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:
Oct. 29, 2013
Filed:
Mar. 27, 2012
Yoshitaka Yoneda, Tokyo, JP;
Yoshitaka Yoneda, Tokyo, JP;
Hoya Candeo Optronics Corporation, Toda-shi, JP;
Abstract
The near-field extinction ratio of a polarizing glass is increased. A polarizing glass contains anisotropically shaped metal particles oriented and dispersed in a glass substrate, which contains 0.40-0.85 wt % Cl relative to the entire glass substrate. The Vickers hardness ranges from 360 to 420, the Knoop hardness number ranges from 400 to 495, or the glass substrate contains at least one component selected from the group consisting of YO, LaO, VO, TaO, WO, and NbO. The content of each of the selected components ranges from 0.05-4 mole percent, and if a plurality of the components are selected, the total content of the components is 6 mole percent or less.