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:
Apr. 08, 2014
Filed:
May. 14, 2012
Kozo Ogawa, Kanagawa, JP;
Kiyoshi Nishimura, Kanagawa, JP;
Nobuhiko Betsuda, Kanagawa, JP;
Hiroki Tamai, Kanagawa, JP;
Akiko Saito, Kanagawa, JP;
Kozo Ogawa, Kanagawa, JP;
Kiyoshi Nishimura, Kanagawa, JP;
Nobuhiko Betsuda, Kanagawa, JP;
Hiroki Tamai, Kanagawa, JP;
Akiko Saito, Kanagawa, JP;
Toshiba Lighting & Technology Corporation, Kanagawa, JP;
Abstract
The light source unit is provided with a substrate and a decorative cover having thermal conductivity. The substrate includes a circuit pattern area, in which a plurality of LED chips are disposed, at the middle part thereof, has thermal conductivity, and transmits heat from the circuit pattern area to an area in the outer circumferential direction thereof. The decorative cover encloses the substrate, is electrically insulated from the circuit pattern area, and is thermally coupled to the surface side of the substrate at the periphery of the circuit pattern area by being face-contacted thereto. Heat of the substrate can be radiated by the decorative cover while securing an electric insulation property with respect to the circuit pattern area.