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. 23, 1999
Filed:
Nov. 13, 1997
Applicant:
Inventors:
Raymond A Smith, Severna Park, MD (US);
Edward H Hooper, Baltimore, MD (US);
Assignee:
Northrop Grumman Corporation, Los Angeles, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
315248 ; 315267 ; 315344 ;
Abstract
An RF source is periodically pulsed for exciting an electrodeless light bulb in an on-off mode so as to intermittently drive the bulb to a high peak power operating point where light generation efficiency is relatively high, while maintaining a relatively low average power input. Pulse rate and duration are optimized to minimize light flicker while maximizing light emission efficiency.
Smith, Raymond. (1999). Excitation circuit for an electrodeless lamp including a pulsed power (U.S. Patent No. 5990632). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5990632
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile