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. 03, 2008
Filed:
Jul. 14, 2003
Tomoyoshi Yamashita, Kanagawa, JP;
Yasuko Hayashi, Kanagawa, JP;
Issei Chiba, Kanagawa, JP;
Mitsubishi Rayon Co., Ltd., Tokyo, JP;
Abstract
A planar light source system having an LED () serving as a primary light source of substantially point-shaped light source, a light guide () having a light incident face on which light emitted from the LED () is incident and a light emission face () from which light guided through the light guide () is emitted, a light deflecting device () for controlling the direction of the emission light from the light guide (), and a reflection sheet (). LED () is disposed at a corner portion of the light guide (), and many elongated prisms () are arranged substantially arcuately in parallel to each other on the light incident surface () of the light deflecting device () so as to surround LED ().