Partial test equipment

Abstract

The utility model relates to a particle test device. The particle test device comprises a rack; the deck plate is horizontally arranged in the rack; the movable test frame is arranged on the deck plate; the first driving mechanism is connected with the movable testing frame and used for driving the movable testing frame to move up and down; the test fixture is used for fixing the camera module to be tested; the test box is arranged on the movable test frame and is connected with the test fixture through a test box adapter plate; the white field spherical light source is arranged right above the movable test frame; the second driving mechanism is connected with the white field spherical light source; the black field cover plate is positioned on one side of the movable testing frame and is used for providing a black field environment in a testing process; the third driving mechanism is connected with the black field cover plate; and the control host is respectively connected with the white field spherical light source, the test box, the first driving mechanism, the second driving mechanism and the third driving mechanism. According to the utility model, comprehensive detection of the smudginess degree and the light leakage degree can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of automated testing equipment, in particular to a particle testing device. Background Art

[0002] As the core electronic component for image capture, camera modules play a crucial role in modern intelligent terminal devices. Whether it's smartphones, smart cars, robots, or other high-tech devices, they all rely on camera modules to complete optical imaging, thereby enabling a variety of functions such as photography, information capture and analysis, and visual interaction. With technological advancements and the popularization of intelligent terminal devices, the demand for camera modules is showing a significant growth trend.

[0003] Particle testing equipment for camera modules specializes in detecting tiny particles or impurities within the module. These impurities, which can originate from production dust, material residue, and other sources (i.e., contamination), directly impact the camera module's image clarity and overall performance. Unfortunately, the particle testing equipment currently available on the market is limited to contamination detection, meaning each device typically only tests a specific function of the camera module. Therefore, to fully ensure product quality, camera module manufacturers are forced to purchase multiple different types of testing equipment, significantly increasing production costs and space requirements while also significantly reducing production efficiency.

[0004] Therefore, it is necessary to develop a new particle testing equipment. Summary of the Invention

[0005] The purpose of the utility model is to provide a particle testing device which can realize comprehensive detection of dirtiness and light leakage.

[0006] The particle testing device described in the present invention includes:

[0007] The frame has an outer sheet metal provided on the outside for shielding;

[0008] The table panel is horizontally arranged in the frame;

[0009] A mobile test stand is set on the table panel and is used to carry the camera module to be tested;

[0010] A first driving mechanism is connected to the mobile test frame and is used to drive the mobile test frame to move up and down;

[0011] Test fixture, used to fix the camera module to be tested;

[0012] The test box is placed on a mobile test stand and is connected to the test fixture via a test box adapter plate to enable signal interaction between the test box and the camera module to be tested;

[0013] A white field spherical light source is provided directly above the mobile test stand and is used to provide the white field light source required for the test;

[0014] A second driving mechanism is connected to the white-field spherical light source and is used to drive the white-field spherical light source to move up and down;

[0015] The black field cover is located on one side of the mobile test stand and is used to provide a black field environment during the test;

[0016] A third driving mechanism is connected to the black field cover plate, and is used to drive the black field cover plate to rotate within a preset angle range to cover or expose the camera module to be tested;

[0017] The control host is respectively connected to the white field spherical light source, the test box, the first driving mechanism, the second driving mechanism and the third driving mechanism, and is used to control the operation of the entire test equipment.

[0018] Optionally, the first driving mechanism includes a first cylinder, and the first cylinder is connected to the mobile test frame to drive the mobile test frame to move up and down.

[0019] Optionally, the second driving mechanism includes a vertical guide rail, a slider and a second cylinder, the vertical guide rail is arranged in the up and down direction, the second cylinder is connected to the slider, and the slider is also connected to the white field spherical light source to drive the white field spherical light source to move up and down.

[0020] Optionally, the third driving mechanism includes a rotating device and a third cylinder, the black field cover is connected to the rotating device through a connecting rod, the rotating device is connected to the third cylinder, and the third cylinder is fixed on the table panel to drive the rotation of the black field cover.

