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:
Jul. 21, 2015
Filed:
Jan. 15, 2014
Hitachi Maxell, Ltd., Osaka, JP;
Yuya Ogi, Tokyo, JP;
Satoshi Ouchi, Tokyo, JP;
Seiji Murata, Tokyo, JP;
Hidenao Kubota, Ibaraki, JP;
HITACHI MAXELL, LTD., Osaka, JP;
Abstract
A lighting device according to the present invention includes: a curvedly shaped base chassis having a reflection layer on its inner surface; an optical sheet facing the reflection layer to output illuminating light of the lighting device; a light source group, disposed between the base chassis and the optical sheet, including first light sources and second light sources emitting light in mutually opposite directions; a light source substrate mounted with the light source group, and a light distribution adjusting member, covering the optical sheet side of the light source group, to direct light from the light source group into predetermined directions. The directions of light emission from the light source group are in parallel with the light output surface of the optical sheet. The reflection layer is curved such that a portion thereof on each of the two direction sides is concave away from the optical sheet.