Patent ID: 6814443
Filing Date: 2004-11-09
Classification: G03B

Abstract:
A projection system for display of images in a wide range of ambient light conditions comprising:a) a system control means for synchronizing three or more images for projection by projection means, wherein said synchronization of the images provides a means for the generation of a coherent single image and wherein said system control means stores a plurality of images and sequence information; b) a screen unit comprising three screens compatible with a rear projection system, wherein said screens have a thickness of less than one inch, wherein said screens are positioned side by side to form the screen unit having a perimeter, wherein the perimeter of the screen unit is enclosed by a frame having a thin profile, wherein each screen receives a projected image from a particular projection means and wherein said screens incorporate a contrast enhancing means which improves the resistance of the projected image to contrast degradation due to a wide range of ambient light conditions; and c) three projection means for projecting images, wherein said projection means are installed approximately twice the projected width behind the screen unit, wherein each projection means is encased in a protective enclosure and wherein the synchronization of said projection means is controlled by the system control means, wherein said projection means and said screen unit are suspended from a ceiling and wherein a region separating said projection means and said screen unit is not enclosed.