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:
Sep. 17, 2013
Filed:
Apr. 11, 2012
Nicholas Francis Borrelli, Elmira, NY (US);
Joseph Francis Schroeder, Iii, Corning, NY (US);
Thomas P. Seward, Iii, Elmira, NY (US);
Nicholas Francis Borrelli, Elmira, NY (US);
Joseph Francis Schroeder, III, Corning, NY (US);
Thomas P. Seward, III, Elmira, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
The invention is directed to a glass composition and articles made from the composition that are both polarizing and photorefractive. The glass has, for example, a composition consisting essentially of, in weight percent ('wt. %') of 70-73 SiO, 13-17% BO, 8-10% NaO, 2-4% AlO, 0.005-0.1% CuO, <0.4% Cl, 0.1-0.5% Ag, 0.1-0.3% Br. In another embodiment the composition consists essentially of 70-77% SiO, 13-18% BO, 8-10% NaO, 2-4% AlO, 0.005-0.1% CuO, <0.4% Cl, 0.1-0.5% Ag, 0.1-0.3% Br. The glass can be used make articles or elements that can exhibits both the photorefractive effect and the polarizing effect within a single element or article, and can be used to make a variety of optical elements including Bragg gratings, filtering elements, and beam shaping elements and light collection elements for use in display, security, defense, metrology, imaging and communications applications.