CN213842594U - Lens luminousness detection light path and equipment - Google Patents

Abstract

The utility model discloses a camera lens luminousness detects light path, equipment. Lens luminousness detects light path, including fixed section of thick bamboo, entrance pupil, first lens, second lens, third lens and exit pupil locate fixed section of thick bamboo from top to bottom in proper order on. Lens luminousness check out test set includes base, clamping device, detection light path and integrating sphere device, and the integrating sphere device is located on the base, and lens luminousness detection light path, camera lens, integrating sphere device are located same straight line. The light transmittance of the long and short tube lens can be detected by using the light path, the detection result error is small, and the universality is strong; the equipment using the light path can detect the straight-tube lenses with various sizes and lengths, and has strong universality. The equipment is simple in structure, easy and convenient to operate, low in operation threshold and high in practicability.

Description

Lens luminousness detection light path and equipment

Technical Field

The utility model relates to an optical detection device, equipment technical field, in particular to camera lens luminousness detects light path and camera lens luminousness check out test set.

Background

The light transmittance is an important index for the definition of an object to be viewed and also an important index for representing the optical performance of the dielectric material, especially the light transmittance of a lens, so that a manufacturer judges whether the optical performance of the dielectric material is qualified or not by detecting the transmittance and setting a proper quality inspection standard.

SUMMERY OF THE UTILITY MODEL

According to an aspect of the utility model, a camera lens luminousness detects light path is provided, including fixed section of thick bamboo, entrance pupil, first lens, second lens, third lens and exit pupil, fixed section of thick bamboo is installed on the upper portion of bracing piece, and the upper and lower both ends of fixed section of thick bamboo are located respectively to entrance pupil and exit pupil, and in the entrance pupil was located to first lens, second lens, third lens were located in the fixed section of thick bamboo, first lens, second lens, third lens straight line distribution.

The utility model provides a light path that is used for carrying out the detection to the luminousness of camera lens. In the optical path, a fixed cylinder is used as a mounting support of each optical path part, an entrance pupil, a first lens, a second lens, a third lens and an exit pupil are sequentially distributed on the fixed cylinder from top to bottom, the entrance pupil receives light beams, the light beams are shaped through the first lens, the second lens and the third lens, and finally the light beams are output through the exit pupil. The light transmittance of the long and short tube lens can be detected by using the light path, the detection result error is small, and the universality is strong.

In some embodiments, the first optic is a plano-convex lens, the radius of the arc of the upper convex surface of the first optic is 8.26mm, and the center thickness of the first optic is 2.02 mm.

Thus, a plano-convex lens having a circular arc radius of 8.26mm and a center thickness of 2.02mm was used as the first lens.

In some embodiments, the second optic is a biconvex lens, the radius of the arc of the upper convex surface of the second optic is 18.27mm, the radius of the arc of the lower convex surface of the second optic is 28.57mm, and the center thickness of the second optic is 3.11 mm.

Thus, a biconvex lens with upper and lower arc radii of 18.27mm and 28.57mm, respectively, and a center thickness of 3.11mm was used as the second lens.

In some embodiments, the third lens is a biconvex lens, the arc radius of the upper convex surface and the arc radius of the lower convex surface of the third lens are both 76.29mm, and the center thickness of the third lens is 5 mm.

Thus, a biconvex lens with upper and lower arc radii of 76.29mm and 76.29mm and a center thickness of 5mm was used as the third lens.

In some embodiments, the first lens is at a distance of 3.11mm from the second lens and the second lens is at a distance of 204.01mm from the third lens.

Therefore, the first lens, the second lens and the third lens can be guaranteed to work stably through the arrangement of the relative relation among the first lens, the second lens and the third lens.

In some embodiments, the exit pupil is arranged at the lower end of the fixed cylinder through an adjusting sleeve, a plurality of limiting columns are arranged on the outer wall array of the lower end of the fixed cylinder, a plurality of adjusting grooves are arranged on the outer wall of the adjusting sleeve, and the adjusting grooves are matched with the limiting columns; through the rotation adjusting sleeve, the adjusting sleeve can move forward and backward along the vertical direction.

