Ultra-wide-angle eccentric test fixture

Abstract

The utility model relates to the technical field of detection devices, and particularly discloses an ultra-wide-angle eccentric test fixture which comprises a fixed support, a fastening module, a data processing module and a light source module, a light-transmitting through hole is formed in the top of the fixed support in the vertical direction, and a containing groove matched with a base of an ultra-wide-angle lens is formed in the top of the fixed support. A first semicircular clamping hole coaxial with the light-transmitting through hole is formed in the side wall of the fixed support, and the inner diameter of the first semicircular clamping hole is matched with the outer diameter of the head of the ultra-wide-angle lens; the fastening unit is arranged on the fixed support and is used for fixing the ultra-wide-angle lens; the data processing module is arranged at the top of the fixed support, and the data processing module is used for being electrically connected with a base of the ultra-wide-angle lens; the light source module is arranged at the bottom of the fixed support and used for irradiating towards the interior of the light-transmitting through hole. The ultra-wide-angle eccentricity testing device has the effect of solving the problems that the ultra-wide-angle eccentricity testing device is complex in structure, inconvenient to operate in large-scale full-detection trial operation and high in maintenance cost.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of detection devices, in particular to an ultra-wide-angle eccentricity testing jig. BACKGROUND

[0002] A wide-angle lens is a photographic lens with a shorter focal length than a standard lens, a larger viewing angle than a standard lens, a longer focal length than a fisheye lens and a smaller viewing angle than a fisheye lens. The wide-angle lens is divided into two types, namely a normal wide-angle lens and an ultra-wide-angle lens. The ultra-wide-angle lens is widely used in the shooting of large-scale landscape photography works due to its large lens viewing angle and wide field of view.

[0003] Referring to Figure 1 The ultra-wide-angle lens 1 comprises a base 11 and a head 12. In order to ensure the shooting quality, the assembled ultra-wide-angle lens 1 is usually subjected to professional ultra-wide-angle eccentricity testing before leaving the factory. The conventional testing device has a complex structure, is inconvenient to operate in large-scale full inspection testing operation and has high maintenance cost. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problems of the complex structure of the ultra-wide-angle eccentricity testing device, the inconvenient operation in large-scale full inspection testing operation and the high maintenance cost, the application provides an ultra-wide-angle eccentricity testing jig.

[0005] The ultra-wide-angle eccentricity testing jig provided by the application adopts the following technical scheme:

[0006] The ultra-wide-angle eccentricity testing jig comprises a fixed support, a fastening module, a data processing module and a light source module. A light-transmitting through hole is vertically formed in the top of the fixed support. An accommodating groove for adapting to the base of the ultra-wide-angle lens is formed in the top of the fixed support. A first semicircular clamping hole coaxial with the light-transmitting through hole is formed in the side wall of the fixed support. The inner diameter of the first semicircular clamping hole is adapted to the outer diameter of the head of the ultra-wide-angle lens. The fastening module is arranged on the fixed support for fixing the ultra-wide-angle lens. The data processing module is arranged on the top of the fixed support and is electrically connected with the base of the ultra-wide-angle lens. The light source module is arranged on the bottom of the fixed support and is used for irradiating towards the light-transmitting through hole.

[0007] By adopting the technical scheme, in use, the ultra-wide-angle lens is pressed in the first semicircular clamping hole along the transverse direction, and then the head of the ultra-wide-angle lens is pressed in the first semicircular clamping hole through the outer diameter of the head of the ultra-wide-angle lens and the first semicircular clamping hole, at this time, the base of the ultra-wide-angle lens is located in the accommodating groove, then the ultra-wide-angle lens is fixed on the fixed support through the fastening unit, then the light source module is used to irradiate towards the light-transmitting through hole, and the data processing module compares the image captured by the ultra-wide-angle lens with the preset standard image, so as to calculate the eccentricity data of the ultra-wide-angle lens. The overall structure is simple, the ultra-wide-angle lens is accurately positioned, the fixing is convenient, the testing mode is stable and reliable, and the problems of complex structure of the conventional ultra-wide-angle eccentricity testing device, inconvenient operation in large-scale full inspection testing operation, and high maintenance cost are solved.

