发明名称 |
Color field sequential projector including polarized light beam splitter and electronically controllable birefringence quarter waveplate |
摘要 |
A color field sequential projector includes an electronically controllable quarter waveplate positioned between a reflection device and a polarized light beam splitter, wherein the controllable quarter waveplate is switched to be optimum for particular wavebands as the illumination distribution changes during a color field sequence. The electronically controllable quarter waveplate provides for improved contrast performance and color purity in the projected image.
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申请公布号 |
US6712472(B2) |
申请公布日期 |
2004.03.30 |
申请号 |
US20020075469 |
申请日期 |
2002.02.13 |
申请人 |
SHARP LABORATORIES OF AMERICA, INC. |
发明人 |
FLORENCE JAMES M. |
分类号 |
G03B21/14;(IPC1-7):G03B21/14;G03B21/00 |
主分类号 |
G03B21/14 |
代理机构 |
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代理人 |
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主权项 |
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