| 摘要 |
PROBLEM TO BE SOLVED: To enhance player's interest with a video by projecting the video all over a game board in accordance with a game state, and to suppress production costs. SOLUTION: A light transmissible game board 1 and a Fresnel lens are integrally formed, the Fresnel lens formed on a rear side of the game board 1 is further divided into a game part 21 and a non-game part 22 to make different light refraction factors of the both and to parallel project projection light of the game part 21 on the game board and in a portion corresponding to the non-game part 22, a number of beams are converged to make different indication luminances at the boundary of the both in an entire image. Thus, a player can easily make a distinction from an image displayed on the game part 21, and a performance effect similar to a lamp of an ornamental member can be obtained with the image. COPYRIGHT: (C)2004,JPO&NCIPI
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