IP Library Granted Patent US 12,352,997
Granted Patent B2
US 12,352,997 · App. 18/600,759 · Granted Jul 8, 2025

Light guide plate unit and gaming machine

Inventors: Takahiro Ono (Kyoto, JP); Junya Fujita (Kyoto, JP); Yoshinori Ito (Kyoto, JP)
Assignee: OMRON Corporation
G02B6/0065A63F9/24G02B6/006G02B6/4239A63F2009/2454
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Quick Facts
Patent No.
US 12,352,997
App. No.
18/600,759
Granted
Jul 8, 2025
Kind
B2
Abstract

A light guide plate unit includes: a first light guide plate ( 11 ) that is a light guide plate having a glass layer, and has the glass layer on a light exit surface of a light guide plate body (D); a light source ( 14 ), located on a side surface of the first light guide plate ( 11 ) and supplying light into the light guide plate body (D); and a housing ( 30 ). The housing ( 30 ) has an opening ( 32 a ). The first light guide plate ( 11 ) is disposed, so that the side of the glass layer faces the opening ( 32 a ) of the frame ( 32 ) to block the opening ( 32 a ).

Claims (17)

1. A light guide plate unit, comprising:

a first light guide plate, having:

a first light guide plate body, formed by a transparent resin and having a light exit surface, wherein a surface on a side opposite to the light exit surface is provided with a prism;

a glass layer, disposed on a side of the light exit surface; and

an adhesive layer, disposed between the first light guide plate body and the glass layer,

a first light source, located on a side surface of the first light guide plate and supplying light into the first light guide plate body;

a housing, supporting the first light guide plate and the first light source; and

a second light guide plate, disposed in parallel with the first light guide plate,

wherein the housing has an opening, and

the first light guide plate is disposed so that a side of the glass layer faces the opening to block the opening.

2. The light guide plate unit as claimed in claim 1 , wherein the adhesive layer is provided throughout an entirety between the first light guide plate body and the glass layer.

3. The light guide plate unit as claimed in claim 1 , wherein a surface on a periphery of the opening in the housing and a surface of the first light guide plate on the side of the glass layer are flush with each other.

4. The light guide plate unit as claimed in claim 1 , wherein a plurality of the second light guide plates is provided, being disposed in parallel with the first light guide plate on a side opposite to the glass layer of the first light guide plate; and

a second light source is provided, supplying light into each of the plurality of the second light guide plates.

5. The light guide plate unit as claimed in claim 1 , wherein the first light guide plate has a through hole, and

the light guide plate unit further comprises a switch part located at the through hole and receiving an operation.

6. A gaming machine, comprising the light guide plate unit as claimed in claim 1 .

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 12, 2024
From: ONO, TAKAHIRO; FUJITA, JUNYA; ITO, YOSHINORI
To: OMRON CORPORATION
Reel/Frame 066722/0173 →
Priority Claims (1)
JP 2023-065860 · Apr 13, 2023 · national
Continuity (1)
Related Publication 20240345310A1 · Oct 17, 2024
References Cited (8)
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