Invention Grant
- Patent Title: Security element provided with an optically-variable layer and method for the production thereof
- Patent Title (中): 提供光学可变层的安全元件及其生产方法
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Application No.: US11576583Application Date: 2005-10-06
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Publication No.: US08276945B2Publication Date: 2012-10-02
- Inventor: Manfred Heim , Friedrich Kretschmar
- Applicant: Manfred Heim , Friedrich Kretschmar
- Applicant Address: DE Munich
- Assignee: Giesecke & Devrient GmbH
- Current Assignee: Giesecke & Devrient GmbH
- Current Assignee Address: DE Munich
- Agency: Greenlee Sullivan P.C.
- Priority: DE102004049118 20041007
- International Application: PCT/EP2005/010766 WO 20051006
- International Announcement: WO2006/040069 WO 20060420
- Main IPC: B42D15/00
- IPC: B42D15/00 ; B42D15/10 ; B42D103/00
Abstract:
The present invention relates to a security element for securing valuable articles, having an optically variable layer (20) that imparts different color impressions at different viewing angles. According to the present invention, in a covering area (32), a semi-transparent ink layer (34) is disposed on top of the optically variable layer (20), the color impression of the optically variable layer (20) being coordinated with the color impression of the semi-transparent ink layer (34) in the covering area (32) when viewed under predefined viewing conditions.
Public/Granted literature
- US20070241553A1 Security Ekement Provided with an Optically-Variable Layer and Method for The Production Thereod Public/Granted day:2007-10-18
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