Ultra-wide angle camera module test equipment

Abstract

The utility model discloses an ultra-wide angle camera module test device comprising a rotating platform, at least two single-mode jigs are symmetrically arranged on the rotating platform, a data acquisition module is installed between the two single-mode jigs, and a near-focus test module, a near-focus test module, a near-focus test module, a near-focus test module, a near-focus test module, a near-focus test module and a near-focus test module are sequentially arranged around the outer side of the circumference of the rotating platform. The test module is used for testing the resolution capability of the camera in a short distance; the relay lens module is used for testing the ultra-wide-angle performance of the camera, and the far-focus test module is used for testing the resolution capability of the camera at a long distance; the mounting station is used for mounting the cameras, a plurality of test modules are integrated on one workbench, when other cameras are tested, the tested cameras can be taken down from the single-mode jig, and then the to-be-tested cameras are mounted in the single-mode jig, so that the cameras do not need to be dismounted and mounted one by one after all the cameras are tested; the test efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical element detection, and specifically relates to a test device for an ultra-wide-angle camera module. Background Art

[0002] A camera module is a camera component widely used in smart phones, cameras and other electronic devices. It has a large field of view angle, can capture a wider scene, provide a more comprehensive field of view, and needs to be strictly tested during the production process to ensure that its performance and quality meet the standard requirements.

[0003] However, in the traditional test process, since each camera module needs to be tested separately, if the next group of camera modules to be tested is to be installed, it can only be disassembled and installed after all the camera modules have been tested, resulting in low test efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a test device for an ultra-wide-angle camera module to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A test device for an ultra-wide-angle camera module includes a rotating platform, at least two single-mode fixtures are symmetrically arranged on the rotating platform, a data acquisition module is installed between the two single-mode fixtures, and the following are successively arranged around the outer circumference of the rotating platform;

[0007] A near-focus test module for testing the resolution ability of the camera at a short distance;

[0008] A relay lens module for testing the ultra-wide-angle performance of the camera;

[0009] A far-focus test module for testing the resolution ability of the camera at a long distance;

[0010] An installation station for installing the camera.

[0011] Further, the near-focus test module includes a first support frame, a moving guide rail is arranged on the first support frame, a moving slider is arranged on the moving guide rail, a side plate is fixedly installed on the moving slider, a first fixing frame is installed on the side plate, a light-shielding member is installed on the first fixing frame, a horizontal plate is arranged at the lower end of the light-shielding member, a near-focus test chart board is arranged at the lower end of the horizontal plate, the near-focus test chart board is a transparent plate, and a fixing column is arranged above it.

[0012] Further, the relay mirror module includes a second support frame, on which a second fixing frame is provided, and a relay mirror is installed on the second fixing frame. An imaging plate movably connected to the frame is provided above the relay mirror.

[0013] Further, fixing seats are provided on both sides of the imaging plate. Threaded rods are connected to both ends of the two fixing seats. Transmission gears are provided at the upper ends of a number of the threaded rods, and the transmission gears are connected by a transmission belt. The threaded rods extend downward, and a handwheel is rotatably connected to the bottom of one of the threaded rods.

[0014] Further, a cursor is provided on the fixing seat, and a measuring scale corresponding to the cursor is fixedly installed on the frame.

[0015] Further, the telephoto test module includes a third support frame, sliding guide rails are provided at both ends of the third support frame, and a third fixing frame is provided on the sliding guide rails. A telephoto test plate is installed on the third fixing frame.

[0016] Further, a measuring column penetrates through the third fixing frame, and the measuring column extends downward and abuts against a support block fixedly connected to the third support frame.

[0017] Advantages of the present utility model:

[0018] The present utility model uses a near-focus test module to test the resolution ability of a camera at a short distance, a relay mirror module to test the ultra-wide-angle performance of the camera, a telephoto test module to test the resolution ability of the camera at a long distance, and an installation station to install the camera. Multiple test modules are integrated on a workbench. When other cameras are being tested, the tested camera can be removed from the single-mode fixture, and then the camera to be tested can be installed into the single-mode fixture, without waiting for all cameras to be tested and then removed and installed one by one, improving the test efficiency.

[0019] Other features and advantages of the present utility model will be described in detail in the subsequent specific implementation section. Description of the Drawings

[0020] Figure 1 : Overall structure diagram of the present utility model.

[0021] Figure 2 : Structure diagram of the rotating platform of the present utility model.

[0022] Figure 3 : Exploded view of the rotating platform of the present utility model.

