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:
Jun. 17, 2008
Filed:
Oct. 08, 2003
Toshihiko Ishigami, Kawasaki, JP;
Kozo Uemura, Imabari, JP;
Mikio Matsuda, Tokyo, JP;
Toshio Hiruta, Hiratsuka, JP;
Hiroyoshi Takanishi, Yokohama, JP;
Hideo Inoue, Yokosuka, JP;
Toshihiko Ishigami, Kawasaki, JP;
Kozo Uemura, Imabari, JP;
Mikio Matsuda, Tokyo, JP;
Toshio Hiruta, Hiratsuka, JP;
Hiroyoshi Takanishi, Yokohama, JP;
Hideo Inoue, Yokosuka, JP;
Harison Toshiba Lighting Corp., Ehime-Ken, JP;
Toshiba Lighting & Technology Corporation, Tokyo, JP;
Abstract
A metal vapor discharge lamp whose near-infrared radiation is stronger than a conventional high-pressure discharge lamp, a projector utilizing this discharge lamp, and a metal vapor discharge lamp lighting device are disclosed. The metal vapor discharge lamp comprises a refractory light-transmitting hermetic vessel, a pair of electrode fixed to the hermetic vessel, and a discharge medium sealed in the hermetic vessel and containing a halide and a rare gas. Most of the light irradiated when the discharge lamp is in the ON state has near-infrared wavelengths (750–1100 nm).