DIFFRACTIVE DEVICE
    1.
    发明申请
    DIFFRACTIVE DEVICE 审中-公开
    差分器件

    公开(公告)号:WO2013078503A1

    公开(公告)日:2013-06-06

    申请号:PCT/AU2012/001455

    申请日:2012-11-28

    Abstract: A method and apparatus for viewing or authenticating a diffractive device and a diffractive security device (1) are provided in which a first diffractive relief structure (200) is responsive to a first wavelength of visible monochromatic light, a second diffractive relief structure (200) is at least partially interlaced with the first diffractive relief structure (100) and responsive to a second wavelength of visible monochromatic light, and a third diffractive relief structure (400) is at least partially interlaced with the first and second diffractive relief structures (100, 200) and responsive to a third wavelength of visible monochromatic light. Under illumination by the first, second and third wavelengths of monochromatic light, the first diffractive relief structure (200) produces a first partial image of a first colour in a reconstruction plane, the second diffractive relief structure (300) produces a second partial image of a second colour in the reconstruction plane and the third diffractive relief structure (400) produces a third partial image of a third colour in the reconstruction plane, and the first, second and third partial images at least partially overlap in the reconstruction plane to form a multicoloured image. The diffractive security device may be used in a security document and the device may be authenticated by comparing the multicoloured image to a reference image.

    Abstract translation: 提供了一种用于观察或认证衍射装置和衍射安全装置(1)的方法和装置,其中第一衍射浮雕结构(200)响应于可见光单色光的第一波长,第二衍射浮雕结构(200) 至少部分地与第一衍射浮雕结构(100)交织并响应于可见单色光的第二波长,并且第三衍射浮雕结构(400)至少部分地与第一和第二衍射浮雕结构(100, 200)并响应于可见光单色光的第三波长。 在第一,第二和第三波长的单色光的照明下,第一衍射浮雕结构(200)在重建平面中产生第一颜色的第一部分图像,第二衍射浮雕结构(300)产生第二部分图像 重构平面中的第二颜色和第三衍射浮雕结构(400)在重建平面中产生第三颜色的第三部分图像,并且第一,第二和第三部分图像在重建平面中至少部分重叠以形成 多彩图像 可以在安全文档中使用衍射安全设备,并且可以通过将多色图像与参考图像进行比较来认证设备。

    POLARISING LIQUID CRYSTAL DEVICE
    2.
    发明申请
    POLARISING LIQUID CRYSTAL DEVICE 审中-公开
    极化液晶装置

    公开(公告)号:WO2011017749A1

    公开(公告)日:2011-02-17

    申请号:PCT/AU2010/001017

    申请日:2010-08-11

    Abstract: A method of forming a polarising liquid crystal device, including the step of: embossing at least one relief structure in a radiation curable liquid crystal material, whereby the embossing step also aligns the liquid crystal material with a predetermined polarisation pattern. The method also includes curing the embossed liquid crystal material, the curing and embossing steps being carried out substantially simultaneously. Also described is a polarising liquid crystal device including at least one relief structure in an embossed area or areas of a radiation curable liquid crystal device. The relief structure may include a diffractive structure. The liquid crystal material may be aligned with a predetermined polarisation pattern in the embossed area or areas, the predetermined polarisation pattern including two or more areas having different polarisations.

    Abstract translation: 一种形成偏振液晶装置的方法,包括以下步骤:对可辐射固化液晶材料中的至少一个浮雕结构进行压印,由此压花步骤还使液晶材料与预定的偏振图案对准。 该方法还包括固化压花液晶材料,固化和压印步骤基本上同时进行。 还描述了一种偏振液晶装置,其包括压花区域中的至少一个浮雕结构或可辐射固化液晶装置的区域。 浮雕结构可以包括衍射结构。 液晶材料可以在压纹区域或区域中与预定的偏振图案对齐,预定的偏振图案包括具有不同极化的两个或多个区域。

    SECURITY ELEMENT
    3.
    发明申请
    SECURITY ELEMENT 审中-公开
    安全元素

    公开(公告)号:WO2012126048A1

    公开(公告)日:2012-09-27

    申请号:PCT/AU2012/000282

    申请日:2012-03-20

    CPC classification number: B42D25/391 B42D15/00 B42D25/00 G02B5/3058

    Abstract: A polarising security element for polarising light of a predetermined wavelength is provided which includes a first dielectric material (30) having a refractive index nb, and at least one polarising region of mutually parallel segments (34) of a second material having a refractive index np which is different to nb, the second material being a dielectric or conducting material. The segments (34) of the second material are in contact with the first material (30) and the segments (34) have a width and/or an average spacing which is less than a predetermined range of wavelengths. A method of manufacturing such a security element is also provided in which a relief structure is embossed in the layer of the first dielectric material (30), the relief structure including a plurality of mutually parallel peaks and troughs (32,33), and the second layer of dielectric or conducting material is applied on the relief structure, preferably by printing, to form the at least one polarising region of mutually parallel segments (34).

