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.:

US 9599768 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 21, 2017

Filed:

Aug. 19, 2014
Applicant:

Omron Corporation, Kyoto-shi, Kyoto, JP;

Inventors:

Kenji Ozawa, Saitama, JP;

Kensuke Nambu, Saitama, JP;

Yuichi Hiraki, Saitama, JP;

Assignee:

OMRON Corporation, Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/44 (2006.01); F21V 8/00 (2006.01); G02F 1/1333 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0088 (2013.01); G02B 6/0031 (2013.01); G02F 1/133308 (2013.01); G02B 6/0065 (2013.01); G02B 6/0068 (2013.01); G02B 6/0083 (2013.01);
Abstract

A surface light source includes a light source facing an end face of a lightguide plate, a rectangular-shaped frame surrounding an outer peripheral surface of the lightguide plate, and a reflecting sheet disposed in on a lower surface of the frame. The frame includes an inside frame portion made of a white resin, and an outside frame portion made of a black resin, with the interface between the inside and outside frame portions being inclined with respect to the inside surface of the inside frame portion. The inside frame portion and the outside frame portion are integrally molded by a two-color molding method.


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Ozawa, Kenji. (2017). Surface light source device having frame with light absorbing and reflecting portions (U.S. Patent No. 9599768). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9599768

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