SFR test module

Abstract

The utility model discloses an SFR test module group. The device comprises a rack, an assembly line module which is arranged on the rack and is used for transferring products, a large light plate test module which is arranged above the assembly line module and can be lifted to adjust the height, a Lens test module which is arranged beside the assembly line module, and a small light plate test module which is arranged beside the Lens test module and can be lifted to adjust the height, a PIN butt joint module used for being in butt joint with the product to conduct data is further arranged beside the assembly line module. A large light plate test module is arranged on an assembly line module to detect a long-range focal section of a product, the large light plate test module is utilized to adjust the height to match products with different focal sections, and a small light plate test module lower than the large light plate test module is arranged beside the assembly line module. The small light plate test module is used for detecting the close-range focal length, and the small light plate test module is used for adjusting the height to match products with different focal lengths, so that the range of detected products is greatly expanded, and the universality is improved.

Description

Technical field:

[0001] The utility model relates to the technical field of camera detection, in particular to an SFR test module. Background technology:

[0002] At present, the common testing methods for camera modules include MTF (Modulation Transfer Function), SFR (Spatial Frequency Response) and CTF (Contrast Transfer Function). Among them, the SFR test evaluates the resolution performance by measuring the lens's ability to restore details of different spatial frequencies. The traditional testing method is to test the product manually, which is slow, inefficient and relatively unstable.

[0003] A camera SFR test mechanism with Chinese patent application number 202123143834.2, in the technical solution disclosed in the patent, uses a test module 8 to position the product, and the second cylinder 12 pushes the test module 8 to the position to be tested, and the first image test card 3 is photographed by the front camera for close-up test, and then the first cylinder 10 pushes the relay mirror module 6 to move and set to the outside of the test module 8, and the first image test card 3 is photographed by the front camera through the relay mirror for long-range test. Similarly, the third image test card 5 is photographed by the rear camera for long-range test, and then the auxiliary plate 9 is pushed by the third cylinder 14 to drive the second image test card 16 to move to the front of the rear camera, and the second image test card 16 is photographed by the rear camera for close-up test. However, in the test mechanism, the image test cards are fixed at a vertical distance relative to the camera, and cameras with different focal lengths cannot be tested. Moreover, the test mechanism is obviously independent of the production line. During the test process, the product needs to be transferred, which not only greatly reduces the production efficiency, but also easily causes product deviations during the transfer process, affecting the final test effect.

[0004] In view of this, the inventor proposes the following technical solution. Utility model content:

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an SFR test module.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions: an SFR test module, comprising: a frame, an assembly line module arranged on the frame and used to transfer products, a large light board test module arranged above the assembly line module and capable of lifting and adjusting the height, a Lens test module arranged next to the assembly line module and a small light board test module arranged next to the Lens test module and capable of lifting and adjusting the height. A PIN docking module for docking and conducting data with the product is also arranged next to the assembly line module.

[0007] Furthermore, in the above technical solution, the large light board test module includes a first guide column and a second guide column arranged on both sides of the frame, a first sliding block and a second sliding block respectively arranged on the first guide column and the second guide column, a first supporting frame installed between the first sliding block and the second sliding block, a large light board assembly arranged on the first supporting frame, and a first Z-axis driving device and a second Z-axis driving device arranged on both sides of the frame and respectively used to drive the first sliding block and the second sliding block to move, and two of the first guide column and the second guide column are arranged in parallel.

[0008] Furthermore, in the above technical solution, the first Z-axis drive device includes a first screw rod assembly that passes through the first sliding block and is located between the two first guide columns, a first motor installed on the frame and used to drive the first screw rod assembly to work, and a first pulley group arranged between the first motor and the first screw rod assembly, and the second Z-axis drive device has the same structure as the first Z-axis drive device.

[0009] Furthermore, in the above technical solution, the Lens test module includes a first X-axis drive device vertically arranged on one side of the assembly line module, a third Z-axis drive device arranged on the first X-axis drive device, a second support frame arranged on the third Z-axis drive device and extending to the top of the assembly line module, and a relay mirror arranged on the second support frame.

[0010] Furthermore, in the above technical solution, the small light board test module includes a second X-axis driving device vertically arranged on one side of the assembly line module and parallel to the first X-axis driving device, a fourth Z-axis driving device arranged on the second X-axis driving device, and a small light board arranged on the fourth Z-axis driving device and extending to the top of the assembly line module.

[0011] Furthermore, in the above technical solution, a first Y-axis driving module for driving the Lens test module and the small light board test module to move along the direction of the assembly line module is provided on one side of the assembly line module, and a second Y-axis driving module for driving the PIN docking module to move along the direction of the assembly line module is provided on the other side of the assembly line module.

