Optical axis calibration device of collimator primary and secondary mirror system

Abstract

The utility model provides a collimator primary and secondary mirror system optical axis calibration device, which relates to the optical test field, and comprises a bottom plate and a collimator main body, the top of the bottom plate is fixedly provided with a slide rail, the slide rail is provided with a detection assembly, the upper part of the slide rail is provided with a limiting assembly, and the collimator main body is installed in the limiting assembly. Through the arrangement of the camera, the artificial star point, the limiting assembly and the positioning point, the collimator needing to be calibrated can be installed on the coaxial line of the camera and the artificial star point in cooperation with the height adjusting assembly, and the imaging condition of light rays is observed through simulation light rays emitted by the artificial star point and is displayed on a computer screen. The method is convenient for personnel to observe the conditions of imaging blurring, deformation and the like, provides a calibration result as a basis, and is convenient for personnel to correspondingly adjust the corresponding lens until a clear and accurate image can be generated, so that the imaging quality of the primary and secondary mirror system is ensured, and the precision of the collimator is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical testing field especially relates to a collimator main secondary mirror system optical axis calibration device. BACKGROUND

[0002] The collimator is mainly used to produce parallel light beam optical instrument, and the collimator is used to obtain the light beam from the infinite distance, and the light beam is called parallel light, which is an important tool for adjusting and calibrating optical instruments and an important component in optical measuring instruments.

[0003] At present, when the collimator is produced, the optical axis of the main secondary mirror installed in the collimator needs to be ensured on the same axis, but in actual production, there is no corresponding calibration device to calibrate the main secondary mirror of the collimator, therefore, the utility model provides a collimator main secondary mirror system optical axis calibration device to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the problem that there is no suitable device to calibrate the optical axis of the main secondary mirror of the collimator.

[0005] In order to realize the above purpose, the utility model adopts the following technical scheme: a collimator main secondary mirror system optical axis calibration device, including the bottom plate and the collimator main body, the top of the bottom plate is fixed with the slide rail, the slide rail is provided with the detection assembly, the top of the slide rail is provided with the limiting assembly, the collimator main body is installed in the limiting assembly, and the limiting assembly and the top of the slide rail are fixed with the height adjusting assembly.

[0006] Preferably, the camera is fixed on the top of the other slide rail through the support, and the two slide rails are located on the two sides of the height adjusting assembly.

[0007] Preferably, the end of the collimator main body close to the artificial star point is screw connected with the cover, and the outer surface of one side of the cover is provided with the positioning point.

[0008] Preferably, the limiting assembly includes the ring fixed on the top of the height adjusting assembly, the inner wall of the ring is fixed with the rubber ring, and the collimator main body is located in the ring.

[0009] Preferably, the top of the circular ring is provided with a threaded hole, a screw rod is connected in the threaded hole through threads, and the bottom end of the screw rod is rotationally connected with an arc-shaped plate through a bearing.

[0010] Preferably, the arc-shaped plate moves in the circular ring, the bottom of the arc-shaped plate is fixed with a rubber pad, and the surface of the collimator main body is in close contact with the surface of the rubber ring and the rubber pad.

[0011] Preferably, both ends of the arc-shaped plate are fixed with sliding rods, two sliding grooves adapted to the sliding rods are symmetrically formed in the surface of the circular ring, the other ends of the two sliding rods respectively pass through the adjacent sliding grooves and are fixed with limiting blocks, and the sliding rods are slidingly connected in the corresponding sliding grooves.

[0012] Compared with the prior art, the parallel light tube main mirror system optical axis calibration device has the advantages and positive effects that,

[0013] In the parallel light tube main mirror system optical axis calibration device, the camera, the artificial star point, the limiting assembly and the positioning point are arranged, and cooperate with the height adjusting assembly, so that the collimator to be calibrated can be installed on the coaxial line of the camera and the artificial star point, the simulation light emitted by the artificial star point is used to observe the imaging condition of the light, and the imaging condition is displayed on the computer screen, so that personnel can observe the imaging blur, deformation and the like, the calibration result is provided as a basis, personnel can adjust the corresponding lens, until the clear and accurate image is ensured, so that the imaging quality of the main mirror system is ensured, and the collimator precision is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure perspective view of the parallel light tube main mirror system optical axis calibration device.

[0015] Figure 2 It is a limiting assembly structure perspective view of the parallel light tube main mirror system optical axis calibration device.

[0016] Figure 3 It is a circular ring structure perspective view of the parallel light tube main mirror system optical axis calibration device.

