Camera testing device
By designing a camera testing device including a shell, adapter ring, integral ball and light barrier, the light leakage hazards and adjustment time-consuming problems in scientific camera photoelectric testing are solved, and efficient photoelectric and imaging testing is achieved.
Patent Information
- Application Number
- CN202422168390.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-09-04
AI Technical Summary
In the prior art, the photoelectric test of scientific cameras has hidden dangers of light leakage and the adjustment process is time-consuming and labor-intensive, affecting the testing efficiency.
A camera testing device is designed, including a shell, adapter ring, integral sphere and light blocking plate, forming a dark field environment, and positioning the camera to be tested and the integral sphere is achieved through the connection between the adapter ring and the integral sphere, avoiding light leakage, and quickly adjusting through the fixture assembly.
Effectively prevent light leakage, improve the efficiency of photoelectric testing and the accuracy of imaging testing, simplify the test process, and improve the test efficiency.
Smart Images
Figure CN223285869U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of camera detection, in particular to a camera testing device. Background Art
[0002] With the development of society and industry, scientific cameras have been widely used in various fields such as industrial machinery and equipment, medical equipment, vehicle equipment, and outdoor life. Scientific cameras usually have relatively strict requirements on their own optoelectronic parameters.
[0003] Photoelectric testing of scientific cameras is typically performed using an integrating sphere with a uniform light source in a dark field environment. Currently, this is typically achieved by shrouding the camera in a black cloth, but this method poses a risk of light leakage. Furthermore, testing requires manual positioning, requiring constant adjustment of the relative position of the camera aperture and the light source to achieve optimal results. This adjustment process is time-consuming and labor-intensive, significantly impacting test efficiency. Utility Model Content
[0004] The technical problem to be improved by the present invention is to provide a camera testing device, which can greatly reduce the hidden danger of light leakage during testing and improve testing efficiency.
[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a camera testing device, including a shell and an adapter ring, the shell including a front cover, a rear cover and a side panel, the front cover, the rear cover and the side panel are interconnected and together form a test chamber; the front cover is provided with a first through hole connected to the test chamber, and the first through hole is adapted to the adapter ring; the adapter ring is arranged on the front cover; the rear cover is provided with a second through hole for connecting the test chamber and the external integrating sphere.
[0006] Furthermore, an integrating sphere is included, which is connected to the back cover, and the inner space of the integrating sphere is connected to the test chamber through the second through hole.
[0007] Furthermore, the first through hole and the second through hole are coaxially arranged.
[0008] Furthermore, it also includes a light baffle, which is arranged in the test chamber and parallel to the front cover and the rear cover of the shell; the four sides of the light baffle are respectively abutted against the side panels of the shell; a third through hole is provided on the light baffle, and the first through hole, the second through hole and the third through hole are coaxially arranged.
[0009] Furthermore, a fixture assembly is included, and the fixture assembly includes a fixture, and the fixture is arranged in the test chamber and is used to clamp the target.
[0010] Furthermore, the fixture assembly also includes a first cover plate, and the fixture is arranged on a surface of the first cover plate facing the test chamber; a side plate of the shell is provided with a fourth through hole, and the first cover plate is detachably arranged on the side plate and covers the fourth through hole.
[0011] Furthermore, the fixture assembly further includes a handle, and the handle is disposed on a side of the first cover away from the test chamber.
[0012] Furthermore, the clamp assembly further includes a slide, and the clamp is slidably disposed on the first cover plate via the slide.
[0013] Furthermore, a second cover plate is included. A fifth through hole is provided on the other side plate of the shell. The second cover plate is detachably arranged on the other side plate and covers the fifth through hole.
[0014] Furthermore, the number of the side panels is four; slots are respectively provided on the four edges of the inner sides of the front cover and the rear cover of the shell, and the slots are adapted to the side panels; the ends of the four side panels close to the front cover are respectively inserted into the slots on the front cover, and are fixedly connected to the front cover by screws; the ends of the four side panels close to the rear cover are respectively inserted into the slots on the rear cover, and are fixedly connected to the rear cover by screws.
