a photosensitive element, a circuit board and a lens seat, wherein the photosensitive element is electrically connected to the circuit board, the lens seat is mounted on the circuit board, and the driving element is mounted on the lens seat to form the automatic focusing camera module.

In one embodiment, the photosensitive assembly comprises a photosensitive element, a circuit board and a lens seat, wherein the lens of the plurality of groups is installed on the lens seat, the photosensitive element is electrically connected with the circuit board, and the lens seat is installed on the circuit board to form the fixed focus camera shooting module.

In one embodiment, the camera module includes a filter element, and the filter element is mounted on the lens base.

According to still another aspect of the application, an electronic device is provided, which comprises a device main body and the camera module, wherein the camera module is matched with the device main body to realize image acquisition and reproduction.

In one embodiment, the electronic device is any one of a smart phone, a wearable device, a computer device, a television, a vehicle, a camera, and a monitoring apparatus.

Drawings

Exemplary embodiments are illustrated in referenced figures. The embodiments and figures disclosed herein are to be regarded as illustrative rather than restrictive.

FIG. 1 is a schematic diagram illustrating a multi-group lens according to one embodiment of the application;

Fig. 2 is an enlarged schematic view showing a dotted line portion in fig. 1;

fig. 3 is a schematic diagram showing a multi-group lens according to another embodiment of the present application;

Fig. 4 is an enlarged schematic view showing a dotted line portion in fig. 3;

fig. 5 is a schematic diagram showing a multi-group lens according to still another embodiment of the present application, in which details of broken line portions are shown in an enlarged schematic diagram;

FIG. 6 is a schematic diagram illustrating a multi-group lens according to a variant embodiment of the application, wherein the detail of the dashed portion is shown in an enlarged schematic diagram;

FIG. 7 is a schematic diagram illustrating a multi-group lens according to a variant embodiment of the application, wherein the detail of the dashed portion is shown in an enlarged schematic diagram;

fig. 8 is a schematic view showing an image pickup module constituted by a plurality of group lenses according to an embodiment of the present application, and

Fig. 9 is a schematic diagram showing an application of an image capturing module with multiple groups of lenses according to an embodiment of the present application.

Detailed Description

For a better understanding of the application, various aspects of the application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the application and is not intended to limit the scope of the application in any way. Like reference numerals refer to like elements throughout the specification. The expression "and/or" includes any and all combinations of one or more of the associated listed items.

It should be noted that in this specification, the expressions first, second, etc. are used merely to distinguish one feature from another feature and do not represent any limitation of the feature. Thus, a first group of cells, set forth below, may also be referred to as a second group of cells without departing from the teachings of the present application.

In the drawings, the thickness, size and shape of the object have been slightly exaggerated for convenience of explanation. The figures are merely examples and are not drawn to scale.

It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Furthermore, when a statement such as "at least one of the following" appears after a list of features that are listed, the entire listed feature is modified instead of modifying a separate element in the list. Furthermore, when describing embodiments of the present application, the use of "may" means "one or more embodiments of the present application. Also, the term "exemplary" is intended to refer to an example or illustration.

As used herein, the terms "substantially," "about," and the like are used as terms of a table approximation, not as terms of a table level, and are intended to illustrate inherent deviations in measured or calculated values that would be recognized by one of ordinary skill in the art.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments. Throughout the drawings and the written description, the same reference numerals denote the same elements, and thus, their description will not be repeated.

It should be understood that in the present application, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner" or "outer," etc. indicate orientation or positional relationships based on that shown in the drawings, which are merely for convenience in describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus the above terms should not be construed as limiting the application.

Fig. 1 illustrates a multi-group lens 100 according to an embodiment of the present application, and fig. 2 is an enlarged schematic view illustrating a dotted line portion in fig. 1. As shown in fig. 1, the multi-group lens 100 may include a first group of cells 11 and a second group of cells 12. For convenience of explanation, only two group units are shown in the present embodiment, but the present application is not limited thereto, and the multi-group lens may include two or more group units. It should be understood that the first group of cells 11 shown in fig. 1 may be referred to as an upper group of cells, and the second group of cells 12 may be referred to as a lower group of cells.