[0021] Optionally, a material clamping device is further included, which is fixed on the mobile test frame, and the test box is installed on the material clamping device for clamping and fixing the test box to ensure the stability of the test box during the test process.

[0022] Optionally, a material placement tray is further included. The material placement tray is horizontally arranged in the frame and located on the side of the table panel, and is used to place the camera module to be tested, so that the operator can easily access and replace it.

[0023] Optionally, it also includes: a display screen, which is connected to the rack through a display screen bracket, and the display screen is connected to the control host for displaying test information, such as test results, test progress, etc., to facilitate operator monitoring and recording.

[0024] Optionally, the bottom of the rack is equipped with feet and casters. The feet are used to adjust the height of the equipment to ensure stability and levelness on different surfaces. The casters are used to move the equipment to different test locations.

[0025] Optionally, a start button is provided on the right side of the panel, which is connected to the control host and is used to start or stop the test process. The start button is connected to the control host and can start or stop the test process, making it easier for the operator to control the operation of the test equipment.

[0026] The utility model has the following advantages:

[0027] The particle testing device described in this utility model effectively avoids interference from external light sources by integrating an independent and adjustable white-field spherical light source, an externally shielded sheet metal structure, and a rotatable black-field cover. The device can quickly load and unload camera modules, perform comprehensive dirt and light leakage testing, and display test and analysis results in real time on a display screen. This particle testing device improves the performance and quality of the final product while also increasing testing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of the overall structure of the particle testing device described in the embodiment of this application;

[0029] Figure 2 This is a structural diagram of the white-field spherical light source and the second driving mechanism in an embodiment of the present application;

[0030] Figure 3 1 is a left side view of the black field cover and the third driving mechanism in the embodiment of the present application;

[0031] Figure 4 This is a left side view of the mobile test stand and the first drive mechanism in an embodiment of the present application;

[0032] Figure 5 This is a principle block diagram of the control part in the embodiment of the present application;

[0033] Description of the reference signs in the accompanying drawings:

[0034] 1. Rack, 2. Tabletop, 3. Material placement tray, 4. White-field spherical light source, 5. Black-field cover, 6. Mobile test stand, 7. Display, 8. Display bracket, 9. Control unit, 10. Foot cup, 11. Casters, 12. Start button, 13. Vertical guide rail, 14. Third cylinder, 15. Rotating device, 16. First cylinder, 17. Second cylinder, 18. Material clamping device, 19. Test box, 20. Test box adapter plate, 21. Test fixture, 22. Slider, 23. Camera module to be tested. DETAILED DESCRIPTION

[0035] The following describes the implementation of the technical solution of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the contents disclosed in this specification. The present invention may also be implemented or applied through different specific embodiments, and the details in this specification may be modified or altered based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are intended only to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

[0036] like Figures 1 to 5 As shown, in an embodiment of the present application, a particle testing device includes a frame 1, a table panel 2, a mobile test frame 6, a first drive mechanism, a test fixture 21, a test box 19, a white field spherical light source 4, a second drive mechanism, a black field cover 5, a third drive mechanism, and a control host 9. The outer side of the frame 1 is provided with an external sheet metal for shielding. The table panel 2 is horizontally arranged within the frame 1. The mobile test frame 6 is arranged on the table panel 2 and is used to carry the camera module 23 to be tested. The first drive mechanism is connected to the mobile test frame 6 and is used to drive the mobile test frame 6 to move up and down. The test fixture 21 is used to fix the camera module 23 to be tested. The test box 19 is arranged on the mobile test frame 6 and is connected to the test fixture 21 via the test box adapter plate 20 to enable signal exchange between the test box 19 and the camera module 23 to be tested. The white field spherical light source 4 is arranged directly above the mobile test frame 6 to provide the white field light source required for testing. The second drive mechanism is connected to the white field spherical light source 4 and is used to drive the white field spherical light source 4 to move up and down. A black field cover plate 5 is located on one side of the mobile test stand 6 and provides a black field environment during testing. A third drive mechanism is connected to the black field cover plate 5 and is used to rotate the cover plate 5 within a preset angle range to cover or expose the camera module 23 under test. A control host 9 is connected to the white field spherical light source 4, the test box 19, the first drive mechanism, the second drive mechanism, and the third drive mechanism to control the operation of the entire test equipment.

