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    Printed indicator compositions
    3.
    发明授权
    Printed indicator compositions 有权
    印刷指示剂组合物

    公开(公告)号：US08336481B2

    公开(公告)日：2012-12-25

    申请号：US12454174

    申请日：2009-05-13

    申请人： Timothy D. Klots ,  David D. Schatz ,  Marc Schroeder ,  Jürgen Kaczun

    发明人： Timothy D. Klots ,  David D. Schatz ,  Marc Schroeder ,  Jürgen Kaczun

    IPC分类号： G01D21/00

    CPC分类号： B41M5/124 ,  B41M3/14 ,  B41M5/282 ,  B41M5/34 ,  B42D2033/12 ,  B42D2035/02 ,  B42D2035/34 ,  C09D11/50 ,  G01N21/78 ,  G07D7/1205 ,  G07D7/2041

    摘要： A method of revealing exposure of a substrate to an environmental stimulus includes exposing the substrate to the environmental stimulus, where the substrate includes at least one indicia, where each of the at least one indicia includes a plurality of chromatically selective scattering particles having a particle size distribution as measured by (weight average diameter)/(number average diameter) of less than or equal to about 1.1, and a colorant; and the at least one indicia exhibits a change in color in response to the environmental stimulus.

    摘要翻译： 揭示基材暴露于环境刺激的方法包括将基底暴露于环境刺激，其中基底包括至少一个标记，其中至少一个标记中的每一个包括多个具有粒径的色度选择性散射粒子 通过（重量平均直径）/（数均直径）测量的分布小于或等于约1.1，和着色剂; 并且所述至少一个标记响应于所述环境刺激而呈现出颜色变化。

    SECURITY DOCUMENT CONTAINING AN AUTHENTICATION DEVICE
    5.
    发明申请
    SECURITY DOCUMENT CONTAINING AN AUTHENTICATION DEVICE 有权
    包含认证设备的安全文件

    公开(公告)号：US20100084850A1

    公开(公告)日：2010-04-08

    申请号：US12444168

    申请日：2007-10-04

    申请人： Wayne Kevin Jackson ,  Francois Bauer

    发明人： Wayne Kevin Jackson ,  Francois Bauer

    IPC分类号： B42D15/00 ,  H05K3/10

    CPC分类号： B42D25/415 ,  B42D25/29 ,  B42D25/364 ,  B42D25/455 ,  B42D2033/12 ,  B42D2033/26 ,  B42D2033/46 ,  G07D7/181 ,  Y10T29/49155

    摘要： A flexible security document is provided which contains an authentication device including: a) source of electrical potential (5), the source including a piezoelectric polymeric material including at least one terpolymer of vinylidene fluoride (VDF), trifluoroethylene (TrFE) and a halogenated ethylene based monomer containing at least one non-fluorine halogen atom, the source of electrical potential being activated by mechanical deformation; b) reporter element (3) including a material capable of switching electrically between a first state and a second state, the difference between the first state and the second state being able to be perceived by an unaided human; and c) conducting elements (8) electrically connecting the source of electrical potential and the reporter element to produce an electric circuit. The reporter element (3) may take a number of different forms, such as a light emitting device which lights up or undergoes colour change when activated by the source of electrical potential to provide an indication of authenticity. In a particularly preferred embodiment, the flexible security document is a banknote and the source of electrical potential is applied by printing.

    摘要翻译： 提供了一种灵活的安全文件，其包含认证装置，其包括：a）电位源（5），所述源包括压电聚合物材料，所述压电聚合物材料包括至少一种偏二氟乙烯（VDF），三氟乙烯（TrFE）和卤化乙烯 含有至少一个非氟卤素原子的单体单体，电势源通过机械变形而被活化; b）包含能够在第一状态和第二状态之间电气切换的材料的报告元件（3），第一状态与第二状态之间的差异能够被无人看管; 和c）将电位源与报告元件电连接以产生电路的导电元件（8）。 报告元件（3）可以采用多种不同的形式，例如在由电位源激活时亮起或发生颜色变化的发光器件，以提供真实性的指示。 在特别优选的实施例中，柔性安全文件是钞票，通过印刷施加电势源。

    Security document containing an authentication device
    7.
    发明授权
    Security document containing an authentication device 有权

    公开(公告)号：US10052904B2

    公开(公告)日：2018-08-21

    申请号：US12444168

    申请日：2007-10-04

    申请人： Wayne Kevin Jackson ,  Francois Bauer

    发明人： Wayne Kevin Jackson ,  Francois Bauer

    IPC分类号： B42D15/00 ,  B42D15/10 ,  G09C3/00 ,  B42D25/415 ,  B42D25/364 ,  B42D25/455 ,  B42D25/29 ,  G07D7/181

    CPC分类号： B42D25/415 ,  B42D25/29 ,  B42D25/364 ,  B42D25/455 ,  B42D2033/12 ,  B42D2033/26 ,  B42D2033/46 ,  G07D7/181 ,  Y10T29/49155

    摘要： A flexible security document is provided which contains an authentication device including: a) source of electrical potential (5), the source including a piezoelectric polymeric material including at least one terpolymer of vinylidene fluoride (VDF), trifluoroethylene (TrFE) and a halogenated ethylene based monomer containing at least one non-fluorine halogen atom, the source of electrical potential being activated by mechanical deformation; b) reporter element (3) including a material capable of switching electrically between a first state and a second state, the difference between the first state and the second state being able to be perceived by an unaided human; and c) conducting elements (8) electrically connecting the source of electrical potential and the reporter element to produce an electric circuit. The reporter element (3) may take a number of different forms, such as a light emitting device which lights up or undergoes color change when activated by the source of electrical potential to provide an indication of authenticity. In a particularly preferred embodiment, the flexible security document is a banknote and the source of electrical potential is applied by printing.

    Authentication device for security documents
    8.
    发明授权
    Authentication device for security documents 有权
    用于安全文件的认证设备

    公开(公告)号：US09082054B2

    公开(公告)日：2015-07-14

    申请号：US14345781

    申请日：2012-09-19

    申请人： Bank of Canada

    发明人： Charles Douglas MacPherson ,  Theodoros Garanzotis

    IPC分类号： G06Q40/00 ,  G07D11/00 ,  G07F19/00 ,  G06K19/06 ,  H02N2/18 ,  B42D25/29

    CPC分类号： B42D25/21 ,  B42D25/29 ,  B42D2033/12 ,  B42D2035/20 ,  G02F1/01 ,  G06K19/06046 ,  H02N2/18

    摘要： An optical based authentication device that is attachable to a security document having a substrate. The authentication device includes: a piezoelectric material layer for generating an electric field in response to mechanical stress; and an optically responsive layer directly attached to the piezoelectric material layer, the attached layers being absent a direct electrical connection, the optically responsive layer being operable between a first state and a second state having different ocular perceptions. The optically responsive layer changes from the first state to the second state in response the electric field generated by the piezoelectric material layer.

    摘要翻译： 一种光学认证装置，其可附接到具有基板的安全文件。 认证装置包括：用于响应于机械应力产生电场的压电材料层; 以及直接连接到所述压电材料层的光学响应层，所述附接层不存在直接电连接，所述光学响应层可在具有不同眼睛感知的第一状态和第二状态之间操作。 响应于由压电材料层产生的电场，光响应层从第一状态变为第二状态。