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:
Dec. 13, 2011
Filed:
Dec. 06, 2007
Khaled Jabri, Kanagawa, JP;
Atsushi Arai, Tokyo, JP;
Hiromichi Nishimura, Kanagawa, JP;
Yoshihiko Noro, Kanagawa, JP;
Dai Takeda, Tokyo, JP;
Khaled Jabri, Kanagawa, JP;
Atsushi Arai, Tokyo, JP;
Hiromichi Nishimura, Kanagawa, JP;
Yoshihiko Noro, Kanagawa, JP;
Dai Takeda, Tokyo, JP;
Okamoto Glass Co., Ltd., Chiba, JP;
Abstract
A glass polarizer applicable to projection-type liquid crystal displays and the like and having an excellent transmittance and extinction ratio with respect to light in the visible light region (500 nm to 600 nm) using silver halide containing glass as a starting material is provided. A glass polarizer for visible light according to the present invention is a polarizer manufactured by heating and stretching borosilicate glass in which silver halide particles are dispersed and deposited by heat treatment and reducing at least a portion of silver halide particles oriented and stretched in the glass to produce metallic silver particles. An average transmittance (T⊥ % 500 to 600 nm) in a wavelength range of 500 nm to 600 nm of light having a polarization plane perpendicular to a longitudinal direction of metallic silver particles having shape anisotropy that is uniaxially oriented and dispersed is 75% or more and an extinction ratio in the wavelength range is 25 dB or more.