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Proceedings Paper

An ultra-low surface finish process for 6061-Al mirrors
Author(s): Leonard Wamboldt; Brian Roy; Joseph Crifasi; Shane Stephens; Derek Hanninen; Kenneth Woodard; Robert Felock; Sofia Cunha-Vasconcelos; Stephen Polczwartek; Jeffrey Parenteau
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Paper Abstract

An ultra-low surface finishing process for 6061 T6 type aluminum has been developed by Corning Incorporated, Specialty Materials Division, and has been successfully applied to mirrors up to 13 inches in diameter. This paper presents finish and figure data achieved from the mirror finishing process. Mirror stability is demonstrated through Pre and post thermal cycle surface figure measurements; temperature range of cycle -55°C to +70°C. As an added benefit, the process enables the use of deterministic finishing and enhances the reflective optics resistance to corrosion. Survivability of the reflective optic is evaluated through extended humidity testing.

Paper Details

Date Published: 26 May 2015
PDF: 9 pages
Proc. SPIE 9451, Infrared Technology and Applications XLI, 94511X (26 May 2015); doi: 10.1117/12.2177522
Show Author Affiliations
Leonard Wamboldt, Corning Inc. (United States)
Brian Roy, Corning Inc. (United States)
Joseph Crifasi, Corning Inc. (United States)
Shane Stephens, Corning Inc. (United States)
Derek Hanninen, Corning Inc. (United States)
Kenneth Woodard, Corning Inc. (United States)
Robert Felock, Corning Inc. (United States)
Sofia Cunha-Vasconcelos, Corning Inc. (United States)
Stephen Polczwartek, Corning Inc. (United States)
Jeffrey Parenteau, Corning Inc. (United States)

Published in SPIE Proceedings Vol. 9451:
Infrared Technology and Applications XLI
Bjørn F. Andresen; Gabor F. Fulop; Charles M. Hanson; Paul R. Norton, Editor(s)

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