Camera module, method for manufacturing camera module, and method for manufacturing camera module glass
Through the asymmetric shape design of the camera module glass and the coordination of the alignment groove, the problem of misalignment of the directionality of glass assembly in the prior art is solved, and the uniqueness and accuracy of the light filtering direction are achieved.
Patent Information
- Application Number
- CN202410038837.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-11
- Publication Date
- 2025-07-11
AI Technical Summary
There are multiple assembly orientations during installation of the glass of existing camera modules, resulting in the risk of directional misalignment of the filter function.
By defining the glass sheet as multiple groups, the unit areas of each group form an asymmetric shape and are cut into para-type glass sheets to ensure that it has only one assembly direction with the alignment slot of the lens, and is embedded in the alignment slot using the alignment angle to define the light filtering direction.
It effectively avoids the misalignment of the alignment glass sheet in the lens, ensuring the uniqueness and accuracy of the light filtering direction.
Smart Images
Figure CN120294936A_ABST
Abstract
Description
Technical Field
[0001] This application relates to a camera, and particularly to a camera module, a manufacturing method thereof, and a manufacturing method of glass for a camera module. Background Art
[0002] Currently, among existing camera modules, the glass has a symmetric shape, which results in multiple different assembly orientations during the installation of the glass. However, when the glass used in existing camera modules has a light filtering function, the light filtering is directional. Therefore, only one of the above-mentioned multiple assembly orientations is correct, which leads to a risk of misplacement during the installation of the glass.
[0003] Therefore, the applicant believes that the above defects can be improved. Through painstaking research and the application of scientific principles, the applicant finally proposed this application with a reasonable design and effective improvement of the above defects. Summary of the Invention
[0004] This application provides a camera module, a manufacturing method thereof, and a manufacturing method of glass for a camera module, which can effectively improve the defects that may occur in existing camera modules.
[0005] This application discloses a manufacturing method of a camera module, which includes: a glass preparation step, including: a preparation process: providing a filter-type glass sheet and defining the filter-type glass sheet into multiple groups, each group having four unit areas arranged in a matrix; wherein, the four unit areas of each group intersect at a target point; a removal process: removing a predetermined block located in the four unit areas and covering the target point in each group, so that each unit area forms an asymmetric shape; wherein, in each group, the four unit areas with asymmetric shapes are rotationally symmetric by four-fold with respect to the target point; and a slicing process: cutting the filter-type glass sheet so that the multiple unit areas are separated from each other, and each unit area forms an alignment-type glass sheet with an asymmetric shape; wherein, each alignment-type glass sheet has an alignment angle corresponding to the predetermined block; and an installation step: extracting an alignment-type glass sheet and placing it into an alignment groove of a lens along an assembly direction, and the alignment angle is embedded into a corner corresponding to its shape in the alignment groove; wherein, there is only one assembly orientation between the alignment-type glass sheet and the alignment groove along the assembly direction.
[0006] Optionally, in the preparation process, the shapes of the multiple unit areas are the same and each is a rectangle; in the removal process, one corner of each unit area is located in the corresponding predetermined block and is removed, and the area of the asymmetric shape is 0.1% - 49% of the area of the rectangle.
[0007] Optionally, during the preparation process, multiple groups are connected to each other such that the unit areas of the multiple groups are arranged in a matrix.
[0008] Optionally, during the removal process, the removal methods for the predetermined blocks of each group include at least one of a plasma etching method, a deep reactive ion etching method, a chemical wet etching method, a water jet cutting method, a sandblasting cutting method, and a laser cutting method.
[0009] Optionally, during the removal process, the shape of the predetermined block is a circle, an ellipse, a rhombus, or a square.
[0010] Optionally, the lens includes a sensing chip and at least one optical lens that are spaced apart from each other along the assembly direction, and the alignment glass sheet is located between the sensing chip and the at least one optical lens along the assembly direction.
[0011] Optionally, the lens includes a sensing chip and at least one optical lens that are spaced apart from each other along the assembly direction, and the at least one optical lens is located between the alignment glass sheet and the sensing chip along the assembly direction.