The first group unit 11 may include a first carrier body 1121 and at least one first lens 111 accommodated in the first carrier body 1121. The first carrier body 1121 is hollow in structure to accommodate, mount, and arrange each lens along the light path. The carrier body may include all other structures other than optical lenses. The first lens 111 is sequentially disposed in the first carrier body 1121 in a light path. In the present embodiment, the first lens 111 may include three lenses, i.e., an uppermost lens 1111, a middle lens 1112, and a lowermost lens 1113. However, the present application is not limited thereto, and the number of the first lenses 111 may be 1,2, 3 or more than 3.

The second group unit 12 may include a second carrier body 1221, and at least one second lens 121 housed in the second carrier body 1221. The second carrier body 1221 is hollow to accommodate, mount, and arrange the lenses along the light path. The second lens 121 is in turn arranged in the first carrier body 1221 in the light path. In this embodiment, the first lens 121 may include three lenses, i.e., an uppermost lens 1211, a middle lens 1212, and a lowermost lens 1213. However, the present application is not limited thereto, and the number of the first lenses 121 may be 1, 2, 3 or more than 3.

The second group of units 12 may also include a bay 1222 coupled to the second carrier body 1221. The receptacle 1222 is connected (e.g., integrally connected) to the second carrier body 1221 so as to mate with the first carrier body 1121 of the first group unit 11 for receiving the first carrier body 1121 or the first lens 121 of the first group unit 11. The receptacle 1222 may be an inwardly extending hollow structure to provide a bridging support location for the first group element 11 and to provide a light path for each second lens 121 located within the second carrier body 1221.

As shown in fig. 1, in the case of assembling the first group of units 11 and the second group of units 12, an adjustable gap may exist between the first carrier body 1121 in the first group of units 11 and the receiving portion 1222 of the second group of units 12, so as to provide a left-right adjustment space for the first group of units 11 and the second group of units 12. In one embodiment, an adjustable gap S1 may exist between the outer peripheral surface of the first carrier body 1121 in the first group unit 11 and the inner peripheral surface of the receiving portion 1222 of the second group unit 12 (see the enlarged schematic view of the dotted line portion in fig. 1).

As shown in fig. 1, in the case where the first group unit 11 and the second group unit 12 are assembled, an adjustable gap S3 (see the enlarged schematic view of the dotted line portion in fig. 1) may exist between the bottom surfaces of the lowermost lens 1113 in the first carrier body 1121 and the first lens 111 and the top surface of the uppermost lens 1211 in the second lens 121, thereby providing a space for the first group unit 11 and the second group unit 12 to adjust up and down. According to the present embodiment, there may be an adjustable gap between the outer peripheral surface of the first carrier body 1121 and the inner peripheral surface of the receiving portion 1222, and between the bottom surface of the lowermost lens 1113 in the first lens 111 and the top surface of the uppermost lens 1211 in the second lens 121. By reserving the adjustable gap prior to assembly, six degrees of freedom adjustment space can be provided for the first group of cells and the second group of cells during assembly.

It should be appreciated that the first group of cells 11 and the second group of cells 12 may be assembled together in a variety of ways. In one embodiment, the first group unit 11 and the second group unit 12 may be sequentially arranged along the same optical axis. In one embodiment, in the case of assembly of the group units, the optical axis direction of the lenses in the first group unit 11 may be parallel to the optical axis direction of the lenses in the second group unit 12.

In one embodiment, after the first group of units 11 and the second group of units 12 are assembled together, the central axes of the first group of units 11 and the central axes of the second group of units 12 may be offset from each other by 0-15 μm. In this context, referring to FIG. 1, for ease of measurement, the central axis of the first group of cells 11 may be understood as the central axis of the optical surface 1101 of the first group of cells 11 that is closest to the second group of cells 12, and may be understood as the central axis defined by the structural surface 1102 of the lens 1113 that is closest to the second group of cells 12. When the lowermost lens 1113 of the first group unit 11 and the first carrier body 1121 (e.g., barrel) are mated, the central axis of the first group unit 11 may also be understood as the central axis defined by the inner side of the first carrier body.

Similarly, for ease of measurement, the central axis of the second group of cells 12 may be understood as the central axis of the optical surface 1201 of the second group of cells 12 closest to the first group of cells 11, and may be understood as the central axis defined by the structural surface 1202 of the uppermost lens 1211 closest to the first group of cells 11. When the uppermost lens 1211 of the second group unit 12 and the second carrier body 1221 (e.g., a lens barrel) are mated, the central axis of the second group unit 12 may also be understood as the central axis defined by the inner side of the second carrier body.

In one embodiment, the central axis of the first group of cells 11 and the central axis of the second group of cells 12 may have an inclination angle of less than 0.5 degrees.

