COLOR PROJECTION SYSTEM INCORPORATING ELECTRO-OPTIC LIGHT MODULATOR AND ROTATING LIGHT-TRANSMISSIVE ELEMENT

摘要

A color projection display system, comprising a rotatable color drum with transmissive segments on the surface of the drum, the segments composed of dichroic filters having different color transmission bands, a cylindrical lens mounted co-axially inside the drum, and means for focussing images of the boundaries between segments onto an electro-optical light modulator panel, whereby in operation the segment images are scrolled across the surface of the light modulator panel, synchronously with the application of color components of a display signal corresponding to the colors of the scrolling segment images, to produce a full color display image for projection to a viewing screen.