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    Hologram color filter, and its fabrication method
    2.
    发明公开
    Hologram color filter, and its fabrication method 失效
    Holographisches Farbfilter mit Ausrichtungsmarke und Ausrichtungsverfahren

    公开(公告)号：EP1367415A2

    公开(公告)日：2003-12-03

    申请号：EP03017661.4

    申请日：1996-07-08

    申请人： DAI NIPPON PRINTING CO., LTD.

    发明人： Ichikawa, Nobuhiko, Dai Nippon Printing Co., Ltd. ,  Hotta, Tsuyoshi, Dai Nippon Printing Co., Ltd. ,  Ueda, Kenji, Dai Nippon Printing Co., Ltd.

    IPC分类号： G02B5/32 ,  G02F1/1335 ,  G03F9/00

    CPC分类号： G02B5/203 ,  G02B5/32 ,  G02B7/003 ,  G02B27/32 ,  G02B27/62 ,  G02F1/133621 ,  G02F2001/133623 ,  G03H1/0248 ,  G03H1/202 ,  G03H1/26 ,  G03H2001/207 ,  G03H2001/2271 ,  G03H2001/2615 ,  G03H2223/19

    摘要： The present invention provides a hologram color filter having a drastically decreased dependence of diffraction efficiency on wavelength and well corrected for a color balance among the three colors R, G and B comprising an array of converging element holograms (5'), each of which enables white light incident at a given angle (θ) with respect to a normal line of a hologram recorded surface thereof to be spectroscopically separated by wavelength dispersion in a direction substantially along the hologram recorded surface, wherein the converging element holograms (5') have each a plurality of hologram pieces (51 and 52) superposed on each other or multi-recorded therein, which, with respect to the white light (3) incident at the given angle(θ), have substantially identical spatial wavelength distributions of wavelength dispersion and different peak wavelengths of diffraction efficiency.

    摘要翻译： 本发明提供了一种全息图彩色滤光片，其具有大大降低的衍射效率对波长的依赖性，并且对于包括会聚元件全息图（5'）的阵列的三种颜色R，G和B之间的色彩平衡良好地校正， 相对于其全息图记录表面的法线，以基本上沿着全息图记录表面的方向上的波长色散被光谱分离的给定角度（＆amp; thetas）入射的白光，其中会聚元件全息图（5'）具有 每个多个彼此重叠或多次记录的全息图片（51和52）相对于以给定角度（＆amp;θ）入射的白光（3）具有基本相同的波长空间波长分布 分散和不同峰值波长的衍射效率。