PURPOSE: A screen bowling simulator is provided to project the information of the locus and speed of a bowling ball. CONSTITUTION: A screen bowling simulator is as follows. A first sensor(4) senses an initial fall point. A second sensor(5) senses the progressive direction of a ball not detected from the first sensor and transmits the information to a PC. A third sensor(6) senses the progressive direction and rotation of the ball and transmits the information to the PC. The analysis information of sensors and the picture of the bowling alley are transmitted to a projector(2). The progressive direction of the ball is shown. The ball is stopped by a ball stop cushion and is automatically transferred to a user.
