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Method for adjusting optical axis parallelism of fine and rough fields of view

An adjustment method and parallel technology, applied in the direction of position/direction control, control/regulation system, non-electric variable control, etc., can solve the problems of large limitations of the adjustment method

Active Publication Date: 2016-06-01
BEIJING AEROSPACE INST FOR METROLOGY & MEASUREMENT TECH +1
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of large limitations of existing adjustment methods, and to provide a method for adjusting the parallelism of optical axes in coarse and fine fields of view

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  • Method for adjusting optical axis parallelism of fine and rough fields of view
  • Method for adjusting optical axis parallelism of fine and rough fields of view

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Embodiment Construction

[0030] A method for adjusting the optical axis parallelism of the coarse and fine fields of view of the present invention is introduced below in conjunction with the accompanying drawings and embodiments:

[0031] Such as figure 1 As shown, a method for adjusting the parallelism of the optical axis of the coarse and fine fields of view includes the following steps:

[0032] The first step: install the equipment;

[0033] Such as figure 2 As shown, two target screens 1 are placed at different distances from the optical system, and a vertical indicator 4 is installed on the target screen closer to the optical system. In this embodiment, the optical system for providing a fine field of view adopts a Cassegrain telescopic system, and the laser beam is reflected by the Cassegrain secondary mirror to reach the primary mirror and then exits from the primary mirror. The optical system that provides the coarse field of view is a televised sighting telescope 2 , and the target scree...

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Abstract

The invention belongs to the technical field of engineering measurement, in particular relates to a method for adjusting the optical axis parallelism of fine and rough fields of view, and aims to solve the problem of large limitations of a conventional adjusting method. The method comprises two steps of equipment mounting and adjustment of the optical axis parallelism of the fine and rough fields of view. According to the invention, target screens are disposed at different distances, two optical axis target points are carried on the screens, a relative position relation of the target points is obtained, and the optical axis parallelism is adjusted. The adjustment accuracy is estimated that if the relative position of optical axes shifts not more than 10mm in the adjusting process of 50m to 97m, then the adjustment error is 20mm in a range of 100m, the offset of the two optical axes in the range of 1km can be controlled to be 200mm, and as the reception area of the target screens is 500mm in the experiment, the requirement of focusing and pointing at a distance of 1km can be met.

Description

technical field [0001] The invention belongs to the technical field of engineering measurement, and in particular relates to a method for adjusting the parallelism of optical axes of coarse and fine fields of view. Background technique [0002] With the rapid development of the applied optics industry, there are not many optical instruments and equipment with the characteristics of multi-spectral and non-common optical paths. The most important technical index for evaluating such instruments and equipment is the parallelism of the optical axes between independent optical systems. [0003] There are many ways to adjust the parallelism of optical axes between optical systems with different optical paths. The common way is to use collimator to adjust the parallelism between optical axes. This method has high precision in adjusting parallelism and can integrate multiple detection modules. Real-time analysis and data processing can be performed on the measurement results, but thi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D3/00
Inventor 宋金城刘柯郑明珠高越董利军缪寅宵郭雨蓉
Owner BEIJING AEROSPACE INST FOR METROLOGY & MEASUREMENT TECH
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