[0012] This application further discloses a camera module, which includes: a lens, comprising: a carrier bracket formed with an alignment groove; a sensing chip disposed corresponding to the carrier bracket; and at least one optical lens mounted on the carrier bracket, and the at least one optical lens and the alignment groove are located above the sensing chip; and an alignment glass sheet mounted in the alignment groove of the carrier bracket along an assembly direction; wherein, the alignment glass sheet has an asymmetric shape, and there is only one assembly orientation between the alignment glass sheet and the alignment groove along the assembly direction; wherein, the alignment glass sheet has an alignment angle, which is embedded in a corner corresponding to its shape in the alignment groove.
[0013] Optionally, the asymmetric shape is a pentagon, which has a first edge located at the alignment angle, two second edges respectively connected to both ends of the first edge, and two third edges respectively vertically connected to the two second edges.
[0014] Optionally, the first edge is a straight line, and an obtuse angle is formed between the first edge and any one of the second edges connected thereto.
[0015] Optionally, the first edge is a convex edge, which has a curvature center located on the alignment glass sheet.
[0016] Optionally, the extension lines of the two second edges intersect with each other and enclose a truncated corner area with the first edge, and the first edge is a concave curve, which has a curvature center located outside the truncated corner area.
[0017] Optionally, the extension lines of the two second edges intersect with each other and together with the two third edges enclose a rectangle, and the area of the asymmetric shape is 0.1% to 49% of the area of the rectangle.
[0018] Optionally, the alignment-type glass sheet is a filtering-type glass.
[0019] This application also discloses a method for manufacturing glass for a camera module, which includes: a preparation process: providing a filtering-type glass sheet and defining the filtering-type glass sheet into multiple groups, each group having four unit areas arranged in a matrix; wherein, the four unit areas of each group intersect at a target point; a removal process: removing a predetermined block located in the four unit areas and covering the target point in each group, so that each unit area forms an asymmetric shape; wherein, in each group, the four unit areas with asymmetric shapes are rotationally symmetric by four with respect to the target point; and a slicing process: cutting the filtering-type glass sheet so that the multiple unit areas are separated from each other, and each unit area forms an alignment-type glass sheet with an asymmetric shape; wherein, each alignment-type glass sheet has an alignment angle corresponding to the predetermined block.
[0020] Optionally, in the preparation process, the shapes of the multiple unit areas are the same and each is a rectangle; in the removal process, one corner of each unit area is located in the corresponding predetermined block and is removed, and the area of the asymmetric shape is 0.1% to 49% of the area of the rectangle.
[0021] Optionally, in the preparation process, the multiple groups are connected to each other so that the unit areas of the multiple groups are arranged in a matrix.
[0022] Optionally, in the removal process, the removal method of the predetermined block in each group includes at least one of a plasma etching method, a deep reactive ion etching method, a chemical wet etching method, a waterjet cutting method, a sandblasting cutting method, and a laser cutting method.
[0023] Optionally, in the removal process, the shape of the predetermined block is a circle, an ellipse, a rhombus, or a square.
[0024] In summary, the camera module, its manufacturing method, and the method for manufacturing glass for a camera module disclosed in this application can, through the cooperation of the alignment-type glass sheet and the alignment groove, limit the light filtering direction of the alignment-type glass sheet located within the lens, thereby effectively preventing the alignment-type glass sheet from being misplaced within the lens.
[0025] To further understand the features and technical content of this application, please refer to the following detailed description and drawings related to this application. However, these descriptions and drawings are only used to illustrate this application and do not impose any limitation on the scope of protection of this application. Description of the Drawings
[0026] Figure 1 It is a schematic flowchart of the method for manufacturing a camera module according to an embodiment of this application.
[0027] Figure 2 For Figure 1 a schematic diagram of the preparation process in
[0028] Figure 3 For Figure 1 a schematic diagram of the removal process in
[0029] Figure 4 For Figure 1 a schematic diagram of the slicing process in
[0030] Figure 5 For Figure 1 a schematic diagram of the installation step (1) in
[0031] Figure 6 For Figure 1 a schematic diagram of the installation step (2) in
[0032] Figure 7 It is a schematic cross-sectional view of a camera module according to an embodiment of this application.
[0033] Figure 8 It is a schematic cross-sectional view of another aspect of a camera module according to an embodiment of this application.
