Presentation system using laser pointer

摘要

A presentation system using a laser pointer, comprises: a screen device; a projecting device for projecting a visible image onto the screen device; and a laser pointer operated by a user, and projecting a laser beam onto the screen device. The laser pointer comprises: an infrared light emitting device for emitting an infrared light approximately in the same direction as a projection direction of the laser beam; and a switching device for switching the mode between a laser pointer mode for projecting the laser beam and a mouse mode for emitting the infrared light from the infrared light emitting device. The presentation system further comprises: an infrared light sensing device for sensing a projected image of the infrared light emitted from the infrared light emitting device to the screen device; and a processing section for generating movement data consisting of a movement direction and a movement distance of the projected image of the infrared light sensed by the infrared light sensing device, and for supplying the movement data to the projecting device. The projecting device projects a mouse image onto the screen device based on the movement data supplied from the processing section.