Optical measurement equipment for prism test

Abstract

The utility model relates to the technical field of optical measuring equipment, and discloses optical measuring equipment for prism testing, which comprises a testing barrel, an industrial camera, a supporting shaft, an interferometer and an image processor are arranged on the testing barrel, the industrial camera is arranged on the side wall of the testing barrel, the supporting shaft is arranged at the bottom of the testing barrel right below a prism, and the interferometer is arranged on the supporting shaft. An interferometer is mounted on the supporting shaft; the test barrel is provided with an offset assembly used for adjusting the deflection angle of the prism, and the offset assembly is provided with a clamping assembly used for clamping the prism. According to the utility model, the offset assembly is arranged, so that the interferometer can test a plurality of surfaces of the prism in one test, the problem that only one surface can be tested each time in the prior art is solved, and the effect of improving the test efficiency is realized; by arranging the clamping assembly, the prism can be prevented from falling off in the deviation process; and prisms with different diameters or widths can be clamped, so that the application range is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of optical measurement equipment, and specifically, it is an optical measurement equipment for prism testing. Background Art

[0002] A prism is an optical device, and its main function is to decompose light into its component colors or spectra according to different wavelengths. It usually consists of multiple planar surfaces, at least one of which is inclined so that light is refracted when incident. This property makes prisms widely used in optical devices such as spectral analysis instruments, telescopes, and microscopes. A corner cube prism is a type of prism that has multiple inclined surfaces and is widely used in scenarios such as optical communication, spectral analysis, and imaging systems.

[0003] Before using a corner cube prism, it is usually tested to ensure that its performance meets the standards. Existing equipment usually uses an interferometer, an industrial camera, a spectrometer, etc. to sequentially test multiple inclined surfaces of the corner cube prism to detect whether the mirror surface is flat and whether there are defects such as water ripples and scratches, so as to ensure that the prism can be applied to experimental scenarios. However, when the existing equipment tests the corner cube prism, it is necessary to continuously adjust the deflection position of the corner cube prism to complete the tests of multiple mirror surfaces and different regions on the same mirror surface, which is rather cumbersome and inefficient. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an optical measurement equipment for prism testing to solve the problem that existing equipment cannot complete the optical test of multiple surfaces of a corner cube prism at one time.

[0005] The utility model is realized through the following technical solutions: an optical measurement equipment for prism testing, including a test barrel, on which an industrial camera, a support shaft, an interferometer, and an image processor are arranged. The industrial camera is arranged on the side wall of the test barrel, the support shaft is installed at the bottom of the test barrel directly below the prism, and the interferometer is installed on the support shaft; an offset component for adjusting the deflection angle of the prism is installed on the test barrel, and a clamping component for clamping the prism is installed on the offset component.

[0006] The offset component includes an offset support ring for placing the prism and a plurality of toggle rods arranged on the support shaft. A transmission rod is movably connected to the toggle rod, and an adjusting rod is rotatably connected to the transmission rod. The adjusting rod is rotatably connected to the offset support ring; when the toggle rod is rotated, the offset support ring tilts accordingly to realize the adjustment of the deflection angle of the prism.

[0007] While realizing multi-surface testing, this device allows observing optical solitons and periodic solutions in different optical paths. This characteristic provides an experimental basis for the theory of nonlinear optical dynamics. For example, the nonlinear propagation behavior of light can be verified through the optical soliton effect under specific conditions.

[0008] To better implement the present utility model, the offset assembly further includes a first transmission shaft, a second transmission shaft, and a third transmission shaft. The first transmission shaft, the second transmission shaft, and the third transmission shaft are respectively fixedly connected to a toggle rod; the first transmission shaft, the second transmission shaft, and the third transmission shaft are respectively rotatably connected to a support shaft; a first transmission gear is fixedly connected to the first transmission shaft, a second transmission gear is fixedly connected to the second transmission shaft, and a third transmission gear is fixedly connected to the third transmission shaft; a plurality of motors are installed on the test barrel, a drive gear is fixedly connected to the motor, and the third transmission gear, the second transmission gear, and the first transmission gear are respectively meshed with a drive gear.

