发明名称 Projection apparatus
摘要 In a projection apparatus, an optical integrator is illuminated with light from a light source, one or more image display elements is irradiated with a plurality of beams from the integrator, and image light from the image display element or elements is projected by a projection optical system. The illuminating range of some of the plurality of beams is made smaller than the illuminating range of the other beams.
申请公布号 US6637892(B1) 申请公布日期 2003.10.28
申请号 US20000696857 申请日期 2000.10.26
申请人 CANON KABUSHIKI KAISHA 发明人 OKUYAMA ATSUSHI;KODAMA HIROYUKI
分类号 G03B33/12;G02B27/09;G02F1/13;G02F1/1335;G03B21/00;H04N9/31;(IPC1-7):G03B21/14;G03B21/20;G02F1/133 主分类号 G03B33/12
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