| 摘要 |
The system has a projector to project a light spot onto an inner surface of a dome (1). An arm (3) horizontally moves the projector to trace a semicircle along the surface of a virtual hemisphere opposite to the dome that drives by a motor. Another motor changes a projecting direction of the projector. A computer stores a program to controls the rotation of the motors such that the spot is swept to any point on the surface. |
