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:
Nov. 18, 2003
Filed:
Apr. 26, 2001
Applicant:
Inventor:
Edward E. Hammer, Mayfield Village, OH (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 1/88 ; H01J 6/1067 ;
U.S. Cl.
CPC ...
H01J 1/88 ; H01J 6/1067 ;
Abstract
A low-wattage fluorescent lamp is provided. The lamp has at least one mercury cold spot region effective to maintain the mercury in the lamp at less than 30° C., preferably 25° C., in an enclosed lamp fixture. The lamp also features a reduced distance between electrodes resulting in less power being required to sustain an electric arc discharge during operation of the lamp. The lower power electric arc generates less heat to raise the temperature of mercury vapor within the lamp.