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    • 64. 发明公开
    • SICHERHEITSELEMENT
    • EP2318181A1
    • 2011-05-11
    • EP09777022.6
    • 2009-07-08
    • Giesecke & Devrient GmbH
    • HEIM, Manfred
    • B24D15/00B24D15/10
    • B42D25/45B42D25/00B42D25/29B42D25/351B42D25/387
    • The invention relates to a security element for securing data carriers having a three-layered thin-layer element (20) composed of a reflection layer (22), an absorber layer (26) and a dielectric spacer layer (24) arranged between the reflection layer and the absorber layer. According to the invention, the reflection layer (22), the absorber layer (26) and the dielectric spacer layer (24) are matched to one another such that the thin-layer element, when viewed from the absorber layer side (26) at all observation angles (28, 28’) and in the entire visible spectral range, has a very low reflectance and appears to be black.
    • 本发明涉及一种用于固定数据载体的安全元件,该数据载体具有由反射层(22),吸收层(26)和介电间隔层(24)组成的三层薄层元件(20) 层和吸收层。 根据本发明,反射层(22),吸收层(26)和介电间隔层(24)彼此匹配,使得当从吸收层侧(26)观察时,薄层元件在 所有观测角度(28,28')和整个可见光谱范围内,反射率都非常低,并且看起来是黑色的。