21 October 2005 From VLT to GTC and the ELTs
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At Sagem-REOSC we are in the last phase of figuring of the Gran Telescopio Canarias Primary Mirror Segments and Secondary Mirror. This paper's intent is to show, from the optical manufacturer point of view, how astronomy is presently evolving from large monolithic Active Mirrors to segmented optics thus raising new manufacturing challenges. For this we will recall the work done during VLT & Gemini, gaive latest status on Gran Telescopio Canarias and make a rapid overview of the on-going Extremely Large Telescope projects with primary mirror diameter above 20-m.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Roland Geyl, Roland Geyl, } "From VLT to GTC and the ELTs", Proc. SPIE 5965, Optical Fabrication, Testing, and Metrology II, 59650P (21 October 2005); doi: 10.1117/12.627677; https://doi.org/10.1117/12.627677


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