Patent ID: 8220931
Filing Date: 2012-07-17
Classification: G02B,H04N

Abstract:
1. A stereoscopic digital image projecting system for projecting stereoscopic image data including left-eye image data and right-eye image data, comprising: a light source system energizable to provide polarized illumination having a first polarization state; a beam splitting system that alternately generates first and second light beams from the polarized illumination, the first light beam having a first polarization state and being directed along a first optical path and the second light beam having a second polarization state and being directed along a second optical path, wherein when the beam splitting system is generating the first light beam substantially no light is directed along the second optical path, and when the beam splitting system is generating the second light beam substantially no light is directed along the first optical path; a combining system comprising a polarization beam combiner that combines the first and second light beams into a combined light beam directed along a common optical path, wherein the combined light beam alternates between the first and second polarization states; a spatial light modulator modulating the combined light beam in a manner consistent with the stereoscopic image data, wherein the spatial light modulator alternately forms first and second modulated images, the first modulated image being formed by modulating the combined light beam using the left eye image data when the combined light beam is in the first polarization state and the second modulated image being formed by modulating the combined light beam using the right eye image data when the combined light beam is in the second polarization state; and projection optics configured to project the first and second modulated images.