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Proceedings Paper

Silver coating of the Subaru telescope IR secondary mirror
Author(s): Takeshi Noguchi; Saeko S. Hayashi; Tomio Kanzawa; Tomio Kurakami; Masami Yutani; Norio Ohshima; Goro Sasaki; Yukiko Kamata
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Paper Abstract

We describe the silver coating of 1.3-m secondary nirror being used for infrared observations at Subaru Telescope. This was the first successful in-house runof silve coating on thelarge moern astronimical mirror. Silver was desposited over the chromium bondange layer, using a 1.6-m vacuum coating chamber at the Advanced technology Center of the National Astronomical Obervatoryof Japan in March 1998. The reflectnc eand scatter performnce are measured by micrScan at 670 nm and 1300 nm. Monitor over 17 month shows the silve coated mirror continues to maintain high refleciton.

Paper Details

Date Published: 6 October 2000
PDF: 4 pages
Proc. SPIE 4231, Advanced Optical Manufacturing and Testing Technology 2000, (6 October 2000); doi: 10.1117/12.402768
Show Author Affiliations
Takeshi Noguchi, National Astronomical Observatory of Japan (Japan)
Saeko S. Hayashi, National Astronomical Observatory of Japan (USA) (United States)
Tomio Kanzawa, National Astronomical Observatory of Japan (USA) (United States)
Tomio Kurakami, National Astronomical Observatory of Japan (USA) (United States)
Masami Yutani, National Astronomical Observatory of Japan (Japan)
Norio Ohshima, National Astronomical Observatory of Japan (Japan)
Goro Sasaki, National Astronomical Observatory of Japan (Japan)
Yukiko Kamata, National Astronomical Observatory of Japan (Japan)


Published in SPIE Proceedings Vol. 4231:
Advanced Optical Manufacturing and Testing Technology 2000
Li Yang; Harvey M. Pollicove; Qiming Xin; James C. Wyant, Editor(s)

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