Patent ID: 7959305
Filing Date: 2011-06-14
Classification: G03B

Abstract:
1. A projection display system, comprising: a graphics driver, for generating control signals according to a sequence of images to be displayed; a light source for producing light of at least one primary color; a digital micromirror device for modulating the light of at least one primary color from the light source, such modulating responsive to control signals from the graphics driver, the digital micromirror device comprised of a plurality of deflectable micromirrors for deflecting light in first and second directions responsive to the control signals from the graphics driver, wherein light deflected in the first direction is directed along a return path to the light source; projection optics, comprising at least a first lens element positioned near to the digital micromirror device, for receiving light deflected in the second direction by the digital micromirror device; a projection mirror, for reflecting light received from the projection optics; and a projection screen, positioned to receive the reflected light from the projection mirror.