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. 09, 2001
Filed:
Oct. 21, 1999
Applicant:
Inventors:
Nicholas F. Borrelli, Elmira, NY (US);
Dennis W. Smith, Corning, NY (US);
Assignee:
Corning Incorporated, Corning, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 1/500 ; C03B 2/7012 ; C03B 3/200 ; C03B 3/700 ;
U.S. Cl.
CPC ...
C03C 1/500 ; C03B 2/7012 ; C03B 3/200 ; C03B 3/700 ;
Abstract
Method is disclosed for making glass having both polarizing and non-polarizing regions integral thereto by either ion-exchange or by exposure to light and heat. The polarizing regions of the resulting glass is effective in polarizing light radiation, that is, the glass exhibits permanent dichroic behavior and has at least some polarizing effect in the wavelength range of 400 to 700 nm. The base glass composition contains Cu, Ag and at least one halide such that the resulting precipitated crystal phase consists of a halide.