Athermalization of coaxial reflective space telescope

Zhang Lei; Jin Guang

doi:10.1117/12.866656

13 October 2010 Athermalization of coaxial reflective space telescope

Zhang Lei, Jin Guang

Proceedings Volume 7654, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 76540G (2010) https://doi.org/10.1117/12.866656
Event: 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2010, Dalian, China

Abstract

This paper focuses on thermal effects, which caused by environmental temperature changes, on coaxial reflective space telescope and its solution. Curvature radius and center thickness of optical elements, and the space distance between optical elements may be changed by thermal effects. And the optical performance of the telescope may be impacted. Based on the analysis of thermal effects on coaxial reflective space telescope, athermalized design techniques are emphatically presented, the advantages and the disadvantages of the three athermalizations used currently are compared in the paper. The feasibility and effectiveness are verified by an example of a cassegrain space telescope.

Citation Download Citation

Zhang Lei and Jin Guang "Athermalization of coaxial reflective space telescope", Proc. SPIE 7654, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 76540G (13 October 2010); https://doi.org/10.1117/12.866656

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