| 摘要 |
<p>PURPOSE: To obtain a single plate optical unit which has a simple constitution and which is efficient in use of light, and a display device. CONSTITUTION: In the unit, light is separated into a multiple number of colors by a dichroic mirror, the multiple number of colors reflected from the dichroic mirror are radiated onto a rotating polyhedron, the multiple number of colors of light emitted from the rotating polyhedron are radiated onto different positions of a display element and by rotating the polyhedron, a color image is projected from a projecting lens by having the light of the multiple number of colors moved in one direction on the display element.</p> |
