A camera module three-posture test device
By designing the three-pose testing equipment of the camera module, the three-pose and long-focus testing are achieved using the rotation mechanism and the adjustment mechanism, the problem that existing equipment cannot perform long-focus testing at the same time is solved, and standard three-pose testing data is provided, which improves the quality and performance of the camera module.
Patent Information
- Application Number
- CN202420823583.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-04-19
AI Technical Summary
Existing camera module testing equipment cannot perform far and near focus tests at the same time, and cannot provide standard three-pose test data, which affects the correction of camera modules.
A three-pose testing equipment for camera modules is designed, including a rotating mechanism, a front-view light source plate, an upper-view light source plate, a lower-view light source plate and its corresponding adjustment mechanism. The rotation mechanism drives the camera module to rotate, and the spacing between the light source plate and the camera module is adjusted through the adjustment mechanism to realize the three-pose and far-near-focus test.
The camera module is tested in three postures and far and near focus, and the three postures and far and near focus AF code value is measured, providing standard three posture test data, which helps the correction of the camera module, thereby improving the quality and performance of the camera module.
Smart Images
Figure CN222736198U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of camera modules, and in particular relates to a camera module three-posture testing device. Background Art
[0002] With the continuous upgrading of camera module technology applications, the camera module testing needs to be synchronized according to the end consumers' mobile phone usage habits. Testing the three postures of the camera module during the production process and collecting different posture test data for correction will help ensure that the camera module can work properly in various situations and provide high-quality, stable and reliable images. However, the current testing equipment in the industry is limited and does not have the ability to test both the near and far focus distances at the same time, and cannot provide standard three-posture test data, which affects the correction work of the camera module. Utility Model Content
[0003] In order to overcome the deficiencies of the above-mentioned prior art, the purpose of the utility model is to provide a camera module three-posture testing device, which can provide standard three-posture test data, assist in the correction work of the camera module, and thus improve the quality and performance of the camera module.
[0004] To achieve the above-mentioned purpose, the technical solution of the utility model is a three-posture testing equipment for a camera module, comprising a frame, a fixed frame is provided in the frame, a rotating mechanism for placing and driving the camera module to be tested to rotate is installed on the fixed frame; a front view light source plate, an upper view light source plate, and a lower view light source plate are respectively provided in front of, above, and below the rotating mechanism, and a front view light source distance adjustment mechanism, an upper view light source distance adjustment mechanism, and a lower view light source distance adjustment mechanism are provided on the frame for respectively adjusting the distance between the front view light source plate, the upper view light source plate, the lower view light source plate and the camera module to be tested.
[0005] As one of the embodiments, the rotating mechanism includes a rotating motor, a rotating shaft and a supporting plate for placing the camera module to be tested, wherein rotating shafts are provided at both ends of the supporting plate, and the rotating shaft at one end is connected to the output shaft of the rotating motor; the rotating shaft is mounted on the fixed frame through a bearing.
[0006] As one of the implementation modes, a teleconverter is arranged above the carrying plate, the teleconverter is mounted on the mounting plate, and two ends of the mounting plate are respectively fixed to the carrying plate through vertical plates.
[0007] As one of the implementation modes, each of the vertical plates is provided with a slide groove extending in the vertical direction, and both ends of the mounting plate are slidably mounted in the corresponding slide grooves respectively.
[0008] As one of the embodiments, the front view light source distance adjustment mechanism, the upper view light source distance adjustment mechanism, and the lower view light source distance adjustment mechanism all include two groups of screw rod assemblies, which are respectively arranged on both sides of the corresponding light source board and connected to the two ends of the corresponding light source board, and the two groups of screw rod assemblies are connected through a synchronization assembly.
[0009] As one of the embodiments, the screw assembly includes a screw and a screw nut threadedly connected to the screw, the screw is arranged vertically to the corresponding light source board, and the screw nut is connected to the corresponding light source board; the screws of the two groups of screw assemblies are connected through the synchronization assembly.