Therefore, the detection light path takes the fixed cylinder as a mounting bracket of each light path part, the entrance pupil, the first lens, the second lens, the third lens and the exit pupil are sequentially distributed on the fixed cylinder from top to bottom, the entrance pupil receives the light beams, the light beams are shaped through the first lens, the second lens and the third lens, and finally the light beams are output through the exit pupil.

Lens luminousness check out test set, including lens luminousness detection light path, still include base, clamping device and integrating sphere device, on the integrating sphere device located the base, be equipped with the bracing piece on the base, the upper portion of bracing piece is located to lens luminousness detection light path, and clamping device locates the middle part of bracing piece, and clamping device has placed the camera lens, and lens luminousness detection light path, camera lens, integrating sphere device are located same straight line.

The utility model also provides a can be to the luminousness of camera lens carry out the equipment that detects, assay. In the equipment, a lens is clamped on a clamping device, a light beam is input from an input end of a detection light path, is shaped in the detection light path and then penetrates through the lens, and then is collected in an integrating sphere device, and the integrating sphere device carries out data processing on the light beam. This equipment can detect multiple straight section of thick bamboo camera lens, and this equipment structure is simple, and is easy and simple to handle, and the operation threshold is low, and the practicality is strong.

In some embodiments, the detection light path is disposed on the upper portion of the support rod through an adjusting mechanism, the adjusting mechanism includes an adjusting block and a fixing ring, the fixing ring is disposed on the adjusting block, the detection light path is fixed on the fixing ring, and the adjusting block is adjustably disposed on the support rod.

Therefore, the relative height of the detection light path can be adjusted, and the lenses with different lengths can be detected, so that the universality of the equipment is improved.

In some embodiments, the clamping device comprises a first clamping mechanism and a second clamping mechanism which are distributed up and down, and the first clamping mechanism and the second clamping mechanism are both adjustably arranged on the supporting rod.

Therefore, the upper end and the lower end of the lens are clamped through the first clamping mechanism and the second clamping mechanism which are distributed up and down, and the first clamping mechanism and the second clamping mechanism can be adjusted in a sliding mode in the vertical direction, so that the lens with different lengths can be clamped.

In some embodiments, the integrating sphere device comprises an integrating sphere and a data processor, the integrating sphere is arranged on the base and is positioned right below the detection light path, and the data processor is arranged on the base and is in optical fiber connection with the integrating sphere device.

Therefore, the integrating sphere is connected with the data processor through the optical fiber, and the data processor conducts the data to external analysis equipment after processing the data; and the software on the analysis equipment receives the data conducted back by the processor to realize analysis measurement.

The beneficial effects of the utility model are that: this equipment can detect the straight section of thick bamboo camera lens of multiple not unidimensional length, and the commonality is strong. The equipment is simple in structure, easy and convenient to operate, low in operation threshold and high in practicability.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of a lens transmittance detection device according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional structure diagram of the lens transmittance detection apparatus shown in fig. 1.

Fig. 3 is a schematic cross-sectional structure diagram of a detection light path in the lens transmittance detection apparatus shown in fig. 2.

Fig. 4 is a schematic plan view of the lens components in the detection optical path shown in fig. 3.

Fig. 5 is a schematic perspective view of a first clamping mechanism in the lens transmittance detection apparatus shown in fig. 1.

Fig. 6 is a schematic perspective view of a second clamping mechanism in the lens transmittance detection apparatus shown in fig. 1.

Fig. 7 is a schematic plan view of a detection system using the lens transmittance detection apparatus shown in fig. 1.

