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Proceedings Paper

Durable silver coating for Kepler Space Telescope primary mirror
Author(s): D. A. Sheikh; S. J. Connell; R. S. Dummer
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Paper Abstract

A durable silver coating was developed and applied to the Kepler Space Telescope primary mirror. The coating was manufactured by an ion-assisted evaporation process and coating uniformity was better than 30-nm PTV over the 1.4-m mirror aperture. The protection scheme for silver was devised and patented twelve years ago by Lawrence Livermore National Laboratory (LLNL) in the United States. An interference coating was added to the basic protected silver design, to enhance the reflectance from 400-nm to the near infrared.

Paper Details

Date Published: 12 July 2008
PDF: 5 pages
Proc. SPIE 7010, Space Telescopes and Instrumentation 2008: Optical, Infrared, and Millimeter, 70104E (12 July 2008); doi: 10.1117/12.789996
Show Author Affiliations
D. A. Sheikh, Surface Optics Corp. (United States)
S. J. Connell, Surface Optics Corp. (United States)
R. S. Dummer, Surface Optics Corp. (United States)


Published in SPIE Proceedings Vol. 7010:
Space Telescopes and Instrumentation 2008: Optical, Infrared, and Millimeter
Jacobus M. Oschmann; Mattheus W. M. de Graauw; Howard A. MacEwen, Editor(s)

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