Referring again to fig. 1, the first group of cells 11 may further include an extension 1122 extending outwardly from the first carrier body 1121. The extension 1122 may extend outwardly from the exterior of the first carrier body 1121 so as to overlap the receptacle 1222 of the second group element 12. The extension 1122 extends integrally outward from the exterior of the first carrier body 1121. In some embodiments, the extension 1122 may be annular around the first carrier body 1121, extending outwardly from the first carrier body 1121 to form an annular cap peak structure, so as to overlap the receiving portion 1222 of the second group unit 12 by the annular cap peak structure, thereby providing stable support for the first group unit 11.

Referring to fig. 1, an adjustable gap S2 (see an enlarged schematic view of the dashed line portion in fig. 1) may exist between the bottom surface of the extension 1122 of the first group unit 11 and the top surface of the receiving portion 1222 of the second group unit 12. When the first group of cells 11 and the second group of cells 12 are assembled, an adhesive medium may be contained in the adjustable gap to stably fix the first group of cells 11 and the second group of cells 12 so that the relative positions of the two are fixed. The bonding medium is, for example, UV glue, thermosetting glue, UV thermosetting glue, epoxy glue, but the application is not limited thereto. In one embodiment, the bonding medium may be arranged to have a width of 0.05 to 1.5mm in the radial direction. Here, the radial direction refers to a direction perpendicular to the optical axis direction of the lens. For example, in the embodiment shown in fig. 1, the width may be a projected width of the adhesive medium applied in the gap S2 in the horizontal direction.

It should be appreciated that the first group of cells 11 and the second group of cells 12 may be secured by other means, such as thermal welding, ultrasonic welding, laser welding, and the like, as the application is not limited in this respect.

Referring again to fig. 1, the first group of cells 11 may include at least one spacer ring 113, the spacer ring 113 being disposed in cooperation with each of the first lenses 111 to constrain light passing through the first lenses 111 to provide a predetermined light path. The uppermost lens 1111, the intermediate lens 1112, and the lowermost lens 1113 in the first lens 111 are disposed in the first carrier body 1121 from top to bottom along the light path. In the present embodiment, two spacers 113 are provided in the first group unit 11, and are provided between the uppermost Fang Jingpian and the intermediate lens 1112, and between the intermediate lens 1112 and the lowermost lens 1113, respectively. The spacer 113 may also be provided to the first lens 111 in a coated manner.

In one embodiment, the spacer ring 113 may be disposed below the lowermost lens 1113 of the first lens 111 such that an adjustable gap exists between the bottom surface of the spacer ring 113 and the top surface of the uppermost lens 1211 and the receptacle 1222 of the second lens 121 when the first and second group units are assembled.

With further reference to fig. 1, the second group of cells 12 may include at least one spacer ring 123 that is positioned in cooperation with the second lens 121 so as to constrain light passing through the lens and provide a predetermined light path. In the present embodiment, three spacers 123 are provided in the second group unit 12, and are provided on the upper portion of the uppermost lens 1211, between the uppermost Fang Jingpian 1211 and the intermediate lens 1212, and between the intermediate lens 1212 and the lowermost lens 1213 in the second lens 121, respectively. A spacer 123 is disposed on the upper portion of the uppermost lens 1211 in the second lens 121 such that an adjustable gap exists between the bottom surface of the spacer 123 and the top surface of the uppermost Fang Jingpian 1211 and the receptacle 1222.

In the present application, the adjustable gap is set according to the optical characteristics of the first lens and the second lens. By setting and reserving the adjustable gap before assembly, six degrees of freedom adjustment can be achieved with the first group of cells and the second group of cells assembled. In the process of assembling each group unit to form the multi-group lens, the whole optical performance of each lens in the multi-group lens can be adjusted in an active calibration mode, so that the adjustable gap is formed into a curing gap. When multiple groups of lenses are mass produced, the cure gap may be different for each product.

In one embodiment, the size of the cure gap is such that the first group of cells can be tilted at an angle of 0.5 ° or less relative to the second group of cells. It should be appreciated that the above-described tilt angles may include six degrees of freedom of the tiltable angles of the first group of cells relative to the second group of cells in three-dimensional space. The six degrees of freedom are a degree of freedom of movement along three coordinate axes of x, y, and z and a degree of freedom of rotation about the three coordinate axes in a three-dimensional space.

