发明申请
- 专利标题: Black-to-Color Shifting Security Element
- 专利标题(中): 黑色到彩色移位安全元素
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申请号: US11912348申请日: 2006-04-05
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公开(公告)号: US20090278345A1公开(公告)日: 2009-11-12
- 发明人: Claude-Alain Despland , Albert Stichelberger , Edgar Müller , Pierre Degott
- 申请人: Claude-Alain Despland , Albert Stichelberger , Edgar Müller , Pierre Degott
- 申请人地址: CH Prilly
- 专利权人: SICPA HOLDING S.A.
- 当前专利权人: SICPA HOLDING S.A.
- 当前专利权人地址: CH Prilly
- 优先权: EP05103729.9 20050504
- 国际申请: PCT/EP06/61322 WO 20060405
- 主分类号: B42D15/00
- IPC分类号: B42D15/00 ; B42D15/10
摘要:
The invention discloses a security element for a banknote, a document of value, right or identity, a ticket, a label, a branded good identifier, or a tax banderole. The element comprises a combination of a coating containing at least one optically variable pigment having a substantial viewing-angle dependent color variation, with at least one selective spectral absorbing material, which blocks out visible spectral components reflected by the optically variable pigment at orthogonal incidence. The security element appears black when viewed at orthogonal angle, and colored when viewed at grazing angle.
公开/授权文献
- US08147932B2 Black-to-color shifting security element 公开/授权日:2012-04-03
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