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:
Jun. 20, 2006
Filed:
Jul. 30, 2003
Munetsugu Ehara, Anan, JP;
Hitoshi Nojiri, Anan, JP;
Eiji Nakanishi, Anan, JP;
Koichi Kunikata, Anan, JP;
Munetsugu Ehara, Anan, JP;
Hitoshi Nojiri, Anan, JP;
Eiji Nakanishi, Anan, JP;
Koichi Kunikata, Anan, JP;
Nichia Corporation, Tokushima, JP;
Abstract
An surface light emitting device that is capable of emitting light of high luminance with higher uniformity is disclosed. The surface light emitting device comprising; a light guide plate, a reflector on the under surface of the light guide plate and, an LED light source having at least one LED element and provided so that a light emitted by the LED element is incident on at least one end face of the light guide plate, wherein the light guide plate has a light diffusing portion on the one end face so that a light emitted from the LED light source enters the light guide plate while being diffused therein, and the light diffusing portion has the top end being space from the top surface.