[0008] Optionally, the fastening module comprises a rotating block and a fixing assembly, the rotating block is vertically rotatably connected to the fixed support, a second semicircular clamping hole is formed in the side wall of the fixed support close to the rotating block, when the rotating block abuts against the side wall of the fixed support, the second semicircular clamping hole and the first semicircular clamping hole form a whole circle, and the fixing assembly is used for locking the rotating block.

[0009] By adopting the technical scheme, after the ultra-wide-angle lens is pressed in the first semicircular clamping hole, the rotating block is rotated to abut against the side wall of the fixed support, and the rotating block is fixed through the fixing assembly, at this time, the second semicircular clamping hole on the rotating block and the first semicircular clamping hole on the fixed support form a whole circle, so as to realize accurate positioning and clamping of the ultra-wide-angle lens, and the structure is simple, the clamping operation of the ultra-wide-angle lens is convenient and fast, and the accuracy of positioning can be considered.

[0010] Optionally, the fixing assembly comprises a first magnet and a second magnet, the first magnet is arranged on the side wall of the rotating block close to the fixed support, and the second magnet is arranged on the side wall of the fixed support close to the rotating block, when the rotating block is pressed against the side wall of the fixed support, the first magnet and the second magnet are magnetically attracted to each other.

[0011] By adopting the technical scheme, when the rotating block is pressed against the side wall of the fixed support, the first magnet and the second magnet are magnetically attracted to each other to realize fixing of the rotating block, the fixing mode of the rotating block is simple and reliable, and the use is convenient.

[0012] Optionally, a buffer gasket is arranged on the bottom wall of the accommodating groove, and the buffer gasket is made of light-shielding material.

[0013] By adopting the technical scheme, the buffer gasket can play a buffering protection role on the ultra-wide-angle lens, and the buffer gasket made of the light-shielding material can also play a shielding role on the external light source, thereby reducing the interference of the external light source on the shooting effect and improving the accuracy of the lens eccentricity detection.

[0014] Optionally, the fixing support comprises a top base and a bottom base, the first semicircular clamping hole is arranged on the top base, the bottom base is provided with a positioning column at the top, and the top base is provided with a positioning hole at the bottom, the positioning column is inserted into the positioning hole in a fitting mode, and the bottom base is provided with a locking assembly for locking the bottom base and the top base.

[0015] By adopting the technical scheme, the fixing support is divided into the top base and the bottom base, so that when lenses of different sizes need to be detected, only the top base of the corresponding size needs to be replaced, thereby reducing the manufacturing cost of the test fixture of the application; the positioning column, the positioning hole and the locking assembly are arranged in a matched mode, so that the top base and the bottom base can be accurately aligned and locked, that is, the light transmission hole on the assembled top base and bottom base is aligned, thereby improving the accuracy of the detection result.

[0016] Optionally, the locking assembly comprises a first sliding block, a second sliding block and a driving component, the first sliding block is inserted into the positioning column in a vertical sliding mode, and the top of the first sliding block is provided with a first inclined surface; the second sliding block is inserted into the positioning column in a horizontal sliding mode, one end of the second sliding block inserted into the positioning column abuts against the first inclined surface, and the height of the first inclined surface along the horizontal direction gradually increases from the position close to the second sliding block to the position far away from the second sliding block; and the driving component is arranged on the bottom base, and the driving component is used to drive the first sliding block to move up and down.

[0017] By adopting the technical scheme, when the positioning column is inserted into the positioning hole, the first sliding block is driven to move upward by the driving component, so that the second sliding block is driven to move out of the positioning column under the action of the first inclined surface on the first sliding block, thereby making the first sliding block abut against the positioning hole, so as to realize the locking of the bottom base and the top base; conversely, the first sliding block is driven to move downward by the driving component, so that the second sliding block is driven to retract into the positioning column, thereby realizing the unlocking of the top base and the bottom base, and the structure is simple and the locking is convenient.

