Design scheme for optical manufacturing support system of TMT M3 prototype

Haifei Hu; Xiao Luo

doi:10.1117/12.2069882

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2 September 2014 Design scheme for optical manufacturing support system of TMT M3 prototype

Proceedings Volume 9280, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 928006 (2014) https://doi.org/10.1117/12.2069882
Event: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2014), 2014, Harbin, China

Abstract

Thirty Meter Telescope’s Tertiary Mirror Cell Assembly (TMTM3-CA) will be manufactured in Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP). To reduce the risk of fabricating TMTM3, a prototype made of Zerodur with a d/t ratio of 72 is planned to be polished. Here the focus is on the design scheme of the prototype’s optical manufacturing support system. Firstly the number of support points was estimated, then structural design scheme for equal-force polishing support system are drawn, and finally layout optimization of support points was carried out. As its high performance and efficiency, the work will be beneficial to manufacturing large thin mirrors.

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Haifei Hu and Xiao Luo "Design scheme for optical manufacturing support system of TMT M3 prototype", Proc. SPIE 9280, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 928006 (2 September 2014); https://doi.org/10.1117/12.2069882

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