[0010] As one of the implementation modes, a rotating handle is provided at the end of one of the screws in the two screw assemblies.
[0011] As one of the implementation modes, the synchronization assembly includes a synchronization wheel and a synchronization belt, the ends of the screw rods of the two sets of screw rod assemblies are both provided with the synchronization wheel, and the synchronization wheels on both sides of the light source panel are connected through the synchronization belt transmission.
[0012] As one of the embodiments, the front view light source distance adjustment mechanism, the upper view light source distance adjustment mechanism, and the lower view light source distance adjustment mechanism also include two groups of guide components, which are respectively arranged on both sides of the corresponding light source board and connected to the two ends of the corresponding light source board.
[0013] As one of the implementation modes, the guide assembly includes a slide rail and a slider slidably mounted on the slide rail, the slide rail is arranged parallel to the lead screw, and the slider is connected to the corresponding light source panel.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] The utility model drives the camera module to be tested to rotate through a rotating mechanism, and respectively adjusts the distances between the front view light source board, the upper view light source board, the lower view light source board and the camera module to be tested through the front view light source distance adjustment mechanism, the upper view light source distance adjustment mechanism and the lower view light source distance adjustment mechanism, so as to realize three-posture and near and far focus tests on the camera module, and simultaneously measure the near and far focus AF code values of the three postures, and can provide standard three-posture test data, which is helpful for the correction work of the camera module, thereby improving the quality and performance of the camera module. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 A schematic diagram of the structure of a camera module three-posture test device provided by an embodiment of the utility model;
[0018] Figure 2 A schematic diagram of the structure of a camera module three-posture test device provided by an embodiment of the utility model;
[0019] Figure 3 A schematic diagram of the structure of a camera module three-posture test device provided by an embodiment of the utility model;
[0020] Figure 4 A schematic diagram of the structure of a camera module three-posture test device provided by an embodiment of the utility model;
[0021] In the figure: 1. frame; 2. fixed frame; 3. rotating mechanism; 4. front view light source board; 5. upper view light source board; 6. lower view light source board; 7. front view light source distance adjustment mechanism; 8. upper view light source distance adjustment mechanism; 9. lower view light source distance adjustment mechanism; 10. rotating motor; 11. bearing plate; 12. teleconverter; 13. mounting plate; 14. lead screw; 15. lead screw nut; 16. rotating handle; 17. synchronous wheel; 18. synchronous belt; 19. slide rail; 20. slider; 21. caster. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0024] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the present utility model, unless otherwise specified, "plurality" means two or more.
[0025] Figure 1-Figure 4 As shown, this embodiment provides a three-posture test equipment for a camera module, including a frame 1, a fixed frame 2 is provided in the frame 1, and a rotating mechanism 3 for placing and driving the camera module to be tested to rotate is installed on the fixed frame 2; a front view light source plate 4, an upper view light source plate 5, and a lower view light source plate 6 are respectively provided in front of, above, and below the rotating mechanism 3, and a front view light source distance adjustment mechanism 7, an upper view light source distance adjustment mechanism 8, and a lower view light source distance adjustment mechanism 9 are provided on the frame 1 for respectively adjusting the distance between the front view light source plate 4, the upper view light source plate 5, the lower view light source plate 6 and the camera module to be tested.
[0026] In this embodiment, the camera module to be tested is driven to rotate by the rotating mechanism 3, and the distances between the front light source board 4, the upper light source board 5, the lower light source board 6 and the camera module to be tested are adjusted respectively by the front light source distance adjustment mechanism 7, the upper light source distance adjustment mechanism 8, and the lower light source distance adjustment mechanism 9, so as to perform three-posture and near-far focus tests on the camera module, and at the same time measure the three-posture near-far focus AF (auto focus) code values, which can provide standard three-posture test data, help the correction work of the camera module, and thus improve the quality and performance of the camera module.
