| 摘要 |
<p>PURPOSE:To project the images shown on a plurality of cathode-ray tubes with one projection lens. CONSTITUTION:The images shown on a plurality of cathode-ray tubes 2R, 2B, and 2G are formed, severally, on one side each of a plurality of space light modulating elements 4R, 4G, and 4B through a plurality of lenses 3R, 3G, and 3B for write, and besides the light from a light source 5 for read is separated into the lights of three colors R, G, and B by a cross type three-color spectroscopic member, and the lights separated into three colors are entered into the other face side each of a plurality of space light modulating elements 4R, 4G, and 4B through a plurality of polarized beam splitters.blocks 26R, 26G, and 26B where dielectric multilayer films 26a and 26b are made separately in parallel in above and below two places, and a plurality of read lights consisting of R, G, B ingredients outputted from the other face side of these space light modulating elements 4R, 4G, and 4B are composed by three colors by means of a cross-type three-color composing member 28, and a color image made of composition of three colors is enlarged projected by one projection lens 7.</p> |
