发明名称 |
Projector color correction to target white points |
摘要 |
A system for adjusting the color of a light source comprises a first polarizer to polarize the light source, a fixed retarder with its optical axis at a first angle to the polarized light, an electronically variable retarder with its optical axis at a second angle to the polarized light and a second polarizer to polarize the resultant light. This light source may be used where light of adjustable color is needed, for example in a theatrical spotlight or a liquid crystal projection system.</PTEXT>
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申请公布号 |
US6631992(B2) |
申请公布日期 |
2003.10.14 |
申请号 |
US20010822458 |
申请日期 |
2001.03.30 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
BRENNESHOLTZ MATTHEW SCOTT |
分类号 |
G02F1/01;G02F1/1335;G02F1/13357;G02F1/13363;H04N9/31;(IPC1-7):G03B21/00;G03B21/14;G03B21/26;G02F1/133;G02B5/30 |
主分类号 |
G02F1/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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