[0023] Figure 4 : Exploded view of the structure of the near-focus test module of the present utility model.

[0024] Figure 5: Structure diagram of the relay mirror module of the present utility model.

[0025] Figure 6 : Structure diagram of the long-focus test module of the present utility model.

[0026] Figure 7 : Structure diagram of the frame of the present utility model.

[0027] Figure 8 : Figure 7 Enlarged view of the local A structure.

[0028] Reference numerals in the drawings: 1, rotating platform; 2, near-focus test module; 3, relay mirror module; 4, long-focus test module; 5, data acquisition module; 6, single-mode fixture; 7, installation station; 11, imaging board; 12, fixed seat; 13, lifting rod; 14, transmission gear; 15, transmission belt; 16, handwheel; 17, cursor; 18, measuring scale; 21, support frame I; 22, moving guide rail; 23, moving slider; 24, side plate; 25, fixing frame I; 26, light-shielding member; 27, cross plate; 28, near-focus test board; 29, fixing column; 31, support frame II; 32, fixing frame II; 33, relay mirror; 41, support frame III; 42, sliding guide rail; 43, fixing frame III; 44, long-focus test board; 45, measuring column; 46, support block. Specific implementation manners

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0030] Please refer to Figures 1-8 ;

[0031] An ultra-wide-angle camera module test device comprises a rotating platform 1, a rotating motor is fixedly connected to the bottom of the rotating platform 1, and the rotating motor drives the rotating platform 1 to rotate. Preferably, the rotating motor can be a servo motor. At least two single-mode fixtures 6 are symmetrically arranged on the rotating platform 1. The single-mode fixture 6 is used to install the camera. A data acquisition module 5 is installed between the two single-mode fixtures 6. The test data of the camera is collected by the data acquisition module 5, and the test data is stored and then transmitted to an external computer. A near-focus test module 2, a relay lens module 3, a far-focus test module 4, and a relay lens module 5 are arranged around the outer circumference of the rotating platform 1. Module 4 and installation station 7, the near-focus test module 2 is used to test the resolution capability of the camera at a close distance, the relay lens module 3 is used to test the ultra-wide-angle performance of the camera, the far-focus test module 4 is used to test the resolution capability of the camera at a long distance, and the installation station 7 is used to install the camera. By integrating multiple test modules on a workbench, when other cameras are being tested, the tested camera can be removed from the single-mode fixture 6, and then the camera to be tested can be installed in the single-mode fixture 6. There is no need to wait for all cameras to be tested and then remove and install them one by one, thereby improving the test efficiency.

[0032] In this embodiment, the near-focus test module 2 includes a support frame 21, a movable guide rail 22 is provided on the support frame 21, a movable slider 23 is provided on the movable guide rail 22, a side plate 24 is fixedly installed on the movable slider 23, a fixed frame 25 is installed on the side plate 24, and a shading member 26 is installed on the fixed frame 25. The shading member 26 is used to block light to prevent the camera from being directly overexposed by other light and affecting the test effect. A horizontal plate 27 is provided at the lower end of the shading member 26, and a near-focus test plate 28 is provided at the lower end of the horizontal plate 27. The near-focus test plate 28 is a transparent plate, and a fixed column 29 is provided above it. The fixed column 29 is used to detect the moving focus effect of the camera. By setting the side plate 24 that slides with the movable guide rail 22, the lateral position of the near-focus test plate 28 can be adjusted. When the near-focus test plate 28 moves, the fixed column 29 moves with it. When the camera is in near-focus, the focus test of the camera can be performed.

[0033] In this embodiment, the relay mirror module 3 includes a supporting frame 31, a fixing frame 32 is provided on the supporting frame 31, a relay mirror 33 is installed on the fixing frame 32, an imaging plate 11 movably connected to the frame is provided above the relay mirror 33, the imaging plate 11 is arranged parallel to the relay mirror 33 to avoid errors in the test structure, the imaging plate 11 is used for imaging processing of the relay mirror module 3, and by using the relay mirror 33 to image the imaging plate 11, the camera module can be transformed in a very small space, shortening the test distance and reducing the detection cost.