[0015] The beneficial effects of the present invention are as follows: a test chamber is formed by the front cover, the rear cover and the side panels of the shell, so that a dark field environment can be formed inside the shell; by providing an adapter ring, it can match cameras of various specifications, has strong versatility, and can effectively prevent light leakage; by providing a second through hole on the rear cover, the integrating sphere can be connected to the test chamber through the second through hole; by placing the camera to be tested on the adapter ring of the front cover and the integrating sphere on the rear cover, the positioning between the camera to be tested and the integrating sphere can be achieved, so that there is no need to repeatedly adjust the angle between the camera and the integrating sphere before testing, thereby improving the testing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a cross-sectional schematic diagram of a camera testing device of the present invention;
[0017] Figure 2 This is a schematic diagram of an explosion of the camera testing device of the present invention.
[0018] Description of labels:
[0019] 1. Housing; 2. Adapter ring; 3. Integrating sphere; 4. Light baffle; 5. Clamp assembly; 6. Second cover; 7. Tripod;
[0020] 11. Front cover; 12. Rear cover; 13. Side panels;
[0021] 111, first through hole; 121, second through hole; 131, fourth through hole; 132, fifth through hole;
[0022] 31. Light inlet; 32. Receiving hole;
[0023] 41. third through hole;
[0024] 51. Clamp; 52. First cover plate; 53. Slide; 54. Handle. DETAILED DESCRIPTION
[0025] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the embodiments and the accompanying drawings.
[0026] See also Figure 1 A camera testing device includes a shell and an adapter ring, the shell includes a front cover, a rear cover and side panels, the front cover, rear cover and side panels are interconnected and together form a test chamber; the front cover is provided with a first through hole connected to the test chamber, and the first through hole is adapted to the adapter ring; the adapter ring is arranged on the front cover; the rear cover is provided with a second through hole for connecting the test chamber and an external integrating sphere.
[0027] As can be seen from the above description, the beneficial effects of the present invention are: by forming a rectangular darkroom structure and achieving positioning between the camera to be tested and the integrating sphere, the photoelectric testing efficiency of the scientific camera can be improved; by providing an adapter ring, the hidden danger of light leakage can be effectively avoided.
[0028] Furthermore, an integrating sphere is included, which is connected to the back cover, and the internal space of the integrating sphere is connected to the test chamber through the second through hole.
[0029] From the above description, it can be seen that the light source is set at the light inlet of the integrating sphere. After the light emitted by the light source enters the integrating sphere through the light inlet of the integrating sphere, it is reflected multiple times by the internal coating to form uniform light. Then, it enters the interior of the shell through the receiving hole of the integrating sphere and the through hole on the back cover of the shell and illuminates the camera to be tested placed on the adapter ring to realize photoelectric testing.
[0030] Furthermore, the first through hole and the second through hole are coaxially arranged.
[0031] As can be seen from the above description, it is ensured that the light entering the interior of the housing can directly illuminate the camera to be tested placed on the adapter ring.
[0032] Furthermore, it also includes a light baffle, which is arranged in the test chamber and parallel to the front cover and the rear cover of the shell; the four sides of the light baffle are respectively abutted against the side panels of the shell; a third through hole is provided on the light baffle, and the first through hole, the second through hole and the third through hole are coaxially arranged.
[0033] As can be seen from the above description, by providing a light baffle, stray light can be effectively blocked and filtered, further ensuring the uniformity of light irradiating the photosensitive element of the camera to be tested.
[0034] Furthermore, a fixture assembly is included, and the fixture assembly includes a fixture, and the fixture is arranged in the test chamber and is used to clamp the target.
[0035] It can be seen from the above description that the testing device can be used not only for photoelectric testing but also for imaging testing.
