Abstract: In a game medium passage detecting apparatus, optical sensors are arranged in correspondence with detection areas which are adjacent to one another in a cross direction of a game board surface. Each of the optical sensors has a light emitting element and a photoelectric detecting element. The light emitting elements and the photoelectric detecting elements are arranged such that the optical axis of the detection light extends in the direction which crosses a flat surface containing an axis extending in the depth direction of the game board surface parallel to the game board surface, crosses an axis perpendicular to the game board surface, and passes obliquely through the game board surface.

Abstract: In a game medium passage detecting apparatus, a plurality of optical sensors are arranged in correspondence to a plurality of detection areas which are set to be adjacent to one another in a cross direction of a game board surface. Each of the optical sensors has a light emitting element and a photoelectric receiving element. The light emitting elements and the photoelectric receiving elements are arranged such that the optical axis of the detection light extends in the direction which crosses a flat surface containing therein an axis extending in the depth direction of the game board surface in parallel with the game board surface and an axis intersecting perpendicularly the game board surface, and also passes obliquely through the game board surface.

Abstract: The present invention provides an image synthesizing system for forming a synthesized image by superimposing two images one on another through a half mirror. The image synthesizing system includes a half mirror located in an optical path extending toward a display section; a diorama disposed in one of the transmissive- and reflective-side optical paths and having at least one movable part; and a video display disposed in the other of said transmissive- and reflective-side optical paths such that the video scene of said video display will be superimposed over the image of said diorama through said half mirror. The video scene is superimposed over the image of the diorama to form a synthesized scene such that the video scene is variable in combination with the motion of the movable part in the diorama.