| 摘要 |
PROBLEM TO BE SOLVED: To thin a detection device.SOLUTION: The game machine includes a detection device (for example, a detection unit 200) having a plurality of detection means (for example, an upper passage detection switch and a lower passage detection switch) for detecting game balls. Each of the plurality of detection means includes a light-emitting section (for example, light-emitting elements 203a and 203c) and a light-receiving section (for example, light-receiving elements 203b and 203d), and is disposed such that a light ray, when emitting light from the light-emitting section to the light-receiving section, heads for a direction substantially orthogonal to a traveling direction (an X direction) of a game ball. For example, the upper passage detection switch is disposed at a different position from the lower passage detection swith when using the traveling direction of the game ball as an axis (in concrete terms, disposed to cause a difference A in distance with respect to the traveling direction of the game ball). |
