Metallic mirror, metallic rotary polygonal mirror, and process for their production
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United States of America Patent
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Jul 12, 2005
Grant Date -
Sep 27, 2001
app pub date -
Dec 22, 2000
filing date -
Dec 24, 1999
priority date (Note) -
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Abstract
A metallic mirror comprising a substrate made of aluminum or an aluminum alloy, and superposingly provided thereon, in order, an intermediate TiO2 layer and a metallic reflective in layer. The metallic mirror may be a metallic mirror which further comprises a protective layer including at least an Al2O3 layer formed by vacuum deposition on the metallic reflective layer. Also disclosed is a process for producing a metallic mirror, comprising the steps of forming the intermediate layer by vacuum deposition on a metallic polygonal mirror substrate metal, forming the metallic reflective Cu layer by vacuum deposition on the intermediate layer, and forming the protective layer by vacuum deposition on the metallic reflective layer.
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