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. 12, 1989
Filed:
Nov. 03, 1988
Applicant:
Inventors:
A Bowman Budinger, Westford, MA (US);
Wojciech W Byszewski, Concord, MA (US);
Joseph M Proud, Wellesley Hills, MA (US);
Assignee:
GTE Laboratories Incorporated, Waltham, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313492 ; 313616 ;
Abstract
A beam mode discharge lamp typically has a shortcoming in that emitted light is reduced due to the deposition of cathode material on the phosphor surface. Such deposition can be reduced through the addition of a conductive mesh about the filaments to entrap cathode material and inhibit same from attacking the phosphor material.