Open Access Paper
20 November 2017 NIRSpec optics development: final report
R. Geyl, E. Ruch, H. Vayssade, H. Leplan, J. Rodolfo
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Proceedings Volume 10565, International Conference on Space Optics — ICSO 2010; 105652D (2017) https://doi.org/10.1117/12.2309146
Event: International Conference on Space Optics—ICSO 2010, 2010, Rhodes Island, Greece
Abstract
As shown and discussed on a Sagem poster presented at the ICSO 2010 conference [1], scientific or commercial earth observation space instruments are more and more taking advantage of the remarkable properties of Silicon Carbide in term of hardness, stiffness and thermal stability combined with a reasonable density which are indeed of primary importance for all space applications.

Sagem-REOSC High Performance Optics Unit works on the polishing, coating and integration technologies of SiC mirrors since more than ten year through various successful space programs for various customers: INSAT 3D scan mirror, ROCSAT II and SPIRALE main telescopes, GAIA large primary mirrors and Auto-collimation flats, …).

This paper aims to provide to the international space community an exhaustive vision of the work performed by Sagem-REOSC on the polishing, coating and integration of the three Three Mirror Anastigmats of the NIRSpec spectrographic instrument which is the main ESA contribution to the JWST.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
R. Geyl, E. Ruch, H. Vayssade, H. Leplan, and J. Rodolfo "NIRSpec optics development: final report", Proc. SPIE 10565, International Conference on Space Optics — ICSO 2010, 105652D (20 November 2017); https://doi.org/10.1117/12.2309146
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KEYWORDS
Mirrors

Polishing

Silicon carbide

Astronomical imaging

Optics manufacturing

Bidirectional reflectance transmission function

Coating

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