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:
Sep. 09, 1997
Filed:
Dec. 12, 1995
Applicant:
Inventors:
Scott Jennato, Candia, NH (US);
Harold L Rothwell, Jr, Hopkinton, NH (US);
Assignee:
Osram Sylvania Inc., Danvers, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
315246 ; 315291 ; 315358 ; 313637 ;
Abstract
A pulse structure for operating a method neon lamp in a multi-colored light source is described along with its pertinence to automotive lighting. The particular neon lamps are mercury-free, low pressure, rare gas lamps that can be operated as efficient red, amber, and potentially white light sources in automotive and other lighting applications. The preferred pulse structure has a leading spike to ionize the neon and generate ultraviolet radiation, and has a trailing pulse to add energy to the lamp, which increases visible neon emission efficacy.