[0037] like Figure 4As shown, in one possible embodiment, the test box 19 is a device for testing a camera module. It integrates multiple test functions and interfaces, can simulate various conditions in actual camera module usage scenarios, and perform comprehensive testing on the camera module. The test box 19 is related to the prior art and will not be described in detail here.

[0038] like Figure 4 As shown, in one possible embodiment, the test box adapter board 20 performs signal switching and transmission. It transmits test signals output by the test box 19 to the camera module via the circuits and interfaces on the test box adapter board 20. It also transmits signals generated by the camera module (such as image signals and control signals) back to the test box 19 for analysis and processing. The test box adapter board 20 is conventional technology and will not be described in detail here.

[0039] like Figure 4 As shown, in a possible embodiment, the first driving mechanism includes a first cylinder 16 , and the first cylinder 16 is connected to the mobile test frame 6 to drive the mobile test frame 6 to move up and down.

[0040] like Figure 4 As shown, in a possible embodiment, the test box adapter plate 20 is fixed to the test box 19 through the pin header slots.

[0041] like Figure 2 As shown, in a possible embodiment, the second driving mechanism includes a vertical guide rail 13, a slider 22 and a second cylinder 17. The vertical guide rail 13 is arranged in the up and down directions. The second cylinder 17 is connected to the slider 22. The white-field spherical light source 4 is fixed to the slider 22 by a connecting rod screw to drive the white-field spherical light source 4 to move up and down.

[0042] like Figure 3 As shown, in a possible embodiment, the third driving mechanism includes a rotating device 15 and a third cylinder 14. The black field cover 5 is connected to the rotating device 15 through a connecting rod. The rotating device 15 is connected to the third cylinder 14. The third cylinder 14 is fixed to the table panel 2 by screws at the bottom to drive the rotation of the black field cover 5.

[0043] like Figure 4 As shown, in a possible embodiment, a particle testing device further includes: a material clamping device 18, the material clamping device 18 is fixed on the mobile test frame 6, and the test box 19 is installed on the material clamping device 18, which is used to clamp and fix the test box 19 to ensure the stability and accuracy of the test box 19 during the test process.

[0044] like Figure 1As shown, in a possible embodiment, a particle testing device further includes: a material placement tray 3, which is horizontally arranged in the frame 1 and located on the side of the table panel 2, for placing materials to facilitate operator access and replacement.

[0045] like Figure 1 As shown, in a possible embodiment, a particle testing device further includes: a display screen 7, which is connected to the frame 1 through a display screen bracket (not shown in the figure), and the display screen 7 is connected to the control host 9 for displaying test information, such as test results, test progress, etc., to facilitate operator monitoring and recording.

[0046] like Figure 1 As shown, in one possible embodiment, the bottom of the rack 1 is provided with a foot cup 10 and casters 11. The foot cup 10 is used to adjust the height of the device to ensure the stability and levelness of the device on different surfaces. The casters 11 are used to move the device to different test locations.

[0047] like Figure 1 and Figure 5 As shown, in one possible embodiment, a start button 12 is provided on the right side of the table panel 2. The start button 12 is connected to the control host 9 and is used to start or stop the test process. The start button is connected to the control host and can start or stop the test process, making it easier for the operator to control the operation of the test equipment.

[0048] like Figures 1 to 5 As shown, the process of testing the camera module using the particle testing device of the embodiment of the present application is as follows:

[0049] Step 1. Place the camera module 23 to be tested into the test fixture 21 by manual loading, and fix the test fixture 21 on the test box adapter plate 20.

