The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 26, 2011
Filed:
Oct. 24, 2008
Masayuki Yamada, Tokyo, JP;
Yoshinori Kotani, Yokohama, JP;
Hiroyuki Tanaka, Kawasaki, JP;
Takeharu Okuno, Utsunomiya, JP;
Tsutomu Minami, Osaka, JP;
Masahiro Tatsumisago, Osaka, JP;
Kiyoharu Tadanaga, Osaka, JP;
Masayuki Yamada, Tokyo, JP;
Yoshinori Kotani, Yokohama, JP;
Hiroyuki Tanaka, Kawasaki, JP;
Takeharu Okuno, Utsunomiya, JP;
Tsutomu Minami, Osaka, JP;
Masahiro Tatsumisago, Osaka, JP;
Kiyoharu Tadanaga, Osaka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Osaka Prefecture University, Osaka, JP;
Abstract
It is an object to provide an optical transparent member capable of maintaining a high-performance antireflection effect for a base over a long period of time, and an optical system using the same, specifically an optical transparent member including on a base a layer containing SiOas a main component, a layer containing AlOas a main component, and a plate crystal layer formed from plate crystals containing AlOas a main component, wherein the surface of the plate crystal layer has a shape of irregularities, and an optical system using the same.