[0027] like Figure 1-Figure 2 As shown, the front view light source panel 4 is vertically arranged to be located in front of the rotating mechanism 3, and the upper view light source panel 5 and the lower view light source panel 6 are horizontally arranged and are respectively located above and below the rotating mechanism 3; the rotating mechanism 3 can drive the camera module to be tested to rotate 0°, 90°, and 180°, which can meet the test requirements of the product in three postures: vertically upward, horizontally forward, and vertically downward. In each posture, the distance between the light source panel and the camera module is adjusted by the corresponding light source distance adjustment mechanism, so as to measure the AF code value data at the two distances of far focus and near focus. After the far and near focus tests of the three postures are completed, it is rotated 180° to reset.
[0028] To refine the above embodiment, the rotating mechanism 3 includes a rotating motor 10, a rotating shaft, and a carrier plate 11 for placing the camera module to be tested. The two ends of the carrier plate 11 are provided with rotating shafts, and the rotating shaft at one end is connected to the output shaft of the rotating motor 10; the rotating shaft is installed on the fixing frame 2 through a bearing. The rotating motor 10 drives the rotating shaft to rotate, thereby driving the carrier plate 11 and the camera module to be tested thereon to rotate, meeting the three posture test requirements of the camera module.
[0029] In this embodiment, the fixed frame 2 is arranged at the middle position in the frame 1, and the fixed frame 2 includes a fixed plate and a bracket; an avoidance area is arranged on the fixed plate to avoid affecting the rotation of the rotating mechanism 3, and brackets are arranged on the fixed plates on both sides of the avoidance area, and the rotating shaft is rotatably installed on the corresponding bracket through a bearing.
[0030] Furthermore, the carrier plate 11 is also provided with a linear guide rail, the arrangement direction of which is perpendicular to the front light source board 4 , and a fixture on which the camera module to be tested is placed can be slidably installed on the linear guide rail.
[0031] The above embodiment is optimized, and a teleconverter 12 is arranged above the carrier plate 11, and the teleconverter 12 is mounted on a mounting plate 13, and both ends of the mounting plate 13 are fixed to the carrier plate 11 through vertical plates. The focal length of the lens can be changed by the teleconverter to increase the measuring distance range. When testing the AF (auto focus) code value of the camera module, first test the far focus code value in a vertical upward posture, then move to the near focus position to test the near focus code value, and after the test is completed, run to the next posture to test the far focus AF code value, until the far focus and near focus tests of the three postures are completed and the AF code value data are collected.
[0032] Specifically, a mounting hole is provided on the mounting plate 13, and the teleconverter 12 is installed in the mounting hole, and a plurality of threaded holes are arranged around the mounting hole at intervals, and a screw is threadedly connected in each of the threaded holes, and the nut of the screw is at least partially buckled on the edge of the top surface of the teleconverter 12 to ensure that the teleconverter 12 will not fall off during the rotation process. In one embodiment, if Figure 1 As shown, the periphery of the teleconverter 12 is fastened to the mounting plate 13 by four screws evenly arranged.
[0033] Furthermore, each of the vertical plates is provided with a slide groove extending in the vertical direction, and the two ends of the mounting plate 13 are slidably mounted in the corresponding slide grooves. By slidingly connecting the mounting plate 13 with the vertical plate, the distance between the teleconverter 12 and the camera module to be tested can be adjusted. In one embodiment, two slide grooves are provided on each vertical plate, and each section of the mounting plate 13 is provided with two threaded holes, and the two threaded holes correspond to the positions of the two slide grooves, and the mounting plate 13 is fixed to the vertical plate by passing a screw through the corresponding slide groove and connecting it with the corresponding threaded hole.
[0034] In this embodiment, the structures of the front view light source distance adjustment mechanism 7, the upper view light source distance adjustment mechanism 8, and the lower view light source distance adjustment mechanism 9 are the same, and the only difference is the arrangement position and direction.
