Patent ID: 6554434
Filing Date: 2003-04-29
Classification: G03B,G06F

Abstract:
An interactive projection system for displaying an image on a planar surface, the system comprising:a projector housed in a base, the projector having an image projecting portion that projects an image along a projection path away from the projector; a convex mirror; at least one support connected to the base and supporting the convex mirror at a position along the projection path so as to face the image projecting portion; a position indicator for indicating a position on the planar surface; a camera mounted on the base and having an image-pick-up portion facing the convex mirror, the camera detecting the position indicated by the position indicator as reflected from the convex mirror; and a processor for determining positional relationship of the position indicated by the position indicator and the displayed image on the planar surface, and controlling the projector to include a cursor in the image at the position indicated by the position indicator.