[0034] Figure 9 It is a schematic diagram (1) of a registration type glass sheet according to an embodiment of this application.
[0035] Figure 10 It is a schematic diagram (2) of a registration type glass sheet according to an embodiment of this application.
[0036] Figure 11 It is a schematic diagram (3) of a registration type glass sheet according to an embodiment of this application. Detailed Embodiments
[0037] The following is to illustrate the embodiments of the present application regarding "a camera module, its manufacturing method, and a glass manufacturing method for a camera module" through specific specific embodiments. Those skilled in the art can understand the advantages and effects of the present application from the content disclosed in this specification. The present application can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present application. Additionally, the drawings of the present application are only for simple schematic illustration and are not drawn according to actual dimensions. The following embodiments will further elaborate on the related technical content of the present application, but the disclosed content is not intended to limit the protection scope of the present application.
[0038] It should be understood that although terms such as "first", "second", "third", etc. may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. Additionally, the term "or" used herein should, depending on the actual situation, possibly include any one or a combination of multiple of the associated listed items.
[0039] Please refer to Figures 1 to 11 as shown, which is an embodiment of the present application. As Figure 1 shown, this embodiment discloses a camera module manufacturing method S100, which sequentially includes (or implements): a glass preparation step S110 and an installation step S120, for manufacturing a camera module 100. Among them, the glass preparation step S110 can also be referred to as a glass manufacturing method for a camera module.
[0040] It should be noted first that the glass preparation step S110 is described in this embodiment in combination with the installation step, but the present application is not limited thereto. For example, in other embodiments not shown in the present application, the glass preparation step S110 (or the glass manufacturing method for the camera module) can also be implemented independently or in combination with other steps.
[0041] The glass preparation step S110 sequentially includes (or implements): a preparation process S111, a removal process S112, and a slicing process S113. Among them, in the following, this embodiment sequentially introduces the multiple processes S111 - S113 of the glass preparation step S110, but the present application is not limited thereto. For example, in other embodiments not shown in the present application, the above multiple processes S111 - S113 of the glass preparation step S110 can be increased, decreased, or adjusted according to design requirements.
[0042] The preparation process S111: As Figure 1 and Figure 2As shown, a filter glass sheet 1a is provided, and the filter glass sheet 1a is defined as a plurality of groups 11a, each of the groups 11a having four unit regions 12a arranged in a matrix. Among them, the shape of the filter glass sheet 1a is described as a square in this embodiment, and the shapes of the plurality of unit regions 12a are the same and each is a rectangle, but the present application is not limited thereto. For example, in other embodiments not shown in the present application, the shape of the filter glass sheet 1a may also be circular.
[0043] More specifically, in this embodiment, the plurality of groups 11a of the filter glass sheet 1a are connected to each other so that the unit regions 12a of the plurality of groups 11a are arranged in a matrix, and the four unit regions 12a of each group 11a intersect at a target point 13a, but the present application is not limited thereto. For example, in other embodiments not shown in the present application, there may be a gap between the plurality of groups 11a of the filter glass sheet 1a; or, the unit regions 12a of the plurality of groups 11a may also be arranged in an interleaved manner.
[0044] The removal process S112: As Figure 1 and Figure 3 shown, in each of the groups 11a, a predetermined block 14a located in the four unit regions 12a and covering the target point 13a is removed, so that each unit region 12a forms an asymmetric shape. In this embodiment, the removal method of the predetermined block 14a of each group 11a includes at least one of a plasma etching method, a deep reactive ion etching (DRIE) method, a chemical wet etching method, a waterjet cutting method, a sandblasting cutting method, and a laser cutting method, but the present application is not limited thereto.
[0045] Furthermore, within each of the groups 11a, the four unit regions 12a each having the asymmetric shape are rotationally symmetric by four-fold with respect to the target point 13a. Accordingly, the shape of the predetermined block 14a is also restricted; that is, the shape of the predetermined block 14a is preferably also rotationally symmetric by four-fold with respect to the target point 13a. For example, the predetermined block 14a may be a circle, an ellipse, a rhombus, or a square. In addition, the plurality of predetermined blocks 14a respectively removed from the plurality of groups 11a have the same shape in this embodiment, but the present application is not limited thereto. For example, in other embodiments not shown in the present application, the plurality of predetermined blocks 14a may also include at least two different shapes according to design requirements.