[0018] Optionally, the driving component comprises a locking rod and a return spring, the bottom of the first sliding block is provided with a second inclined surface, the locking rod is connected to the bottom base in a horizontal screw thread mode, the threaded end of the locking rod abuts against the second inclined surface, and the height of the second inclined surface along the horizontal direction gradually decreases from the position close to the locking rod to the position far away from the locking rod; one end of the return spring is connected to the positioning column, and the other end of the return spring is connected to the second sliding block, and the return spring has a tendency to make the second sliding block press against the first inclined surface.

[0019] By adopting the technical scheme, when the first slider needs to be driven to move upward, the locking rod only needs to be screwed tightly, and the locking rod abutting against the second inclined surface can drive the first slider to move upward, when the first slider needs to be driven to move downward, the locking rod only needs to be unscrewed, and the second slider abuts against the first inclined surface on the top of the first slider under the elastic force of the reset spring, so that the first slider moves downward; the up and down driving of the first slider only needs to screw and unscrew the locking rod, and the structure is simple and practical.

[0020] Optionally, a first annular groove is formed on the top surface of the base around the light transmission hole, a sealing ring is arranged in the first annular groove, a second annular groove is formed on the top surface of the base around the light transmission hole, and the sealing ring is clamped in the second annular groove.

[0021] By adopting the technical scheme, the cooperation of the first annular groove, the second annular groove and the sealing ring makes the sealing and shading effect of the joint of the light transmission hole on the top surface of the base and the bottom surface better, and the accuracy of the detection result is improved.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. The cooperation of the light transmission hole, the accommodating groove, the first semicircular clamping hole and the fastening unit on the fixed support makes the ultra-wide-angle lens be quickly and accurately positioned and locked, and the cooperation of the data processing module and the light source module makes the eccentricity test of the ultra-wide-angle lens stable and reliable, and improves the problems of the conventional ultra-wide-angle eccentricity test device, such as complex structure, inconvenient operation in large-scale full test operation and high maintenance cost;

[0024] 2. The fixed assembly and the rotating block are arranged, so that after the ultra-wide-angle lens is pressed in the first semicircular clamping hole, the rotating block is abutted on the side wall of the fixed support by rotating the rotating block, and the rotating block is fixed by the fixed assembly, so that the accurate positioning and fixing of the ultra-wide-angle lens are realized, and the use is more convenient;

[0025] 3. The cooperation of the top base, the bottom base and the locking assembly makes it only need to replace the corresponding size of the top base when different sizes of lenses need to be detected, so that the manufacturing cost of the test fixture of the present application is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laborious work.

[0027] Figure 1 It is the overall structure schematic diagram of the ultra-wide-angle lens in the background art of the present application;

[0028] Figure 2 is a schematic diagram of the overall structure of embodiment 1 of the present application;

[0029] Figure 3 is a schematic diagram of the overall structure of embodiment 2 of the present application;

[0030] Figure 4 is a schematic diagram of the cross-sectional structure of embodiment 2 of the present application.

[0031] Reference signs: 1, super wide-angle lens; 11, base; 12, head; 2, fixed support; 21, top seat; 211, accommodating groove; 212, light-transmitting through hole; 213, first semicircular clamping hole; 214, clearance groove; 215, positioning hole; 216, second annular groove; 22, bottom seat; 221, first annular groove; 222, sealing ring; 23, positioning column; 24, first sliding block; 241, first inclined surface; 242, second inclined surface; 25, second sliding block; 26, locking rod; 27, return spring; 3, fastening module; 31, rotating block; 311, light shield plate; 32, rotating pin; 33, second semicircular clamping hole; 34, first magnet; 35, second magnet; 4, data processing module; 5, light source module; 6, buffer gasket. DETAILED DESCRIPTION

[0032] The following will be described in detail below in combination with the accompanying Figures 1-4 The present application will be further described in detail.

[0033] Embodiment 1:

[0034] The embodiments of the present application disclose a super wide-angle eccentric test fixture. Referring to Figure 2 , the super wide-angle eccentric test fixture comprises a fixed support 2, a fastening module 3, a data processing module 4 and a light source module 5.

