发明授权
- 专利标题： Projection display apparatus using liquid crystal light bulb
- 专利标题（中）： 投影显示装置采用液晶灯泡
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申请号： US593229申请日： 1996-01-29
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公开(公告)号： US5938307A公开(公告)日： 1999-08-17
- 发明人: Tetsuya Hamada , Toshihiro Suzuki , Takeshi Gotoh , Keiji Hayashi
- 申请人： Tetsuya Hamada , Toshihiro Suzuki , Takeshi Gotoh , Keiji Hayashi
- 申请人地址： JPX Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JPX Kawasaki
- 优先权： JPX7-210683 19950818
- 主分类号： G02B5/04
- IPC分类号： G02B5/04 ; G02B27/00 ; G02B27/18 ; G02F1/13 ; G02F1/1335 ; G03B21/00 ; G03B21/20 ; G03B21/14
摘要：
A projection display apparatus includes a light source unit for emitting light, a modulation unit for spatially modulating the light from the light source unit, and a projection lens for projecting light spatially modulated by the modulation unit on a screen so that a picture corresponding to spatial modulation in the modulation unit is formed on the screen. A deflection unit is located between the light source and the modulation unit and deflecting beams are included in the light from the light source unit toward an optical axis to prevent the beams from traveling out of the modulation unit.