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21 条记录 (耗时 0.02 秒)

    Transmissively viewable reflection hologram
    1.
    发明授权
    Transmissively viewable reflection hologram 有权
    透视可见反射全息图

    公开(公告)号：US06366371B1

    公开(公告)日：2002-04-02

    申请号：US09535157

    申请日：2000-03-24

    申请人： Daijiro Kodama ,  Tsuyoshi Hotta

    发明人： Daijiro Kodama ,  Tsuyoshi Hotta

    IPC分类号： G03H122

    CPC分类号： G03H1/18 ,  G03H1/2249 ,  G03H2001/0415 ,  G03H2001/2234 ,  G03H2210/30

    摘要： A transmission hologram allowing an illuminating light source for holographic reconstruction to be placed behind the hologram, i.e. on the side opposite to the viewing side, and permitting reconstruction of an image that is bright and clear and has low chromatic dispersion, which is the feature of the reflection type volume hologram. A transmissively viewable reflection hologram has a semitransparent reflecting mirror or a semitransparent reflecting layer placed at either side of a reflection type volume hologram member. The semitransparent reflecting mirror or the semitransparent reflecting layer is integral with or separate from the reflection type volume hologram member.

    摘要翻译： 允许将全息重建的照明光源放置在全息图的后面，即在与观察侧相反的一侧的透射全息图，并且允许重建明亮且清晰且具有低色散的图像，这是 反射型体积全息图。 透过可见的反射全息图具有放置在反射型体积全息元件的任一侧的半透射反射镜或半透明反射层。 半透射反射镜或半透射反射层与反射型体积全息元件成一体或分开。

    Liquid crystal display apparatus and liquid crystal projection display apparatus which employ hologram color filter
    8.
    发明授权
    Liquid crystal display apparatus and liquid crystal projection display apparatus which employ hologram color filter 失效

    公开(公告)号：US5737040A

    公开(公告)日：1998-04-07

    申请号：US500757

    申请日：1995-07-11

    申请人： Nobuhiko Ichikawa ,  Tsuyoshi Hotta

    发明人： Nobuhiko Ichikawa ,  Tsuyoshi Hotta

    IPC分类号： G02F1/13357 ,  G02F1/1335 ,  G02B5/32

    CPC分类号： G02F1/133621

    摘要： A liquid crystal display apparatus and liquid crystal projection display apparatus, which employ a hologram color filter, and which are designed so that the illuminating light utilization efficiency is improved to a considerable extent, and that a color image can be faithfully displayed with excellent color reproducibility without uneven color or other similar problem. A color liquid crystal display apparatus (11) has a hologram (5), which diffractively disperses incident light so as to emanate light rays in different wavelength regions at a predetermined spatial period, as a color filter, and a liquid crystal display device (6). The display apparatus (11) is illuminated by white parallel back light (3) from an illuminator (14). A displayed image which is modulated in the color liquid crystal display apparatus (11) is passed through a field lens, which is disposed in the vicinity of the display apparatus (11), and formed as an enlarged image on a screen (19) for display through a projection lens (18). A short-wavelength cut-off filter whose transmittance for a wavelength not longer than 430 nm is not higher than 5% is disposed at a position in an optical path extending from a lamp (15) to the screen (19), thereby preventing crosstalk of colors which might otherwise occur when light which should be incident on a pixel assigned to display blue undesirably enters a pixel which is adjacent to the pixel for blue, and thus making it possible to display a faithful color image.