    Abstract translation: 提供了一种用于偏振预定波长的光的偏振安全元件,其包括具有折射率nb的第一介电材料(30)和具有折射率np的第二材料的相互平行的段(34)的至少一个偏振区域 其不同于nb,第二材料是电介质或导电材料。 第二材料的段(34)与第一材料(30)接触,并且段(34)具有小于预定波长范围的宽度和/或平均间隔。 还提供了一种制造这种安全元件的方法,其中浮雕结构在第一介电材料(30)的层中压花,该浮雕结构包括多个相互平行的峰谷(32,33),并且 优选通过印刷将第二层电介质或导电材料施加在浮雕结构上,以形成相互平行的段(34)的至少一个偏振区域。

    REGISTRATION METHOD AND APPARATUS FOR EMBOSSED AND PRINTED FEATURES
    4.
    发明申请
    REGISTRATION METHOD AND APPARATUS FOR EMBOSSED AND PRINTED FEATURES 审中-公开
    注册方法和装置打印和打印功能

    公开(公告)号:WO2010042999A1

    公开(公告)日:2010-04-22

    申请号:PCT/AU2009/001369

    申请日:2009-10-16

    CPC classification number: B41M3/14 B41M2205/26 G07D7/00 G07D7/003

    Abstract: A method of registration for an embossed security feature on a security document, including steps of providing a substrate, applying an embossable ink to an area (120) of the substrate at a first printing station (106), and embossing at least part of said area (120) of the embossable ink with embossing means to form the embossed security feature (123). The method further includes printing a registration region (121) of embossable ink on the substrate at the first printing station (106), embossing at least part of said registration region to form a detectable registration key (124), detecting the position of the registration key (124), comparing the position of the registration key with at least one registration mark (122; 128; 130), and adjusting the position of the printing means relative to the embossing means in response to said comparison.

    Abstract translation: 一种用于在安全文件上的压印安全特征的配准方法,包括提供基底,在第一印刷站(106)上将可压印墨施加到基底的区域(120)的步骤,以及压印所述 具有压印装置的可压花墨水的区域(120)以形成压纹安全特征(123)。 该方法还包括在第一印刷站(106)的基板上印刷可压纹油墨的注册区域(121),压印所述注册区域的至少一部分以形成可检测的注册密钥(124),检测注册的位置 键(124),将注册密钥的位置与至少一个注册标记(122; 128; 130)进行比较,并且响应于所述比较来调整打印装置相对于压印装置的位置。

    SECURITY DEVICE
    5.
    发明申请
    SECURITY DEVICE 审中-公开
    安全装置

    公开(公告)号:WO2013056299A1

    公开(公告)日:2013-04-25

    申请号:PCT/AU2012/001255

    申请日:2012-10-17

    Abstract: An optical security device (10; 700) is provided which includes a transparent or translucent substrate (15; 705), at least one first array of repeating elements (20; 720) in or on a first side (16; 706) of the substrate (15; 705), at least one second array of repeating elements (30; 730) on a second side of the substrate. The second array of repeating elements (20; 720) is substantially in register with the first array of elements (30; 730), whereby a first image (130; 725) is visible when viewing the device from the first side, and a second image (200; 735) is visible when viewing the device from the second side. The brightness or colour levels of repeating image elements (30; 720, 730) on at least one side of the substrate may be modulated region-wise to produce a greyscale or coloured image. In one embodiment, the first array of repeating elements in or on a first side of the substrate is an array of focussing elements (20), and the second array of repeating elements in or on the second side of the substrate is an array of image elements (30) having substantially identical shape to each other, such that, when viewing the device from the first side, a magnified image including at least one magnified version of the image element shape is visible, and when viewing the device from the second side, the greyscale or coloured image is visible. In another embodiment, the repeating elements of both the first and second arrays are partially or fully opaque image elements (720, 730) which respectively form the first and second images (725;735).

    Abstract translation: 提供了一种光学安全装置(10; 700),其包括透明或半透明衬底(15; 705),至少一个重复元件的第一阵列(20; 720),位于所述第一侧 衬底(15; 705),在衬底的第二侧上的重复元件(30; 730)的至少一个第二阵列。 重复元件(20; 720)的第二阵列基本上与元件(30; 730)的第一阵列对准,由此当从第一侧观察装置时第一图像(130; 725)是可见的, 从第二侧查看设备时,图像(200; 735)是可见的。 在衬底的至少一侧上的重复图像元素(30; 720,730)的亮度或颜色水平可以被区域调制以产生灰度或彩色图像。 在一个实施例中,衬底的第一侧中或其上的第一重复元件阵列是聚焦元件阵列(20),并且在衬底的第二面中或其上的第二阵列的重复元件是图像阵列 元件(30)具有彼此基本相同的形状,使得当从第一侧观看装置时,包括图像元素形状的至少一个放大版本的放大图像是可见的,并且当从第二侧观察装置时 ,灰度或彩色图像是可见的。 在另一个实施例中,第一和第二阵列的重复元件是分别形成第一和第二图像(725; 735)的部分或完全不透明的图像元素(720,730)。

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