[0035] To refine the above embodiment, the front view light source distance adjustment mechanism 7, the upper view light source distance adjustment mechanism 8, and the lower view light source distance adjustment mechanism 9 all include two groups of screw rod 14 assemblies, and the two groups of screw rod 14 assemblies are respectively arranged on both sides of the corresponding light source board and connected to both ends of the corresponding light source board, and the two groups of screw rod 14 assemblies are connected through a synchronization assembly. In this embodiment, the corresponding light source board is driven to move by the screw rod 14 assemblies on both sides, and the screw rod 14 assemblies on both sides of the light source board are ensured to move synchronously by the synchronization assembly, thereby adjusting the distance between the corresponding light source board and the camera module to be tested. Figure 1 and Figure 2 As shown, the left and right sides of the front view light source panel 4 are provided with screw rod 14 assemblies, and the screw rod 14 assemblies on both sides are connected by a synchronization assembly; the left and right sides of the upper view light source panel 5 are provided with screw rod 14 assemblies, and the screw rod 14 assemblies on both sides are connected by another synchronization assembly; the left and right sides of the lower view light source panel 6 are provided with screw rod 14 assemblies, and the screw rod 14 assemblies on both sides are connected by another synchronization assembly.
[0036] Furthermore, the screw rod 14 assembly includes a screw rod 14 and a screw rod nut 15 threadedly connected to the screw rod 14, the screw rod 14 is arranged vertically with the corresponding light source board, and the screw rod nut 15 is connected with the corresponding light source board; the screw rods 14 of the two sets of screw rod 14 assemblies are connected through the synchronization assembly. The screw rod 14 rotates to drive the screw rod nut 15 to move linearly, and the screw rod nut 15 can drive the light source board to move linearly, thereby adjusting the distance between the corresponding light source board and the camera module to be tested.
[0037] In one embodiment, a rotating handle 16 is provided at the end of one of the two sets of screw rods 14. In this embodiment, the rotating handle 16 can be fixed at the end of the screw rod 14, and the screw rod 14 can be driven to rotate by rotating the rotating handle 16; or a motor can be provided to be in transmission connection with the end of the screw rod 14, and the screw rod 14 can be driven to rotate by the motor.
[0038] Furthermore, the synchronization assembly includes a synchronization wheel 17 and a synchronization belt 18, and the ends of the screw rods 14 of the two sets of screw rod 14 assemblies are provided with the synchronization wheel 17, and the synchronization wheels 17 on both sides of the light source board are connected by the transmission of the synchronization belt 18. In one embodiment, the screw rods 14 of the two sets of screw rod 14 assemblies and the same end of the slide rail of a guide assembly are fixed with a synchronization wheel 17, and the three synchronization wheels 17 are arranged in a triangle and connected by the synchronization belt 18, so as to ensure that the screw rods 14 of the two sets of screw rod 14 assemblies rotate synchronously.
[0039] Optimizing the above embodiment, the front view light source distance adjustment mechanism 7, the upper view light source distance adjustment mechanism 8, and the lower view light source distance adjustment mechanism 9 also include two sets of guide components, which are respectively arranged on both sides of the corresponding light source board and connected to both ends of the corresponding light source board. This embodiment ensures the linear motion of the corresponding light source board through the guide components on both sides. Figure 1 and Figure 2 As shown, guide components are provided on both sides of the front view light source plate 4, guide components are provided on both sides of the upper view light source plate 5, and guide components are provided on both sides of the lower view light source plate 6.
[0040] Furthermore, the guide assembly includes a slide rail 19 and a slider 20 slidably mounted on the slide rail 19, the slide rail 19 is arranged parallel to the screw rod 14, and the slider 20 is connected to the corresponding light source board. Figure 1 and Figure 2 As shown, the slide rail 19 and the screw rod 14 on the same side of the light source board are arranged in parallel, and the slide rail 19 cooperates with the slider 20 to guide the movement of the light source board driven by the screw rod 14 assembly. Through the drive of the screw rod 14 and the guiding effect of the slide rail 19, the light source board can achieve precise linear movement.
[0041] Optimally, the guide assembly includes two slide rails 19, two slide rails 19 and a screw rod 14 are arranged on each side of the light source board, and the two slide rails 19 are respectively located on both sides of the screw rod 14, so as to improve the stability of movement and the reliability of the structure. The two slide rails 19 and the screw rod 14 can also be installed on the same bottom plate, and the bottom plate is fixed to the inner side of the frame 1.