[0046] Further, one corner of each unit region 12a is located corresponding to the predetermined block 14a and removed, and the area of the asymmetric shape (that is, the area of the unit region 12a after implementing the removal process S112) is 0.1% to 49% of the area of the rectangle (that is, the area of the unit region 12a before implementing the removal process S112).
[0047] The slicing process S113: As Figure 1 , Figure 3 , and Figure 4 shown, cut the filter glass sheet 1a so that the plurality of unit regions 12a are separated from each other, and each unit region 12a forms an alignment glass sheet 1 having the asymmetric shape. Wherein, each alignment glass sheet 1 is a filter glass and has an alignment chamfer 14 corresponding to the predetermined block 14a.
[0048] Accordingly, the alignment glass sheet 1 has a single installation direction by having the asymmetric shape in this embodiment, and it is unique in combination with its own light filtering direction. That is, any glass sheet without a light filtering function is different from the alignment glass sheet 1 (or the filter glass sheet 1a) described in the glass preparation step S110 of this embodiment. Furthermore, the above content generally describes the glass preparation step S110. Next, the content of applying the plurality of alignment glass sheets 1 manufactured by the glass preparation step S110 to the installation step S120 is introduced.
[0049] The installation step S120: As Figure 1 , and Figures 5 to 8As shown, a pair-alignment type glass sheet 1 is picked up and placed into an alignment groove 231 of a lens 2 along an assembling direction D, and a pair-alignment angle 14 is embedded into a corner 232 corresponding to its shape in the alignment groove 231. Among them, there is only one assembling orientation between the pair-alignment type glass sheet 1 and the alignment groove 231 along the assembling direction D. Furthermore, the picking-up method of the pair-alignment type glass sheet 1 is implemented by a vacuum suction nozzle in this embodiment, but the present application is not limited thereto.
[0050] Accordingly, in this embodiment, the camera module manufacturing method S100 can, through the cooperation of the pair-alignment type glass sheet 1 and the alignment groove 231, define the light filtering direction of the pair-alignment type glass sheet 1 located within the lens 2, thereby effectively preventing the pair-alignment type glass sheet 1 from being misplaced within the lens 2.
[0051] It should be additionally noted that the lens 2 includes a sensing chip 21 and at least one optical lens 22 that are spaced apart from each other along the assembling direction D, but the specific structure of the lens 2 can be adjusted and changed according to design requirements. Only two possible structures are listed below for illustration, but the present application is not limited thereto. As Figure 7 shown, the pair-alignment type glass sheet 1 is located between the sensing chip 21 and at least one of the optical lenses 22 along the assembling direction D; or, as Figure 8 shown, at least one of the optical lenses 22 is located between the pair-alignment type glass sheet 1 and the sensing chip 21 along the assembling direction D.
[0052] In addition, the above content generally describes the implementation process of the camera module manufacturing method S100 in this embodiment. Next, the specific structure of the camera module 100 manufactured by the camera module manufacturing method S100 will be generally introduced from the perspective of the structure. Accordingly, some technical features of the camera module 100 can refer to the content of the above camera module manufacturing method S100, but the present application is not limited thereto.
[0053] As Figures 6 to 9 shown, the camera module 100 includes a lens 2 and a pair-alignment type glass sheet 1 mounted on the lens 2 along the assembling direction D. Among them, the lens 2 includes a carrier bracket 23, a sensing chip 21 provided corresponding to the carrier bracket 23, and at least one optical lens 22 mounted on the carrier bracket 23. Furthermore, in this embodiment, the carrier bracket 23 can be composed of multiple components. The carrier bracket 23 is formed with an alignment groove 231, and at least one of the optical lenses 22 and the alignment groove 231 are located above the sensing chip 21.
[0054] More specifically, the carrying bracket 23 can adjust the position of the alignment groove 231 formed thereby according to design requirements; for example, as Figure 6 shown, the alignment groove 231 is located between the sensing chip 21 and at least one of the optical lenses 22 along the assembly direction D, but the present application is not limited thereto. That is to say, at least one of the optical lenses 22 can be located between the alignment groove 231 and the sensing chip 21 along the assembly direction D.
