Lens testing device of polymorphic turntable

Abstract

The utility model discloses a lens testing device of a polymorphic turntable. The lens testing device comprises a base station; the camera mounting rack and the turntable unit are respectively mounted on the base station, the camera is mounted on the camera mounting rack, and the computer is connected with the camera; the turntable unit comprises a box body, and a backlight source, a turntable module and a test card which are respectively arranged in the box body; the turntable module is provided with a plurality of clamping grooves, the box body is provided with a test window, the backlight source is arranged below the test window, and the motion trails of the clamping grooves penetrate through the space between the test window and the backlight source. During testing, the testing lens is installed on the camera, the testing card is installed in the clamping groove, the camera can shoot the testing card through the testing lens, shot pictures are displayed on the computer, the pictures shot by the testing lens can be different by moving the testing lens up and down or rotating the rotating disc module, and meanwhile the upper rotating disc and the lower rotating disc can be used independently or in a combined mode. Therefore, the test of various requirements of the test lens is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of lens detection, in particular to a lens testing device of a multi-state turntable. Background Art

[0002] The performance of existing industrial lenses must be tested on several devices to fully evaluate their performance. Different products have different testing requirements and different reliance on equipment, so the performance test of industrial lenses on the production line is often interspersed between various devices, and there are often insufficient equipment or some equipment is idle. In addition, key equipment fails, resulting in a large number of products to be tested being piled up.

[0003] Moreover, the existing testing devices are usually non-automatic, and it takes a lot of time to test each product. Furthermore, the corresponding product to be tested is single, and usually one device corresponds to one product, which is very wasteful. Moreover, one product is often tested by several devices or equipment, which takes too long. Furthermore, when testing new products, new devices need to be designed, and a lot of manpower is consumed for disassembly, assembly, and debugging.

[0004] Therefore, the prior art has defects and needs to be improved. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a lens testing device with a polymorphic turntable, so as to realize testing of a lens with various requirements by one device, and the device is convenient to use, has wide applicability, improves the automation level of the test, and improves the test efficiency.

[0006] The technical solution of the utility model is as follows: a lens testing device with a multi-state turntable is provided, comprising: a base; a camera mounting frame and a turntable unit respectively mounted on the base, a camera mounted on the camera mounting frame, and a computer connected to the camera; the turntable unit comprises: a box, a backlight source, a turntable module, and a test card respectively mounted in the box; the turntable module is provided with a plurality of card slots, the card slots are used to place the test card and / or are vacant, the box is provided with a test window, the backlight source is arranged below the test window, and the movement track of the card slot passes between the test window and the backlight source. The backlight source is used to provide backlight to facilitate testing, and at the same time, the backlight source can emit light of different colors so as to test the test lens in different environments.

[0007] During the test, the test lens is mounted on the camera, and the test card is mounted in the card slot. The camera can shoot the test card through the test lens, and the shot image is displayed on the computer. By rotating the turntable module, the test lens will face a different test card, thereby enabling multiple tests on the test lens. This achieves a test environment that corresponds to multiple requirements, reduces the circulation time of the object under test in multiple equipment tests, reduces equipment investment, and ensures the consistency and stability of the test results.

[0008] Furthermore, the lens test device of the multi-state turntable further includes: a PLC controller connected to the computer, the turntable module includes: a turntable body, a drive motor connected to the turntable body; the card slots are evenly distributed on the turntable body and distributed in a circle; the drive motor is connected to the PLC controller. The card slots are evenly distributed, and when the turntable body rotates a uniform angle, a card slot rotates to the bottom of the test window, which is convenient for the drive motor to control.

[0009] Furthermore, the outer edge of the turntable body is a worm gear, and the drive motor cooperates with the worm gear through a worm. The cooperation mode of the worm gear and the worm gear has a simple structure and efficient operation, and can accurately rotate the position of the card slot to the bottom of the test window.

[0010] Further, the turntable unit further comprises: a first position sensor connected to the PLC controller, the first position sensor comprising: an infrared receiver and an infrared transmitter, one of the infrared receiver and the infrared transmitter being mounted on the turntable body and the other being mounted on the box. The first position sensor is used to confirm the initial position of the turntable body. Every time the turntable body rotates a certain angle, it can know what test card is under the current test window. Further, when there are no less than two turntable modules, all the turntable modules are arranged up and down. Take two turntable modules as an example; when the test card on the upper turntable module needs to be used for testing, one of the card slots in the lower turntable module is vacant, and the card slot is controlled to be turned to the bottom of the test window, so that the backlight source can provide backlight for the test card on the upper turntable module. Similarly, when the test card of the lower turntable module needs to be used for testing, one of the card slots in the upper turntable module is vacant, and the card slot is controlled to be turned to the bottom of the test window, so that the test card on the lower turntable module can be used for testing. In this way, one device can realize more types of lens tests.

