10.4: High-Performance LCoS Optical Engine Using Cartesian Polarizer Technology

An efficient and economical LCOS optical engine has been designed for high definition rear projection television. The design uses a 3M™ VikuitiT Optical Core comprising three Cartesian PBSs and an X-Cube color combiner. The first prototype engine built with this core delivers 400 lm color corrected, near 9000K color temperature with contrast over 1000:1, using a 100W lamp without polarization conversion.