发明名称 Image projection apparatus
摘要 Disclosed is an image projection apparatus including a display device which has a plurality of pixel apertures and displays image information, an illumination optical unit for illuminating the display device, a projection optical unit for projecting the image information displayed on the display device on a predetermined surface, and a blower for blowing air to the atmosphere in the display device. Dust affecting a projected image is prevented from attaching near the display device.
申请公布号 US6364489(B1) 申请公布日期 2002.04.02
申请号 US19990359246 申请日期 1999.07.22
申请人 CANON KABUSHIKI KAISHA 发明人 EGUCHI MASAHARU
分类号 G03B21/14;G03B21/00;(IPC1-7):G03B21/00 主分类号 G03B21/14
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