[0036] Furthermore, the fixture assembly also includes a first cover plate, and the fixture is arranged on a surface of the first cover plate facing the test chamber; a side plate of the shell is provided with a fourth through hole, and the first cover plate is detachably arranged on the side plate and covers the fourth through hole.
[0037] As can be seen from the above description, by placing the fixture on a detachable cover, it is convenient to take out the fixture assembly as a whole before performing an imaging test, and then put the fixture assembly back after clamping the target on the fixture.
[0038] Furthermore, the fixture assembly further includes a handle, and the handle is disposed on a side of the first cover away from the test chamber.
[0039] As can be seen from the above description, by providing a handle, it is convenient to take out the clamp assembly as a whole.
[0040] Furthermore, the clamp assembly further includes a slide, and the clamp is slidably disposed on the first cover plate via the slide.
[0041] As can be seen from the above description, by providing a slide, the position of the target can be easily adjusted.
[0042] Furthermore, the area of the fourth through hole is smaller than the cross-sectional area of the first cover plate and larger than the cross-sectional area of the slide platform.
[0043] From the above description, it can be seen that the slide and the clamp can be placed in the housing, and the entire clamp assembly will not fall into the housing.
[0044] Furthermore, a second cover plate is included. A fifth through hole is provided on the other side plate of the shell. The second cover plate is detachably arranged on the other side plate and covers the fifth through hole.
[0045] As can be seen from the above description, by providing a detachable second cover, it is convenient to perform operations inside the shell.
[0046] Furthermore, the front cover, rear cover and side panels are integrally formed.
[0047] Furthermore, the number of the side panels is four; slots are respectively provided on the four edges of the inner sides of the front cover and the rear cover of the shell, and the slots are adapted to the side panels; the ends of the four side panels close to the front cover are respectively inserted into the slots on the front cover, and are fixedly connected to the front cover by screws; the ends of the four side panels close to the rear cover are respectively inserted into the slots on the rear cover, and are fixedly connected to the rear cover by screws.
[0048] As can be seen from the above description, light leakage can be effectively prevented by fitting the panels together with a slot structure.
[0049] Example 1
[0050] Please refer to Figure 1-2 , Embodiment 1 of the present invention is: a camera testing device, which can be used for photoelectric detection of scientific cameras.
[0051] like Figure 1 As shown, it includes a housing 1, an adapter ring 2 and an integrating sphere 3. Figure 2 As shown, the housing 1 includes a front cover 11, a rear cover 12, and four side panels 13, forming a rectangular test chamber with a dark field environment. Specifically, the edges of the inner sides of the front cover 11 and the rear cover 12 (i.e., the sides facing the interior of the housing) are provided with U-shaped slots that match the side panels. The ends of the four side panels 13 closest to the front cover 11 are respectively engaged with the slots on the front cover 11 and locked with screws. Similarly, the ends of the four side panels 13 closest to the rear cover 12 are respectively engaged with the slots on the rear cover 12 and locked with screws. By aligning the panels with a U-shaped groove structure, light leakage can be effectively prevented. In other optional embodiments, the front cover 11, the rear cover 12 and the side panels 13 may also have different composition methods, such as the front cover 11, the rear cover 12 and the four side panels 13 being integrally formed or partially integrally formed. For example, the front cover 11 and part of the side panels 13 are integrally formed, and the rear cover 12 and the remaining side panels 13 are integrally formed, and the two groups of structures are then spliced to form a test chamber. For another example, the four side panels 13 are integrally formed and then assembled with the front cover 11 and the rear cover 12. Of course, there are other feasible composition methods, which are not listed here one by one. Furthermore, it also includes a tripod 7, the number of which can be four, which is arranged below the shell 1 to support the shell 1.
[0052] Combine Figure 1 and Figure 2 As shown, the front cover 11 of the housing 1 is provided with a first through hole 111 that communicates with the test chamber and is adapted to the adapter ring 2. The adapter ring 2 is disposed on the front cover 11. In this embodiment, the adapter ring 2 is screwed to the front cover 11 and has a threaded hole adapted to the camera to be tested.
