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. 04, 2006
Filed:
Jul. 01, 2003
Yoshinori Shimizu, Anan, JP;
Kensho Sakano, Anan, JP;
Yasunobu Noguchi, Anan, JP;
Toshio Moriguchi, Anan, JP;
Eiji Nakanishi, Anan, JP;
Yoshinori Shimizu, Anan, JP;
Kensho Sakano, Anan, JP;
Yasunobu Noguchi, Anan, JP;
Toshio Moriguchi, Anan, JP;
Eiji Nakanishi, Anan, JP;
Nichia Kagaku Kogyo Kabushiki Kaisha, Anan, JP;
Abstract
A light source having a planar main surface capable of emitting a white light includes a blue LED, an optical guide plate having a planar main surface and an edge face receiving injection of the light from the blue LED, and a coating material of transparent resin or glass containing fluorescent materials positioned between the blue LED and the optical guide plate. The fluorescent materials can be exited by absorption of a part of the blue light from the blue LED to emit fluorescent light and the fluorescent light can be mixed with a remaining part of the blue light to make white light in the optical guide plate.