[0035] The top of the fixed support 2 is provided with a containing groove 211, the size of the containing groove 211 is slightly larger than the size of the base 11 of the ultra-wide-angle lens 1, the containing groove 211 is used for placing the base 11 of the ultra-wide-angle lens 1, and a light-transmitting through hole 212 is vertically formed in the bottom wall of the containing groove 211. The data processing module 4 is installed at the top of the fixed support 2, and the data processing module 4 is used for electrically connecting with the base 11 of the ultra-wide-angle lens 1. The light source module 5 is installed at the bottom of the fixed support 2, and the light source module 5 is used for projecting a light source towards the light-transmitting through hole 212. The side wall of the fixed support 2 is provided with a first semicircular clamping hole 213 coaxial with the light-transmitting through hole 212, the first semicircular clamping hole 213 communicates the containing groove 211 and the light-transmitting through hole 212, and the inner diameter of the first semicircular clamping hole 213 is matched with the outer diameter of the head 12 of the ultra-wide-angle lens 1, where the matching means that the inner wall of the first semicircular clamping hole 213 can tightly fit with the outer peripheral wall of the head 12 of the ultra-wide-angle lens 1. The fastening unit is arranged on the fixed support 2, and the fastening unit is used for fixing the ultra-wide-angle lens 1.

[0036] In use, the ultra-wide-angle lens 1 is horizontally close to the first semicircular clamping hole 213 on the fixed support 2, then the head 12 of the ultra-wide-angle lens 1 is pressed in the first semicircular clamping hole 213 by using the same outer diameter of the head 12 of the ultra-wide-angle lens 1 and the inner diameter of the first semicircular clamping hole 213, so that the head 12 of the ultra-wide-angle lens 1 is tightly fitted in the first semicircular clamping hole 213, at this time the base 11 of the ultra-wide-angle lens 1 is located in the containing groove 211 to prevent the ultra-wide-angle lens 1 from falling, then the ultra-wide-angle lens 1 is fixed on the fixed support 2 through the fastening unit; then the light source module 5 is used for irradiating towards the light-transmitting through hole 212, and the data processing module 4 compares the center points of the image shot by the ultra-wide-angle lens 1 and the preset standard image, so as to calculate the eccentricity data of the ultra-wide-angle lens 1. The overall structure of the test fixture is simple, the ultra-wide-angle lens 1 is accurately positioned, the fixing is convenient, the test mode is stable and reliable, and the problems of complex structure of the conventional ultra-wide-angle eccentricity test device, inconvenient operation in large-scale full inspection test operation, and high maintenance cost are improved.

[0037] Further, in order to reduce the frictional damage of the base 11 of the ultra-wide-angle lens 1 in the process of pressing and fitting in the first semicircular clamping hole 213, a buffer gasket 6 is arranged on the bottom wall of the containing groove 211. In order to reduce the interference of the external light source with the irradiation light source of the light source module 5, the buffer gasket 6 is made of light shielding material, and the black light shielding cotton product is used in the application.

[0038] Exemplarily, the fastening module 3 comprises a rotating block 31 and a fixing assembly. The rotating block 31 is rotatably connected to the fixed support 2 through a rotating pin 32 vertically inserted into the fixed support 2. The rotating block 31 is provided with a second semicircular clamping hole 33 on the side wall close to the fixed support 2. The second semicircular clamping hole 33 has the same diameter as the first semicircular clamping hole 213. When the rotating block 31 abuts against the side wall of the fixed support 2, the second semicircular clamping hole 33 and the first semicircular clamping hole 213 form a whole circle. At this time, the fixing assembly is used to lock the rotating block 31.

[0039] Specifically, the fixing assembly comprises a first magnet 34 and a second magnet 35. The first magnet 34 is installed on the side wall of the rotating block 31 close to the fixed support 2, and the second magnet 35 is installed on the side wall of the fixed support 2 close to the rotating block 31. The first magnet 34 and the second magnet 35 are at the same distance from the rotating pin 32. When the rotating block 31 is pressed against the side wall of the fixed support 2, the first magnet 34 and the second magnet 35 are magnetically attracted to each other.

