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:
Jan. 31, 2017
Filed:
Feb. 20, 2014
Panasonic Corporation, Osaka, JP;
Osamu Tanahashi, Kyoto, JP;
Yoshiyuki Miyake, Osaka, JP;
Tadashi Murakami, Osaka, JP;
Hideharu Kawachi, Hyogo, JP;
Abstract
A lighting deviceincludes a planar light-emitting paneland a translucent materialdisposed on a light-emitting surface side of the planar light-emitting panel. The planar light-emitting panelhas a light-emitting regionA and a non-light-emitting regionB. The translucent materialhas a reflection partin a region facing the non-light-emitting regionB. Light emitted from the planar light-emitting paneland guided into the translucent materialis reflected by the reflection partand emitted to the front side of the non-light-emitting regionB. Accordingly, the front side of the non-light-emitting regionB does not become a dark section, so that it is capable of increasing the light irradiation region and giving the light irradiation surface having uniform illuminance even if the plural lighting devicesare arranged in a matrix form.