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:
Feb. 14, 2012
Filed:
Apr. 12, 2007
Yoshitaka Yoneda, Shinjuku-ku, JP;
Sei-ichi Yokoyama, Shinjuku-ku, JP;
Yoshitaka Yoneda, Shinjuku-ku, JP;
Sei-ichi Yokoyama, Shinjuku-ku, JP;
Hoya Candeo Optronics Corporation, Toda-Shi, JP;
Abstract
To Provide a polarizing glass with better weatherability than conventional polarizing glasses, affording high long-term reliability without the above-described surface deterioration. To provide an optical isolator employing polarizing glass of improved weatherability, affording good weatherability and high reliability for extended periods. A polarizing glass comprising geometrically anisotropic particles dispersed in an oriented manner in at least one surface layer of a glass base body. The glass base body does not comprise an oxide of alkali earth metal and PbO, and consists of borosilicate glass comprising at least one additive component selected from the group consisting of YO, ZrO, LaO, Ce O, CeO, Ti O, VO, TaO, WO, and NbO, and the geometrically anisotropic metal particles are metallic cupper particles. An optical isolator employing the polarizing glass.