[0040] After the head 12 of the ultra-wide-angle lens 1 is pressed into the first semicircular clamping hole 213, the rotating block 31 is rotated so that the rotating block 31 abuts against the side wall of the fixed support 2. At this time, the second semicircular clamping hole 33 on the rotating block 31 and the first semicircular clamping hole 213 on the fixed support 2 form a whole circle, thereby realizing accurate positioning and clamping of the ultra-wide-angle lens 1. At the same time, the first magnet 34 and the second magnet 35 are magnetically attracted to each other, pressing the rotating block 31 against the fixed support 2, thereby realizing stable fixing of the ultra-wide-angle lens 1.

[0041] In addition, in order to facilitate the staff to place the ultra-wide-angle lens 1, an empty slot 214 is provided on the side wall of the fixed support 2, which is communicated with the first semicircular clamping hole 213 and the light transmission hole 212. The provision of the empty slot 214 makes the staff hand-held ultra-wide-angle lens 1 horizontally close to the first semicircular clamping hole 213 without touching the fixed support 2, improving the convenience of operation. Moreover, the side wall of the empty slot 214 is also provided with a black light shielding cotton. Further, the rotating block 31 is provided with a light shielding plate 311, which is used to shield the empty slot 214. The black light shielding cotton and the baffle cooperate to shield external light sources.

[0042] The implementation principle of the ultra-wide-angle eccentricity test fixture of the embodiment of the present application is as follows: in use, the ultra-wide-angle lens 1 is moved horizontally to be close to the first semicircular clamping hole 213 on the fixed support 2 until the head 12 of the ultra-wide-angle lens 1 is pressed in the first semicircular clamping hole 213, at this time, the base 11 of the ultra-wide-angle lens 1 is located in the accommodating groove 211. Then the rotating block 31 is rotated to make the rotating block 31 abut against the side wall of the fixed support 2, at this time, the second semicircular clamping hole 33 on the rotating block 31 and the first semicircular clamping hole 213 on the fixed support 2 enclose a whole circle, thereby realizing accurate positioning and clamping of the ultra-wide-angle lens 1. At the same time, the first magnet 34 and the second magnet 35 are magnetically attracted to each other, thereby realizing fixation of the rotating block 31, at this time, the ultra-wide-angle lens 1 is stably fixed on the fixed support 2.

[0043] Then light is irradiated into the light-transmitting through hole 212 through the light source module 5, the data processing module 4 compares the image shot by the ultra-wide-angle lens 1 with the preset standard image, thereby calculating the eccentricity data of the ultra-wide-angle lens 1, the overall structure is simple, the ultra-wide-angle lens 1 is accurately positioned, the fixation is convenient, the test mode is stable and reliable, and the problems of complex structure of the conventional ultra-wide-angle eccentricity test device, inconvenient operation in large-scale full inspection test operation, and high maintenance cost are improved.

[0044] Embodiment 2

[0045] The embodiment of the present application discloses a special plate anti-deviation blocking mechanism, the difference between the embodiment 2 of the present application and the embodiment 1 of the present application is that Figures 3-4 Due to the need of detection, the fixed support 2 is mostly long in length, when different sizes of the ultra-wide-angle lens 1 need to be tested, the cost of replacing the whole fixed support 2 is high. In this regard, the fixed support 2 comprises a top seat 21 and a bottom seat 22, wherein the accommodating groove 211, the first semicircular clamping hole 213 and the clearance groove 214 are all arranged on the top seat 21, and the rotating block 31 is also arranged on the top seat 21, and the light-transmitting through hole 212 penetrates through the top seat 21 and the bottom seat 22.

[0046] The bottom seat 22 is welded with a positioning column 23 at the top, the bottom seat 21 is provided with a positioning hole 215, the inner diameter of the positioning hole 215 is the same as the diameter of the positioning column 23, and the position of the positioning hole 215 on the top seat 21 corresponds to the position of the positioning column 23 on the bottom seat 22, when the light-transmitting through hole 212 on the top seat 21 and the bottom seat 22 is aligned, the positioning column 23 is correspondingly inserted into the positioning hole 215. The bottom seat 22 is provided with a locking assembly for locking the bottom seat 22 and the top seat 21. By splitting the fixed support 2 into the top seat 21 and the bottom seat 22, when different sizes of lenses need to be detected, only the corresponding size of the top seat 21 needs to be replaced, thereby reducing the manufacturing cost of the test fixture of the present application.

