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专利名称：SECURITY ELEMENT HAVING A COLOR-SHIFTING THIN-FILM ELEMENT
发明人：SCHMITZ, Christian申请号：EP15787472.8申请日：20151028公开号：EP3212430A1公开日：20170906
摘要：The invention relates to a security element (12) for securing valuable objects,comprising a substrate (20) and a thin-film element (30) arranged on the substrate (20).The thin-film element has a reflection layer (32) arranged over the substrate, a dielectricspacing layer (34) arranged over the reflection layer (32), and an absorber layer (36)arranged over the dielectric spacing layer (34). According to the invention, the thin-filmelement (30) has two partial regions (22, 24) having different color-shifting effect and apartial region (26) without color-shifting effect, each of which partial regions formspatterns, characters, or a coding. The partial region (26) without color-shifting effect isformed by holes (44) in the reflection layer (32) in the form of patterns, characters, or acoding. In a first (22) of the two color-shifting partial regions, the dielectric spacing layer(34) consists of first and second dielectric partial layers (40, 42) arranged one over theother and produces a partial region (22) having a first color-shifting effect. In a second(24) of the two color-shifting partial regions, the dielectric spacing layer (34) consists onlyof the second dielectric partial layer (42) and produces a partial region (24) having asecond, different color-shifting effect.
申请人：Giesecke+Devrient Currency Technology GmbH
地址：Prinzregentenstraße 159 81677 München DE
国籍：DE
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