[0009] To better implement the present utility model, a cylinder is installed on the toggle rod, and the output end of the cylinder is connected to the transmission rod.

[0010] To better implement the present utility model, the clamping assembly includes a plurality of clamping rods slidably connected to the offset support ring. A tension spring is arranged between the clamping rod and the offset support ring, and a clamping plate is fixedly installed at the end of the clamping rod.

[0011] To better implement the present utility model, an anti-slip pad is arranged on the clamping plate, and the anti-slip pad is any one of a rubber layer, a polyurethane layer, and a silicone layer; the anti-slip pad helps to reduce the displacement caused by optical measurement and ensures the coherence of the observation process of maintaining the optical soliton and the periodic solution.

[0012] To better implement the present utility model, a detachable light-shielding cover is arranged on the test barrel.

[0013] To better implement the present utility model, a through hole is arranged on the support shaft for laying the lines of the interferometer.

[0014] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0015] (1) By setting the offset assembly, the present utility model enables the interferometer to complete the testing of multiple faces of the prism in one test, solves the problem that the prior art can only test one face at a time, and achieves the effect of improving the testing efficiency.

[0016] (2) By setting the clamping assembly, the present utility model can prevent the prism from falling during the offset process; and can clamp prisms with different diameters or widths, improving its application range.

[0017] (3) The present utility model provides convenient conditions for experimentally verifying non-linear optical theories such as optical solitons and periodic solutions, enabling complex optical phenomena to be observed and verified in actual operations. Description of the Drawings

[0018] Figure 1 This is a schematic diagram of the external structure of the present utility model.

[0019] Figure 2 This is a schematic diagram of the internal structure of the present utility model.

[0020] Figure 3 This is a schematic diagram of the offset component structure from a top-down perspective.

[0021] Figure 4 This is a cross-sectional view of the offset component structure.

[0022] Figure 5 This is a schematic diagram of the offset component structure.

[0023] Figure 6 This is an exploded view of the structures of the first drive shaft, the second drive shaft, and the third drive shaft.

[0024] Figure 7 This is a schematic diagram of the clamping component structure.

[0025] Wherein: 2 - offset component; 3 - clamping component; 101 - test barrel; 102 - light-shielding cover; 103 - industrial camera; 104 - support shaft; 105 - interferometer; 201 - motor; 202 - drive gear; 203 - offset support ring; 204 - toggle rod; 205 - adjusting rod; 206 - transmission rod; 207 - cylinder; 208 - first drive shaft; 209 - second drive shaft; 210 - third drive shaft; 211 - third transmission gear; 212 - second transmission gear; 213 - first transmission gear; 301 - clamping rod; 302 - tension spring; 303 - anti-slip pad; 304 - clamping plate. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Embodiment 1:

[0028] This embodiment provides an optical measurement device for prism testing, specifically as Figures 1-4As shown, it includes a test barrel 101, on which an industrial camera 103, a support shaft 104, an interferometer 105, and an image processor are arranged. The industrial camera 103 is arranged on the side wall of the test barrel 101, the support shaft 104 is installed at the bottom of the test barrel 101 directly below the prism, and the interferometer 105 is installed on the support shaft 104; the test barrel 101 is installed with an offset component 2 for adjusting the deflection angle of the prism, and the offset component 2 is installed with a clamping component 3 for clamping the prism.

[0029] The offset assembly 2 includes an offset support ring 203 for supporting the prism, three toggle rods 204 arranged on the support shaft 104, the toggle rods 204 are movably connected to the transmission rods 206, the transmission rods 206 are rotatably connected to the adjustment rods 205, and the adjustment rods 205 are rotatably connected to the offset support ring 203; when the toggle rods 204 are partially rotated, the offset support ring 203 is tilted accordingly, thereby realizing the adjustment of the deflection angle of the prism.

