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    OPTICALLY VARIABLE ENTITY AUTHENTICATING DEVICE AND METHOD
    12.
    发明申请
    OPTICALLY VARIABLE ENTITY AUTHENTICATING DEVICE AND METHOD 有权
    光学可变实体认证设备和方法

    公开(公告)号：US20140233033A1

    公开(公告)日：2014-08-21

    申请号：US14347141

    申请日：2012-09-26

    Applicant: SICPA HOLDING SA

    Inventor： Edgar Mueller ,  Pierre Degott ,  Claude-Alain Despland

    IPC: G01J3/46

    CPC classification number: G01J3/46 ,  G07D7/005 ,  G07D7/121 ,  G07D7/128 ,  G07D7/207

    Abstract: Disclosed is a device for the authentication of an optically variable entity exhibiting a color shift with changing viewing-angle, the device comprising a plate of light-refractive material, said plate having two surfaces and an array of light-refracting protrusions or recesses on at least one of said surfaces, and being disposed in said device such as to provide, aside each other, a direct view and a view through said plate onto at least parts of said optically variable entity, said view through said plate being an angularly deflected view, resulting from light refraction at said protrusions or recesses. Further disclosed is a method for authenticating an optically variable entity, as well as the use of a plate having two parallel surfaces and an array of positive or negative light-refracting protrusions or recesses on at least one of said surfaces for authenticating an optically variable entity.

    Abstract translation: 公开了一种用于认证具有改变视角的色移的光学可变实体的装置，该装置包括一个光折射材料板，所述板具有两个表面和一个在其上的光折射突起或凹槽阵列 至少一个所述表面，并且设置在所述装置中，以便通过所述板将所述板的直接视图和视图提供给所述光学可变实体的至少一部分，所述透视图通过所述板是角度偏转的视图 由所述突起或凹陷处的光折射产生。 还公开了一种用于认证光学可变实体的方法，以及使用具有两个平行表面的板和在至少一个所述表面上的正或负折射光的折射或凹陷的阵列，用于认证光学可变实体 。

    Machine readable security features
    15.
    发明授权
    Machine readable security features 有权

    公开(公告)号：US11891527B2

    公开(公告)日：2024-02-06

    申请号：US17055851

    申请日：2019-02-19

    Applicant: SICPA HOLDING SA

    Inventor： Marlyse Demartin Maeder ,  Claude-Alain Despland

    IPC: C09D11/10 ,  C09D11/101 ,  B41M3/14 ,  C09D11/033 ,  C09D11/037 ,  C09D11/322

    CPC classification number: C09D11/101 ,  B41M3/14 ,  B41M3/144 ,  C09D11/033 ,  C09D11/037 ,  C09D11/322

    Abstract: The present invention relates to the field of security inks suitable for printing machine readable security features on substrate, security documents or articles as well as machine readable security feature made from said security inks, and security documents comprising a machine readable security feature made from said security inks. In particular, the invention provides security inks comprising one or more IR absorbing materials selected from the group consisting of crystal water-free iron(II) orthophosphates of the general formula Fe3(PO4)2 and having a graftonite crystal structure, crystal water-free iron(II) metal orthophosphates, crystal water-free iron(II) metal phosphonates, crystal water-free iron(II) metal pyrophosphates, crystal water-free iron(II) metal metaphosphates of the general formula FeaMetb(POc)d, wherein said security ink is an oxidative drying security ink, a UV-Vis curable security ink, a UV-Vis curable security ink or a combination thereof.

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