Patent ID: 7891816
Filing Date: 2011-02-22
Classification: H04N

Abstract:
1. A stereoscopic digital image projector comprising: a) a plurality of light modulation assemblies, each comprising: at least one solid-state light source energizable to provide illumination having a first polarization axis; a polarization rotator disposed in the path of the polarized illumination from the solid-state light source(s) and actuable to controllably rotate the polarization axis from the solid-state light source(s) to a second polarized axis; and a micro-electromechanical spatial light modulator in the path of the polarized illumination and energizable to modulate the polarized illumination to form a first modulated light from illumination of the first polarization state and to form a second modulated light from illumination of the second polarization state; b) a synchronizing means to temporally control the polarization rotation to match the appropriate image data on the spatial light modulator; and c) projection optics for directing the first and second modulated light toward a display surface.