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    Dynamic appearance-changing optical devices (DACOD) printed in a shaped magnetic field including printable fresnel structures
    4.
    发明授权
    Dynamic appearance-changing optical devices (DACOD) printed in a shaped magnetic field including printable fresnel structures 有权
    动态外观改变光学器件（DACOD）印刷在包括可印刷的菲涅耳结构的成形磁场中

    公开(公告)号：US08343615B2

    公开(公告)日：2013-01-01

    申请号：US11278600

    申请日：2006-04-04

    申请人： Vladimir P. Raksha ,  Paul G. Coombs ,  Charles T. Markantes ,  Alberto Argoitia ,  Roger W. Phillips

    发明人： Vladimir P. Raksha ,  Paul G. Coombs ,  Charles T. Markantes ,  Alberto Argoitia ,  Roger W. Phillips

    IPC分类号： B32B5/16

    CPC分类号： B42D25/369 ,  B05D3/207 ,  B41M3/148 ,  B42D25/29 ,  B42D2033/16 ,  B42D2035/20 ,  G02B5/09 ,  G02B26/026 ,  G02B27/0025 ,  G09F3/0376 ,  Y10T428/24802 ,  Y10T428/25

    摘要： A printed image is disclosed wherein the image may be in the form of an array of magnetically aligned platelets or flakes that may by uniform in shape and size and wherein the flakes are arranged in a particularly manner to form optically illusive images useful as security devices, or useful in beam steering applications. In one embodiment of this invention printed array is disclosed a plurality of concentric rings of magnetically aligned platelets disposed upon a substrate in the form of a Fresnel structure, preferably a Fresnel reflector. Advantageously, since the magnetic field can be controlled with respect to strength and direction, one can easily design a field that will correct for spherical aberration that would otherwise be present in a typical Fresnel reflector. In other embodiments of the invention optically illusive images of funnels, domes and cones are printed.

    摘要翻译： 公开了一种印刷图像，其中图像可以是可以通过形状和尺寸均匀的磁性对准的血小板或薄片的阵列的形式，并且其中薄片以特别的方式布置以形成用作安全装置的光学虚幻图像， 或用于波束转向应用。 在本发明的一个实施例中，印刷阵列公开了多个磁性对准的血小板的同心环，其设置在菲涅耳结构形式的基板上，优选为菲涅耳反射器。 有利地，由于可以相对于强度和方向控制磁场，所以可以容易地设计出将校正否则将存在于典型的菲涅尔反射器中的球面像差的场。 在本发明的其它实施例中，打印漏斗，圆顶和圆锥的光学虚幻图像。

    Security image coated with a single coating having visually distinct regions
    7.
    发明授权
    Security image coated with a single coating having visually distinct regions 有权
    涂有单一涂层的安全图像具有视觉上不同的区域

    公开(公告)号：US08287989B2

    公开(公告)日：2012-10-16

    申请号：US11784972

    申请日：2007-04-10

    申请人： Vladimir P. Raksha ,  Roger W. Phillips ,  Charles T. Markantes ,  Paul G. Coombs

    发明人： Vladimir P. Raksha ,  Roger W. Phillips ,  Charles T. Markantes ,  Paul G. Coombs

    IPC分类号： B32B3/00

    CPC分类号： B42D25/405 ,  B42D25/00 ,  B42D25/369 ,  B42D2033/16 ,  B42D2033/20 ,  B42D2035/20 ,  C01P2004/80 ,  C09C1/0015 ,  C09C1/0081 ,  G07D7/04 ,  G07D7/128 ,  Y10T428/24802 ,  Y10T428/24893 ,  Y10T428/24909

    摘要： A security image is disclosed which is formed from flakes having a first color with flakes having a second different color mixed within a carrier uniformly. The flakes having the second color are magnetically orientable and the flakes having the first color are non-magnetic and do not align or orient in a magnetic field. By exposing at least a single coated region to a magnetic field that is substantially orthogonal to the substrate upon which the coating of flakes is coated, a visible region having the first color is provided as the magnetic flakes are upstanding and the non-magnetic flakes are lying flat upon the substrate. In another region where there is no field applied a visible region having third perceived color different from, however formed from the first color or the second color is seen.

    摘要翻译： 公开了一种安全图像，其由具有在载体内均匀混合的具有第二不同颜色的薄片的第一颜色的薄片形成。 具有第二颜色的薄片是可磁性取向的，具有第一颜色的薄片是非磁性的，并且不在磁场中对准或取向。 通过将至少一个涂覆区域暴露于基本上垂直于其上涂覆薄片涂层的基底的磁场，当磁片呈直立状态并且非磁性薄片为 平躺在基板上。 在没有施加场的另一区域中，可以看到具有与第一颜色或第二颜色不同的第三感知颜色的可见区域。