[0011] Furthermore, the lens testing device of the multi-state turntable further includes: a horizontal adjustment platform installed on the base, an X&Y adjustment platform installed on the horizontal adjustment platform; the turntable unit is installed on the X&Y adjustment platform. Therefore, the horizontal adjustment platform is used to adjust the level to ensure that the turntable unit is horizontal. The X&Y adjustment platform is used to adjust the position of the turntable unit in the horizontal plane so that the test lens can be accurately aligned with the test window, thereby accurately aligning with the test card.

[0012] Furthermore, the camera mounting frame includes: a Z-axis linear motion platform, a cantilever beam mounted on a moving plate of the Z-axis linear motion platform; the camera is mounted on the cantilever beam. The Z-axis linear motion platform is used to adjust the height of the camera, thereby adjusting the height of the test lens, which is convenient for testing at different heights and testing lenses of different sizes.

[0013] Furthermore, the camera mounting bracket further includes: a second position sensor mounted on the Z-axis linear motion platform, the second position sensor being used to limit the moving range of the moving plate, ensuring a safe distance between the object under test and the test window, and preventing the test lens from moving and touching the test card, thereby damaging the test lens. The second position sensor is connected to the PLC controller. The second position sensor is one of a proximity switch and a limit switch.

[0014] Furthermore, the base platform includes: a vibration isolation bracket, and a honeycomb panel installed on the vibration isolation bracket.

[0015] When the Z-axis linear motion platform is a linear motion platform driven by a motor, the PLC controller is connected to the Z-axis linear motion platform.

[0016] By adopting the above scheme, the utility model provides a lens testing device with a multi-state turntable, which has the following technical effects:

[0017] (1) Since one device can perform multiple tests, there is no need to debug multiple test devices, which greatly reduces the debugging time of the device.

[0018] (2) One staff member can perform multiple tests, which can greatly reduce labor costs.

[0019] (3) Since the test lens is uniformly fixed on the camera, a variety of tests can be performed by rotating the turntable body, effectively reducing the error caused by the assembly of the test lens when testing different devices and improving the consistency of the test.

[0020] (4) Since one device can perform multiple tests, it can effectively reduce the investment in the device and save costs.

[0021] (5) Since one device can perform multiple tests, there is no need to configure multiple testing equipment, thus reducing site occupancy.

[0022] (6) By turning the turntable, different tests on the test lens can be performed without having to test the project on different devices, effectively reducing the time spent on product testing.

[0023] (7) By adjusting the Z-axis linear motion platform, test lenses of different sizes can be tested, so that one device can test multiple products, which is convenient for application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0025] Figure 2 is a schematic diagram of the structure of the base;

[0026] Figure 3 It is a schematic diagram of the structure of the Z-axis linear motion platform, camera, and test lens;

[0027] Figure 4 is a schematic diagram of the structure of the turntable unit, wherein the dotted line is on the back side;

[0028] Figure 5 It is a structural schematic diagram of the upper turntable body;

[0029] Figure 6 Schematic diagram of the structure of the lower turntable body, wherein the dotted line is on the back;

[0030] Figure 7 It is a structural diagram of the horizontal adjustment platform and the X&Y adjustment platform. DETAILED DESCRIPTION

[0031] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] See also Figure 1-Figure 7The present embodiment provides a lens test device with a multi-state turntable, comprising: a base; a camera mounting frame and a turntable unit respectively mounted on the base, a camera 10 mounted on the camera mounting frame, and a computer 11 connected to the camera 10; the turntable unit comprises: a box 12, a backlight source 13 respectively mounted in the box 12, a turntable module, and a test card 14; the turntable module is provided with a plurality of card slots 15, the card slots 15 are used to place the test cards and / or are empty, the box 12 is provided with a test window 16, the backlight source 13 is arranged below the test window 16, and the movement track of the card slot passes between the test window 16 and the backlight source 13. The backlight source 13 is used to provide backlight for convenient testing, and the backlight source 13 can emit light of different colors so as to test the test lens 30 under different environments.

