发明授权
- 专利标题： Projection type image display apparatus
- 专利标题（中）： 投影型图像显示装置
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申请号： US11384645申请日： 2006-03-20
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公开(公告)号： US07744226B2公开(公告)日： 2010-06-29
- 发明人: Tomokazu Masubuchi , Atsushi Matsuura , Satoshi Onishi , Kohei Watasru , Takashi Ohta
- 申请人： Tomokazu Masubuchi , Atsushi Matsuura , Satoshi Onishi , Kohei Watasru , Takashi Ohta
- 申请人地址： JP Hachioji-shi
- 专利权人： Konica Minolta Opto, Inc.
- 当前专利权人： Konica Minolta Opto, Inc.
- 当前专利权人地址： JP Hachioji-shi
- 代理机构： Sidley Austin LLP
- 优先权： JP2005-104392 20050331
- 主分类号： G03B21/28
- IPC分类号： G03B21/28 ; G03B21/14 ; G03B21/22 ; H04N5/74
摘要：
A projection type image display apparatus has: an illumination optical system generating illumination light; a projection optical system projecting an image light onto a screen; a digital micromirror device (DMD) modulating the illumination light so as to form the image light; and a reflection mirror arranged in a position opposite to an optical path of the illumination light entering the DMD. The reflection mirror reflects an off-light reflected by the DMD in an “OFF” state in a direction separated from a projection light reflected by the DMD in an “ON” state.
公开/授权文献
- US20060221306A1 Projection type image display apparatus 公开/授权日：2006-10-05
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