Reference numbers in the figures: 0-base, 01-support rod, 1-detection light path, 11-fixed cylinder, 111-limit column, 12-entrance pupil, 13-first lens, 14-second lens, 15-third lens, 16-exit pupil, 17-adjusting sleeve, 171-adjusting groove, 18-adjusting mechanism, 181-adjusting block, 182-fixed ring, 2-clamping device, 21-first clamping mechanism, 211-first mounting seat, 212-first guide rod, 213-first fixed side plate, 214-first clamp component, 2141-adjusting rod, 2142-first slide block, 2143-first clamp piece, 22-second clamping mechanism, 221-second mounting seat, 222-second guide rod, 223-second fixed side plate, 224-second clamp component, 2241-pull rod, 2242-second slide block, 2243-second clamping piece, 2244-spring, 2245-supporting piece, 3-integrating sphere device, 31-integrating sphere, 32-data processor, 33-outer cover, 4-light source device, 5-analysis device and a-lens.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1-2 schematically show lens light transmittance detection apparatus according to an embodiment of the present invention, including a base 0, a detection light path 1, a clamping device 2, and an integrating sphere device 3. A protective outer cover 33 is arranged on the base 0, the integrating sphere device 3 is arranged on the base 0 and is positioned in the protective outer cover 33, a through hole is formed in the protective outer cover 33, and a receiving end of the integrating sphere device 3 receives incident light beams through the through hole; the base 0 is provided with a support rod 01, the detection light path 1 is arranged on the upper portion of the support rod 01, the clamping device 2 is arranged in the middle of the support rod 01, the clamping device 2 is provided with a lens a, and the detection light path 1, the lens a and the integrating sphere device 3 are located on the same straight line.

The utility model provides a can be to the luminousness of camera lens a carry out equipment that detects, assay. In the device, a lens a is clamped on a clamping device 2, light beams are input from an input end of a detection light path 1, are shaped in the detection light path 1 and then penetrate through the lens a, and then are collected in an integrating sphere device 3, and the integrating sphere device 3 processes the light beams. This equipment can detect multiple straight section of thick bamboo camera lens a, and this equipment structure is simple, and is easy and simple to handle, and the operation threshold is low, and the practicality is strong.

With reference to fig. 2-3, the detection optical path 1 includes a fixed cylinder 11, an entrance pupil 12, a first lens 13, a second lens 14, a third lens 15, and an exit pupil 16. The fixed cylinder 11 is in a straight cylinder shape, the inside of the fixed cylinder is hollow, and the fixed cylinder 11 is arranged at the upper part of the support rod 01; the entrance pupil 12 and the exit pupil 16 are respectively arranged at the upper end and the lower end of the fixed cylinder 11; the first lens 13 and the second lens 14 are disposed in the entrance pupil 12, the third lens 15 is disposed in the fixed cylinder 11, and the first lens 13, the second lens 14, and the third lens 15 are linearly distributed from top to bottom.

The detection light path 1 uses a fixed cylinder 11 as a mounting bracket of each light path component, an entrance pupil 12, a first lens 13, a second lens 14, a third lens 15 and an exit pupil 16 are distributed on the fixed cylinder 11 from top to bottom in sequence, the entrance pupil 12 receives light beams, then the light beams are shaped through the first lens 13, the second lens 14 and the third lens 15, and finally the light beams are output through the exit pupil 16.

Referring to fig. 4, the first lens 13 is a plano-convex lens, the radius of the circular arc of the upper convex surface of the first lens 13 is 8.26mm, and the center thickness of the first lens 13 is 2.02 mm. A plano-convex lens with a circular arc radius of 8.26mm and a center thickness of 2.02mm was used as the first mirror 13.

Referring to fig. 4, the second lens 14 is a biconvex lens, the radius of the arc of the upper convex surface of the second lens 14 is 18.27mm, the radius of the arc of the lower convex surface of the second lens 14 is 28.57mm, and the center thickness of the second lens 14 is 3.11 mm. A biconvex lens with upper and lower arc radii of 18.27mm and 28.57mm and a center thickness of 3.11mm is used as the second lens 14.

Referring to fig. 4, the third lens 15 is a biconvex lens, the arc radius of the upper convex surface and the arc radius of the lower convex surface of the third lens 15 are both 76.29mm, and the center thickness of the third lens 15 is 5 mm. A biconvex lens with the upper and lower arc radiuses of 76.29mm and 76.29mm and the center thickness of 5mm is used as the third lens 15.

Referring to fig. 4, the distance between the first lens 13 and the second lens 14 is 3.11mm, and the distance between the second lens 14 and the third lens 15 is 204.01 mm. Through the arrangement of the relative relationship among the first lens 13, the second lens 14 and the third lens 15, the stable work of the first lens 13, the second lens 14 and the third lens 15 is ensured.

