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:
Dec. 20, 2011
Filed:
Apr. 09, 2010
Masaru Inoue, Kanagawa-Ken, JP;
Keiichi Shimizu, Kanagawa-Ken, JP;
Sumio Hashimoto, Kanagawa-Ken, JP;
Hirokazu Otake, Kanagawa-Ken, JP;
Mitsuhiko Nishiie, Shizuoka-Ken, JP;
Takuro Hiramatsu, Kanagawa-Ken, JP;
Masatoshi Kumagai, Kanagawa-Ken, JP;
Masaru Inoue, Kanagawa-Ken, JP;
Keiichi Shimizu, Kanagawa-Ken, JP;
Sumio Hashimoto, Kanagawa-Ken, JP;
Hirokazu Otake, Kanagawa-Ken, JP;
Mitsuhiko Nishiie, Shizuoka-Ken, JP;
Takuro Hiramatsu, Kanagawa-Ken, JP;
Masatoshi Kumagai, Kanagawa-Ken, JP;
Toshiba Lighting & Technology Corporation, Tokyo, JP;
Abstract
A lighting apparatus comprises a housing and a first reflector. The first reflector is mounted beneath the light source and includes a plurality of segmented reflectors, each having at its top, a installation hole and at its bottom, an opening wider than the installation hole. A second reflector is positioned beneath the first reflector. The height of the second reflector causes a first light shielding angle defined by a straight line passing through the installation hole and the bottom edge of the corresponding segmented reflector to be larger than a second light shielding angle defined by a straight line passing through the bottom edge of the segmented reflector and the bottom edge of the second reflector.