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    • 22. 发明申请
    • OPTICALLY VARIABLE ENTITY AUTHENTICATING DEVICE AND METHOD
    • 光学可变实体认证设备和方法
    • WO2013045082A1
    • 2013-04-04
    • PCT/EP2012/004034
    • 2012-09-26
    • SICPA HOLDING SA
    • MÜLLER, EdgarDESPLAND, Claude-AlainDEGOTT, Pierre
    • G07D7/12G07D7/00G07D7/20
    • G01J3/46G07D7/005G07D7/121G07D7/128G07D7/207
    • 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.
    • 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,以便将所述板的直接视图和视图彼此提供到所述光学可变实体的至少一部分上,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光折射突起或凹陷的阵列,用于认证光学可变实体 。
    • 24. 发明申请
    • METHOD AND DEVICE FOR THE AUTHENTICATION OF DOCUMENTS AND GOODS
    • 用于文件和商品认证的方法和设备
    • WO2004097716A1
    • 2004-11-11
    • PCT/EP2004/003600
    • 2004-04-05
    • SICPA HOLDING S.A.VASIC, MilanMÜLLER, Edgar
    • VASIC, MilanMÜLLER, Edgar
    • G06K7/10
    • G06K7/10831G06K7/10881G06K7/1094G07D7/1205G07D7/121
    • The invention discloses a method and a device for the authentication of a document, a valued good or a packaging, carrying a marking (M) exhibiting a viewing-angle dependent light reflection spectrum. The authentication method is based on a measurement of the intensity of light reflected by the marking at least at two different viewing angles in response to a sequential wide-angle illumination with light of different spectral characteristics, and the comparison of the measured intensity values with corresponding reference values. The authentication device (1) has at least two light sources (4) of different spectral characteristics, a wide-angle illumination optics (3), and at least two photodetectors (5) collecting light reflected by said markings at least at two different viewing angles. It may further have a programmed "learning mode" for measuring and storing a set of reflected intensity values of a reference item, and a programmed "testing mode", for measuring a corresponding set of intensity values on an item to be authenticated and comparing them with the previously stored set of reference values, hereby deriving and indicating a test result.
    • 本发明公开了一种用于认证文件,价值物品或包装的方法和装置,其携带表现出与视角相关的光反射光谱的标记(M)。 该认证方法基于响应于具有不同光谱特性的光的顺序广角照明,至少在两个不同的视角处测量由标记反射的光的强度,并且将测量的强度值与相应的 参考值。 认证设备(1)具有至少两个不同光谱特性的光源(4),广角照明光学器件(3)和至少两个光电检测器(5),至少在两个不同的观察点收集由所述标记反射的光 角。 它还可以具有编程的“学习模式”,用于测量和存储参考项目的一组反射强度值,以及编程的“测试模式”,用于测量待认证的项目上的对应的一组强度值并将其进行比较 与先前存储的参考值集合,从而导出并指示测试结果。