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    • 10. 发明申请
    • LCD PROJECTING SYSTEM HAVING DICHROIC MIRRORS FOR POLARIZATION CONVERSION
    • 具有偏光镜的液晶投影系统,用于偏光转换
    • WO2005091645A1
    • 2005-09-29
    • PCT/IB2005/050793
    • 2005-03-03
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.BAKKER, Levinus, P.DE VAAN, Adrianus, J., S., M.
    • BAKKER, Levinus, P.DE VAAN, Adrianus, J., S., M.
    • H04N9/31
    • G02B27/149G02B27/1046G02B27/145G02B27/28H04N9/3105H04N9/315
    • This invention relates to a system (200) for projecting an image on a display comprising: a first dichroic means(212) receiving coloured light beams (204, 206, 208) and adapted to transmit the one (204) and to reflect the others (206, 208), a second dichroic means (220) receiving the other light beams (206, 208) and adapted to reflect a second (206) and to transmit a third (208) light beam. The system (200) further comprises a first, second and third polarizing means (216, 304, 222, 404, 226, 602) being adapted to transmit light polarized in a desired direction, and a reflective rotating means (210, 202) receiving light beams (204, 206, 208) polarized in an undesired direction reflected from at least one of the first, second and third polarizing means (216, 304, 222, 404, 226, 602), and which reflective rotating means (210, 202) is adapted to convert the light polarized in the undesired direction to converted light polarized in the desired direction and reflect the converted light back to the first, second and third polarizing means (216, 304, 222, 404, 226, 602).
    • 本发明涉及一种用于在显示器上投影图像的系统(200),包括:接收彩色光束(204,206,208)并适于传输一个(204)并反射其它物体的第一分色装置(212) (206,208),第二分色装置(220),其接收其它光束(206,208)并且适于反射第二(206)并传输第三(208)光束。 所述系统(200)还包括适于透射沿期望方向偏振的光的第一,第二和第三偏振装置(216,304,222,404,226,602)和反射旋转装置(210,202),其接收 在从第一,第二和第三偏振装置(216,304,222,404,226,602)中的至少一个反射的不期望方向上偏振的光束(204,206,208),以及反射旋转装置 202)适于将在不期望方向上偏振的光转换成在期望方向上偏振的转换光,并将转换的光反射回第一,第二和第三偏振装置(216,304,222,404,226,602)。