- 专利标题: Optically variable security element having reflective surface region
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申请号: US17258666申请日: 2019-07-09
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公开(公告)号: US11623465B2公开(公告)日: 2023-04-11
- 发明人: Kai Hermann Scherer , Maik Rudolf Johann Scherer , Raphael Dehmel , Michael Rahm , Giselher Dorff , Andreas Rauch , Christian Fuhse , Tobias Sattler
- 申请人: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH
- 申请人地址: DE Munich
- 专利权人: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH
- 当前专利权人: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH
- 当前专利权人地址: DE Munich
- 代理机构: Workman Nydegger
- 优先权: DE102018005447.1 20180709
- 国际申请: PCT/EP2019/000208 WO 20190709
- 国际公布: WO2020/011390 WO 20200116
- 主分类号: B42D25/324
- IPC分类号: B42D25/324 ; B42D25/351
摘要:
An optically variable security element wherein the areal expansion whereof defines a z direction standing perpendicularly thereon, and has a multicolored, reflective areal region. The areal region includes two relief structures arranged at different height levels in the z direction. The relief structures are each supplied with an ink coating which produce a different color impression. The ink coating of the relief structure disposed at a higher level is configured in the feature region as a regular or irregular grid with grid elements and grid spaces. The dimensions of the grid elements and/or grid spaces are below 140 μm at least in one direction, so that, in the feature region, for a viewer from at least one viewing angle, the ink coating of the relief structure disposed at a lower level is visible through the grid spaces of the ink coating of the relief structure disposed at a higher level.
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