Camera module stray light detection device

Abstract

The utility model provides a camera module stray light detection device, comprising a first rotating member used for bearing a camera module to be detected, and the first rotating member can drive the camera module to be detected to rotate around a first direction; the first rotating piece is fixedly mounted on the supporting assembly; the supporting assembly is fixedly installed on the second rotating piece, and the second rotating piece can drive the supporting assembly to rotate in the second direction; the light source is arranged above the first rotating piece in the first direction; wherein the first direction is perpendicular to the second direction. The camera module to be tested rotates in the first direction and the second direction through the first rotating piece and the second rotating piece, rotation in different directions is achieved, and stray light testing of the camera module to be tested in multiple angles and multiple positions is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of stray light detection, in particular to a stray light detection device for a camera module. Background Art

[0002] With the rapid development of the smartphone industry in recent years, demand for camera modules has also increased significantly, leading consumers to place higher demands on the imaging performance parameters of camera modules. Stray light, a key parameter in camera evaluation, has a significant impact on image quality.

[0003] Traditional stray light testing methods involve fixing the camera module under test in a dark environment, moving the light source from one side to the other, or fixing the light source in a single direction while rotating the lens and taking pictures at fixed angles. The captured pictures are then used to identify stray light. This single-direction stray light detection method cannot detect stray light from multiple angles and positions of the camera module under test. Utility Model Content

[0004] In view of the above problems, the purpose of the present invention is to provide a camera module stray light detection device that can realize multi-angle and multi-position stray light testing of the camera module.

[0005] To achieve the above-mentioned objectives, on the one hand, the utility model provides a camera module stray light detection device, comprising a first rotating member for carrying a camera module to be tested, and the first rotating member can rotate the camera module to be tested around a first direction; a support assembly, the first rotating member is fixedly mounted on the support assembly; a second rotating member, the support assembly is fixedly mounted on the second rotating member, and the second rotating member can rotate the support assembly around a second direction; a light source is arranged above the first rotating member along the first direction; wherein the first direction is perpendicular to the second direction.

[0006] Further preferably, the first rotating member includes a first rotating disk and a first fixed disk, the first rotating disk rotates around the first direction and is connected to the first fixed disk, the first rotating disk is used to carry the camera module to be tested, and the first fixed disk is fixedly installed on the support assembly.

[0007] Further preferably, a plurality of first angle scale lines are provided on the first rotating disk around the first direction.

[0008] Further preferably, the second rotating member includes a second rotating disk and a second fixed disk, the second rotating disk is connected to the second fixed disk and rotates around the second direction, and the second rotating disk is used to install the supporting assembly.

[0009] Further preferably, a plurality of second angle scale lines are provided on the second rotating disk around the second direction.

[0010] Further preferably, it also includes a mounting frame, a first connecting rod and a second connecting rod, the second rotating member is connected to the mounting frame through the first connecting rod, and the first connecting rod can be moved on the mounting frame along the first direction, and the light source is set on the mounting frame through the second connecting rod.

[0011] Further preferably, the support assembly includes a positioning reference shaft, a fixed plate and a bearing plate, the fixed plate is fixedly connected to the second rotating member through the positioning reference shaft, the bearing plate and the fixed plate are fixed by screws, and the bearing plate is used to fix the first rotating member.

[0012] Further preferably, the positioning reference axis is fixedly connected to the center point of the second rotating member.

[0013] Further preferably, a U-shaped groove is provided on the supporting plate, and the screw portion is arranged in the U-shaped groove.

[0014] Further preferably, it further comprises a module fixing fixture and a test box, wherein the module to be tested is fixedly mounted on the module fixing fixture, the module fixing fixture is fixedly mounted on the test box, and the test box is fixedly mounted on the first rotating member.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] (1) The camera module to be tested rotates in different directions by rotating the first rotating member and the second rotating member in the first direction and the second direction, so as to meet the requirements of stray light testing of the camera module to be tested at multiple angles and multiple positions.

[0017] (2) By setting the first angle scale line and the second angle scale line on the first rotating disk and the second rotating disk respectively, the position and angle of the camera module to be tested can be accurately adjusted in the first direction and the second direction, thereby improving the accuracy of the stray light test.

[0018] (3) By starting a U-shaped groove on the carrier plate of the support assembly and extending the U-shaped groove along the first direction, the position of the camera module to be tested in the first direction is adjusted to ensure that the upper surface of the camera module to be tested is aligned with the positioning reference axis. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the structure of the stray light detection device for the camera module provided by the utility model;

[0021] Figure 2 This is a partial schematic diagram of the camera module stray light detection device provided by the present invention. DETAILED DESCRIPTION

[0022] To better understand the present invention, various aspects of the present invention will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrations of embodiments of the present invention and are not intended to limit the scope of the present invention in any way. Throughout this specification, like reference numerals refer to like elements. The expression "and / or" includes any and all combinations of one or more of the associated listed items.

[0023] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms cannot be understood as limiting the present invention.

