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. 06, 2011
Filed:
Aug. 17, 2010
Masaya Adachi, Hitachi, JP;
Ikuo Hiyama, Hitachi, JP;
Makoto Tsumura, Hitachi, JP;
Shusuke Endo, Mobara, JP;
Masaya Adachi, Hitachi, JP;
Ikuo Hiyama, Hitachi, JP;
Makoto Tsumura, Hitachi, JP;
Shusuke Endo, Mobara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A light unit which includes a plurality of light-emitting diode (LED) light sources arranged in parallel, a light-guiding member arranged on said LED light sources, a light reflecting part for reflecting light from said LED light sources forward, a light diffusion part for outgoing light from the surface of said light-guiding member to outside, and an optical path changing part arranged above said light-diffusion part, wherein a side of said light-guiding member that faces said light diffusion part is flat.