| 摘要 |
PROBLEM TO BE SOLVED: To provide a projector capable of preventing projection light from being exposed to a person or an object positioned behind out of a projection surface when the projection surface is shifted in the projection direction of the projector.SOLUTION: When a projector is turned on, control means executes a projection distance confirming operation (step S202), and when it is determined that a projection distance is within a projection permission distance (step S203: Y), a light source is turned on (step S207), and a shutter is opened (step S208), and an image is projected (step S209). |
