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:
May. 01, 1984
Filed:
Sep. 28, 1981
Applicant:
Inventors:
Peter D Johnson, Schenectady, NY (US);
Seth D Silverstein, Schenectady, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ; H01J / ;
U.S. Cl.
CPC ...
313 25 ; 313 47 ; 313112 ; 313113 ;
Abstract
A high intensity discharge lamp is provided with means for reflecting infrared radiation from the hot central portion of the arc tube onto the cooler end portions of the tube. The infrared reflective means may be provided by one or more infrared reflecting shields surrounding a portion of the arc tube or by an indentation in the outer glass envelope of the lamp.