Patent ID: 7325956
Filing Date: 2008-02-05
Classification: G02B,G03B,H04N,Y10S

Abstract:
1. A light illumination system for projecting a color image comprising: a first, second and third light emitting diode (LED) illumination assembly each operable to generate a different monochromatic color light beam; a non-polarized dichroic combiner for combining non-polarized light inputs from each different color light beam into a common light path; at least one tapered optical waveguide for colliminating, homogenizing and shaping light from each of the first, second and third LED illumination assembly to the non-polarized dichroic combiner such that an input of the tapered optical waveguide has less cross-sectional area than its output; a digital micro-mirror display (DMD) panel; and a condenser lens system for directing light from the dichroic combiner to the DMD panel.