[0017] Figure 4 It is an arc-shaped plate structure perspective view of the parallel light tube main mirror system optical axis calibration device.

[0018] Legend: 1. Base plate; 2. Main body of collimator; 3. Slide rail; 4. Detection component; 401. Camera; 402. Artificial star point; 403. Slide table; 404. Support column; 5. Limiting component; 501. Ring; 502. Rubber ring; 503. Threaded hole; 504. Screw; 505. Arc plate; 506. Rubber pad; 507. Slide rod; 508. Slide groove; 6. Height adjustment component; 7. Cover; 8. Positioning point. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1: As Figures 1-4 As shown, this utility model provides an optical axis calibration device for a collimator primary and secondary mirror system, including a base plate 1 and a collimator body 2. A slide rail 3 is fixed on the top of the base plate 1, a detection component 4 is provided on the slide rail 3, a limiting component 5 is provided above the slide rail 3, the collimator body 2 is installed in the limiting component 5, and a height adjustment component 6 is fixed between the limiting component 5 and the top of the slide rail 3. The detection component 4 includes a camera 401 and an artificial star point 402. Two slide tables 403 are slidably connected on the slide rail 3, and a support column 404 is fixed on the top of one of the slide tables 403. The artificial star point 402 is fixed on the top of the support column 404.

[0022] The effect achieved by the entire embodiment 1 is that the limiting component 5 and the height adjustment component 6 work together to install the collimator body 2 that needs to be calibrated onto the coaxial line of the camera 401 and the artificial star point 402. The artificial star point 402 emits simulated light to observe the imaging of the light. The camera 401 captures the imaging of the primary and secondary mirrors at the eyepiece end and displays it on the computer screen, which makes it convenient for personnel to make corresponding adjustments to the corresponding lenses until the imaging of the primary and secondary mirrors reaches the standard.

[0023] Example 2: As Figures 1-4As shown, the camera 401 is fixed on the top of another sliding table 403 by a support, and the two sliding tables 403 are respectively located on the two sides of the height adjusting assembly 6; the parallel light pipe body 2 is screw-connected with a cover 7 at one end close to the artificial star point 402, and the outer surface of one side of the cover 7 is provided with a positioning point 8; the limiting assembly 5 comprises a circular ring 501 fixed on the top of the height adjusting assembly 6, the inner wall of the circular ring 501 is fixed with a rubber ring 502, and the parallel light pipe body 2 is located in the circular ring 501; the top of the circular ring 501 is provided with a threaded hole 503, a screw rod 504 is screw-connected in the threaded hole 503, and the bottom end of the screw rod 504 is rotatably connected with an arc-shaped plate 505 through a bearing; the arc-shaped plate 505 is movably arranged in the circular ring 501, the bottom of the arc-shaped plate 505 is fixed with a rubber pad 506, and the surface of the parallel light pipe body 2 is in close contact with the surface of the rubber ring 502 and the rubber pad 506; the two ends of the arc-shaped plate 505 are fixed with sliding rods 507, and the surface of the circular ring 501 is symmetrically provided with two sliding grooves 508 matched with the sliding rods 507, and the other ends of the two sliding rods 507 respectively pass through the adjacent sliding grooves 508 and are fixed with limiting blocks, and the sliding rods 507 are respectively and slidingly connected in the corresponding sliding grooves 508.

[0024] The effect achieved by the whole embodiment 2 is that the sliding table 403 can be locked and limited on the sliding rail 3, so that the distance between the camera 401, the artificial star point 402 and the parallel light pipe body 2 can be adjusted according to actual needs, the rubber ring 502 and the rubber pad 506 are used to protect the parallel light pipe body 2 when the parallel light pipe body 2 is fixed and installed, and the sliding rod 507 and the sliding groove 508 can limit the arc-shaped plate 505 rotatably arranged at the bottom of the screw rod 504, so that the arc-shaped plate 505 can only move up and down in the circular ring 501.

