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:
Oct. 03, 2006
Filed:
Nov. 03, 2003
Nobuhiro Tamura, Yokosuka, JP;
Seiko Kawashima, Yokosuka, JP;
Takuya Honma, Yokosuka, JP;
Hiromichi Kawashima, Imabari, JP;
Hiroyuki Kato, Imabari, JP;
Makoto Deguchi, Imabari, JP;
Nobuhiro Tamura, Yokosuka, JP;
Seiko Kawashima, Yokosuka, JP;
Takuya Honma, Yokosuka, JP;
Hiromichi Kawashima, Imabari, JP;
Hiroyuki Kato, Imabari, JP;
Makoto Deguchi, Imabari, JP;
Harison Toshiba Lighting Corp., Imabari, JP;
Toshiba Lighting & Technology Corporation, Tokyo, JP;
Abstract
A metal halide lamp comprises a discharge container including a discharge space and a pair of sealing sections. A discharge medium containing a metal halide and a rare gas and essentially free from mercury is sealed in the discharge container. A pair of electrodes are arranged to face each other within the discharge space, and the side edge portions on the side of the proximal end portion of these electrodes are held by the sealing sections. The amount of water contained in the metal halide, i.e., the light-emitting material, included in the metal halide lamp essentially free from mercury, i.e., Hg-less metal halide lamp, is controlled to 50 ppm or less.