Alignment system and adjusting method for large-calibre space optical camera lens

Abstract

The invention, which relates to the space optical remote sensing field, provides an alignment system and adjusting method for a large-calibre space optical camera lens. With the system and method, problems of low optical transfer function and imaging quality of the optical system of the existing large-calibre space optical camera lens can be solved. The alignment system comprises a camera lens, a lens alignment frame, three lens connecting bases, a secondary lens alignment frame, a secondary lens adjusting frame, a plane lens, a plane lens two-dimensional adjusting mechanism, an interferometer, an interferometer adjusting frame, and a three-lens adjusting frame. The camera lens consists of a camera frame, a secondary lens assembly, a secondary lens pad block, a main lens assembly, a camera substrate, a rear bracket, a first folding lens assembly, a three-lens assembly, a three-lens pad block, a second folding lens assembly, and three connecting supports. With the alignment structure at the vertical direction of the optical axis of the camera lens, the precision changes of relative positions of all reflection lenses are small and the imaging quality of the optical system is kept to be the same when the large-calibre space optical camera lens enters a microgravity environment of the space after alignment on the ground.

Description

technical field [0001] The invention relates to the technical field of space optical remote sensing, in particular to a large-diameter space optical camera lens assembly system and an assembly method. Background technique [0002] Large-aperture space optical camera lenses are usually reflective optical systems, generally composed of a primary reflector, a secondary reflector and a third reflector. For large-aperture space optical camera lenses, the three mirrors need to have extremely high relative position accuracy to ensure the imaging quality of the optical system. In the development and production process of large-aperture space optical camera lenses, the imaging quality of the optical system can finally meet the requirements through high-precision adjustment of each mirror. However, since the large-aperture space optical camera lens works in the microgravity environment of space, the gravity on its structure will disappear when it is on the ground, and the change in g...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that after the lens of the large-aperture space optical camera is installed and adjusted at the level of the optical axis on the ground, the cantilever effect caused by the large distance between the primary and secondary mirrors in the optical system is very sensitive to changes in gravity. After entering the microgravity environment of space, each reflector The relative position accuracy will change greatly, resulting in the problem that the optical transfer function and imaging quality of the optical system are greatly reduced. The invention provides a large-aperture space optical camera lens assembly system and assembly method

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