    REFLECTION TYPE DIFFUSE HOLOGRAM, HOLOGRAM FOR REFLECTION HOLOGRAM COLOR FILTERS, ETC, AND REFLECTION TYPE DISPLAY DEVICE USING SUCH HOLOGRAMS
    9.
    发明申请
    REFLECTION TYPE DIFFUSE HOLOGRAM, HOLOGRAM FOR REFLECTION HOLOGRAM COLOR FILTERS, ETC, AND REFLECTION TYPE DISPLAY DEVICE USING SUCH HOLOGRAMS 审中-公开
    反射型DIFFUSE HOLOGRAM，用于反射HOLOGRAM彩色滤光片的HOLOGRAM，ETC以及使用这种HOLOGRAMS的反射型显示器件

    公开(公告)号：US20070195391A1

    公开(公告)日：2007-08-23

    申请号：US11694159

    申请日：2007-03-30

    申请人： Shingo Nishikawa ,  Kenji Ueda ,  Toshikazu Segawa ,  Tsuyoshi Hotta ,  Yuko Kuwabara ,  Masachika Watanabe

    发明人： Shingo Nishikawa ,  Kenji Ueda ,  Toshikazu Segawa ,  Tsuyoshi Hotta ,  Yuko Kuwabara ,  Masachika Watanabe

    IPC分类号： G02B5/32

    CPC分类号： G02B5/0252 ,  G02B5/203 ,  G02B5/32 ,  G02F1/133553 ,  G02F2203/03 ,  G03H1/0248 ,  G03H1/18 ,  G03H1/182 ,  G03H1/202 ,  G03H1/2202 ,  G03H1/24 ,  G03H1/28 ,  G03H1/30 ,  G03H2001/0415 ,  G03H2001/0417 ,  G03H2001/186 ,  G03H2001/187 ,  G03H2001/2263 ,  G03H2001/263 ,  G03H2210/20 ,  G03H2222/13 ,  G03H2223/12 ,  G03H2223/14 ,  G03H2250/44 ,  G03H2260/12 ,  G03H2270/24

    摘要： A method of fabricating a hologram having a pattern made up of pixels in which a photosensitive material for forming a hologram is stacked on either a reflection-type hologram or a transmission type hologram. According to one aspect of the invention, the photosensitive material is stacked on a reflection-type relief hologram and reconstructing illumination light of a given wavelength is struck on the reflection-type relief hologram through the photosensitive material, so that interference fringes produced by interference of the light diffracted from the reflection type relief hologram and the incident light are recorded in the photosensitive material. According to another aspect of the invention, the photosensitive material is stacked on a transmission-type hologram, and reconstructing illumination light of a given wavelength is struck on a side of the transmission type hologram that is not opposite to the volume hologram photosensitive material, so that interference fringes produced by interference of light diffracted from the transmission type hologram and reference light incident on the photosensitive material are recorded in the photosensitive material. According to a third aspect of the invention, the photosensitive material is stacked on a transmission type hologram, and reconstructing illumination light of a given wavelength is struck on a side of the transmission type hologram that is not opposite to the photosensitive material, so that interference fringes produced by interference of light diffracted from the transmission type hologram and zero-order transmitted light are recorded in the photosensitive material, and a reflecting layer is provided on a back side of the photosensitive material.

    摘要翻译： 一种制造具有由其中用于形成全息图的感光材料的像素组成的图案的全息图的方法堆叠在反射型全息图或透射型全息图上。 根据本发明的一个方面，感光材料层叠在反射型浮雕全息图上，并且通过感光材料重建给定波长的照明光被撞击在反射型浮雕全息图上，使得由干涉产生的干涉条纹 从反射型浮雕全息图和入射光衍射的光被记录在感光材料中。 根据本发明的另一方面，将感光材料堆叠在透射型全息图上，并且重建具有给定波长的照明光被撞击在与体积全息图感光材料不相反的透射型全息图的一侧上，因此 感光材料中记录了由透射型全息图衍射的光的干涉条纹和入射到感光材料上的参考光产生的干涉条纹。 根据本发明的第三方面，感光材料层叠在透射型全息图上，并且将重复的给定波长的照明光击中在与感光材料不相反的透射型全息图的一侧上，使得干涉 将由透射型全息图衍射的光的干涉产生的条纹和零级透射光记录在感光材料中，反射层设置在感光材料的背面。