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. 09, 1982
Filed:
Mar. 18, 1980
William A Thornton, Cranford, NJ (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
High-pressure mercury-vapor lamp incorporates a special phosphor mixture on the interior surface of the outer envelope. The phosphor mixture comprises predetermined proportions and predetermined amounts of blue-violet-emitting phosphor, blue-green-emitting phosphor and red-emitting phosphor. When the composite emission of the phosphor mixture is combined with the visible light generated by the high-pressure mercury discharge, both the color rendering index and the light output of the lamp are substantially improved.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile