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20 November 2017 Super-light-weighted HB-Cesic® mirror cryogenic test
Christophe Devilliers, Matthias R. Krödel, Zoran Sodnik, Patrick Robert
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Proceedings Volume 10565, International Conference on Space Optics — ICSO 2010; 105652F (2017) https://doi.org/10.1117/12.2309253
Event: International Conference on Space Optics—ICSO 2010, 2010, Rhodes Island, Greece
Abstract
Future scientific space missions require ever more demanding large optics that work at cryogenic temperatures. In the frame of a Darwin assessment study conducted under ESA contract by TAS, the need of future very lightweight cryogenic mirrors with superior optical quality has been identified. Such mirrors need to be of size up to 3.5 m in diameter, with a mass of less than 250 kg (i.e. 25 kg/m2) and possess excellent optical quality at cryogenic temperature down to 40 K.
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Christophe Devilliers, Matthias R. Krödel, Zoran Sodnik, and Patrick Robert "Super-light-weighted HB-Cesic® mirror cryogenic test", Proc. SPIE 10565, International Conference on Space Optics — ICSO 2010, 105652F (20 November 2017); https://doi.org/10.1117/12.2309253
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KEYWORDS
Mirrors
Polishing
Cryogenics
Computer aided design
Optics manufacturing
Temperature metrology
Coating
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