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. 06, 2012
Filed:
Sep. 15, 2009
Kazunari Higuchi, Yokohama, JP;
Sumio Hashimoto, Yokosuka, JP;
Takayoshi Moriyama, Miura, JP;
Shinichi Kumashiro, Yokohama, JP;
Kazunari Higuchi, Yokohama, JP;
Sumio Hashimoto, Yokosuka, JP;
Takayoshi Moriyama, Miura, JP;
Shinichi Kumashiro, Yokohama, JP;
Toshiba Lighting & Technology Corporation, Kanagawa, JP;
Abstract
A light source unit is provided with a substrate and segments of a reflector. The substrate has a plurality of light-emitting devices mounted on its central and peripheral portions. The segments correspond to the light-emitting devices, individually. The segment corresponding to the light-emitting devices mounted on the central portion are higher in thermal radiation capacity than the segment corresponding to the light-emitting devices mounted on the peripheral portion.