Back-lighting system for a transmissive electrooptic modulator using the light polarization effect

摘要

The present invention relates to a back-lighting system for a transmissive electrooptic modulator using the light polarization effect. The system comprises a means 21 for generating light rays, a reflector 20 for sending the rays back in a direction x and means 25 for guiding the light rays towards the electrooptic modulator, using a reflective linear polarizing film 23 positioned in front of the said means for guiding the light rays. The invention applies to projection.