6 October 2000 Silver coating of the Subaru telescope IR secondary mirror
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Proceedings Volume 4231, Advanced Optical Manufacturing and Testing Technology 2000; (2000) https://doi.org/10.1117/12.402768
Event: International Topical Symposium on Advanced Optical Manufacturing and Testing Technology, 2000, Chengdu, China
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.
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Takeshi Noguchi, Saeko S. Hayashi, Tomio Kanzawa, Tomio Kurakami, Masami Yutani, Norio Ohshima, Goro Sasaki, Yukiko Kamata, "Silver coating of the Subaru telescope IR secondary mirror", Proc. SPIE 4231, Advanced Optical Manufacturing and Testing Technology 2000, (6 October 2000); doi: 10.1117/12.402768; https://doi.org/10.1117/12.402768
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