Referring again to fig. 1, the lower portion of the first carrier body 1121 of the first group unit 11, corresponding to the lower one of the first lenses, further has a reinforcing fixing groove 112112 for accommodating the adhesive medium 13 to reinforce and fix the first lens 111, e.g., the lowermost lens 1113, at the bottom end. In one embodiment, the reinforcing fixation groove 112112 may correspond to the outermost first lens 111. For example, in the case where the lenses in the first carrier body 1121 are two lenses (e.g., an upper lens and a lower lens), the reinforcing fixing groove 112112 can reinforce and fix the lower lens. In the case that the number of lenses in the first carrier body 1121 is four, the reinforcement fixing groove 112112 can reinforce and fix the fourth lens at the bottom.

Preferably, in some embodiments, the reinforcing fixing grooves 112112 are symmetrically distributed at the lower end portion of the first carrier body 1121, so as to provide uniform stress to the corresponding first lens 111, and prevent uneven force applied to the first lens 111 when the bonding medium 13 is changed due to environmental influence, for example, uneven stress when the bonding medium 13 is expanded by heat.

The reinforcing fixing groove 112112 can be designed into different shapes according to the requirements, and the cross section of the reinforcing fixing groove is wedge-shaped, triangular, trapezoidal, rectangular and the like. The reinforcing fixing grooves 112112 may be separately provided at intervals, or may be communication grooves, that is, annular grooves are formed integrally, and the cross sections of the annular grooves may be different shapes.

Preferably, the depth of the reinforcement fixation groove 112112 is less than the thickness of the edge of the corresponding lowermost lens, preventing a gap from being present between the reinforcement fixation groove 112112 and the top edge of the lens, such that glue penetrates through the gap into the lens interior.

In the present embodiment and fig. 1, the reinforcing fixing groove 112112 has a trapezoid structure, and four reinforcing fixing grooves 112112 are symmetrically distributed. Of course, in other embodiments of the present application, the reinforcing fixing groove 112112 may have other shapes and other numbers, such as three, five or more, etc., and the present application is not limited thereto.

In one embodiment, the reinforcing fixture groove 112112 may also be an annular structure (not shown) with an annular inner wall that is sloped to facilitate application of the bonding medium 13. That is, the reinforcing fixing groove 112112 may provide a large opening to facilitate the addition of the adhesive medium 13 through, for example, a needle to avoid contamination of the surface of the corresponding first lens 111, and the adhesive medium 13 may flow along an inclined ring-shaped structure to the side edge of the corresponding first lens 111 to be stably fixed from the side edge of the first lens 111.

In one embodiment, the reinforcing fixation groove may have a depth of 0.15mm or greater. In one embodiment, the opening width of the reinforcing fixing groove may be 0.2mm or more. In one embodiment, the wall thickness corresponding to the reinforcing fixation groove may be 0.1mm or more.

In one embodiment, the first carrier body 1121 of the first group unit 11 may include a reinforcing fixing region (not shown) penetrating a sidewall of the first carrier body 1121 for accommodating the adhesive medium 13 to reinforce and fix the first lens 111.

Fig. 3 illustrates a multi-group lens 100 according to another embodiment of the present application, and fig. 4 is an enlarged schematic view illustrating a dotted line portion in fig. 3. As shown in fig. 3 and 4, the multi-group lens 100 may include a first group unit 11 and a second group unit 12.

The first group unit 11 may include a first carrier body 1121 and at least one first lens 111 accommodated in the first carrier body 1121. The first lens 111 may include three lenses, namely, an uppermost lens 1111, a middle lens 1112, and a lowermost lens 1113. The second group unit 12 may include a second carrier body 1221, and at least one second lens 121 housed in the second carrier body 1221. The first lens 121 can include three lenses, namely, an uppermost lens 1211, a middle lens 1212, and a lowermost lens 1213.

The second group of units 12 may further include a receptacle 1222 coupled to the second carrier body 1221 for mating with the first carrier body 1121 of the first group of units 11 for receiving the first carrier body 1121 or the first lens 121 of the first group of units 11. The first group of cells 11 may also include an extension 1122 extending outwardly from the first carrier body 1121 to overlap the receptacle 1222 of the second group of cells 12.

The multi-group lens 100 shown in fig. 3 is substantially the same as the multi-group lens 100 shown in fig. 1 except for the extension 1122 and the receiving portion 1222, and thus, a redundant description of other components is omitted.

