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:
Nov. 04, 2003
Filed:
Dec. 20, 2000
Naoya Matsumoto, Kanagawa-ken, JP;
Hiroyuki Ogata, Kanagawa-ken, JP;
Shinji Inukai, Kanagawa-ken, JP;
Hisanori Sano, Kanagawa-ken, JP;
Satoshi Iwasawa, Kanagawa-ken, JP;
Toshiba Lighting & Technology Corporation, Tokyo, JP;
Abstract
A high-pressure metal halide discharge lamp includes a sealed light-transmitting discharge vessel, first and second electrodes disposed in the discharge space, and a pair of conductive wires connected to the respective electrodes. The sealed light-transmitting discharge vessel has a pair of seals and envelops a discharge space, which has a gas filling comprising rare gas and metal halides. A first electrode with an emitter disposed in the discharge space at an one side is made of a metal having a high melting point. A second electrode without an emitter disposed in the discharge space at the other side is made of a metal having a high melting point. The pair of conductive wires, which are connected to the respective electrodes, are located in the respective seals and extend from the discharge vessel.