[0047] The locking assembly comprises a first sliding block 24, a second sliding block 25 and a driving component. The first sliding block 24 is vertically slidably inserted into the positioning column 23 and further inserted into the base 22. A first inclined surface 241 is formed on the top of the first sliding block 24. The second sliding block 25 is transversely slidably inserted into the positioning column 23. The second sliding block 25 is inserted into one end of the positioning column 23 and abuts against the first inclined surface 241. The height of the first inclined surface 241 along the moving direction of the second sliding block 25 gradually increases from the position close to the second sliding block 25 to the position far away from the second sliding block 25. The driving component is arranged on the base 22 and is used to drive the first sliding block 24 to move up and down.

[0048] When the positioning column 23 is inserted into the positioning hole 215, the first sliding block 24 is driven to move up by the driving component. The second sliding block 25 is driven to move out of the positioning column 23 under the action of the first inclined surface 241 on the first sliding block 24. Thus, the first sliding block 24 abuts against the inner wall of the positioning hole 215, thereby realizing the locking of the base 22 and the top base 21. When the first sliding block 24 is driven to move down by the driving component, the second sliding block 25 is retracted into the positioning column 23, thereby releasing the locking of the top base 21 and the base 22.

[0049] Specifically, the driving component comprises a locking rod 26 and a return spring 27. A second inclined surface 242 is formed on the bottom of the first sliding block 24. The locking rod 26 is transversely screwed on the base 22. The threaded end of the locking rod 26 abuts against the second inclined surface 242. The height of the second inclined surface 242 along the length direction of the locking rod 26 gradually decreases from the position close to the locking rod 26 to the position far away from the locking rod 26. One end of the return spring 27 is connected with the inner wall of the cavity of the positioning column 23 for accommodating the first sliding block 24. The other end of the return spring 27 is connected with the second sliding block 25. The return spring 27 tends to press the second sliding block 25 against the first inclined surface 241. When it is needed to drive the first sliding block 24 to move up, the locking rod 26 is only needed to be screwed tightly. The locking rod 26 abutting against the second inclined surface 242 can drive the first sliding block 24 to move up. When it is needed to drive the first sliding block 24 to move down, the locking rod 26 is only needed to be unscrewed. The second sliding block 25 abuts against the first inclined surface 241 on the top of the first sliding block 24 under the elastic force of the return spring 27, thereby driving the first sliding block 24 to move down. The structure is simple and practical.

[0050] Further, a first annular groove 221 is formed on the top surface of the base 22 around the light-transmitting through hole 212. A second annular groove 216 is formed on the top base 21 around the light-transmitting through hole 212. The first annular groove 221 and the second annular groove 216 have the same size. A sealing ring 222 is arranged in the first annular groove 221. When the base 22 and the top base 21 abut against each other, the sealing ring 222 is simultaneously clamped in the second annular groove 216. The arrangement of the sealing ring 222 seals the joint of the light-transmitting through holes 212 on the base 22 and the top base 21, thereby improving the light-shielding effect and the accuracy of the detection result.

[0051] The implementation principle of the super wide-angle eccentricity test fixture is as follows: when different sizes of super wide-angle lenses 1 need to be measured, only the top seat 21 of the appropriate size needs to be installed on the base 22 through the cooperation of the positioning column 23 and the positioning hole 215, and then the locking rod 26 is tightened. Tightening the locking rod 26 makes the locking rod 26 press against the second inclined surface 242 to drive the first sliding block 24 to move upward, and the second sliding block 25 is driven out of the positioning column 23 under the action of the first inclined surface 241 on the top of the first sliding block 24, so that the first sliding block 24 is tightly pressed in the positioning hole 215, and the fixing of the base 22 and the top seat 21 is realized. In any case, loosening the locking rod 26, the second sliding block 25 is retracted into the positioning column 23 under the elastic force of the return spring 27, and the unlocking of the base 22 and the top seat 21 is realized, which is simple and practical in structure.