[0033] During the test, the test lens 30 is mounted on the camera 10, and the test cards are respectively mounted in the card slots of the turntable module. The camera 10 can shoot the test card 14 through the test lens 30, and the shot picture is displayed on the computer 11. By rotating the turntable module, the test card 14 facing the test lens 30 will be different, so that multiple tests can be performed on the test lens 30. A test environment corresponding to multiple requirements is achieved, the circulation time of the object under test in multiple equipment tests is reduced, the investment in equipment is reduced, and the consistency and stability of the test results are guaranteed.

[0034] In this embodiment, the lens testing device of the multi-state turntable further includes: a PLC controller 28 connected to the computer, and the turntable module includes: a turntable body 17, a drive motor 18 drivingly connected to the turntable body 17; the card slots 15 are evenly distributed on the turntable body 17 and distributed in a circle; the drive motor is connected to the PLC controller 28. The card slots 15 are evenly distributed, and when the turntable body 17 rotates a uniform angle, one card slot 15 rotates to the bottom of the test window 16, and the PLC controller controls the turntable body 17 by controlling the drive motor 18.

[0035] In this embodiment, the outer edge of the turntable body 17 is a worm gear 19, and the drive motor 18 cooperates with the worm gear 19 through a worm. The cooperation between the worm gear 19 and the worm gear has a simple structure and efficient operation, and can accurately rotate the position of the card slot 15 to the bottom of the test window 16.

[0036] The turntable unit further includes: a first position sensor connected to the PLC controller 28, the first position sensor including: an infrared receiver 40 and an infrared transmitter 41, one of the infrared receiver 40 and the infrared transmitter 41 is mounted on the turntable body 17, and the other is mounted on the box 12. The first position sensor is used to confirm the initial position of the turntable body 17. Every time the turntable body 17 rotates a certain angle, it can know what test card is under the current test window.

[0037] In this embodiment, there are two turntable modules, which are arranged up and down. When the test card 14 on the upper turntable module needs to be used for testing, the lower turntable body is rotated, and the empty card slot 15 of the lower turntable body is controlled to be set below the test window 16, so that the backlight source 13 can provide backlight for the test card 14 on the upper turntable module. Similarly, when the test card 14 of the lower turntable module needs to be used for testing, the upper turntable body is rotated, and the empty card slot 15 of the upper turntable body is controlled to be set below the test window 16, so that the test card 14 on the lower turntable module can be used for testing. In this way, one device can realize more types of test lens tests.

[0038] In this embodiment, the upper turntable module has 6 circular slots, named upper slot 1 to slot 6, which are evenly distributed at 360 degrees. In this embodiment, slot 1 is installed with the USAF 1951 resolution test board; slot 2 is installed with the field of view test board; slot 3 is installed with the star array board; slot 4 is installed with the chessboard test board; slot 5 is installed with the sine test board; and slot 6 is vacant. A position sensor 1 is installed on its side to locate the initial position of the upper turntable.

[0039] In this embodiment, the lower turntable module has 6 circular slots, named as lower slot 1 to slot 6, evenly distributed 360 degrees. In this embodiment, slot 1 is used to install the filter; slot 2 is used to install the precision pinhole; slot 3 is used to install the all-black backplane; slot 4 is used to install the reflector; slot 5 is used to install the cross coordinate plate; slot 6 is left vacant.

[0040] In this embodiment, the lens testing device of the multi-state turntable further includes: a horizontal adjustment platform 21 mounted on the base, an X&Y adjustment platform 22 mounted on the horizontal adjustment platform 21; and the turntable unit is mounted on the X&Y adjustment platform 22. Therefore, the horizontal adjustment platform 21 is used to adjust the level to ensure that the turntable unit is horizontal. The X&Y adjustment platform 22 is used to adjust the position of the turntable unit on the horizontal plane so that the test lens 30 can be accurately aligned with the test window 16, thereby accurately aligning with the test card 14.

[0041] In this embodiment, the camera mounting frame includes: a Z-axis linear motion platform 23, a cantilever beam 24 mounted on a moving plate 29 of the Z-axis linear motion platform 23; and the camera 10 is mounted on the cantilever beam 24. The Z-axis linear motion platform 23 is used to adjust the height of the camera 10, thereby adjusting the height of the test lens 30, so as to facilitate testing at different heights and testing test lenses 30 of different sizes.

