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    • 11. 发明授权
    • Color filtering device
    • 滤色装置
    • US07905601B2
    • 2011-03-15
    • US11858603
    • 2007-09-20
    • Mei-Ling ChenS-Wei ChenChao-Shun ChenHung-Cheng LungChun-Fa HsuCheng-Shun Liao
    • Mei-Ling ChenS-Wei ChenChao-Shun ChenHung-Cheng LungChun-Fa HsuCheng-Shun Liao
    • G03B21/14
    • G03B21/14G02B27/285G03B21/2073G03B21/208G03B33/08
    • A color filtering device including a color filter, a plurality of polarization beam splitting units, a plurality of reflecting units, and a plurality of wave plates is provided. The color filter has a plurality of filtering parts and a plurality of light shielding parts alternately arranged thereon. Each of the polarization beam splitting units is disposed in front of one of the filtering parts and makes an angle with a corresponding filtering part. Each of the reflecting units is disposed in front of one of the light shielding parts and makes an angle with a corresponding light shielding part. Each of the wave plates is substantially parallel to one of the filtering parts. Each of the polarization beam splitting units is disposed between a pair of a wave plate and a filtering part. The color filtering device has both color filtering function and polarization conversion function.
    • 提供了一种包括滤色器,多个偏振分束单元,多个反射单元和多个波片的滤色装置。 滤色器具有交替布置在其上的多个滤光部和多个遮光部。 每个偏振光束分离单元设置在一个滤光部分的前面,并与相应的滤光部分形成一个角度。 每个反射单元设置在一个遮光部分的前面并与相应的遮光部分成一定角度。 每个波片基本上平行于过滤部分之一。 每个偏振分束单元设置在一对波片和滤波部之间。 滤色装置具有滤色功能和偏光转换功能。