As shown in fig. 3 and 4, the extension 1122 of the first carrier body 1121 may include a downwardly projecting tab 11222 and the receptacle 1222 of the second group element 12 includes a downwardly recessed mating slot 12221. When the extension 1122 overlaps the receptacle 1222, the tab 11222 may be positioned within the mating slot 12221, and a gap may exist between the tab 11222 and the mating slot 12221.

In this embodiment, when the first group unit 11 and the second group unit 12 are assembled, an adjustable gap 14 may exist between the outer peripheral surface of the first carrier body 1121 in the first group unit 11 and the inner peripheral surface of the receiving portion 1222 of the second group unit 12, so as to provide a left-right adjustment space for the first group unit 11 and the second group unit 12. An adjustable gap may exist between the bottom surfaces of the lowermost lens 1113 in the first carrier body 1121 and the first lens 111 and the top surface of the uppermost lens 1211 in the second lens 121, thereby providing a space for the first group unit 11 and the second group unit 12 to adjust up and down. By reserving the adjustable gap prior to assembly, six degrees of freedom adjustment space can be provided for the first group of cells and the second group of cells during assembly.

In one embodiment, the mating groove 12221 may receive an adhesive medium 13 therein to secure the first group of cells 11 to the second group of cells 12. The protruding portion 11222 may be formed in an annular structure, and the fitting groove 12221 may also be formed in an annular structure so as to be fitted to each other.

In one embodiment, the width of the mating groove 12221 may be greater than the thickness of the protrusion 11222 of the extension 1122, thereby providing sufficient adjustment space for the first group unit 11 and sufficient accommodation space for the bonding medium 13, so that the first group unit 11 and the second group unit 12 are stably fixed.

Referring to fig. 3 and 4, the upper outer side of the receptacle 1222 also includes an upwardly extending raised boss 12223 for blocking inward or outward flow of the bonding medium 13, thereby avoiding contamination of the interior lens by the bonding medium 13 or affecting the overall appearance.

Further, it is preferable that the top end of the mating wall 12223 located at the outer side is higher than the mating wall 12222 located at the inner side, so that the adhesive medium 13 contained in the upper mating groove 12221 is prevented from overflowing to the outside to secure the neat appearance.

In this embodiment, the lower portion of the first carrier body 1121 of the first group unit 11, corresponding to the lower lens of the first lenses, further has a reinforcing fixing groove 112112 for accommodating the adhesive medium 13 to reinforce and fix the first lens 111, such as the lowermost lens 1113, at the bottom end.

Fig. 5 illustrates a multi-group lens 100 according to yet another embodiment of the present application. As shown in fig. 5, the multi-group lens 100 may include a first group of cells 11 and a second group of cells 12. The first group unit 11 may include a first carrier body 1121 and at least one first lens 111 accommodated in the first carrier body 1121. The first lens 111 may include three lenses, namely, an uppermost lens 1111, a middle lens 1112, and a lowermost lens 1113.

The second group unit 12 may include a second carrier body 1221, and at least one second lens 121 housed in the second carrier body 1221. The first lens 121 can include three lenses, namely, an uppermost lens 1211, a middle lens 1212, and a lowermost lens 1213.

The multi-group lens 100 shown in fig. 5 is substantially the same as the multi-group lens 100 shown in fig. 1 except for the receiving portion and the extending portion, and thus a redundant description of other components is omitted.

In this embodiment, the second group of units 12 may further include a receiving portion 1222E connected to the second carrier body 1221 so as to mate with the first carrier body 1121 of the first group of units 11 for receiving the first carrier body 1121 of the first group of units 11.

The receiving portion 1222E of the second group element 12 is a hollow structure extending inward. The lower end of the first receiving body 1121 extends to the receiving portion 1222E of the second group unit 12, thereby restricting the relative positions of the first group unit 11 and the second group unit 12.

When the first group unit 11 and the second group unit 12 are assembled, a gap exists between the outer peripheral surface of the first carrier body 1121 and the inner peripheral surface of the receiving portion 1222E, which is a side surface of the first carrier body 1121 facing the receiving portion 1222E. As shown in fig. 5, an adhesive medium 13 may be applied into the gap to fix the first group of cells 11 with the second group of cells 12. The first receiving body 1121 may also be fixed to the second group unit 12 by welding, such as laser welding, ultrasonic welding.

