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.

Date of Patent:
Sep. 03, 2019

Filed:

May. 16, 2017
Applicant:

Omron Corporation, Kyoto-shi, Kyoto, JP;

Inventors:

Junya Fujita, Ichinomiya, JP;

Yoshimasa Osumi, Kyoto, JP;

Yoshihiko Takagi, Kyoto, JP;

Assignee:

OMRON Corporation, Kyoto-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63F 7/02 (2006.01); F21V 8/00 (2006.01); G02B 6/00 (2006.01); G09F 13/00 (2006.01);
U.S. Cl.
CPC ...
G02B 6/006 (2013.01); A63F 7/02 (2013.01); G02B 6/00 (2013.01); G02B 6/0036 (2013.01); G02B 6/0068 (2013.01); G09F 13/005 (2013.01);
Abstract

A light guide plate according to one or more embodiment is formed of a panel transparent to visible light, and includes: a plurality of first prisms arranged along one surface of the light guide plate and distributed in a first pattern to reflect the visible light emitted from a first light source and entering the light guide from an input surface toward another surface of the light guide plate; and a plurality of second prisms arranged in a second pattern to reflect the visible light emitted from a second light source and entering the light guide from the input surface toward said other surface of the light guide plate. Each first prism includes a reflection surface directly facing the first light source, and each second prism includes a reflection surface directly facing the second light source.


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