| 摘要 |
PROBLEM TO BE SOLVED: To provide a simple and inexpensive optical decoration device that allows a player to lucidly recognize the situation of a game result by using an optical decoration body itself as a strong light emitting source and constituting it into symbols, signs and characters. SOLUTION: An optical decoration body 1 is made of transparent optical member such as acrylic, and preferably, a light is fully reflected inside the inner surfaces of the decoration body 1 and highly efficiently transmitted to an emission hole 2 of the decoration body 1. The inside 3 of the cross section in the optical decoration body is constituted into a conical shape, a clearance between the inside 3 and the external wall 4 is formed so that it become narrower as it goes toward the emission hole 2 to transmit the light from a light source 6 by internal reflection, to highly efficiently condense the light in the emission hole 2 and to diffusingly emit the light. The internal reflection may be not the full reflection but mirror reflection. When installing a plurality of light sources, conical or polygonal-pyramid reflecting members 14, 15 and 16 are disposed between the light source 6 and the optical decoration body 1 to provide this device with diversified optical decoration effect. COPYRIGHT: (C)2009,JPO&INPIT
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