Referring to fig. 3, the exit pupil 16 is disposed at the lower end of the fixed cylinder 11 through the adjusting sleeve 17, the outer wall array of the lower end of the fixed cylinder 11 is provided with a plurality of limiting posts 111, the outer wall of the adjusting sleeve 17 is provided with a plurality of adjusting grooves 171, and the adjusting grooves 171 are matched with the limiting posts 111; by rotating the adjustment sleeve 17, the adjustment sleeve 17 can be moved forward and backward in the vertical direction. The exit pupil 16 can be adjusted to slide in the vertical direction, and can be adjusted to focus, so that the lens system is suitable for lenses a with different lengths.

Referring to fig. 1-2, the detection optical path 1 is disposed on the upper portion of the support rod 01 through an adjusting mechanism 18, and the adjusting mechanism 18 includes an adjusting block 181 and a fixing ring 182. The fixing ring 182 is arranged on the adjusting block 181, and the detection light path 1 is fixed on the fixing ring 182; the adjusting block 181 is adjustably arranged on the support rod 01; the adjusting block 181 is sleeved on the support rod 01, and a knob for adjustment and a bolt for fixing are arranged on the adjusting block 181. The relative height of the detection light path 1 can be adjusted, and the lenses a with different lengths can be detected, so that the universality of the equipment is improved.

Referring to fig. 1, the clamping device 2 includes a first clamping mechanism 21 and a second clamping mechanism 22 which are distributed up and down, working ends of the first clamping mechanism 21 and the second clamping mechanism 22 are located on the same straight line, and both the first clamping mechanism 21 and the second clamping mechanism 22 are adjustably arranged on the support rod 01.

The upper end and the lower end of the lens a are clamped by the first clamping mechanism 21 and the second clamping mechanism 22 which are distributed up and down, and the first clamping mechanism 21 and the second clamping mechanism 22 can be adjusted in a sliding mode in the vertical direction, so that the lenses a with different lengths can be clamped.

Referring to fig. 5, the first clamping mechanism 21 includes a first mounting seat 211, a first guide rod 212, two symmetrically distributed first fixed side plates 213, and two symmetrically distributed first clamp assemblies 214. The first mounting seat 211 is sleeved on the support rod 01, and a bolt for loosening and tightening is arranged on the first mounting seat 211; two first fixed side plates 213 are provided on both sides on the end surface of the first mount 211; two first guide rods 212 are arranged, and the two first guide rods 212 are arranged between the two first fixed side plates 213; two first clamp assemblies 214 are adjustably mounted on first guide rod 212. In the first clamping mechanism 21, the first mounting seat 211 is used as an adjusting fixing seat of the mechanism and can be adjusted on the support rod 01 in a vertical sliding manner; two first clamp assemblies 214 are adjustably provided on the first guide rod 212, and working ends of the two first clamp assemblies 214 clamp an upper portion of the lens a.

Referring to fig. 5, the first clamp assembly 214 includes an adjustment rod 2141, a first sliding block 2142, and a first clamping piece 2143. The first sliding block 2142 is slidably disposed on the first guide rod 212, and the first clamping piece 2143 is disposed on the first sliding block 2142; the adjusting rod 2141 is adjustably disposed on the first fixed side plate 213, a threaded hole is formed in the first fixed side plate 213, the adjusting rod 2141 is a threaded rod, and one end of the adjusting rod 2141 is connected to the first sliding block 2142. In the first clamping assembly 214, the relative position of the first sliding block 2142 is adjusted by the adjusting rod 2141, thereby achieving clamping.

Referring to fig. 6, the second clamping mechanism 22 includes a second mounting seat 221, a second guide bar 222, two symmetrically distributed second fixed side plates 223, and two symmetrically distributed second clamp assemblies 224. The second mounting seat 221 is sleeved on the support rod 01, and a bolt for loosening and tightening is arranged on the second mounting seat 221; two second fixed side plates 223 are disposed on both sides on the end surface of the second mount 221; two second guide rods 222 are provided, and the two second guide rods 222 are provided between the two second fixed side plates 223; two second clamp assemblies 224 are adjustably mounted on the guide rods. In the second clamping mechanism 22, the second mounting seat 221 is used as an adjusting fixing seat of the mechanism and can be adjusted on the support rod 01 in a vertical sliding manner; two second clamp assemblies 224 are adjustably provided on the second guide bar 222, and working ends of the two second clamp assemblies 224 clamp a lower portion of the lens a.

