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Optical axis angle adjustment and calibration method

A technology of optical axis and angle, applied in the direction of optical axis determination, testing optical performance, lens position determination, etc., can solve problems such as large stress and poor accuracy, and achieve the goal of improving stability, improving calibration efficiency, and improving calibration accuracy. Effect

Active Publication Date: 2020-02-21
LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for adjusting the optical axis angle to solve the problems of large stress and poor precision caused by repeated trial installation of gaskets

Method used

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  • Optical axis angle adjustment and calibration method
  • Optical axis angle adjustment and calibration method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The azimuth deviation of the laser receiving optical axis is -1', the pitch deviation is -1.5', and the coordinates of the three spacers are as follows Figure 4 As shown, they are O(0, 0, 0), z1 (-42.5, 162.5, z1), z2 (219, 145, z2), z3 (219, 3.5, z3), and substitute into equations (1), ( 2), (3), can be solved

[0037] z1=0.029mm

[0038] z2 = 0.063mm

[0039] z3 = 0.032mm

Embodiment 2

[0041] The azimuth deviation of the laser receiving optical axis is -30", the pitch deviation is -1.5', and the coordinates of the 6 spacers are as follows Figure 5 As shown, they are O(0, 0, 0), z1 (0, 307.5, z1), z2 (230.4, 307.5, z2), z3 (0, 128.2, z3), z4 (230.4, 128.2, z4), Substituting z5(230.4, 0, z5) into equations (1), (2), (3), the solution is

[0042] z1=0.067mm

[0043] z2 = 0.084mm

[0044] z3 = 0.030mm

[0045] z4=0.045mm

[0046] z5 = 0.017 mm.

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Abstract

The invention discloses an optical axis angle adjustment and calibration method, which belongs to the technical field of precision optical machine assembly and calibration, and relates to an optical axis adjustment and calibration method. The optical axis angle adjustment and calibration method comprises the steps of: adjusting azimuth and pitch angles of an infrared target source 1 to enable an optical axis of the infrared target source 1 to be parallel to an infrared assembly 2; detecting azimuth angle deviation alpha and pitch angle deviation beta of an optical axis of a laser receiving assembly 3; and calculating thicknesses of three gaskets according to a formula. By adopting the innovative optical axis angle adjustment and calibration method, the thickness of each gasket is preciselycalculated according to the test result of the optical axis deviation, and precise assembly and calibration of the optical axis are achieved. The optical axis angle adjustment and calibration methodis high in precision, high in efficiency and stable in optical axis.

Description

technical field [0001] The invention belongs to the technical field of precision optical machine adjustment, and relates to an optical axis adjustment method. Background technique [0002] The airborne photoelectric detection and tracking system is used for target detection, tracking and ranging, and can guide laser-guided bombs to attack the target. The airborne photoelectric detection and tracking system includes infrared components, laser receiving components and laser emitting components. In order to improve the aiming accuracy and weapon strike accuracy, it is often required that the optical axes of the laser receiving component, laser emitting component and infrared component be parallel, and the error is within 10" , the processing accuracy of the parts cannot be guaranteed, and the optical axes of the above three components need to be corrected with gaskets. The previous calibration method is: firstly adjust the azimuth and elevation angle of the infrared target sour...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/02
CPCG01M11/0221
Inventor 董续勇张华锋王鹏赵艳平高鹏涛
Owner LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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