Furthermore, with the first group of cells 11 assembled with the second group of cells 12, there may be an adjustable gap between the bottom surfaces of the lowermost lens 1113 in the first carrier body 1121 and the first lens 111 and the top surface of the uppermost Fang Jingpian 1211 in the second lens 121. In the present application, the adjustable gap is set according to the optical characteristics of the first lens and the second lens. By setting and reserving the adjustable gap before assembly, six degrees of freedom adjustment can be achieved with the first group of cells and the second group of cells assembled.

Fig. 6 shows a modified embodiment of the multi-group lens 100 according to the present application, including an enlarged schematic view of a dotted line portion. In this figure, the lens and the barrel are not clearly distinguished to show the relationship between the first group unit and the second group unit in the case of a complete lens.

In this embodiment, the first lens 111 comprises only one lens, i.e. the lens can be considered as the lowermost lens in the first lens 111. The second lens 121 comprises only one lens, i.e. in this embodiment the lens can be considered as the uppermost lens in the second lens 121.

In this embodiment, the bottom surface of the extension 1122 of the first group unit 11 is flat, and the upper surface of the receiving portion 1222 of the second group unit 12 is also flat, excluding the mating groove as shown in fig. 4. The extension 1122 may overlap the receptacle 1222, as shown in the enlarged schematic view of fig. 6, with an adjustable gap between the bottom surface of the extension 1122 and the receptacle 1222.

In one embodiment, an adhesive medium 13 may be received in a gap between the bottom surface of the extension 1122 and the receptacle 1222 to secure the first group element 11 and the second group element 12 to each other. In this embodiment, the fitting adjustment is performed between the bottom surface of the extension portion extending from the side portion of the first receiving body 1121 and the surface of the receiving portion 1222 of the second group 12.

In this embodiment, when the first group unit 11 and the second group unit 12 are assembled, an adjustable gap exists between the first carrier body 1121 and the receiving portion 1222 of the second group unit 12. The adjustable gap includes a gap between a bottom surface of the first carrier body 1121 and a top surface of the receiving portion 1222 and a gap between a side surface of the first carrier body 1121 opposite the receiving portion 1222 in a portion of the first carrier body 1121 overlapping the receiving portion 1222 of the second group unit 12. Furthermore, there may also be adjustable gaps between the bottom surface of the first carrier body 1121 and the top surface of the second lens 121, and between the bottom surface of the first lens 111 and the top surface of the second lens 121.

As shown in fig. 6, the spacer 113 may be disposed below the first lens 111 such that an adjustable gap may exist between the bottom surface of the spacer 113 and the top surface of the second lens 121 with the first group unit 11 assembled with the second group unit 12. The adjustable gap is set according to the optical characteristics of the first lens 111 and the second lens 121. By providing and reserving the adjustable gap before assembly, six degrees of freedom of adjustment space can be provided for the first group unit and the second group unit in the case of assembling the first group unit 11 and the second group unit 12.

In the gap of the overlapping portion of the first carrier body 1121 and the receiving portion 1222 of the second carrier body 1221, an adhesive medium may be applied to fix the first group unit 11 and the second group unit 12 so that the relative positions of the two are fixed. In the process of assembling each group unit to form the multi-group lens, the whole optical performance of each lens in the multi-group lens can be adjusted in an active calibration mode, so that the adjustable gap is formed into a curing gap.

Fig. 7 shows a modified embodiment of the multi-group lens 100 according to the present application, including an enlarged schematic view of a dotted line portion.

In this embodiment, the first lens 111 comprises only one lens, i.e. the lens can be considered as the lowermost lens in the first lens 111. The second lens 121 comprises only one lens, i.e. in this embodiment the lens can be considered as the uppermost lens in the second lens 121. The receptacle 1222 of the second group element 12 is connected to the second receptacle body 1221 and extends into the interior of the second receptacle body 1221 for providing overlap support for the first group element 11 and the first lens 111 and for providing light paths for the second lens 121 within the second carrier body 1221.

In this embodiment, the receiving portion 1222 of the second carrier body 1221 receives the first carrier body 1121 and the first lens 111. In the case of the first group unit 11 and the second group unit 12 being assembled, there may be adjustable gaps between the bottom surface of the first carrier body 1221 and the top surface of the receptacle 1222, between the bottom surface of the first lens 111 and the top surface of the receptacle 1222, and between the bottom surface of the first lens 111 and the top surface of the second lens 121. The adjustable gap is set according to the optical characteristics of the first lens 111 and the second lens 121. By providing and reserving the adjustable gap before assembly, six degrees of freedom of adjustment space can be provided for the first group unit and the second group unit in the case of assembling the first group unit 11 and the second group unit 12.

