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    • 121. 发明授权
    • Display apparatus
    • 显示装置
    • US06839181B1
    • 2005-01-04
    • US10603286
    • 2003-06-25
    • Joshua M. CobbAndrew F. KurtzXiang-Dong Mi
    • Joshua M. CobbAndrew F. KurtzXiang-Dong Mi
    • G02F1/1335G02B5/30G02B27/28G02F1/13357G03B21/00H04N9/31G02B27/10G02B27/14
    • G02B5/3058G02B13/22G02B27/283G03B21/2073G03B21/208G03B33/12H04N9/315
    • A display apparatus (10) comprises a light source (20) for forming a beam of light. Illumination optics shapes and directs the beam of light. A splitter for splits the beam of light into at least three color beams of light. A modulation optical system (120) for each of the three color beams of light comprises a pre-polarizer (160), a wire grid beamsplitter (170), a reflective spatial light modulator (30), and a polarization analyzer (165). An imaging relay lens (130) in each color provides an intermediate image of the reflective spatial light modulator from the modulated light for that color. A dichroic combiner (26) recombines the modulated light for each given color, such that the multiple color beams form the respective intermediate images along a common optical axis to form a combined intermediate image. A projection lens (32) images the combined intermediate image to a display screen. An imager field lens (140) provides nominally telecentric light to the spatial light modulators.
    • 显示装置(10)包括用于形成光束的光源(20)。 照明光学器件形成并引导光束。 用于将光束分解成至少三个颜色的光束的分离器。 用于三个彩色光束中的每一个的调制光学系统(120)包括预偏振器(160),线栅分束器(170),反射空间光调制器(30)和偏振分析器(165)。 每种颜色的成像中继透镜(130)从用于该颜色的调制光提供反射空间光调制器的中间图像。 二向色组合器(26)对于每个给定颜色重新组合调制光,使得多个颜色光束沿着共同的光轴形成相应的中间图像以形成组合的中间图像。 投影透镜(32)将组合的中间图像成像到显示屏幕。 成像器场透镜(140)向空间光调制器提供标称的远心光。