Referring to fig. 6, second clamp assembly 224 includes a pull rod 2241, a second slide block 2242, a second clamping piece 2243 and a spring 2244, second slide block 2242 is slidably disposed on second guide bar 222, and second clamping piece 2243 is disposed on second slide block 2242; the pull rod 2241 is slidably arranged on the second fixed side plate 223, a through hole is formed in the second fixed side plate 223, and the pull rod 2241 is sleeved on the through hole; one end of the pull rod 2241 is connected to the second sliding block 2242, and the spring 2244 is sleeved on the second guide bar 222 and located between the second sliding block 2242 and the second fixed side plate 223. In the second clamp assembly 224, the second slider 2242 is biased by a spring 2244, thereby clamping.

Referring to fig. 6, the second clip 2243 has a support 2245 on an inner side thereof, and the support 2245 is used to support a lower end of the lens a.

Referring to fig. 2, integrating sphere device 3 includes an integrating sphere 31 and a data processor 32. The integrating sphere 31 is arranged on the base 0 and is positioned right below the detection light path 1, and the data processor 32 is arranged on the base 0 and is connected with the integrating sphere device 3 through an optical fiber. For ease of installation, integrating sphere 31 is above data processor 32.

The integrating sphere 31 is connected with a data processor 32 through an optical fiber, and the data processor 32 processes the data and then transmits the data to the analysis device 5; and the software on the analysis device 5 receives the data conducted back by the processor to realize analysis measurement.

With reference to fig. 7, the present apparatus is applied to a detection system, the detection system includes a light source apparatus 4 and an analysis apparatus 5, and the light source apparatus 4 is in control connection with the analysis apparatus 5. The light source device 4 is configured to provide a detection light beam (hereinafter referred to as light beam), the light source device 4 is connected with an incident end (i.e. an entrance pupil 12) of the detection optical path 1 through an optical fiber, and the light source device 4 inputs the light beam into the detection optical path 1 through the optical fiber; the integrating sphere device 3 is in data connection with an output end (i.e. the data processor 32) of the analysis device 5, in this embodiment, the integrating sphere device 3 is connected with the data processor 32 through a data line, the analysis device 5 is an industrial computer, and analysis software is installed in the analysis device 5.

The detection optical path of the detection system in this embodiment is roughly: the light source device 4-the detection light path 1 (entrance pupil 12-first lens 13-second lens 14-third lens 15-exit pupil 16) -the lens a-the integrating sphere device 3 (integrating sphere 31-data processor 32).

The detection system comprises the following specific working steps:

s1, holding lens a: the lens a is held on the clamping device 2.

S1.1, initial positioning: the eyepiece end of the lens a is clamped in the first clamping mechanism 21, the relative distance between the two clamp assemblies is larger than the diameter of the lens a by adjusting the first clamp assembly 214, and then the adjusting rods 2141 of the two first clamp assemblies 214 are synchronously rotated to make the first sliding blocks 2142 of the two first clamp assemblies 214 close to the middle until the first clamping pieces 2143 of the two first clamp assemblies 214 clamp the eyepiece of the lens a;

s1.1, clamping: the working end of the second clamping mechanism 22 is adjusted to be just level with the objective end of the lens a, the pull rod 2241 of the two second clamp assemblies 224 is pulled to be slowly loosened, the objective end of the lens a is clamped between the clamping pieces of the two second clamp assemblies 224, and the objective end of the lens a is clamped on the supporting piece 2245 of the two clamping pieces.

S2, starting the light source device 4: starting the light source device 4 and adjusting the appropriate light beam; the light source device 4 inputs light beams into the detection optical path 1 through optical fibers; in the detection light path 1, an entrance pupil 12 receives the light beam of the light source device 4, then the light beam is shaped by a first lens 13, a second lens 14 and a third lens 15, and finally the light beam is output through an exit pupil 16;

s3, detection: the light beam penetrates through the lens a after being shaped by the detection light path 1, the integrating sphere 31 collects the light beam, the integrating sphere 31 is connected with the data processor 32 through an optical fiber, and the data processor 32 transmits the data to the analysis device 5 after processing.