[0024] It should also be understood that the terms "comprises," "including," "having," "includes," and / or "comprising," when used in this specification, indicate the presence of the stated features, elements, and / or components, but do not preclude the presence or addition of one or more other features, elements, components, and / or combinations thereof. In addition, when expressions such as "at least one of..." appear after a list of listed features, they modify the entire list of features rather than modifying the individual elements in the list. In addition, when describing embodiments of the present invention, "may" is used to mean "one or more embodiments of the present invention." Furthermore, the term "exemplary" is intended to refer to an example or illustration.

[0025] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art to which the present invention pertains. It should also be understood that terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and will not be interpreted in an idealized or overly formal sense unless explicitly defined herein.

[0026] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] like Figure 1 and Figure 2 As shown, the present application provides a camera module stray light detection device, including a first rotating member 10, for carrying a camera module 100 to be tested, and the first rotating member 10 can rotate around a first direction x with the camera module 100 to be tested; a support assembly 20, the first rotating member 10 is fixedly mounted on the support assembly 20; a second rotating member 30, the support assembly 20 is fixedly mounted on the second rotating member 30, and the second rotating member 30 can rotate around a second direction y with the support assembly 20; a light source 40, arranged above the first rotating member 10 along the first direction x; wherein the first direction x is perpendicular to the second direction y. The camera module 100 to be tested realizes rotation in different directions through the rotation of the first rotating member 10 and the second rotating member 30 in the first direction x and the second direction y, thereby satisfying the stray light test of the camera module 100 to be tested at multiple angles and multiple positions. As shown Figure 1 The first direction x is the optical axis direction of the camera module to be tested, and the second direction y is perpendicular to the optical axis of the camera module to be tested. Of course, the first direction x can also be a direction that has an angle with the optical axis of the camera module to be tested.

[0028] In one embodiment, the first rotating member 10 includes a first rotating disk 11 and a first fixed disk 12. The first rotating disk 11 is connected to the first fixed disk 12 so as to rotate around a first direction x. The first rotating disk 11 is used to carry the camera module 100 to be tested, and the first fixed disk 12 is fixedly mounted on the support assembly 20. That is, the first rotating disk 11 rotates on the first fixed disk 12, and the two can be rotationally connected by a rotating column, a rotating ball or a spherical protrusion structure. By placing the camera module 100 to be tested on the first rotating disk 11, the camera module 100 to be tested can be rotated around the first direction x relative to the first fixed disk 12. Preferably, a plurality of first angle scale lines are provided on the first rotating disk 11 around the first direction x.

[0029] In one embodiment, the second rotating member 30 includes a second rotating disk 31 and a second fixed disk 32. The second rotating disk 31 is connected to the second fixed disk 32 for rotation around the second direction y. The second rotating disk 31 is used to install the support assembly 20. The second rotating disk 31 rotates on the second fixed disk 32, and the two can be rotationally connected by a rotating column, a rotating ball, or a spherical protrusion structure. By placing the support assembly 20 with the first rotating member 10 installed on the second rotating disk 31, the first rotating member 10 can be rotated around the second direction y relative to the second fixed disk 32, and finally the camera module 100 to be tested can be rotated around the second direction y relative to the second fixed disk 32.

[0030] In a specific embodiment, the camera module 100 to be tested is installed on the first rotating disk 11, the first fixed disk 12 is installed on the supporting assembly 20, and the supporting assembly 20 is installed on the second rotating disk 31, that is, the second rotating disk 31 can realize the rotation of the camera module 100 to be tested around the second direction y.

[0031] Preferably, a plurality of second angle scale lines are provided on the second rotating disk 31 around the second direction y. By providing first angle scale lines and second angle scale lines on the first rotating disk 11 and the second rotating disk 31, respectively, the position and angle of the camera module 100 to be tested can be precisely adjusted in the first direction x and the second direction y, thereby improving the accuracy of stray light testing.

[0032] In one embodiment, the system further includes a mounting frame 50, a first connecting rod 60, and a second connecting rod 70. The second rotating member 30 is connected to the mounting frame 50 via the first connecting rod 60, and the first connecting rod 60 is movable along the first direction x on the mounting frame 50. The light source 40 is disposed on the mounting frame 50 via the second connecting rod 70. The first connecting rod 60 is designed to be movable along the first direction x on the mounting frame 50, thereby ensuring that the camera module 100 to be tested can be moved along the first direction x, allowing the operator to adjust the positional relationship between the camera module 100 to be tested and the light source 40 at any time according to actual needs. Specifically, the second fixed plate 32 of the second rotating member 30 is mounted on the mounting frame 50 via the first connecting rod 60.

