Decoration device and game machine

Patent metadata

Field	Value
Publication number	US-2016379435-A1
Application number	US-201615153794-A
Country	US
Kind code	A1
Filing date	May 13, 2016
Priority date	Jun 26, 2015
Publication date	Dec 29, 2016
Grant date	—

Abstract

A decoration device has a display panel having a cylindrical surface shape with curvature in a first direction on which a first pattern is provided, a light source to emit visible light, and a light guide plate with a diffusing surface opposes the display panel, the diffusing surface having a concave cylindrical surface shape, an exit surface opposing the diffusing surface having a convex cylindrical surface shape. The light guide plate is provided such that the first pattern is visible from the exit surface side. The light guide plate has a plurality of prisms that are formed in the diffusing surface and reflect the visible light that enters the light guide plate from the light source through an incident surface toward the exit surface. An angle between a reflecting surface of each prism and the diffusing surface increases as the distance of the prism from the incident surface increases.

First claim

1 . A decoration device comprising:
a display panel formed to have a cylindrical surface shape with curvature in a first direction, and on which a first pattern is provided; a light source configured to emit visible light; and a light guide plate arranged such that a diffusing surface that diffuses visible light incident thereon after being emitted from the light source opposes the display panel, the diffusing surface being formed to have a concave cylindrical surface shape with curvature in the first direction, an exit surface opposing the diffusing surface being formed to have a convex cylindrical surface shape with curvature in the first direction, and the light guide plate being constituted such that the first pattern is visible from the exit surface side, wherein the light guide plate includes: an incident surface formed on an end surface that opposes the light source in the first direction of the light guide plate; and a plurality of prisms that are formed in the diffusing surface and reflect visible light that enters the light guide plate from the incident surface toward the exit surface, and each of the plurality of prisms has a reflecting surface oriented toward the incident surface side, and an angle between the reflecting surface and the diffusing surface increases as a distance of the prism from the incident surface increases.

2 . The decoration device according to claim 1 , wherein the plurality of prisms are arranged along a second pattern.

3 . The decoration device according to claim 1 , wherein each of the plurality of prisms is formed such that an area of the reflecting surface increases, the closer the prism is to the incident surface among the plurality of prisms.

4 . A game machine comprising the decoration device according to claim 1 .

Assignees

• Omron Tateisi Electronics Co

Inventors

• Muraoka Eiji
• Kakinuma Takeshi
• Takagi Yoshihiko

Classifications

• A63F9/24

  Games using electronic circuits not otherwise provided for · CPC title

• G02B6/0038

  Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide · CPC title

• A63F13/00

  Video games, i.e. games using an electronically generated display having two or more dimensions · CPC title

• G02B6/006

  to produce indicia, symbols, texts or the like · CPC title

• G07F17/3211

  Display means · CPC title