[0030] The industrial camera 103, the interferometer 105, and the image processor are all existing technologies, and those skilled in the art can purchase them according to specific needs. The specific models are not described here.

[0031] After the prism to be tested is firmly placed on the clamping assembly 3, the interferometer 105 and the industrial camera 103 are started, and one or two toggle rods 204 are toggled. At this time, the toggle rod 204 drives the transmission rod 206 to revolve, and the transmission rod 206 pulls the offset support ring 203 through the adjustment rod 205, and the offset support ring 203 begins to tilt, that is, the clamping assembly 3 thereon drives the prism to tilt synchronously. At this time, the transmitting end of the interferometer 105 shines on one surface of the prism, and the interferometer 105 starts to shoot the irradiation situation. The photographed information is transmitted to the image processor, and then automatically identified to filter out defective prisms; then the three toggle rods 204 rotate at the same time, causing the offset support ring 203 to rotate, and at this time the prism also rotates synchronously, and then the prism offset step is repeated. At this time, the interferometer 105 tests the other side of the prism until the test of all the areas to be tested of the prism is completed.

[0032] By setting the offset component 2, the interferometer 105 can complete the test of multiple surfaces of the prism in one test, which solves the problem that the prior art can only test one surface at a time, and achieves the effect of improving the test efficiency.

[0033] Embodiment 2:

[0034] This embodiment is further expanded on the basis of Embodiment 1. Figures 4-6As shown, the offset component 2 further includes a first transmission shaft 208, a second transmission shaft 209, and a third transmission shaft 210. The first transmission shaft 208, the second transmission shaft 209, and the third transmission shaft 210 are respectively fixedly connected to a toggle lever 204. The first transmission shaft 208, the second transmission shaft 209, and the third transmission shaft 210 are respectively rotatably connected to the support shaft 104. A first transmission gear 213 is fixedly connected to the first transmission shaft 208, a second transmission gear 212 is fixedly connected to the second transmission shaft 209, and a third transmission gear 211 is fixedly connected to the third transmission shaft 210. Three motors 201 are installed on the test barrel 101, and a drive gear 202 is fixedly connected to the motor 201. The third transmission gear 211, the second transmission gear 212, and the first transmission gear 213 are respectively meshed with a drive gear 202.

[0035] When it is necessary to rotate a certain toggle lever 204, only the corresponding motor 201 needs to be started. For example, after the motor 201 is started, it drives the drive gear 202, and the drive gear 202 drives the first transmission gear 213 meshed with it. The first transmission gear 213 causes the corresponding toggle lever 204 to rotate through the second transmission shaft 209. By setting the first transmission shaft 208, the second transmission shaft 209, and the third transmission shaft 210, the driving points of the three toggle levers 204 can be dispersed, facilitating the three motors 201 to drive different toggle levers 204 respectively. The motor 201 is selected as a stepping motor to achieve precise control of the offset amount of the offset support ring 203.

[0036] As Figure 4 shown, a cylinder 207 is installed on the toggle lever 204, and the output end of the cylinder 207 is connected to the transmission rod 206. The three cylinders 207 are started synchronously to realize the overall longitudinal movement of the offset support ring 203, the adjusting rod 205, and the transmission rod 206, thereby adjusting the distance between the prism and the interferometer 105 to adapt to the prism tests of various specifications and lengths.

[0037] As Figure 7 shown, the clamping component 3 includes three clamping rods 301 slidably connected to the offset support ring 203. A tension spring 302 is arranged between the clamping rod 301 and the offset support ring 203, and a clamping plate 304 is fixedly installed at the end of the clamping rod 301. The clamping plate 304 on the clamping rod 301 can clamp the prism by the pulling force of the tension spring 302 to keep the prism stable and prevent the prism from falling during the offset process. Moreover, due to the cooperation of the tension spring 302 and the clamping rod 301, the clamping plate 304 can clamp prisms with different diameters or widths, improving its application range.

