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:
Aug. 23, 1988
Filed:
Jun. 09, 1983
George J English, Reading, MA (US);
Harold L Rothwell, Jr, Rowley, MA (US);
Mark Beschle, Danvers, MA (US);
GTE Products Corporation, Danvers, MA (US);
Abstract
A single-ended metal halide discharge lamp includes an elliptical-shaped envelope having a pair of electrodes sealed therein and a fill gas which includes metal halogen selected in accordance with the ionization potentials thereof to provide 'white' light with minimal color separation. In another aspect, the above-described lamp is fabricated by a process wherein an elliptical-shaped envelope is formed, a pair of electrodes sealed therein and a gas fill is selected including argon, mercury and additive halogen gases selected in accordance with the ionization potentials thereof to provide 'white' light with minimal color separation.