[0053] The integrating sphere 3 is located outside the housing 1 and connected to the back cover 12 . The back cover 12 is provided with a second through hole 121 . The test chamber is connected to the inner space of the integrating sphere 3 through the second through hole 121 and the receiving hole 32 of the integrating sphere 3 .
[0054] Furthermore, a light source (not shown in the figure) is included, and the light source is arranged at the light entrance hole 31 of the integrating sphere 3.
[0055] To test the photoelectric parameters of a scientific camera, place the camera under test on adapter ring 2 with its photosensitive element facing the interior of housing 1. Turn on the light source, and light from the light source enters the integrating sphere 3 through light inlet 31. Multiple reflections from the internal coating of the sphere 3 create a uniform light beam, which then enters the test chamber through receiving hole 32 of the sphere 3 and second through-hole 121 in the rear cover 12 of the housing 1, striking the photosensitive element of the camera under test. The camera under test can be connected to a computer to collect data from the photosensitive element, thereby enabling photoelectric parameter testing.
[0056] Furthermore, a light baffle 4 is included. The light baffle 4 is disposed in the test chamber, with its four sides respectively abutting against the four side panels 13 of the housing 1. In this embodiment, two light baffles 4 are included, secured within the housing 1 via slots in the side panels 13. The two light baffles 4 are evenly distributed along the length of the housing 1 and are arranged parallel to the front cover 11 and rear cover 12 of the housing 1. A third through hole 41 is provided in the light baffle 4, wherein the first through hole 111, the second through hole 121, the third through hole 41, and the light inlet 31 and receiving hole 32 of the integrating sphere 3 are coaxially arranged. By providing the light baffle 4, stray light can be effectively blocked and filtered, further ensuring the uniformity of light irradiating the photosensitive element of the camera under test.
[0057] Furthermore, it also includes a fixture assembly 5, which includes a fixture 51 for clamping a test target (such as a resolution test target). In some optional embodiments, the fixture 51 is fixedly set in the test chamber. In this embodiment, the fixture 51 is movably set in the test chamber. Specifically, in combination with Figure 1 and Figure 2As shown, the clamp assembly 5 also includes a first cover plate 52, a slide 53 and a handle 54. A fourth through hole 131 is provided on one side plate 13 of the shell 1 (in this embodiment, it can be the side plate at the top of the shell, i.e., the upper plate). The area of the fourth through hole 131 is smaller than the cross-sectional area of the first cover plate 52 and larger than the cross-sectional area of the slide 53. In this embodiment, the first cover plate 52 is fastened to the side plate 13 by hand screws and covers the fourth through hole 131; the slide 53 is attached to the side of the first cover plate 52 facing the test chamber by screws, and the clamp 51 is slidably arranged on the slide 53; the handle 54 is arranged on the side of the first cover plate 52 away from the test chamber. The sliding direction of the clamp 51 is the front-to-back direction (i.e., the longitudinal direction of the shell 1, i.e., sliding toward the front cover 11 or sliding toward the rear cover 12), and the sliding range of the clamp 51 can be within a certain range before and after the center point of the longitudinal direction of the shell 1.
[0058] During use, the entire fixture assembly 5 can be removed by pulling handle 54, a resolution test target mounted on fixture 51, and then placed back into housing 1. This allows the device to be used not only for optoelectronic testing but also for lens imaging testing, such as long-exposure mode imaging in low-light environments. During imaging testing, the camera under test is placed on adapter ring 2 with its lens facing the interior of housing 1 so that it can capture the resolution test target. During the test, the power is turned off, leaving housing 1 in a dark or low-light environment. The imaging test is then performed by analyzing the image.
[0059] When used for photoelectric testing, the fixture does not have a target mounted thereon. When used for imaging testing, the light shield 4 may not be installed, or the light shield 4 may be ensured not to affect the resolution test target captured by the camera to be tested.
