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. 23, 2001
Filed:
Dec. 10, 1999
Applicant:
Inventors:
Pamela L. Poljak, Strongsville, OH (US);
Raghu Ramaiah, Eastlake, OH (US);
Timothy P. Dever, Fairview Park, OH (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H01J 1/346 ;
U.S. Cl.
CPC ...
H01J 1/346 ;
Abstract
A metal halide lamp, having a cold fill pressure of at least 50 torr, incorporates a starter circuit with an active device to protect the diode included therein. The active portion of the starter circuit, either removes a voltage multiplying circuit portion, from the starter circuit or shorts out the diode by shunting action of the switch. The voltage multiplier circuit portion is connected across the main electrodes, wherein the voltage multiplier circuit portion increases the starting voltage applied to the starter electrode.