[0050] Step 2. Press the start button 12 to start the particle test device. The third cylinder 14 drives the rotating device 15 to rotate the black field cover 5 90° clockwise. After the black field cover 5 completely covers the camera module 23 to be tested above the test fixture 21, the light leakage test begins. After the test is completed, the third cylinder 14 controls the black field cover 5 to reset. The second cylinder 17 drives the vertical slide 13 to adjust the height of the white field spherical light source 4. The first cylinder 16 drives the camera module 23 to be tested to move upward, and sends the camera module 23 to be tested into the interior of the white field spherical light source 4 until the FOV of the camera module 23 to be tested is completely covered by the white field spherical light source 4.

[0051] S3. After the test is completed, the second cylinder 17 and the first cylinder 16 are reset, and the black field and white field test results are displayed on the display screen 7.

[0052] The above embodiments are preferred implementation methods of the present invention, but the implementation methods of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. A particle testing device, characterized in that: include: A frame (1), the outer side of which is provided with an external sheet metal for shielding; A table panel (2) is horizontally arranged in the frame (1); A mobile test frame (6) is arranged on the table panel (2) and is used to carry the camera module (23) to be tested; A first driving mechanism, connected to the mobile test frame (6), for driving the mobile test frame (6) to move up and down; A test fixture (21) for fixing the camera module to be tested (23); A test box (19) is arranged on a mobile test frame (6) and is connected to a test fixture (21) via a test box adapter plate (20) to achieve signal interaction between the test box (19) and the camera module (23) to be tested; A white-field spherical light source (4) is arranged directly above the mobile test stand (6) and is used to provide the white-field light source required for the test; A second driving mechanism is connected to the white-field spherical light source (4) and is used to drive the white-field spherical light source (4) to move up and down; A black field cover (5), located on one side of the mobile test stand (6), is used to provide a black field environment during the test; A third driving mechanism, connected to the black field cover plate (5), is used to drive the black field cover plate (5) to rotate within a preset angle range to cover or expose the camera module (23) to be tested; The control host (9) is respectively connected to the white field spherical light source (4), the test box (19), the first drive mechanism, the second drive mechanism and the third drive mechanism, and is used to control the operation of the entire test equipment.

2. The particle testing device according to claim 1, characterized in that: The first driving mechanism comprises a first cylinder (16), and the first cylinder (16) is connected to the mobile test frame (6) to drive the mobile test frame (6) to move up and down.

3. The particle testing device according to claim 1, characterized in that: The second driving mechanism comprises a vertical guide rail (13), a slider (22) and a second cylinder (17), wherein the vertical guide rail (13) is arranged in an up-down direction, the second cylinder (17) is connected to the slider (22), and the slider (22) is also connected to the white-field spherical light source (4) to drive the white-field spherical light source (4) to move up and down.

4. The particle testing device according to claim 1, characterized in that: The third driving mechanism comprises a rotating device (15) and a third cylinder (14); the black field cover plate (5) is connected to the rotating device (15) via a connecting rod; the rotating device (15) is connected to the third cylinder (14); and the third cylinder (14) is fixed to the table panel (2) to drive the rotation of the black field cover plate (5).

5. The particle testing device according to claim 1, characterized in that: It also includes a material clamping device (18), which is fixed on the mobile test frame (6). The test box (19) is installed on the material clamping device (18) and is used to clamp and fix the test box (19).

6. The particle testing device according to claim 1, characterized in that: It also includes a material placement tray (3), which is horizontally arranged in the frame (1) and located on the side of the table panel (2).

7. The particle testing device according to any one of claims 1 to 6, characterized in that: Also includes: A display screen (7) is connected to the frame (1) via a display screen bracket, and the display screen (7) is connected to a control host (9) for displaying test information.

8. The particle testing device according to any one of claims 1 to 6, characterized in that: A foot cup (10) and a caster (11) are provided at the bottom of the frame (1); the foot cup (10) is used to adjust the height of the device, and the caster (11) is used to move the device.

9. The particle testing device according to claim 1, characterized in that: A start button (12) is provided on the right side of the table panel (2), and the start button (12) is connected to the control host (9) and is used to start or stop the test process.

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