The design and analysis of 2m telescope’s K Mirror system

Peng Guo; Jingxu Zhang; Fei Yang; Yan Zhang

doi:10.1117/12.2069579

2 September 2014 The design and analysis of 2m telescope’s K Mirror system

Peng Guo, Jingxu Zhang, Fei Yang, Yan Zhang

Proceedings Volume 9280, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 92800C (2014) https://doi.org/10.1117/12.2069579
Event: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2014), 2014, Harbin, China

Abstract

During the alt-azimuth telescope tracking, due to the frame structure of tracking support and relative movement of each mirror in Coude optical path, image plane is rotating. To eliminate the effects of image rotation for imaging and subsequent image processing, dove prism or K mirror are generally used. A set of K mirror system designed for 2m telescope. Affected by various errors in the alignment process, the rotating axis K, the optical axis of the K mirror, and the optical axis of the telescope’s optical system can’t be fully coincide. This causes the track optical axis drawn on the image is not a point, but a Pascal’s limacon. The impact caused by the various sources of error were analyzed in this paper and simulation results have important guiding significance for the alignment error distribution.

Citation Download Citation

Peng Guo, Jingxu Zhang, Fei Yang, and Yan Zhang "The design and analysis of 2m telescope’s K Mirror system", Proc. SPIE 9280, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 92800C (2 September 2014); https://doi.org/10.1117/12.2069579

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