S4, data analysis: and the software on the analysis device 5 receives the data conducted back by the processor to realize analysis measurement.

This equipment can detect the straight section of thick bamboo camera lens a of multiple not unidimensional length, and the commonality is strong. Moreover, applied to the system, the detection data of the shot a is collected in the analysis device 5, and the analysis device 5 forms a complex data information chart, so that the data can be visually checked. The equipment is simple in structure, easy and convenient to operate, low in operation threshold and high in practicability.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims (10)

1. Lens luminousness detects light path, its characterized in that, including fixed section of thick bamboo (11), entrance pupil (12), first lens (13), second lens (14), third lens (15) and exit pupil (16), the upper portion at bracing piece (01) is installed in fixed section of thick bamboo (11), the upper and lower both ends of fixed section of thick bamboo (11) are located respectively in entrance pupil (12) and exit pupil (16), first lens (13), second lens (14) are located in entrance pupil (12), fixed section of thick bamboo (11) is located in third lens (15), first lens (13), second lens (14), third lens (15) straight line distribution.

2. The lens light transmittance detection optical path according to claim 1, wherein the first lens (13) is a plano-convex lens, the circular arc radius of the upper convex surface of the first lens (13) is 8.26mm, and the central thickness of the first lens (13) is 2.02 mm.

3. The lens light transmittance detection optical path according to claim 1, wherein the second lens (14) is a biconvex lens, the arc radius of the upper convex surface of the second lens (14) is 18.27mm, the arc radius of the lower convex surface of the second lens (14) is 28.57mm, and the center thickness of the second lens (14) is 3.11 mm.

4. The lens light transmittance detection optical path according to claim 1, wherein the third lens (15) is a biconvex lens, the arc radius of the upper convex surface and the arc radius of the lower convex surface of the third lens (15) are both 76.29mm, and the center thickness of the third lens (15) is 5 mm.

5. The lens light transmittance detection optical path according to claim 1, wherein the distance between the first lens (13) and the second lens (14) is 3.11mm, and the distance between the second lens (14) and the third lens (15) is 204.01 mm.

6. The light transmittance detection light path for the lens according to any one of claims 2 to 5, characterized in that the exit pupil (16) is arranged at the lower end of the fixed cylinder (11) through an adjusting sleeve (17), the outer wall array of the lower end of the fixed cylinder (11) is provided with a plurality of limiting posts (111), the outer wall of the adjusting sleeve (17) is provided with a plurality of adjusting grooves (171), and the adjusting grooves (171) are matched with the limiting posts (111); by rotating the adjusting sleeve (17), the adjusting sleeve (17) can move forward and backward along the vertical direction.

7. Lens luminousness check out test set, including lens luminousness detection light path of claim 6, characterized in that, still include base (0), clamping device (2) and integrating sphere device (3), integrating sphere device (3) are located on base (0), be equipped with bracing piece (01) on base (0), lens luminousness detection light path locates the upper portion of bracing piece (01), the middle part of bracing piece (01) is located in clamping device (2), camera lens (a) have been placed in clamping device (2), lens luminousness detection light path, camera lens (a), integrating sphere device (3) are located same straight line.

8. The lens light transmittance detection apparatus according to claim 7, wherein the detection light path (1) is disposed on the upper portion of the support rod (01) through an adjusting mechanism (18), the adjusting mechanism (18) comprises an adjusting block (181) and a fixing ring (182), the fixing ring (182) is disposed on the adjusting block (181), the detection light path (1) is fixed on the fixing ring (182), and the adjusting block (181) is adjustably disposed on the support rod (01).

9. The lens light transmittance detection apparatus according to claim 7, wherein the clamping device (2) comprises a first clamping mechanism (21) and a second clamping mechanism (22) which are distributed up and down, and the first clamping mechanism (21) and the second clamping mechanism (22) are both adjustably arranged on the support rod (01).

10. The apparatus for detecting light transmittance of a lens according to claim 7, wherein the integrating sphere device (3) comprises an integrating sphere (31) and a data processor (32), the integrating sphere (31) is disposed on the base (0) and located right below the detection optical path (1), and the data processor (32) is disposed on the base (0) and connected to the integrating sphere device (3) through an optical fiber.

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