发明授权
- 专利标题: Data carrier with an optically variable element
- 专利标题(中): 具有光学可变元件的数据载体
-
申请号: US860627申请日: 1997-09-18
-
公开(公告)号: US6036233A公开(公告)日: 2000-03-14
- 发明人: Eckhard Braun , Johann Muller , Reinhard Plaschka , Franz Daniel
- 申请人: Eckhard Braun , Johann Muller , Reinhard Plaschka , Franz Daniel
- 申请人地址: DEX Munich
- 专利权人: Giesecke & Devrient GmbH
- 当前专利权人: Giesecke & Devrient GmbH
- 当前专利权人地址: DEX Munich
- 优先权: DEX19541064 19951103
- 主分类号: B41M3/14
- IPC分类号: B41M3/14 ; B42D15/00 ; B42D25/29 ; B42D25/328 ; G02B5/00 ; G06T1/00
摘要:
A data carrier with an optically variable structure is described having an embossed screen which is combined with a coating contrasting with the surface of the data carrier in such a way that different optically variable effects occur at different angles. Embossed screen and/or coating are executed in such a way that especially striking or additional effects occur which are suitable for determining the authenticity of the data carrier but cannot be reproduced, or reproduced true to the original, with the help of copying machines.
公开/授权文献
- US5303113A Digital circuit interrupter with RFI and EMI shielding 公开/授权日:1994-04-12
信息查询