发明名称 |
Polarisations-Beleuchtungsvorrichtung und diese verwendender Projektor |
摘要 |
<p>A polarization luminaire comprises a light source (401) for emitting light, whose polarization directions are random; a polarized light splitting means (402) having a polarized light splitting film (426) to split output light of the light source (401) into p-polarized light and s-polarized light; a first condensing mirror plate (1901) to condense the p-polarized light emitted from the polarized light splitting means (402) and to form a plurality of secondary light source images represented by the p-polarized light at first positions; a second condensing mirror plate (1902) to condense the s-polarized light emitted from the polarized light splitting means (402) and to form a plurality of secondary light source images, which are represented by the s-polarized light, at second positions slightly different from the first positions; a first quarter-wave plate (1921) between the first condensing mirror plate (1901) and the polarized light splitting means (402); a second quarter-wave plate (1922) between the second condensing mirror plate (1902) and the polarized light splitting means (402); and a light condenser lens plate (1941) which consists of lenses and a half-wave plate (446) that are placed in the vicinity of the first and second positions. <IMAGE> <IMAGE> <IMAGE> <IMAGE></p> |
申请公布号 |
DE69532691(T2) |
申请公布日期 |
2005.02.10 |
申请号 |
DE1995632691T |
申请日期 |
1995.07.21 |
申请人 |
SEIKO EPSON CORP., TOKIO/TOKYO |
发明人 |
ITOH, YOSHITAKA;YONENO, KUNIO;MAKAMURA, JUNICHI |
分类号 |
G02B27/28;G02F1/13357;H04N9/31;(IPC1-7):H04N9/31 |
主分类号 |
G02B27/28 |
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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