[0033] In one embodiment, the support assembly 20 includes a positioning reference shaft 21, a fixed plate 22, and a supporting plate 23. The fixed plate 22 is fixedly connected to the second rotating member 30 via the positioning reference shaft 21. The supporting plate 23 is fixed to the fixed plate 22 by screws. The supporting plate 23 is used to securely mount the first rotating member 10. In one specific embodiment, the first fixed disk 12 is mounted on the supporting plate 23, and the fixed plate 22 is mounted on the second rotating disk 31 via the positioning reference shaft 21. The movable connection between the first rotating member 10 and the second rotating member 30 is achieved through the positioning reference shaft 21, the fixed plate 22, and the supporting plate 23 of the support assembly 20.

[0034] In one embodiment, the positioning reference axis 21 is fixedly connected to the center point of the second rotating member 30. The connection point between the support assembly 20 and the second rotating member 30 is set at the center of the second rotating member 30. The positional relationship between the camera module 100 to be tested and the second rotating member 30 is controlled so that the camera module 100 to be tested is symmetrical when rotating about the first direction x, thereby meeting the stray light test accuracy requirements of the camera module 100 to be tested.

[0035] In one embodiment, a U-shaped groove 231 extending along the first direction x is defined on the carrier plate 23, and the screw portion is disposed within the U-shaped groove 231. By defining the U-shaped groove 231 on the carrier plate 23 of the support assembly 20 and extending along the first direction x, the position of the camera module 100 to be tested can be adjusted in the first direction x, ensuring that the upper surface of the camera module 100 to be tested is aligned with the positioning reference axis 21, thereby improving the accuracy of stray light testing of the camera module to be tested.

[0036] In one embodiment, the system further includes a module fixing jig 80 and a test box 90. The camera module 100 to be tested is fixedly mounted on the module fixing jig 80, which is in turn fixedly mounted on the test box 90. The test box 90 is fixedly mounted on the first rotating member 10. The camera module 100 to be tested is mounted on the module fixing jig 80 to ensure the stability of the camera module 100. The test box 90 is used to ensure electrical continuity of the camera module 100 to meet the stray light testing requirements of the camera module 100 to be tested.

[0037] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A camera module stray light detection device, characterized in that: include: A first rotating member (10) is used to carry the camera module to be tested, and the first rotating member (10) can rotate around a first direction with the camera module to be tested; a support assembly (20), wherein the first rotating member (10) is fixedly mounted on the support assembly (20); a second rotating member (30), the supporting assembly (20) being fixedly mounted on the second rotating member (30), and the second rotating member (30) being capable of rotating with the supporting assembly (20) in a second direction; a light source (40) disposed above the first rotating member (10) along the first direction; The first direction is perpendicular to the second direction.

2. The camera module stray light detection device according to claim 1, characterized in that: The first rotating member (10) comprises a first rotating disk (11) and a first fixed disk (12); the first rotating disk (11) is connected to the first fixed disk (12) and rotates around the first direction; the first rotating disk (11) is used to carry the camera module to be tested; and the first fixed disk (12) is fixedly mounted on the supporting assembly (20).

3. The camera module stray light detection device according to claim 2, characterized in that: A plurality of first angle scale lines are arranged on the first rotating disk (11) around the first direction.

4. The camera module stray light detection device according to claim 1, characterized in that: The second rotating member (30) comprises a second rotating disk (31) and a second fixed disk (32); the second rotating disk (31) is connected to the second fixed disk (32) and rotates around the second direction; the second rotating disk (31) is used to install the supporting assembly (20).

5. The camera module stray light detection device according to claim 4, characterized in that: A plurality of second angle scale lines (311) are provided on the second rotating disk (31) around the second direction.

6. The camera module stray light detection device according to claim 1, characterized in that: The camera module stray light detection device further comprises a mounting frame (50), a first connecting rod (60) and a second connecting rod (70); the second rotating member (30) is connected to the mounting frame (50) via the first connecting rod (60), and the first connecting rod (60) can move on the mounting frame (50) along the first direction; and the light source (40) is arranged on the mounting frame (50) via the second connecting rod (70).

7. The camera module stray light detection device according to claim 1, characterized in that: The support assembly (20) includes a positioning reference shaft (21), a fixing plate (22) and a bearing plate (23); the fixing plate (22) is fixedly connected to the second rotating member (30) via the positioning reference shaft (21); the bearing plate (23) is fixed to the fixing plate (22) via screws; and the bearing plate (23) is used for fixing and installing the first rotating member (10).

8. The camera module stray light detection device according to claim 7, characterized in that: The positioning reference shaft (21) is fixedly connected to the center point of the second rotating member (30).

9. The camera module stray light detection device according to claim 8, characterized in that: The supporting plate (23) is provided with a U-shaped groove (231) extending along the first direction, and the screw portion is arranged in the U-shaped groove (231).

10. The camera module stray light detection device according to claim 1, characterized in that: The camera module stray light detection device further comprises a module fixing fixture (80) and a test box (90), wherein the camera module to be tested is fixedly mounted on the module fixing fixture (80), the module fixing fixture (80) is fixedly mounted on the test box (90), and the test box (90) is fixedly mounted on the first rotating member (10).

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