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Method for detecting verticality of optical axis and mounting baseplane in optical system

A technology of optical system and detection method, applied in the direction of using optical device, optical instrument testing, testing optical performance, etc., can solve the problem of not finding the measurement method and so on

Inactive Publication Date: 2008-08-13
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

The verticality of the optical axis of the optical system to the installation base is a new measurement index of the optical system. At present, there is no reference and reference measurement method for this index.

Method used

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  • Method for detecting verticality of optical axis and mounting baseplane in optical system

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Embodiment Construction

[0015] The device for measuring the perpendicularity between the optical axis of the optical system and its installation base in the present invention includes an adjustment platform 3 , a precision turntable 2 , a collimator 4 , an autocollimator 5 , and a plane mirror 6 .

[0016] Before the measurement, connect the CCD receiver signal output end of the optical system under test 1 to the monitor, and at the same time connect the electric crosshair generator to the monitor for auxiliary observation.

[0017] The implementation steps of the method for measuring a specific optical system, such as the verticality of the optical axis of the UAV reconnaissance optical system and its installation base surface, are as follows:

[0018] (a) Place the precision turntable 2 on the adjustment platform 3, and the measured optical system 1 is placed on the precision turntable 2; the rotation axis of the precision turntable 2 and the surface of the precision turntable 2 should be perpendicu...

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Abstract

The disclosed detection method for optical axis and its assembly base comprises: putting the target optical system on precise rotary table, hanging collimator above the system to parallel with the table axis; arranging an autocollimator above the plane reflector of rotary table for self-imaging with the reflector to record its azimuth angle; adjusting the image of cross line overlay with the one of collimator, reading the azimuth angle, and calculating the error of non-normality degree. This invention has wide application.

Description

technical field [0001] The invention belongs to the technical field of optical instrument detection, and relates to a detection method for the perpendicularity between the optical axis of an optical system and its installation base surface. Background technique [0002] With the development of aviation and aerospace, many optical systems (such as drone reconnaissance optical systems, etc.) have put forward requirements for the verticality of the optical axis to the installation base. In order to ensure the stability of the optical system during use, the adjustment mechanism is often not added in the design, but the verticality of the two meets the requirements by means of mechanical processing and adjustment, and it has the performance of shock resistance and shock resistance to ensure that it will not be used during use. change. This indicator should be strictly checked before use to ensure that it meets the design requirements. The verticality of the optical axis of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M11/00G01M11/02G01B11/27
Inventor 叶露刘则洵韩冰
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI