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25 September 2017 Advanced space optics development in freeform optics design, ceramic polishing, rapid and extreme freeform polishing
R. Geyl, H. Leplan, E. Ruch
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Proceedings Volume 10562, International Conference on Space Optics — ICSO 2016; 105623S (2017) https://doi.org/10.1117/12.2296212
Event: International Conference on Space Optics — ICSO 2016, 2016, Biarritz, France
Abstract
In this paper Safran-Reosc wants to share with the space community its recent work performed in the domain of space optics. Our main topic is a study about the advantages that freeform optical surfaces can offer to advanced space optics in term of compactness or performances. We have separated smart and extreme freeform in our design exploration work. Our second topic is to answer about the immediate question following: can we manufacture and test these freeform optics? We will therefore present our freeform optics capability, report recent achievement in extreme aspheric optics polishing and introduce to the industrialisation process of large off axis optics polishing for the ESO Extremely Large Telescope primary mirror segments. Thirdly we present our R-SiC polishing layer technology for SiC material. This technique has been developed to reduce costs, risks and schedule in the manufacturing of advanced SiC optics for Vis and IR applications.
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R. Geyl, H. Leplan, and E. Ruch "Advanced space optics development in freeform optics design, ceramic polishing, rapid and extreme freeform polishing", Proc. SPIE 10562, International Conference on Space Optics — ICSO 2016, 105623S (25 September 2017); https://doi.org/10.1117/12.2296212
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KEYWORDS
Polishing
Freeform optics
Optics manufacturing
Astronomical imaging
Silicon carbide
Mirrors
Aspheric lenses
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