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:
Mar. 24, 2009
Filed:
Jan. 27, 2005
Hiroki Koba, Osaka, JP;
Shinichi Shiotsu, Osaka, JP;
Motoshi Tahara, Nara, JP;
Katsumi Terada, Kyoto, JP;
Hideki Yamamoto, Kyoto, JP;
Hiroki Koba, Osaka, JP;
Shinichi Shiotsu, Osaka, JP;
Motoshi Tahara, Nara, JP;
Katsumi Terada, Kyoto, JP;
Hideki Yamamoto, Kyoto, JP;
Sanyo Electric Co., Ltd., Moriguchi-shi, JP;
Abstract
A light source comprises a lamp such as an ultra-high pressure mercury lamp or a metal halide lamp and its irradiated light is emitted after being parallelized by a parabolic reflector. The parabolic reflector is made by pressing metal such as stainless and its light exit side aperture is covered with a transparent plate made of glass, etc. The transparent plate prevents fragments of glass of the lamp and the like from scattering when the lamp bursts. The parabolic reflector does not have an aperture (cut-out) for ventilation, but heat radiation fins are formed on the outer surface of it.