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Proceedings Paper • Open Access

Development of reaction-sintered SiC mirror for space-borne optics
Author(s): Yukari Y. Yui; Toshiyoshi Kimura; Yoshio Tange

Paper Abstract

We are developing high-strength reaction-sintered silicon carbide (RS-SiC) mirror as one of the new promising candidates for large-diameter space-borne optics.

In order to observe earth surface or atmosphere with high spatial resolution from geostationary orbit, larger diameter primary mirrors of 1-2 m are required. One of the difficult problems to be solved to realize such optical system is to obtain as flat mirror surface as possible that ensures imaging performance in infrared - visible - ultraviolet wavelength region. This means that homogeneous nano-order surface flatness/roughness is required for the mirror.

The high-strength RS-SiC developed and manufactured by TOSHIBA is one of the most excellent and feasible candidates for such purpose. Small RS-SiC plane sample mirrors have been manufactured and basic physical parameters and optical performances of them have been measured. We show the current state of the art of the RS-SiC mirror and the feasibility of a large-diameter RS-SiC mirror for space-borne optics.

Paper Details

Date Published: 21 November 2017
PDF: 8 pages
Proc. SPIE 10568, International Conference on Space Optics — ICSO 2004, 105681E (21 November 2017); doi: 10.1117/12.2307958
Show Author Affiliations
Yukari Y. Yui, Japan Aerospace Exploration Agency (Japan)
Toshiyoshi Kimura, Japan Aerospace Exploration Agency (Japan)
Yoshio Tange, Japan Aerospace Exploration Agency (Japan)


Published in SPIE Proceedings Vol. 10568:
International Conference on Space Optics — ICSO 2004
Josiane Costeraste; Errico Armandillo, Editor(s)

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