[0038] An anti-slip pad 303 is provided on the clamping plate 304. The anti-slip pad 303 is any one of a rubber layer, a polyurethane layer, and a silicone layer. By providing the anti-slip pad 303, the friction between the clamping plate 304 and the prism can be enhanced, and further prevent the prism from falling during the offset process.

[0039] As Figure 1 shown, a detachable light-shielding cover 102 is provided on the test barrel 101. Before testing the prism, cover the light-shielding cover 102 on the test barrel 101 to achieve the purpose that external light cannot enter the test barrel 101, which can reduce the influence of external light on the operation of the interferometer 105, and make the image obtained by the industrial camera 103 free from interference and easy to identify.

[0040] As Figure 4 shown, a through hole is provided on the support shaft 104 for laying the circuit of the interferometer 105. Receiving the circuit of the interferometer 105 into the through hole of the support shaft 104 can avoid problems such as entanglement caused by the exposure of the circuit, effectively reduce the failure rate, and improve the aesthetics.

[0041] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. An optical measuring device for prism testing, comprising a test barrel (101), wherein the test barrel (101) is provided with an industrial camera (103), a support shaft (104), an interferometer (105), and an image processor, wherein: The industrial camera (103) is arranged on the side wall of the test barrel (101); the support shaft (104) is installed at the bottom of the test barrel (101) directly below the prism; and the interferometer (105) is installed on the support shaft (104); an offset component (2) for adjusting the deflection angle of the prism is installed on the test barrel (101); and a clamping component (3) for clamping the prism is installed on the offset component (2); The offset assembly (2) comprises an offset support ring (203) for placing a prism, a plurality of toggle rods (204) arranged on a support shaft (104), the toggle rods (204) being movably connected to a transmission rod (206), the transmission rod (206) being rotatably connected to an adjustment rod (205), and the adjustment rod (205) being rotatably connected to the offset support ring (203); when the toggle rods (204) are rotated, the offset support ring (203) is tilted accordingly, thereby achieving adjustment of the deflection angle of the prism.

2. An optical measuring device for prism testing according to claim 1, characterized in that: The offset assembly (2) further comprises a first transmission shaft (208), a second transmission shaft (209), and a third transmission shaft (210), wherein the first transmission shaft (208), the second transmission shaft (209), and the third transmission shaft (210) are respectively fixedly connected to a toggle rod (204); the first transmission shaft (208), the second transmission shaft (209), and the third transmission shaft (210) are respectively rotatably connected to the support shaft (104); the first transmission shaft (208) is fixedly connected to a first transmission gear (213), the second transmission shaft (209) is fixedly connected to a second transmission gear (212), and the third transmission shaft (210) is fixedly connected to a third transmission gear (211); a plurality of motors (201) are mounted on the test barrel (101), the motors (201) are fixedly connected to a driving gear (202), and the third transmission gear (211), the second transmission gear (212), and the first transmission gear (213) are respectively meshed with a driving gear (202).

3. The optical measuring device for prism testing according to claim 1, characterized in that: A cylinder (207) is mounted on the toggle rod (204), and an output end of the cylinder (207) is connected to the transmission rod (206).

4. The optical measuring device for prism testing according to claim 1, characterized in that: The clamping assembly (3) comprises a plurality of clamping rods (301) slidably connected to the offset support ring (203), a tension spring (302) is provided between the clamping rods (301) and the offset support ring (203), and a clamping plate (304) is fixedly mounted on the end of the clamping rod (301).

5. The optical measuring device for prism testing according to claim 4, characterized in that: The clamping plate (304) is provided with an anti-skid pad (303), and the anti-skid pad (303) is any one of a rubber layer, a polyurethane layer, and a silicone layer.

6. The optical measuring device for prism testing according to claim 1, characterized in that: The test barrel (101) is provided with a detachable light shield (102).

7. The optical measuring device for prism testing according to claim 1, characterized in that: The support shaft (104) is provided with a through hole for laying the line of the interferometer (105).

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