The off-axis reflector mechanism can achieve high-precision supporting and multi-degree-of-freedom adjustment

Abstract

The invention provides an off-axis reflector mechanism capable of realizing high-precision support and multi-degree-of-freedom adjustment, and solves the problems of poor stability and single degree-of-freedom adjustment of a reflector with a large relative aperture during support of the reflector with the large relative aperture. The mechanism comprises an off-axis reflecting mirror, a mirror base, an adjusting plate and a supporting base; wherein the mirror base comprises a base body, a groove formed in the front end face of the base body, a plurality of pressing plates used for pressing theoff-axis reflector in the groove, a plurality of bonding columns and a plurality of supporting columns, wherein the bonding columns and the supporting columns are arranged in the groove; an adhesiveis arranged at the top end of each bonding column; the adjusting plate is connected with the rear end surface of the seat body through a plurality of first adjusting units; each first adjusting unit comprises a puller screw assembly used for adjusting the distance between the adjusting plate and the base body and a locking and tensioning screw assembly used for fixing the adjusting plate and the base body. The supporting base is of a hollow frame structure arranged on the outer sides of the base body and the adjusting plate in a sleeving mode and is connected with the side face of the adjusting plate through a second adjusting unit that is used for adjusting horizontal movement of the adjusting plate in the up-down direction and the left-right direction.

Description

technical field [0001] The invention relates to an off-axis mirror mechanism, in particular to an off-axis mirror mechanism capable of realizing high-precision support and multi-degree-of-freedom adjustment. Background technique [0002] The optical system of a hyperspectral imager generally consists of a pre-imaging objective lens, a collimating objective lens, a spectroscopic system, an imaging objective lens, and a detector. The pre-imaging objective lens images the ground target onto the incident slit of the spectroscopic system, separates the one-dimensional spectral information through the spectroscopic system, and images the slit images of each band on the detector through the imaging objective lens to obtain Spatial information and spectral information of the target object. The front imaging objective lens is responsible for imaging the ground target onto the object surface of the collimation-spectroscopic-imaging system in the system. [0003] The front imaging ob...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the technical problems of poor stability and relatively single degree of freedom adjustment of the existing support for large relative aperture mirrors, the present invention provides an off-axis mirror mechanism that can realize high-precision support and multi-degree-of-freedom adjustment

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