[0012] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art: the utility model adopts a large light board test module to be set on the assembly line module to perform SFR detection on the product at the long-range focal length, and the lifting and adjusting height of the large light board test module is used to match products of different focal lengths, and a small light board test module with a height lower than the large light board test module is set on the side of the assembly line module, and the small light board test module is used to perform SFR detection of the close-range focal length, and the lifting and adjusting height of the small light board test module is used to match products of different focal lengths, thereby greatly improving the range of detected products and improving versatility. At the same time, the Lens test module can further improve the breadth of the large light board test module for the long-range focal length SFR detection of the product, and improve the scope of product application. Secondly, the product is directly transferred to the bottom of the large light board test module with the assembly line module for testing, without the need to transfer out of the assembly line module, which can not only greatly improve the detection efficiency, but also avoid the detection deviation caused by product transfer and improve the accuracy of detection. Description of the drawings:

[0013] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0015] Figure 3 It is a structural schematic diagram of the first Z-axis driving device in the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the Lens test module and the small light board test module in the utility model. Figure 1 ;

[0017] Figure 5 This is a schematic diagram of the structure of the Lens test module and the small light board test module in the utility model. Figure 2 ;

[0018] Figure 6 It is a structural schematic diagram of the PIN docking module in the utility model. Specific implementation method:

[0019] The utility model is further described below in conjunction with specific embodiments and drawings.

[0020] See Figures 1 to 6As shown, an SFR test module includes: a rack 1, an assembly line module 2 disposed on the rack 1 and used to transfer a product 10, a large optical board test module 3 disposed above the assembly line module 2 and capable of lifting and adjusting the height, a lens test module 4 disposed beside the assembly line module 2, and a small optical board test module 5 disposed beside the lens test module 4 and capable of lifting and adjusting the height, and a PIN docking module 6 for docking and conducting data with the product 10 is also disposed beside the assembly line module 2. Among them, the product 10 is positioned and carried by a carrier 100 and conveyed with the assembly line module 2, and two products 10 are simultaneously positioned on the carrier 100, and a PIN conducting seat for conducting with the PIN docking module 6 is also disposed on the carrier 100. A large light board test module 3 is set on the assembly line module 2 to perform SFR detection of the long-range focal length of the product 10, and the large light board test module 3 is adjusted by lifting and lowering to match the product 10 of different focal lengths. A small light board test module 5 with a height lower than the large light board test module 3 is set on the side of the assembly line module 2, and the small light board test module 5 is used to perform SFR detection of the close-range focal length, and the small light board test module 3 is adjusted by lifting and lowering to match the product 10 of different focal lengths, thereby greatly improving the range of detected products 10 and improving versatility. At the same time, the lens test module 4 can further improve the breadth of the large light board test module 3 for the long-range focal length SFR detection of the product 10, and improve the scope of application of the product 10. Secondly, the product 10 is directly transferred to the bottom of the large light board test module 3 with the assembly line module 2 for testing, without the need to transfer out of the assembly line module 2, which can not only greatly improve the detection efficiency, but also avoid the detection deviation caused by the transfer of the product 10, and improve the accuracy of the detection.

[0021] The large light board test module 3 includes a first guide column 31 and a second guide column 32 arranged on both sides of the frame 1, a first sliding block 33 and a second sliding block 34 respectively arranged on the first guide column 31 and the second guide column 32, a first supporting frame 35 installed between the first sliding block 33 and the second sliding block 34, a large light board assembly 36 arranged on the first supporting frame 35, and a first Z-axis driving device 37 and a second Z-axis driving device 38 arranged on both sides of the frame 1 and respectively used to drive the first sliding block 33 and the second sliding block 34 to move. Two of the first guide column 31 and the second guide column 32 are arranged in parallel.

[0022] The first Z-axis driving device 37 includes a first screw assembly 371 that passes through the first sliding block 33 and is located between the two first guide columns 31, a first motor 372 installed on the frame 1 and used to drive the first screw assembly 371 to work, and a first pulley group 373 arranged between the first motor 372 and the first screw assembly 371. The second Z-axis driving device 38 has the same structure as the first Z-axis driving device 37.

[0023] The Lens test module 4 includes a first X-axis driving device 41 vertically arranged on one side of the assembly line module 2, a third Z-axis driving device 42 arranged on the first X-axis driving device 41, a second supporting frame 43 arranged on the third Z-axis driving device 42 and extending to the top of the assembly line module 2, and a relay mirror 44 arranged on the second supporting frame 43.