In the above-described embodiments, the multi-group lens 100 composed of two group units is exemplified as a different structure, it should be understood that in other embodiments, the multi-group lens 100 may be assembled by three or more group units, and the assembly manner may be a combination of different embodiments, not limited to one assembly manner.

Fig. 8 shows an imaging module 1 of a multi-group lens 100 according to a preferred embodiment of the present application, and the imaging module 1 may be an auto-focus imaging module. In one embodiment, the imaging module 1 may be a fixed-focus imaging module. The image capturing module 1 may include a multi-group lens 100, a photosensitive assembly 200 and a driving element 300, wherein the multi-group lens 100 is located on a photosensitive path of the photosensitive assembly 200, so that the photosensitive assembly 200 is sensitized to obtain image information, and the multi-group lens 100 is mounted on the driving element 300, so as to adjust a focal length of the image capturing module 1 by adjusting the multi-group lens 100. The multi-group lens 100 may be a multi-group lens according to various embodiments of the present application. The driving element 300 may be, for example, but not limited to, a voice coil motor, a piezoelectric motor, or the like. The driving element 300 is electrically connected to the photosensitive assembly 200.

In the present embodiment, the photosensitive assembly 200 may include a photosensitive element 201, a circuit board 202, and a mirror base 203. The photosensitive element 201 is electrically connected to the circuit board 202, for example, disposed on the circuit board 202 by surface mounting, and electrically connected to the circuit board 202 by an electrical connection wire. The mirror mount 203 is mounted to the circuit board 202. The driving element 300 is mounted on the lens base 203, so that the multi-group lens 100 is located in the photosensitive path of the photosensitive element 201.

The camera module 1 may further include a filter element 400, where the filter element 400 is mounted on the lens base 203 so as to be located between the multi-group lens 100 and the photosensitive element 201. That is, the light entering from the multi-group lens 100 reaches the photosensitive element 201 after passing through the filtering function of the filtering element 400. The filter element 400 may be, for example, but not limited to, an infrared cut filter, a blue glass filter.

Referring to fig. 9, the multi-group lens 100 may be assembled and applied to different types of camera modules 1, and the camera modules 1 may be applied to an electronic device 2, the electronic device 2 being exemplified by, but not limited to, a smart phone, a wearable device, a computer device, a television, a vehicle, a camera, a monitoring apparatus, and the like. The electronic device 2 may include an electronic device body 3, and the camera module 1 may be mounted on the electronic device body 3, and complete image acquisition and reproduction in cooperation with the electronic device body 3.

The above description is only illustrative of the preferred embodiments of the present application and of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present application is not limited to the specific combination of the above technical features, but also encompasses other technical features formed by any combination of the above technical features or their equivalents without departing from the spirit of the present application. Such as the above-mentioned features and the technical features disclosed in the present application (but not limited to) having similar functions are replaced with each other.

Claims

1. A multi-group lens, comprising:

a first group unit including a first carrying body and at least one first lens accommodated in the first carrying body, and

The second group unit comprises a second bearing body, at least one second lens contained in the second bearing body and a bearing part connected with the second bearing body, and the bearing part is of a hollow structure extending inwards;

Wherein, in the case of the first group unit and the second group unit being assembled, there is an adjustable gap between the first carrying body and the receiving portion, and between a bottom surface of a lowermost lens of the first carrying body and the first lens and a top surface of an uppermost lens of the second lens, by reserving the adjustable gap before the assembly, an adjustment space of six degrees of freedom is provided for the first group unit and the second group unit during the assembly;

A hollow structure of the first receiving body extending from a lower end thereof to the receiving portion, a gap being provided between opposite sides of the first receiving body and the receiving portion, an adhesive medium being applied to the gap, and

The lower end parts of the first bearing bodies of the first group units are symmetrically distributed with reinforcing fixing grooves, and the reinforcing fixing grooves correspond to the position of the bottommost lens in the at least one first lens and are used for accommodating the bonding medium to reinforce and fix the bottommost lens.

2. The multi-group lens as claimed in claim 1, wherein an adjustable gap exists between an outer peripheral surface of the first carrier body and an inner peripheral surface of the socket.

3. The multi-group lens of claim 1, wherein an adjustable gap exists between a bottom surface of the first carrier body and a top surface of the receptacle.

4. A multi-group lens as claimed in claim 3, wherein there is an adjustable gap between the bottom surface of the lowermost lens in the first lens and the top surface of the receptacle in the second group unit.

