发明名称 |
POLARIZED ILLUMINATION SYSTEM FOR LCD PROJECTOR |
摘要 |
An illumination system (10) is described that efficiently produces linear polarized light for use in LCD projection. A polarizing beam splitter (16) and half-wave retarder plate (20) produce two adjacent collimated beams of light having a common polarization direction. These adjacent beams are spatially integrated (22) into a single collimated polarized beam whose aspect ratio is subsequently converted to match that of the LCD format.
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申请公布号 |
CA2247435(A1) |
申请公布日期 |
1997.10.09 |
申请号 |
CA19972247435 |
申请日期 |
1997.03.17 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY;MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
VANDERWERF, DENNIS F. |
分类号 |
G02F1/13;G02B27/28;G02F1/1335;G02F1/13357;(IPC1-7):G02B27/10;G02F1/133;G02B27/18 |
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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