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:
Oct. 27, 2020
Filed:
Feb. 27, 2018
Omron Corporation, Kyoto, JP;
Shinji Miyazaki, Saitama, JP;
Kota Yonezawa, Saitama, JP;
Masakazu Komano, Nara, JP;
Tetsuo Hayashi, Saitama, JP;
Junichiro Tsuji, Saitama, JP;
Daido Uchida, Osaka, JP;
Koichi Takemura, Saitama, JP;
Kazunori Harada, Saitama, JP;
Takashi Onishi, Osaka, JP;
Kazuhide Hirota, Shiga, JP;
Kazuyuki Otake, Saitama, JP;
Omron Corporation, Kyoto, JP;
Abstract
A surface light source device includes a light source; a light guide plate that has a light entrance surface through which light enters, and that emits the light entering through the light entrance surface from a light exit surface; a wiring board; and a metal frame. The metal frame includes a bottom portion having a bottom surface that faces a surface on an opposite side to the light exit surface, a side wall erected on an outer periphery of the bottom surface, and a projecting portion provided on the side wall so as to project toward the bottom surface side. The metal frame houses the light source, the light guide plate, and the wiring board. At least a part of the light source is disposed between the bottom portion and the projecting portion, and the wiring board is disposed between the light source and the bottom portion.