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:
Aug. 10, 1982
Filed:
Mar. 27, 1980
Applicant:
Inventors:
William Phillips, Princeton, NJ (US);
Clyde C Neil, Levittown, PA (US);
Jacob M Hammer, Plainsboro, NJ (US);
Assignee:
RCA Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; B05D / ; B05D / ;
U.S. Cl.
CPC ...
430321 ; 148-63 ; 427162 ; 427163 ;
Abstract
Enhanced optical coupling by phase evanescent fields is achieved by covering the planar layer of a waveguide with a thin metal oxide film incorporating a relief phase grating. The grating is originally formed in a metallic film covering the planar layer, which metallic film is converted to a metal oxide film by heating in an oxygen-containing atmosphere.