Patent ID: 7403320

Claim:
A 2-channel display system comprising two spatially separate channels, simultaneously feeding two polarization coded images into a common light path out of which said images may be separated by a polarization decoding system; unpolarized light of at least one light source, comprising at least 3 spectral components, which are sufficient to span a color space; a polarization split system PBS 1 with a plane of incidence P 1 POI or polarization conversion systems simultaneously generating two spatially separated light beams of a different linear polarization feeding the two channels; SLMs (spatial light modulators) of the MEMS type (Micro Electro Mechanical System), at least one in each channel, characterized by modulating light via the direction of the reflection of the incident light beam; MEMSs positioned such that the axis of the incident light beam differs from the axis of the modulated “ON”-light beam, the modulated “ON” beam being reflected normal to the MEMS surface; said MEMS having a stereo-isomeric topology with regard to mirror deflection axes and image raster, and both stereo-isomeric topologies being used; a polarization combining system PBS 2 with a plane of incidence P 2 POI for superimposing the two spatially modulated “ON ” light beams of each channel into a common “ON ” light beam, the polarization combining system being spatially separated from the polarization split system; means to control the mirror arrays of the MEMS in both channels independently from each other; MEMSs rotated so that the mirror deflection axes of the MEMSs of the two channels are parallel in their virtual projection in the superposition image.