[0024] The small light board test module 5 includes a second X-axis driving device 51 vertically arranged on one side of the assembly line module 2 and parallel to the first X-axis driving device 41, a fourth Z-axis driving device 52 arranged on the second X-axis driving device 51, and a small light board 53 arranged on the fourth Z-axis driving device 52 and extending to the top of the assembly line module 2.

[0025] A first Y-axis driving module 7 for driving the Lens test module 4 and the small light board test module 5 to move along the direction of the assembly line module 2 is provided on one side of the assembly line module 2, and a second Y-axis driving module 8 for driving the PIN docking module 6 to move along the direction of the assembly line module 2 is provided on the other side of the assembly line module 2.

[0026] In summary, when the utility model is working, the assembly line module 2 is docked with the production assembly line, and the carrier 100 loaded with the product 10 is transferred from the production assembly line to the assembly line module 2; further, the carrier 110 and the product 10 are moved to the bottom of the large light board test module 3 through the assembly line module 2, and the second Y-axis drive module 8 drives the PIN docking module 6 to move to the side carrier 110 and dock with the PIN guide seat; further, according to the focal length information of the product 10, the first Z-axis drive device 37 and the second Z-axis drive device 38 in the large light board test module 3 adjust the large light board assembly 36 to a suitable position, and then the product 10 is photographed toward the large light board test module 3 for a long-range SFR test, and in the large light board test module 3 cannot meet the long-range test of product 10, the first Y-axis driving module 7 is required to move the Lens test module 4 to the top of product 10, and the Lens test module 4 increases the long-range test range; further, the first Y-axis driving device 7 moves the small light board test module 5 to the top of product 10, and the product 10 is photographed toward the small light board test module 5 for a close-range SFR test. Of course, the second X-axis driving device 51 and the fourth Z-axis driving device 52 in the small light board test module 5 cooperate to adjust the small light board 53 to a suitable position to meet the close-range SRF test requirements of product 10; finally, the assembly line module 2 moves the carrier 100 and the product 10 back to the product production line.

[0027] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made according to the structure, characteristics and principles described in the patent application scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. An SFR test module, characterized in that: include: A rack (1), an assembly line module (2) arranged on the rack (1) and used to transfer a product (10), a large light board test module (3) arranged above the assembly line module (2) and capable of being raised and lowered for height adjustment, a lens test module (4) arranged beside the assembly line module (2), and a small light board test module (5) arranged beside the lens test module (4) and capable of being raised and lowered for height adjustment. A PIN docking module (6) for docking and conducting data with the product (10) is also arranged beside the assembly line module (2).

2. The SFR test module according to claim 1, characterized in that: The large optical board test module (3) comprises a first guide column (31) and a second guide column (32) arranged on both sides of the frame (1), a first sliding block (33) and a second sliding block (34) respectively arranged on the first guide column (31) and the second guide column (32), a first support frame (35) installed between the first sliding block (33) and the second sliding block (34), a large optical board assembly (36) arranged on the first support frame (35), and a first Z-axis driving device (37) and a second Z-axis driving device (38) arranged on both sides of the frame (1) and used to drive the first sliding block (33) and the second sliding block (34) to move respectively, wherein two of the first guide column (31) and two of the second guide column (32) are arranged in parallel.

3. The SFR test module according to claim 2, characterized in that: The first Z-axis driving device (37) comprises a first screw assembly (371) penetrating the first sliding block (33) and located between the two first guide columns (31), a first motor (372) mounted on the frame (1) and used to drive the first screw assembly (371) to work, and a first pulley group (373) arranged between the first motor (372) and the first screw assembly (371). The second Z-axis driving device (38) has the same structure as the first Z-axis driving device (37).

4. The SFR test module according to claim 1, characterized in that: The lens test module (4) comprises a first X-axis drive device (41) vertically arranged on one side of the assembly line module (2), a third Z-axis drive device (42) arranged on the first X-axis drive device (41), a second support frame (43) arranged on the third Z-axis drive device (42) and extending above the assembly line module (2), and a relay mirror (44) arranged on the second support frame (43).

5. The SFR test module according to claim 4, characterized in that: The small light board test module (5) comprises a second X-axis drive device (51) vertically arranged on one side of the assembly line module (2) and arranged parallel to the first X-axis drive device (41), a fourth Z-axis drive device (52) arranged on the second X-axis drive device (51), and a small light board (53) arranged on the fourth Z-axis drive device (52) and extending above the assembly line module (2).

6. An SFR test module according to any one of claims 1 to 5, characterized in that: A first Y-axis driving module (7) for driving the lens test module (4) and the small light board test module (5) to move along the direction of the assembly line module (2) is provided on one side of the assembly line module (2), and a second Y-axis driving module (8) for driving the PIN docking module (6) to move along the direction of the assembly line module (2) is provided on the other side of the assembly line module (2).

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