| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine capable of executing a powerful performance.SOLUTION: A screen device comprises: an N (N: an integer of 2 or more) number of substrates; an N-1 number of three-dimensional members individually disposed of two paired substrates in a manner to correspond to the individual pairs of two adjacent ones of the N number substrates and made three-dimensionally extendible; and a drive mechanism for moving, in the N number substrates, two substrates of individual pairs between a first position, at which the substrates are close to each other, and a second position, at which the same are spaced from each other. The individual N-1 number substrates are in an accommodated state, in which the substrates are held in a folded state between those two substrates, and in an extended state, in which the substrates are erected and stereoscopically extended with respect to those two substrates, when the pairing substrates are arranged at the second position, so that the irradiation light from a projector can be irradiated.SELECTED DRAWING: Figure 145 |