[0042] In this embodiment, connecting plates are provided at both ends of the front view light source board 4, the upper view light source board 5, and the lower view light source board 6. The slider 20 and the screw nut 15 are connected to the connecting plates at the ends of the corresponding light source boards to ensure the consistency of the movement of the slider 20 and the screw nut 15, thereby ensuring that the light source board remains stable and accurate when moving.
[0043] The bottom of the rack 1 of this embodiment is also provided with casters 21, which enable the test equipment to be easily moved from one position to another, thereby improving the convenience and flexibility of the equipment. The casters 21 may also be equipped with a locking device, which can fix the equipment in a certain position when necessary, thereby preventing deviation of the test results or damage to the equipment due to movement of the equipment during the test.
[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A camera module three-posture test device, comprising a frame, characterized in that: A fixed frame is provided in the frame, and a rotating mechanism for placing and driving the camera module to be tested to rotate is installed on the fixed frame; a front view light source plate, an upper view light source plate, and a lower view light source plate are respectively provided in front of, above, and below the rotating mechanism; a front view light source distance adjustment mechanism, an upper view light source distance adjustment mechanism, and a lower view light source distance adjustment mechanism are provided on the frame for respectively adjusting the distance between the front view light source plate, the upper view light source plate, the lower view light source plate and the camera module to be tested.
2. The camera module three-posture test device according to claim 1, characterized in that: The rotating mechanism includes a rotating motor, a rotating shaft and a supporting plate for placing the camera module to be tested. Rotating shafts are provided at both ends of the supporting plate, and the rotating shaft at one end is connected to the output shaft of the rotating motor; the rotating shaft is installed on the fixing frame through a bearing.
3. The camera module three-posture test device according to claim 2, characterized in that: A teleconverter is arranged above the carrying plate, and the teleconverter is mounted on the mounting plate. Two ends of the mounting plate are respectively fixed to the carrying plate through vertical plates.
4. The camera module three-posture test device according to claim 3, characterized in that: Each of the vertical plates is provided with a slide groove extending in the vertical direction, and both ends of the mounting plate are slidably mounted in the corresponding slide grooves.
5. The camera module three-posture test device according to claim 1, characterized in that: The front view light source distance adjustment mechanism, the upper view light source distance adjustment mechanism, and the lower view light source distance adjustment mechanism all include two sets of screw rod assemblies, which are respectively arranged on both sides of the corresponding light source board and connected to the two ends of the corresponding light source board, and the two sets of screw rod assemblies are connected through a synchronization assembly.
6. The camera module three-posture test device according to claim 5, characterized in that: The screw assembly includes a screw and a screw nut threadedly connected to the screw, the screw is arranged vertically to the corresponding light source board, and the screw nut is connected to the corresponding light source board; the screws of the two sets of screw assemblies are connected through the synchronization assembly.
7. The camera module three-posture test device according to claim 6, characterized in that: A rotating handle is arranged at the end of one of the screw rods in the two screw rod assemblies.
8. The camera module three-posture test device according to claim 6, characterized in that: The synchronous assembly comprises a synchronous wheel and a synchronous belt. The ends of the screw rods of the two sets of screw rod assemblies are both provided with the synchronous wheels. The synchronous wheels on both sides of the light source board are connected through the synchronous belt transmission.
9. The camera module three-posture test device according to claim 6, characterized in that: The forward-view light source distance adjustment mechanism, the upward-view light source distance adjustment mechanism, and the downward-view light source distance adjustment mechanism also include two sets of guide components, which are respectively arranged on both sides of the corresponding light source board and connected to both ends of the corresponding light source board.
10. The camera module three-posture test device according to claim 9, characterized in that: The guide assembly includes a slide rail and a slider slidably mounted on the slide rail. The slide rail is arranged parallel to the lead screw, and the slider is connected to the corresponding light source board.