20 October 2005 Low CTE glass, SiC & Beryllium for lightweight mirror substrates
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This paper is intended to analyze the relative merits of low CTE glass, SiC and Beryllium as candidates for lightweight mirror substrates in connection with real practical experience and example or three major projects using these three materials and running presently at SAGEM-REOSC. Beryllium and SiC have nice thermal and mechanical properties but machined glass ceramic can still well compete technically or economically in some cases.
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Roland Geyl, Roland Geyl, Marc Cayrel, Marc Cayrel, } "Low CTE glass, SiC & Beryllium for lightweight mirror substrates", Proc. SPIE 5965, Optical Fabrication, Testing, and Metrology II, 59651F (20 October 2005); doi: 10.1117/12.627667; https://doi.org/10.1117/12.627667

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