| 摘要 |
<p>A projection image display includes two light sources (102, 105), condenser devices (103, 106) for condensing light beams from the light sources, a time-division color separating optical system (108) for changing the color of the inputted light to a first, second, or third color temporally and outputting the light of the changed color, a light valve (118) capable of modulating incident light for each pixel independently, illumination optical systems (111, 112, 114) for directing the light from the time-division color separating optical system to the light valve, and a projection optical system (123) for projecting magnified image of the pixels on the light valve. The light beams from the two light sources (102, 105) are focused and superimposed. The light beams from the two light sources (102, 105) are condensed on or near the time-division color separating optical system (108) and superimposed on each other by the condenser devices (103, 106). As a result, a projection image display of time-division drive type provides a high-luminance projected picture without causing an increase in size of the apparatus and a rise in manufacturing cost.</p> |
