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:
Feb. 08, 1977
Filed:
Sep. 02, 1975
Applicant:
Inventor:
William H Lake, Novelty, OH (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
315 51 ; 315 60 ; 3152 / ; 315234 ; 315335 ;
Abstract
In a discharge lamp where the arc tube has main electrodes and a starter electrode, there is provided a voltage doubling circuit comprising a diode and a capacitor connected in series across the input terminals. The circuit is poled to generate a positive potential at the junction of diode and capacitor which is coupled through a resistor to the starter electrode. Voltage doubling may be provided across the gap from starter to adjacent main electrode or from starter to remote main electrode to improve starting. Where the arc tube contains sodium, the positive potential may also be applied to the arc tube frame to reduce sodium loss by electrolysis.