Analysis and suppression of stray radiation in an infrared telescope system in geosynchronous orbit

Jianguo Tian; Xinglong Li; Linbao Hou; Zhen Xu

doi:10.1117/12.2573688

10 October 2020 Analysis and suppression of stray radiation in an infrared telescope system in geosynchronous orbit

Jianguo Tian, Xinglong Li, Linbao Hou, Zhen Xu

Proceedings Volume 11548, Optical Design and Testing X; 115480I (2020) https://doi.org/10.1117/12.2573688
Event: SPIE/COS Photonics Asia, 2020, Online Only

Abstract

Analyze the source of stray radiation of the geosynchronous infrared telescope system, and list the methods of suppressing infrared stray radiation. The method of setting the internal optical components ‘field stop heat dissipator’ to suppress the stray radiation of the geosynchronous orbit infrared telescope system. Explain the necessity of using heat dissipator and optimize the internal optical and mechanical structure of the telescope system. Use LightTools software to build a model of the infrared telescope system and perform ray tracing analysis, calculate and compare the point source transmittance (PST) value of the infrared telescope system before and after the suppression measures are taken, and evaluate the effectiveness of the stray radiation suppression measures.

Conference Presentation

Citation Download Citation

Jianguo Tian, Xinglong Li, Linbao Hou, and Zhen Xu "Analysis and suppression of stray radiation in an infrared telescope system in geosynchronous orbit", Proc. SPIE 11548, Optical Design and Testing X, 115480I (10 October 2020); https://doi.org/10.1117/12.2573688

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