5. The multi-group lens of claim 1, wherein the first group unit further comprises an extension extending outwardly from the first carrier body, an adjustable gap being present between a bottom surface of the extension and a top surface of the receptacle.

6. The multi-group lens of claim 1, wherein the first group unit comprises at least one spacer ring disposed in cooperation with the first lens to provide a predetermined light path, wherein one of the spacer rings is disposed below a lowermost one of the first lenses, a bottom surface of the one spacer ring having an adjustable gap with an uppermost one of the second lenses and a top surface of the receptacle.

7. The multi-group lens of claim 1, wherein the second group unit comprises at least one spacer ring disposed in cooperation with the second lens to provide a predetermined light path, wherein one of the spacer rings is disposed on an upper portion of an uppermost lens of the second lens, and an adjustable gap exists between a bottom surface of a lowermost lens of the first lens and a top surface of the one spacer ring.

8. The multi-group lens of any of claims 1-7, wherein the overall optical performance of the multi-group lens is adjusted by way of active calibration, the adjustable gap being formed as a curing gap.

9. The multi-group lens of claim 6, wherein the spacer is further disposed between adjacent two of the first lenses.

10. The multi-group lens of claim 7, wherein the spacer is further disposed between two adjacent second lenses.

11. The multi-group lens of claim 5, wherein a gap between a bottom surface of the extension and a top surface of the receptacle accommodates an adhesive medium to secure the first group unit with the second group unit.

12. The multi-group lens as claimed in claim 5, wherein the extension includes a downwardly protruding projection, and the socket includes a downwardly recessed mating groove, the projection being located within the mating groove when the extension overlaps the socket.

13. The multi-group lens as claimed in claim 11, wherein the adhesive medium is arranged to have a width of 0.05-1.5 mm in a radial direction.

14. The multi-group lens as claimed in claim 11, wherein the region of the first mount body corresponding to the mount forms an effective exposure region of the adhesive medium, the exposure region having a width of 0.1mm or more.

15. The multi-group lens of claim 11, wherein the bonding medium is selected from one or more of a UV glue, a thermosetting glue, a UV thermosetting glue, an epoxy glue.

16. The multi-group lens as claimed in claim 1, wherein the first carrier body of the first group unit has a reinforcing fixing area, the reinforcing fixing hole penetrating through a sidewall of the first carrier body for accommodating an adhesive medium to reinforce and fix the first lens.

17. The multi-group lens of claim 8, wherein the central axis of the first group unit is offset from the central axis of the second group unit by 0-15 μm.

18. The multi-group lens according to claim 1, wherein the first group unit and the second group unit are sequentially arranged along the same optical axis direction in a case where the first group unit and the second group unit are assembled.

19. The multi-group lens according to claim 1, wherein an optical axis direction of the first group unit is parallel to an optical axis direction of the second group unit in a case where the first group unit is assembled with the second group unit.

20. The multi-group lens of claim 1, wherein at least one of the first group lens and the second group lens is two or more in number.

21. The utility model provides a group lens's module of making a video recording which characterized in that includes:

the multi-group lens of any one of claims 1 to 20, and

The photosensitive assembly is arranged in the photosensitive path of the photosensitive assembly.

22. The camera module of claim 21, wherein the camera module comprises a drive element to which at least one of the group units of the multi-group lens is mounted, the drive element being mounted to the photosensitive assembly.

23. The camera module of claim 22, wherein the photosensitive assembly comprises a photosensitive element, a circuit board and a lens mount, the photosensitive element is electrically connected to the circuit board, the lens mount is mounted to the circuit board, and the driving element is mounted to the lens mount to form an auto-focus camera module.

24. The camera module of claim 21, wherein the photosensitive assembly comprises a photosensitive element, a circuit board and a lens mount, the plurality of groups of lenses are mounted on the lens mount, the photosensitive element is electrically connected to the circuit board, and the lens mount is mounted on the circuit board to form a fixed focus camera module.

25. The camera module of claim 23 or 24, wherein the camera module comprises a filter element mounted to the lens mount.

26. An electronic device, comprising:

An apparatus main body, and

A camera module according to any one of claims 21 to 25, said camera module enabling the acquisition and reproduction of images in cooperation with said device body.

27. The electronic device of claim 26, wherein the electronic device is any one of a smart phone, a wearable device, a computer device, a television, a vehicle, a camera, a monitoring apparatus.