[0060] Furthermore, a second cover plate 6 is included; the other side plate 13 of the housing 1 (in this embodiment, it can be one of the left and right side plates of the housing) is provided with a fifth through hole 132. The second cover plate 6 is fastened to the other side plate 13 by a hand screw and covers the fifth through hole 132. By removing the second cover plate 6, work can be performed inside the housing 1, such as installing, adjusting, or removing the light baffle 4.
[0061] In an optional embodiment, the fixture assembly 5 may only include a fixture 51 and a slide 53. The fixture 51 can be slidably set on the side plate of the shell 1 facing the test chamber through the slide 53. By disassembling the second cover plate 6, the target can be clamped and the position of the fixture 51 can be adjusted.
[0062] In summary, the utility model provides a camera testing device, which can effectively prevent light leakage by forming a rectangular darkroom structure in the form of puzzle panels, and making the puzzle panels fit together with a U-shaped groove structure; by setting an adapter ring, it can match cameras of various specifications, and can effectively avoid the hidden danger of light leakage at the connection between the camera and the darkroom; because there is a mechanical structure for positioning, there is no need to repeatedly adjust the angle between the camera and the integrating sphere before testing, thereby improving the test efficiency; by setting a fixture assembly, the test device can be used not only for photoelectric testing, but also for imaging testing; by setting the fixture on a detachable cover and providing a handle on the cover, the fixture assembly can be taken out as a whole by pulling the handle, which is convenient for clamping the target on the fixture.
[0063] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the description and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.
Claims
1. A camera testing device, characterized in that: It includes a shell and an adapter ring, the shell includes a front cover, a rear cover and side panels, the front cover, rear cover and side panels are interconnected and together form a test chamber; the front cover is provided with a first through hole connected to the test chamber, and the first through hole is adapted to the adapter ring; the adapter ring is arranged on the front cover; the rear cover is provided with a second through hole for connecting the test chamber and an external integrating sphere.
2. The camera testing device according to claim 1, wherein: An integrating sphere is also included. The integrating sphere is connected to the back cover, and the inner space of the integrating sphere is connected to the testing chamber through the second through hole.
3. The camera testing device according to claim 1, wherein: The first through hole and the second through hole are coaxially arranged.
4. The camera testing device according to claim 1, wherein: It also includes a light baffle, which is arranged in the test chamber and parallel to the front cover and the rear cover of the shell; the four sides of the light baffle are respectively abutted against the side panels of the shell; a third through hole is provided on the light baffle, and the first through hole, the second through hole and the third through hole are coaxially arranged.
5. The camera testing device according to claim 1, wherein: The test chamber further comprises a fixture assembly, wherein the fixture assembly comprises a fixture, and the fixture is disposed in the test chamber and is used to clamp a target.
6. The camera testing device according to claim 5, characterized in that: The fixture assembly further includes a first cover plate, and the fixture is arranged on a surface of the first cover plate facing the test chamber; a side plate of the shell is provided with a fourth through hole, and the first cover plate is detachably arranged on the side plate and covers the fourth through hole.
7. The camera testing device according to claim 6, wherein: The clamp assembly further includes a handle, which is disposed on a surface of the first cover away from the test chamber.
8. The camera testing device according to claim 6, wherein: The clamp assembly further includes a slide, and the clamp is slidably disposed on the first cover plate via the slide.
9. The camera testing device according to any one of claims 5 to 8, characterized in that: A second cover plate is further included. A fifth through hole is provided on the other side plate of the shell. The second cover plate is detachably arranged on the other side plate and covers the fifth through hole.
10. The camera testing device according to any one of claims 1 to 8, characterized in that: There are four side panels; slots are provided on the four edges of the inner sides of the front cover and the rear cover of the shell, and the slots are adapted to the side panels; the ends of the four side panels close to the front cover are respectively inserted into the slots on the front cover and are fixedly connected to the front cover by screws; the ends of the four side panels close to the rear cover are respectively inserted into the slots on the rear cover and are fixedly connected to the rear cover by screws.