[0052] The above are optional embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. An ultra-wide-angle off-center test fixture, characterized by: The utility model relates to a super wide-angle lens fixing device, including fixed support (2), fastening module (3), data processing module (4) and light source module (5), the top of fixed support (2) is opened with light transmission through -hole (212) along the vertical, the top of fixed support (2) is opened with the accommodating groove (211) for with the base (11) of super wide-angle lens (1) adaptation, the first semicircle engagement hole (213) coaxial with light transmission through -hole (212) is opened on the side wall of fixed support (2), the first semicircle engagement hole (213) inner diameter with the head (12) outer diameter of super wide-angle lens (1) adaptation, fastening module (3) is located on fixed support (2) for fixed super wide-angle lens (1), data processing module (4) is located on the top of fixed support (2), and data processing module (4) is used for with the base (11) electric connection of super wide-angle lens (1), light source module (5) is located on the bottom of fixed support (2), and light source module (5) is used for the illumination towards light transmission through -hole (212) inside.

2. The ultra-wide-angle off-center test fixture of claim 1, wherein: The fastening module (3) includes a rotating block (31) and a fixing assembly, the rotating block (31) is rotatably connected to the fixed support (2) vertically, a second semicircle engagement hole (33) is formed on the side wall of the rotating block (31) close to the fixed support (2), when the rotating block (31) is pressed against the side wall of the fixed support (2), the second semicircle engagement hole (33) and the first semicircle engagement hole (213) form a complete circle, and the fixing assembly is used for locking the rotating block (31).

3. The ultra-wide-angle off-center test fixture of claim 2, wherein: The fixing assembly includes a first magnet (34) and a second magnet (35), the first magnet (34) is arranged on the side wall of the rotating block (31) close to the fixed support (2), the second magnet (35) is arranged on the side wall of the fixed support (2) close to the rotating block (31), when the rotating block (31) is pressed against the side wall of the fixed support (2), the first magnet (34) and the second magnet (35) are magnetically attracted to each other.

4. The ultra-wide-angle off-center test fixture of claim 1, wherein: The accommodating groove (211) is provided with a buffer gasket (6) on the bottom wall, and the buffer gasket (6) is made of light shielding material.

5. The ultra-wide-angle off-center test fixture of claim 1, wherein: The fixed support (2) includes a top seat (21) and a bottom seat (22), the first semicircle engagement hole (213) is formed on the top seat (21), the bottom seat (22) is provided with a positioning column (23) on the top, the top seat (21) is provided with a positioning hole (215) on the bottom, the positioning column (23) is inserted into the positioning hole (215), and the bottom seat (22) is provided with a locking assembly for locking the bottom seat (22) and the top seat (21).

6. The ultra-wide-angle off-center test fixture of claim 5, wherein: The locking assembly comprises a first sliding block (24), a second sliding block (25) and a driving component, the first sliding block (24) is vertically slidably inserted into the positioning column (23), and a first inclined surface (241) is formed in the top of the first sliding block (24); the second sliding block (25) is transversely slidably inserted into the positioning column (23), one end of the second sliding block (25) inserted into the positioning column (23) abuts against the first inclined surface (241), and the height of the first inclined surface (241) along the transverse direction gradually increases from the position close to the second sliding block (25) to the position far away from the second sliding block (25); and the driving component is arranged on the base (22) and is used for driving the first sliding block (24) to move up and down.

7. The ultra-wide-angle off-center test fixture of claim 6, wherein: The driving component comprises a locking rod (26) and a reset spring (27), a second inclined surface (242) is formed in the bottom of the first sliding block (24), the locking rod (26) is transversely screwed on the base (22), the threaded end of the locking rod (26) abuts against the second inclined surface (242), and the height of the second inclined surface (242) along the transverse direction gradually decreases from the position close to the locking rod (26) to the position far away from the locking rod (26); one end of the reset spring (27) is connected with the positioning column (23), the other end of the reset spring (27) is connected with the second sliding block (25), and the reset spring (27) has a tendency to press the second sliding block (25) against the first inclined surface (241).

8. The ultra-wide-angle off-center test fixture of claim 5, wherein: A first annular groove (221) is formed in the top surface of the base (22) around the light-transmitting through hole (212), a sealing ring (222) is arranged in the first annular groove (221), a second annular groove (216) is formed in the top base (21) around the light-transmitting through hole (212), and the sealing ring (222) is clamped in the second annular groove (216).

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