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. 22, 2011
Filed:
Mar. 04, 2008
Khaled Jabri, Kanagawa, JP;
Nobuhito Takeshima, Chiba, JP;
Atsushi Arai, Tokyo, JP;
Hiromichi Nishimura, Kanagawa, JP;
Toshiharu Yamashita, Tokyo, JP;
Yoshihiko Noro, Kanagawa, JP;
Khaled Jabri, Kanagawa, JP;
Nobuhito Takeshima, Chiba, JP;
Atsushi Arai, Tokyo, JP;
Hiromichi Nishimura, Kanagawa, JP;
Toshiharu Yamashita, Tokyo, JP;
Yoshihiko Noro, Kanagawa, JP;
Okamoto Glass Co., Ltd., Chiba, JP;
Abstract
A glass polarizer having an excellent transmittance and extinction ratio with respect to light in the visible light range including blue using silver halide containing glass as a starting material is provided. A manufacturing method according to the present invention to manufacture glass polarizers is characterized in that borosilicate glass in which silver halide particles are dispersed and deposited by heat treatment is reduced to generate metallic silver particles from at least a portion of silver halide and then, heated for stretching to generate silver halide particles oriented and stretched in the glass.