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    • 2. 发明申请
    • SECURITY DEVICES
    • 安全设备
    • WO2014006416A3
    • 2014-03-06
    • PCT/GB2013051784
    • 2013-07-05
    • RUE DE INT LTD
    • SMITH ALICEWHITEMAN ROBERTLISTER ADAM
    • B44F1/10B42D15/00
    • B42D25/20B42D25/00B42D25/29B42D25/342B42D25/351B42D25/355B42D2033/18B42D2035/14B42D2035/16B42D2035/26B42D2035/36G02B5/124
    • A security device is provided comprising a first pattern of elements (P1) and a second, overlapping, pattern of elements ( P2) spaced by a transparent layer (1), the first and second patterns (P1, P2) in combination obstructing the passage of light transmitted to a viewer through the device to a varying degree depending on the viewing position. The first and second patterns of elements (P1, P2) are configured such that a first region of the device exhibits a maximum change in the degree of obstruction when the device is tilted relative to the viewer about a first tilt axis, and a second region of the device exhibits a maximum change in the degree of obstruction when the device is tilted relative to the viewer about a second tilt axis which is not parallel to the first tilt axis.
    • 提供了一种安全装置,其包括由透明层(1)间隔开的元件(P1)的第一图案和第二重叠图案的元件(P2),第一和第二图案(P1,P2)组合阻碍通道 根据观察位置不同程度地透过装置传播到观看者的光。 元件(P1,P2)的第一和第二图案被构造成使得当装置相对于观看者围绕第一倾斜轴线倾斜时,装置的第一区域呈现阻塞程度的最大变化,并且第二区域 当装置相对于观察者围绕不平行于第一倾斜轴线的第二倾斜轴线倾斜时,该装置呈现阻塞程度的最大变化。