Patent ID: 7236301
Filing Date: 2007-06-26
Classification: A63G,A63J,B44F,G02B

Abstract:
1. A projection system for making an object appear or disappear behind a textured surface to an observer comprising: a polarized window placed in front of an object, the polarized window having a transmissive axis and a reflective axis; a polarization maintaining backplate behind the object; a textured surface placed in front of the polarized window that is at least partially transparent, and a polarized light source placed in front of the textured surface and configured to transmit polarized light toward the textured surface, the object, and the backplate; wherein adjusting the polarization of the polarized light causes an image of the object, as viewed by an observer positioned between the polarized light source and the textured surface, to transition, from being visibly projected from the backplate onto the textured surface to being invisible to the observer in front of the textured surface, and wherein the polarization of observed light is the same as the polarization of the polarized light source.