[0042] In this embodiment, the camera mounting frame further includes: a second position sensor 25 mounted on the Z-axis linear motion platform 23, the second position sensor 25 is used to limit the moving range of the moving plate, ensure a safe distance between the object to be tested and the test window, and prevent the test lens 30 from moving and touching the test card 14, thereby damaging the test lens 30. The second position sensor 25 is connected to the PLC controller 28. The second position sensor is a limit switch.

[0043] In this embodiment, the base includes: a vibration isolation bracket 26 and a honeycomb panel 27 mounted on the vibration isolation bracket 26 .

[0044] In this embodiment, the PLC controller 28 not only controls the driving motor, but also controls the backlight source. When the Z-axis linear motion platform 23 is a linear motion platform driven by a motor, the PLC controller 28 is electrically connected to the Z-axis linear motion platform.

[0045] In summary, the utility model provides a lens testing device with a multi-state turntable, which has the following technical effects:

[0046] (1) Since one device can perform tests of various requirements, there is no need to debug multiple test devices, which greatly reduces the debugging time of the device.

[0047] (2) One staff member can perform multiple tests, which can greatly reduce labor costs.

[0048] (3) Since the test lens is uniformly fixed on the camera, a variety of tests can be performed by rotating the turntable body, effectively reducing the error caused by the assembly of the test lens when testing different devices and improving the consistency of the test.

[0049] (4) Since one device can perform multiple tests, it can effectively reduce the investment in the device and save costs.

[0050] (5) Since one device can perform multiple tests, there is no need to configure multiple testing equipment, thus reducing site occupancy.

[0051] (6) By turning the turntable, different tests on the test lens can be performed without having to test the project on different devices, effectively reducing the time spent on product testing.

[0052] (7) By adjusting the Z-axis linear motion platform, test lenses of different sizes can be tested, so that one device can test a variety of products and has wide applicability.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lens testing device with a multi-state turntable, characterized in that: include: abutment; A camera mounting frame and a turntable unit respectively mounted on the base, a camera mounted on the camera mounting frame, and a computer connected to the camera; The turntable unit comprises: a box, a backlight source, a turntable module, and a test card respectively installed in the box; The turntable module is provided with a plurality of card slots, the box body is provided with a test window, the backlight source is arranged below the test window, and the movement track of the card slot passes between the test window and the backlight source.

2. The lens testing device of a multi-state turntable according to claim 1, characterized in that: Also includes: A PLC controller connected to the computer, the turntable module includes: a turntable body, a drive motor drivingly connected to the turntable body; the slots are evenly distributed on the turntable body and distributed in a circle; the drive motor is connected to the PLC controller.

3. The lens testing device of a multi-state turntable according to claim 2, characterized in that: The outer edge of the turntable body is a worm gear, and the drive motor cooperates with the worm gear through a worm.

4. The lens testing device of a multi-state turntable according to claim 2, characterized in that: The turntable unit further includes: a first position sensor connected to the PLC controller, the first position sensor includes: an infrared receiver and an infrared transmitter, one of the infrared receiver and the infrared transmitter is installed on the turntable body, and the other is installed on the box.

5. A lens testing device for a multi-state turntable according to any one of claims 1 to 4, characterized in that: When there are no less than two turntable modules, all the turntable modules are arranged up and down.

6. The lens testing device of a multi-state turntable according to claim 1, characterized in that: Also includes: A horizontal adjustment platform is installed on the base, and an X&Y adjustment platform is installed on the horizontal adjustment platform; the turntable unit is installed on the X&Y adjustment platform.

7. The lens testing device of a multi-state turntable according to claim 2, characterized in that: The camera mounting frame comprises: a Z-axis linear motion platform, a cantilever beam mounted on a moving plate of the Z-axis linear motion platform; and the camera is mounted on the cantilever beam.

8. The lens testing device of a multi-state turntable according to claim 7, characterized in that: The camera mounting bracket also includes: a second position sensor installed on the Z-axis linear motion platform, the second position sensor is used to limit the moving range of the moving plate to ensure a safe distance between the object to be tested and the test window, and the second position sensor is connected to the PLC controller.

9. The lens testing device of a multi-state turntable according to claim 1, characterized in that: The base platform comprises: a vibration isolation bracket and a honeycomb panel installed on the vibration isolation bracket.

10. The lens testing device of a multi-state turntable according to claim 8, characterized in that: The second position sensor is a proximity switch or a limit switch.

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