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:
Jan. 26, 1988
Filed:
Jun. 18, 1982
Applicant:
Inventor:
William J Riley, Jr, Hamilton, MA (US);
Assignee:
EG&G, Inc., Wellesley, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
H05B / ; H05B / ; H05B / ;
U.S. Cl.
CPC ...
315224 ; 315248 ; 315291 ; 315307 ; 331109 ; 323312 ; 363 73 ;
Abstract
The output of an alkali vapor lamp for use in an optical pumping system is stabilized by use of a feedback circuit which regulates current flow from a power supply to an electronic power oscillator used to excite the alkali vapor lamp. Starting of the alkali vapor lamp is facilitated by increasing supply current to the oscillator until the alkali vapor lamp is lit.