[0025] Working principle: when the primary and secondary mirrors in the main body 2 of the collimator need to be checked for optical axis, the personnel first power on the camera 401 and the artificial star point 402, and connect the camera 401 with the computer end, so that the camera 401 can display the shooting picture on the computer screen, the center point of the camera 401 and the light emitted by the artificial star point 402 are on the same axis, then the personnel need to fix and install the main body 2 of the collimator, first put the main body 2 of the collimator into the circular ring 501, the main body 2 of the collimator is located below the arc-shaped plate 505, after adjusting the fastening position of the main body 2 of the collimator, the personnel rotate the screw rod 504, under the cooperation of the threaded hole 503, the screw rod 504 will drive the arc-shaped plate 505 to move downward, until the rubber pad 506 of the arc-shaped plate 505 cooperates with the rubber ring 502, the main body 2 of the collimator is fastened and installed in the circular ring 501, then stop rotating the screw rod 504, at this time, because the specifications of the main body 2 of the collimator are different, the center of the main body 2 of the collimator and the light emitted by the artificial star point 402 are not on the same axis, the personnel need to operate the height adjusting assembly 6 to adjust the center of the main body 2 of the collimator and the light of the artificial star point 402 concentrically, then the personnel threadedly install the cover 7 on the main body 2 of the collimator, the positioning point 8 is on the same axis with the center of the main body 2 of the collimator and the cover 7, then the personnel turn on the artificial star point 402, the artificial star point 402 emits a beam of light, then the personnel operate the height adjusting assembly 6 to make the main body 2 of the collimator displace upward or downward accordingly, until the light point of the artificial star point 402 coincides with the positioning point 8, then the height can be locked, at this time, the center of the camera 401 and the main body 2 of the collimator are on the light emitted by the artificial star point 402, finally, the personnel remove the cover 7, the light beam of the artificial star point 402 enters the main body 2 of the collimator, and passes through the primary and secondary lenses in sequence, due to the error, the light beam may not accurately converge on the ideal focal point, the camera 401 observes the imaging condition of the artificial star point 402 at the ocular end of the main body 2 of the collimator, if the imaging is blurred, deformed or the like, the personnel can make fine adjustment on the position, angle and the like of the corresponding lens according to the characteristics and degree of the aberration, repeatedly adjust until the imaging of the light beam of the artificial star point 402 is clear and regular, at this time, the optical axes of the primary and secondary mirrors reach a relatively accurate state, and the above problems in the background are solved.

[0026] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms, any skilled person in the art can change or modify the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made on the above embodiments according to the technical essence of the present application still belongs to the protection scope of the technical scheme of the present application.

Claims

1. A collimator primary-secondary mirror system optical axis alignment device, characterized in that: The utility model relates to a parallel light pipe body (2) and bottom plate (1) including, the top of bottom plate (1) is fixed with slide rail (3), be provided with detection subassembly (4) on slide rail (3), the top of slide rail (3) is provided with limiting component (5), limiting component (5) is installed in the top of slide rail (3), limiting component (5) is fixed with height adjusting component (6) between the top of slide rail (3), Detection subassembly (4) includes camera (401) and artificial star point (402), two slide platforms (403) are slidably connected on the slide rail (3) respectively, one of the slide platforms (403) is fixed with a support (404) on the top, and the artificial star point (402) is fixed on the top end of the support (404).

2. The collimator primary-secondary mirror system optical axis alignment device of claim 1, wherein: The camera (401) is fixed on the top of the other slide platform (403) by a support, and the two slide platforms (403) are located on the two sides of the height adjusting component (6) respectively.

3. The collimator primary-secondary mirror system optical axis alignment device of claim 1, wherein: The parallel light pipe body (2) is threadedly connected with a cover (7) at one end close to the artificial star point (402), and the outer surface of one side of the cover (7) is provided with a positioning point (8).

4. The collimator primary-secondary mirror system optical axis alignment device of claim 1, wherein: The limiting component (5) includes a circular ring (501) fixed on the top of the height adjusting component (6), the inner wall of the circular ring (501) is fixed with a rubber ring (502), and the parallel light pipe body (2) is located in the circular ring (501).

5. The collimator primary-secondary mirror system optical axis alignment device of claim 4, wherein: Threaded holes (503) are formed in the top of the circular ring (501), a screw rod (504) is threadedly connected in the threaded holes (503), and the bottom end of the screw rod (504) is rotatably connected with an arc-shaped plate (505) through a bearing.

6. The collimator primary-secondary mirror system optical axis alignment device of claim 5, wherein: The arc-shaped plate (505) is movable in the circular ring (501), the bottom of the arc-shaped plate (505) is fixed with a rubber pad (506), and the surface of the parallel light pipe body (2) is in close contact with the surface of the rubber ring (502) and the rubber pad (506).

7. The collimator primary-secondary mirror system optical axis alignment device of claim 6, wherein: The two ends of the arc-shaped plate (505) are fixed with slide rods (507), two slide grooves (508) are symmetrically formed in the surface of the circular ring (501) and matched with the slide rods (507), the other ends of the two slide rods (507) pass through the adjacent slide grooves (508) and are fixed with limiting blocks, and the slide rods (507) are slidably connected in the corresponding slide grooves (508).

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