Optical machine adjusting method of R-C reflection and refraction system

Abstract

The invention relates to an optical machine adjusting method of an R-C reflection and refraction system. The method comprises the following steps that 1) the shape of the glass back side of a secondary mirror is designed, the back side of the secondary mirror is coated with a reflective film, so that the spherical center image of the back side of the secondary mirror is overlapped with that of a glass reflection surface of the secondary mirror, and the theoretical positions of a spherical center image of a primary mirror and the spherical center image of the back side of the secondary mirror are determined; 2) the primary mirror is used to determine the reference of an interferometer, and an interferometry is used, so that the front focus of the interferometer is overlapped with the theoretical position of the spherical center image of the back side of the secondary mirror; 3) the secondary mirror is mounted in a secondary mirror frame; and 4) the secondary mirror frame is installed in a system, the interferometry is used, so that the practical position of the spherical center image of the back side of the secondary mirror is overlapped with the front focus of the interferometer, and the secondary mirror is adjusted. The technical problems that a present adjustment process of the R-C reflection and refraction system is complex, high in difficulty and low in precision, the shape of the back side of the secondary mirror is changed so that the back side is overlapped with the spherical center image of the reflection surface, and the difficulty in adjusting the primary and secondary mirrors of the R-C reflection and refraction system, especially the secondary mirror, is greatly reduced.

Description

technical field [0001] The invention relates to an optical-mechanical assembly and adjustment method for an R-C catadioptric system, in particular to an optical-mechanical assembly and adjustment method for an R-C catadioptric system. Background technique [0002] Optical systems are generally divided into refraction systems, refraction-diffraction hybrid systems, catadioptric systems, and total reflection systems according to their optical structures. The optical system adjustment is an important part of the optical system integration, which directly affects the imaging quality and overall performance parameters of the optical system. During the assembly and adjustment process, all optical and mechanical parts should be installed in sequence according to the relative position requirements of the optical design for the optical components, and the connection and fixation should be realized while ensuring that the deformation of the optical components is small. [0003] The R...

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Problems solved by technology

[0006] In order to solve the complex, difficult and low-precision technical problems of the existing R-C catadioptric optical system installation and adjustment process, the purpose of the present invention is to provide an optical-mechanical adjustment method for the R-C catadioptric system, which solves the problems of the background technology The technical problem of limited adjustment accuracy caused by multiple reference conversions during the installation and adjustment of the primary and secondary mirrors by the R-C catadioptric system

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