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:
Jul. 04, 1995
Filed:
Dec. 15, 1993
Applicant:
Inventors:
Roger J Araujo, Horsheads, NY (US);
Nicholas F Borrelli, Elmira, NY (US);
Josef C Lapp, Corning, NY (US);
David W Morgan, Corning, NY (US);
Assignee:
Corning Incorporated, Corning, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; C03B / ; C03C / ; C03C / ;
U.S. Cl.
CPC ...
359361 ; 65 321 ; 65 323 ; 359490 ; 501 53 ; 501 56 ; 501905 ;
Abstract
A UV-absorbing, polarizing glass article and method of making, the glass having an R.sub.2 O-B.sub.2 O.sub.3 -SiO.sub.2 base glass composition, a sharp spectral cut-off at about 400 nm, a precipitated crystal phase consisting of a halide selected from the group composed of cuprous, cadmium and mixed cuprous-cadmium halides, the crystallites in the crystal phase being elongated, and a portion of the crystallites near the surface of the article being at least partially reduced to colloidal copper, whereby the article exhibits permanent dichroic behavior.