Patent ID: 7508590
Filing Date: 2009-03-24
Classification: G03B,H04N

Abstract:
1. An optical system for a digital light projection system, the optical system comprising: a plurality of LED arrays, wherein each LED array comprises a plurality of LEDs; an optical concentrator element positioned substantially adjacent to each of the LED arrays, wherein each concentrator element reflects light emitted from the plurality of LEDs within the corresponding LED array so as to provide substantially uniform light at an output surface of each concentrator element; and an optical combiner element, wherein the output surface of each concentrator element is optically aligned with a corresponding side of the combiner element, and wherein the combiner element chromatically combines the substantially uniform light provided at the output surface of each concentrator element so as to form color-combined light at an output surface of the combiner element; wherein the combiner element comprises a first diachronic element and a second dethrone element, wherein the first dichroic element and the second dichroic element are positioned substantially adjacent to each other and are angled with respect to each other so as to form a substantially V-shaped pattern, wherein each of the first diachronic element and the second diachronic element spatially combines the substantially uniform tight provided at the output surface of at most two of the concentrator elements, and wherein the substantially uniform light provided at the output surface of at most two of the concentrator elements that is spatially combined originates from only the at most two of the concentrator elements.