[0055] As Figures 6 to 9 shown, the alignment glass sheet 1 in this embodiment is a filtering glass and has an asymmetric shape. Among them, the asymmetric shape is illustrated by generally being a pentagon, and the asymmetric shape has a first edge 11, two second edges 12 respectively connected to both ends of the first edge 11, and two third edges 13 respectively perpendicularly connected to the two second edges 12, but the present application is not limited thereto. Among them, the extension lines of the two second edges 12 intersect with each other and together with the two third edges 13 enclose and define a rectangle, and the area of the asymmetric shape is 0.1% - 49% of the area of the rectangle.
[0056] In this embodiment, the specific shape of the first edge 11 of the asymmetric shape can be adjusted and changed according to design requirements, and the present application does not limit this here. For example, as Figure 9 shown, the first edge 11 is a straight line, and the first edge 11 forms an obtuse angle with any one of the second edges 12 connected thereto. Or, as Figure 10 shown, the first edge 11 is a convex edge, which has a curvature center C located on the alignment glass sheet 1. Or, as Figure 11 shown, the extension lines of the two second edges 12 intersect with each other and together with the first edge 11 enclose a truncated corner region R, and the first edge 11 is a concave curve, which has a curvature center C located outside the truncated corner region R.
[0057] Furthermore, the alignment glass sheet 1 is mounted in the alignment groove 231 of the carrying bracket 23 along the assembly direction D. As Figure 6 shown, the alignment glass sheet 1 includes an alignment angle 14 formed with the first edge 11, and the alignment glass sheet 1 is inserted into a corner 232 corresponding to its shape in the alignment groove 231 with the alignment angle 14, so that there is only one assembly orientation between the alignment glass sheet 1 and the alignment groove 231 along the assembly direction D, thereby effectively preventing the alignment glass sheet 1 from being misplaced within the lens 2.
[0058] Technical effects of the present application
[0059] In summary, the camera module, the manufacturing method thereof, and the glass manufacturing method of the camera module disclosed in the present application can define the light filtering direction of the alignment glass sheet located within the lens through the cooperation of the alignment glass sheet and the alignment groove, thereby effectively preventing the misplacement of the alignment glass sheet within the lens.
[0060] The content disclosed above is only a preferred and feasible embodiment of the present application, and does not limit the patent scope of the present application. Therefore, all equivalent technical changes made by using the content of the specification and drawings of the present application are included in the patent scope of the present application.
Claims
1. A method for manufacturing a camera module, characterized in that, The method for manufacturing the camera module includes: A glass preparation step, including: A preparation process: providing a filter glass sheet and defining the filter glass sheet into a plurality of groups, each group having four unit areas arranged in a matrix; wherein, the four unit areas of each group intersect at a target point; A removal process: removing a predetermined block located in the four unit areas of each group and covering the target point in each group, so that each unit area forms an asymmetric shape; wherein, in each group, the four unit areas with the asymmetric shape are rotationally symmetric by fourfold with respect to the target point; and A slicing process: cutting the filter glass sheet so that the plurality of unit areas are separated from each other, and each unit area forms an alignment glass sheet with the asymmetric shape; wherein, each alignment glass sheet has an alignment angle corresponding to the predetermined block; and An installation step: extracting one of the alignment glass sheets and placing it into an alignment groove of a lens along an assembly direction, and the alignment angle is embedded into a corner corresponding to its shape in the alignment groove; wherein, there is only one assembly orientation between the alignment glass sheet and the alignment groove along the assembly direction.
2. The method for manufacturing a camera module according to claim 1, wherein In the preparation process, the shapes of the plurality of unit areas are the same and each is a rectangle; in the removal process, one corner of each unit area is located in the corresponding predetermined block and is removed, and the area of the asymmetric shape is 0.1% to 49% of the area of the rectangle.
3. The method for manufacturing a camera module according to claim 1, wherein In the preparation process, the plurality of groups are connected to each other so that the unit areas of the plurality of groups are arranged in a matrix.
4. The method for manufacturing a camera module according to claim 1, wherein, In In the removal process, the removal method of the predetermined block of each group includes at least one of a plasma etching method, a deep reactive ion etching method, a chemical wet etching method, a water jet cutting method, a sandblasting cutting method, and a laser cutting method.
