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    SYNTHETIC COLOUR HOLOGRAM
    3.
    发明公开
    SYNTHETIC COLOUR HOLOGRAM 审中-公开
    合成彩色全息图

    公开(公告)号：EP1509817A1

    公开(公告)日：2005-03-02

    申请号：EP03738230.6

    申请日：2003-05-23

    申请人： HERIOT-WATT UNIVERSITY

    发明人： TAGHIZADEH, M. R.,c/o Heriot-Watt University

    IPC分类号： G03H1/26 ,  G03H1/24 ,  G03H1/04

    CPC分类号： G03H1/041 ,  G03H1/24 ,  G03H1/26

    摘要： A surface relief hologram that comprises two or more patterns, each pattern being sensitive to different radiation wavelengths. The hologram is made by defining relief features that are sensitive to different wavelengths, and in particular to one wavelength that is visible to the unaided human eye and to one wavelength that is invisible to the unaided human eye. These relief features of different sensitivities are interspersed over the surface of the substrate in which the hologram is defined. By providing two patterns of different sensitivities, when the hologram is used in a security device, security is improved. Despite this improved security, the hologram can be mass manufactured using known techniques.

    Holographic printer
    4.
    发明公开
    Holographic printer 有权
    多普勒全息摄影师德鲁克

    公开(公告)号：EP1385066A1

    公开(公告)日：2004-01-28

    申请号：EP03024690.4

    申请日：2000-12-08

    申请人： Geola Technologies Ltd.

    发明人： Brotherton-Ratcliffe, David ,  Vergnes, Florian Michel Robert ,  Rodin, Alexey ,  Grichine, Mikhail

    IPC分类号： G03H1/26 ,  G03H1/24

    CPC分类号： G03H1/24 ,  G03H1/0891 ,  G03H1/16 ,  G03H1/268 ,  G03H2001/0216 ,  G03H2001/0413 ,  G03H2001/0415 ,  G03H2001/0428 ,  G03H2001/0473 ,  G03H2001/2263 ,  G03H2001/2265 ,  G03H2001/2268 ,  G03H2001/2273 ,  G03H2001/2685 ,  G03H2001/269 ,  G03H2001/2695 ,  G03H2001/306 ,  G03H2210/22 ,  G03H2210/40 ,  G03H2210/42 ,  G03H2210/441 ,  G03H2210/454 ,  G03H2222/22 ,  G03H2222/33 ,  G03H2222/50 ,  G03H2223/19

    摘要： A single method and apparatus for producing many of the most common types of hologram from digital data is disclosed. In one embodiment the data are generated entirely by a computer as a 3-D (animated) model. In another embodiment the data are generated from multiple 2-D camera images taken of a real 3-D (moving) object or scene from a plurality of different camera positions. The data are digitally processed and displayed on a small high resolution spatial light modulator (SLM). A compact low energy pulsed laser, which avoids the usual vibration problems encountered at high rates of production and the installation in normal working environments, is used to record composite holograms on an holographic emulsion using a special optical design. The present invention permits the creation of restricted or full parallax master transmission or reflection type composite holograms, known as H1 holograms, that can be copied using traditional methods to produce full or single colour rainbow white-light transmission holograms, achromatic white-light transmission holograms or single or full-colour white-light reflection holograms. Alternatively the same invention and apparatus permits the direct writing of full or single colour rainbow white-light transmission composite holograms, achromatic white-light transmission composite holograms or single or full-colour white-light reflection composite holograms without the need to pass through the intermediate stage of the H 1 transmission hologram. The present invention allows the creation of a compact rugged machine that is capable of producing holograms covering a large size range. In addition the invention produces holograms that can be tiled together to form composite holograms much larger than the component panels.

    摘要翻译： 公开了用于从数字数据产生许多最常见类型的全息图的单一方法和装置。 在一个实施例中，数据由计算机完全由3-D（动画）模型生成。 在另一实施例中，数据是从多个不同摄像机位置的实际3-D（移动）对象或场景拍摄的多个2-D摄像机图像生成的。 数据被数字处理并显示在小型高分辨率空间光调制器（SLM）上。 使用紧凑型低能量脉冲激光器，其避免了在高生产率和正常工作环境中安装时遇到的常见振动问题，以使用特殊光学设计在全息乳状液上记录复合全息图。 本发明允许创建被称为H1全息图的限制或全视差主传输或反射型复合全息图，其可以使用传统方法复制以产生全色或单色彩虹白光透射全息图，无色白光透射全息图 或单色或全色白光反射全息图。 或者，相同的发明和装置允许直接写入全彩色或单色彩虹白光透射复合全息图，无彩色白光透射复合全息图或单色或全色白光反射复合全息图，而不需要通过中间 H 1透射全息图的阶段。 本发明允许创建能够产生覆盖大尺寸范围的全息图的紧凑型坚固机器。 此外，本发明产生可以平铺在一起以形成比组件面板大得多的复合全息图的全息图。