| 摘要 |
<p>A liquid crystal projector device, wherein an s-polarization PBS (4) forms light from a light source (1) a set of s-polarization components; an optical unit (7) reflects a green-region light and rotates 90.degree. the planes of polarization of a blue-region light and red-region light for outputting as p-polarization lights by reflection; a PBS (8) reflects an s-polarization green-region light and transmits p-polarization blue-region and red-region lights which are then separated from each other by a dichroic prism (9); the s-polarization green-region light is modulated into a p- polarization projected image light and reflected by a reflection type liquid crystal sheet (10G) to transmit the PBS (8); the p-polarization blue-region and red-region lighta shine on reflection type liquid crystal sheets (10B, 10R) and are modulated respectively into s- polarization projected image lights, reflected and synthesized by the dichroic prism (9) before reflected by the PBS (8) for projection by a projection lens (11).</p> |