[0034] Furthermore, fixing seats 12 are provided on both sides of the imaging panel 11. Threaded rods 13 are threadedly connected to both ends of the two fixing seats 12. Transmission gears 14 are provided at the upper ends of a number of the threaded rods 13. A number of the transmission gears 14 are drivingly connected by a transmission belt 15. The threaded rods 13 extend downward. The bottom of one of the threaded rods 13 is rotatably connected to a handwheel 16. By rotating the handwheel 16, the rotational movement of the threaded rod 13 can be controlled. Preferably, the threaded rod 13 is a lead screw pair. When the lead screw pair rotates, its position remains unchanged, so that the fixing seat 12 will move up and down on the threaded rod 13, realizing the lifting of the imaging panel 11 and adjusting the height of the imaging panel 11 to meet different test requirements; while rotating the handwheel 16, the lifting assembly rotates and drives the transmission gear 14 to rotate. The transmission gear 14 drives other gears to rotate together through the transmission belt 15, realizing the horizontal lifting of the imaging panel 11.

[0035] Furthermore, a cursor 17 is provided on the fixing seat 12, and a measuring scale 18 corresponding to the cursor 17 is fixedly installed on the frame. The cursor 17 moves up and down with the fixing seat 12. The cursor 17 aligns with the reading on the measuring scale 18, facilitating the operator to adjust the height of the imaging panel 11.

[0036] In this embodiment, the telecentric test module 4 includes a third support frame 41. Sliding guide rails 42 are provided at both ends of the third support frame 41. A third fixing frame 43 is provided on the sliding guide rails 42. A telecentric test panel 44 is installed on the third fixing frame 43. The position of the third fixing frame 43 is fixed by using screws, thereby adjusting the distance between the telecentric test panel 44 and the camera, and being applicable to cameras of different sizes and resolutions.

[0037] Furthermore, a measuring column 45 passes through the third fixing frame 43. The measuring column 45 extends downward and abuts against a support block 46 fixedly connected to the third support frame 41. The measuring column 45 is vertically arranged, and a reading is provided on its side, facilitating the precise adjustment of the measuring height of the telecentric test panel 44.

[0038] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0039] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. An ultra-wide-angle camera module testing device, comprising a rotating platform (1), wherein at least two single-mode fixtures (6) are symmetrically arranged on the rotating platform (1), a data acquisition module (5) is installed between the two single-mode fixtures (6), and a data acquisition module (5) is sequentially arranged around the outer side of the circumference of the rotating platform (1); A close focus test module (2), used to test the resolution capability of the camera at a close distance; A relay lens module (3), used for testing the ultra-wide-angle performance of the camera; A telephoto test module (4), used to test the resolution capability of the camera at a long distance; An installation station (7), used for installing a camera; The near-focus test module (2) comprises a support frame (21), a movable guide rail (22) is provided on the support frame (21), a movable slider (23) is provided on the movable guide rail (22), a side plate (24) is fixedly mounted on the movable slider (23), a fixed frame (25) is mounted on the side plate (24), a shading member (26) is mounted on the fixed frame (25), a horizontal plate (27) is provided at the lower end of the shading member (26), a near-focus test chart (28) is provided at the lower end of the horizontal plate (27), and the near-focus test chart (28) is a transparent plate with a fixing column (29) provided above it.

2. The ultra-wide-angle camera module testing device according to claim 1, characterized in that: The relay mirror module (3) comprises a second support frame (31), a second fixing frame (32) is arranged on the second support frame (31), a relay mirror (33) is mounted on the second fixing frame (32), and an imaging plate (11) movably connected to the frame is arranged above the relay mirror (33).

3. The ultra-wide-angle camera module testing device according to claim 2, characterized in that: Fixed seats (12) are provided on both sides of the imaging drawing board (11), and both ends of the two fixed seats (12) are threadedly connected with lifting rods (13). A plurality of the lifting rods (13) are provided with transmission gears (14) at their upper ends, and the plurality of the transmission gears (14) are connected in transmission via a transmission belt (15). The lifting rods (13) extend downward, and a hand wheel (16) is rotatably connected to the bottom of one of the lifting rods (13).

4. The ultra-wide-angle camera module testing device according to claim 3, characterized in that: The fixing seat (12) is provided with a vernier (17), and a measuring ruler (18) corresponding to the vernier (17) is fixedly mounted on the frame.

5. The ultra-wide-angle camera module testing device according to claim 1, characterized in that: The telefocus test module (4) comprises a support frame three (41), two ends of the support frame three (41) are provided with sliding guide rails (42), a fixed frame three (43) is provided on the sliding guide rails (42), and a telefocus test chart (44) is installed on the fixed frame three (43).

6. The ultra-wide-angle camera module testing device according to claim 5, characterized in that: The fixing frame three (43) is provided with a measuring column (45), and the measuring column (45) extends downward and abuts against a supporting block (46) fixedly connected to the supporting frame three (41).

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