Novel Cassegrain system primary mirror and secondary mirror supporting structure

Abstract

The invention provides a novel Cassegrain system primary mirror and secondary mirror supporting structure, which is mainly characterized in that an assembly adjustment structure of a lens is designedon a primary mirror bracket, and flexible support is adopted to position and support the lens, so that the problem of relative position change of a primary mirror and a secondary mirror caused by temperature change, vibration and the like is solved, and the long-time relative stability of the primary mirror and the secondary mirror is effectively maintained. According to the technical scheme, thenovel Cassegrain system primary mirror and secondary mirror supporting structure comprises a lens frame mechanism, a primary lens pressing ring and a secondary lens pressing ring, the lens frame mechanism comprises a primary lens frame, a secondary lens frame and connecting rods, the primary lens frame and the secondary lens frame are both of an annular structure, are coaxially arranged and are connected through the multiple connecting rods, a primary lens and a secondary lens are correspondingly arranged in the inner holes of the primary lens frame and the secondary lens frame respectively, the primary lens is fixed through the primary lens pressing ring, the secondary lens is fixed through the secondary lens pressing ring, and a plurality of primary lens pose adjusting devices are arranged on the primary lens frame and can adjust the pose of the primary lens relative to the secondary lens.

Description

technical field [0001] The invention relates to the technical field of aerospace optical remote sensors, in particular to a novel Cassegrain system primary and secondary mirror support structure. Background technique [0002] In the field of astronomical star measurement, star measuring devices based on the principle of the Cassegrain optical system are widely used. This type of Cassegrain optical system requires extremely high precision, but the operating environment is often very harsh, and it must withstand large temperature changes and Strong vibration will cause changes in the relative pose of the primary and secondary mirrors, reducing the accuracy of the optical system. There are mainly three problems in the current support design of the primary and secondary mirror structures: the lens is mainly fixed by various types of curing glue, which is not easy to generate stress, and then has poor stability for a long time; the assembly and adjustment of the secondary mirror ...

AI Technical Summary

Problems solved by technology

There are mainly three problems in the current support design of the primary and secondary mirror structures: the lens is mainly fixed by various types of curing glue, which is not easy to generate stress, and then has poor stability for a long time; the assembly and adjustment of the secondary mirror part, the secondary mirror is more prone to pose Changes, and the impact on the optical system is more serious; the adjustment link of the lens is often poor in stability or complex in structure

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