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    • 45. 发明申请
    • Projection-type image display apparatus
    • 投影式图像显示装置
    • US20080012998A1
    • 2008-01-17
    • US11819528
    • 2007-06-28
    • Kazuhiro Arai
    • Kazuhiro Arai
    • H04N3/14
    • H04N9/3167H04N9/3102H04N9/3152
    • A projection-type image display apparatus including: a light source unit; an optical modulator including an incident surface and an output surface both being perpendicular to an optical axis of a light beam emitted from the light source, and configured to modulate a light beam emitted from the light source; a first polarizer provided to a surface of the optical modulator; and a second polarizer provided to another surface of the optical modulator. In the projection-type image display apparatus, the polarization direction of a light beam allowed to pass through the first polarizer and the polarization direction of a light beam allowed to pass through the second polarizer are substantially orthogonal to each other, and the light source unit emits a cross shaped light beam.
    • 一种投影型图像显示装置,包括:光源单元; 光调制器,其包括入射表面和输出表面,两者都垂直于从光源发射的光束的光轴,并且被配置为调制从光源发射的光束; 设置在所述光调制器的表面上的第一偏振器; 以及设置在所述光学调制器的另一个表面上的第二偏振器。 在投影型图像显示装置中,允许通过第一偏振器的光束的偏振方向和允许通过第二偏振器的光束的偏振方向基本上彼此正交,并且光源单元 发出十字形光束。