5. The method for manufacturing a camera module according to claim 1, wherein, In the removal process, the shape of the predetermined block is a circle, an ellipse, a rhombus, or a square.
6. The method for manufacturing a camera module according to claim 1, wherein The lens includes a sensing chip and at least one optical lens spaced apart from each other along the assembly direction, and the alignment glass sheet is located between the sensing chip and at least one of the optical lenses along the assembly direction.
7. The method for manufacturing a camera module according to claim 1, wherein The lens includes a sensing chip and at least one optical lens spaced apart from each other along the assembly direction, and at least one of the optical lenses is located between the alignment glass sheet and the sensing chip along the assembly direction.
8. A camera module, characterized in that, The camera module includes: A lens, including: A carrier bracket formed with an alignment groove; A sensing chip disposed corresponding to the carrier bracket; and At least one optical lens mounted on the carrier bracket, and at least one of the optical lenses and the alignment groove are located above the sensing chip; and A pair of alignment glass sheets are installed in the alignment grooves of the carrier bracket along an assembly direction; wherein, the alignment glass sheets have an asymmetric shape, and there is only one assembly orientation between the alignment glass sheets and the alignment grooves along the assembly direction; wherein, the alignment glass sheets have an alignment angle, which is embedded in a corner corresponding to its shape in the alignment grooves.
9. The camera module according to claim 8, characterized in that, The asymmetric shape is a pentagon, which has a first edge located at the alignment angle, two second edges respectively connecting the two ends of the first edge, and two third edges respectively vertically connecting the two second edges.
10. The camera module according to claim 9, characterized in that, The first edge is a straight line, and an obtuse angle is formed between the first edge and any one of the second edges connected thereto.
11. The camera module according to claim 9, characterized in that, The first edge is a convex edge, which has a center of curvature located on the alignment glass sheet.
12. The camera module according to claim 9, wherein The extension lines of the two second edges intersect with each other and enclose a truncated corner area with the first edge. The first edge is a concave curve, which has a center of curvature located outside the truncated corner area.
13. The camera module according to claim 9, wherein The extension lines of the two second edges intersect with each other and jointly enclose and define a rectangle with the two third edges, and the area of the asymmetric shape is 0.1% to 49% of the area of the rectangle.
14. The camera module according to claim 8, wherein, The alignment glass sheet is a filter glass.
15. A manufacturing method of glass for a camera module, characterized in that, The method for manufacturing the glass of the camera module includes: A preparation process: providing a filter glass sheet, and defining the filter glass sheet into a plurality of groups, each group having four unit areas arranged in a matrix; wherein, the four unit areas of each group intersect at a target point. A removal process: removing a predetermined block located in the four unit areas and covering the target point in each group, so that each unit area forms an asymmetric shape; wherein, in each group, the four unit areas having the asymmetric shape are rotationally symmetric about the target point by fourfold; and A slicing process: cutting the filter glass sheet, so that the plurality of unit areas are separated from each other, and each unit area forms an alignment glass sheet having the asymmetric shape; wherein, each alignment glass sheet has an alignment angle corresponding to the predetermined block.
16. The method for manufacturing glass of a camera module according to claim 15, characterized in that, In the preparation process, the shapes of the plurality of unit areas are the same and each is a rectangle; in the removal process, one corner of each unit area is located in the corresponding predetermined block and is removed, and the area of the asymmetric shape is 0.1% to 49% of the area of the rectangle.
17. The method for manufacturing glass of a camera module according to claim 15, characterized in that, In the preparation process, the plurality of groups are connected to each other, so that the unit areas of the plurality of groups are arranged in a matrix.
18. The manufacturing method of the glass of the camera module according to claim 15, characterized in that, In In the removal process, the removal method of the predetermined block of each group includes at least one of a plasma etching method, a deep reactive ion etching method, a chemical wet etching method, a waterjet cutting method, a sandblasting cutting method, and a laser cutting method.
19. The manufacturing method of the glass of the camera module according to claim 15, characterized in that, In the removal process, the shape of the predetermined block is a circle, an ellipse, a rhombus or a square.