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. 21, 2003
Filed:
Nov. 22, 2000
Satoshi Kuwabara, Ogaki, JP;
Hiroshi Yamashita, Ichinomiya, JP;
Toru Yamamura, Ichinomiya, JP;
Nobuhito Nishida, Ogaki, JP;
Masashi Ochiiwa, Ogaki, JP;
Michiaki Satou, Ichinomiya, JP;
Sanyo Electric Co., Ltd., Osaka-fu, JP;
Abstract
In this surface light source device, light is incident from a plurality of point light sources arranged on a one side end surface of a light guide plate is reflected on a light reflecting surface on a rear surface of the light guide plate and is emitted from a front surface of the light guide plate The point light sources comprise white light emitting diode elements. Two white light emitting diode elements out of six of the white light emitting diode elements having chromaticity outermost from a center of an aimed chromaticity range in opposite hue directions are arranged in an approximately center of a group of the white diode elements.