| 摘要 |
<p>A color sequential illumination system (10) for a liquid crystal light valve (48). The invention operates with no moving parts and provides for the sequential illumination of a light valve (38) with at least two beams of different colors (B, R). The rate is fast enough that the colors fuse together and the viewer sees a composite color image. The system includes a prepolarizer (12) and dichroics (14, 16) for providing a first beam along a first optical path having a first color (B) and a first polarization (P) state and a second beam (R) along a second optical path having a second color (R) and said first polarization state (P). An optical switch (20, 22) is provided for selectively transmitting the first and second beams by sequentially changing the polarization state of each. Associated optical components (40, 42) are provided for directing the first and second beams onto the liquid crystal light valve (48).</p> |
