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:
Nov. 07, 2006
Filed:
Sep. 20, 2002
Takanobu Hori, Hyogo, JP;
Isao Tokomoto, Hyogo, JP;
Hiroshi Kajiyama, Ibaraki, JP;
Akira Kato, Ibaraki, JP;
Kenichi Onisawa, Ibaraki, JP;
Makoto Abe, Ibaraki, JP;
Shoichi Hirota, Ibaraki, JP;
Tatsuya Sugita, Ibaraki, JP;
Masaya Adachi, Ibaraki, JP;
Katsumi Kondo, Ibaraki, JP;
Takanobu Hori, Hyogo, JP;
Isao Tokomoto, Hyogo, JP;
Hiroshi Kajiyama, Ibaraki, JP;
Akira Kato, Ibaraki, JP;
Kenichi Onisawa, Ibaraki, JP;
Makoto Abe, Ibaraki, JP;
Shoichi Hirota, Ibaraki, JP;
Tatsuya Sugita, Ibaraki, JP;
Masaya Adachi, Ibaraki, JP;
Katsumi Kondo, Ibaraki, JP;
Shinmaywa Industries, Ltd., Hyogo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Disclosed is an optical system that has superior optical characteristic and wear resistance and can be formed at low temperatures. An optical systemfor adjusting visible light transmittance to have a desired value comprises fluorideand at least part of the optical system has a crystal grain diameter of 3 nm to 10 nm. The fluoridehas a specific surface area of 1 m/g to 5 m/g.