发明名称 |
Dimmable illumination module for projection systems using a high-intensity discharge lamp via polarization manipulation |
摘要 |
An external electronically controlled illumination module utilizing polarizing beam splitters to split the light beam from a projection lamp into two polarization states, selectively altering the state of each polarized light beam to reject a controlled portion of the light where the selectively altered beams are recombined and passed to the projection system optics.
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申请公布号 |
US6509694(B1) |
申请公布日期 |
2003.01.21 |
申请号 |
US20010930347 |
申请日期 |
2001.08.15 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
KANE ROBERT H.;KANE STEVEN J. |
分类号 |
G02F1/13;G02B27/28;G02F1/13357;G03B21/00;G03B21/14;H04N5/74;(IPC1-7):H05B37/00 |
主分类号 |
G02F1/13 |
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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