发明名称 |
Projection display apparatus, and information processing system and image recording/reproducing system using the same |
摘要 |
In a projection display apparatus, light from a light source is separated into a plurality of beams having different wavelength regions, a plurality of image display elements (123r, 123g, 123b) are inserted in the optical paths of the respective separated beams so as to be illuminated by the beams. A color combiner (XDP) is provided for combining the beams emerging from the plurality of image display elements. The beams combined by the color combiner are projected on a projection surface. A diffraction optical element (124) is inserted in at least one of a plurality of optical paths between the plurality of image display elements and the color combiner.
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申请公布号 |
US2001024267(A1) |
申请公布日期 |
2001.09.27 |
申请号 |
US20010783659 |
申请日期 |
2001.02.14 |
申请人 |
KOBAYASHI SHUICHI;NAKAI TAKEHIKO |
发明人 |
KOBAYASHI SHUICHI;NAKAI TAKEHIKO |
分类号 |
G02B5/18;G03B21/00;(IPC1-7):G03B21/00 |
主分类号 |
G02B5/18 |
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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