Invention Grant
- Patent Title: Security document with luminescent transition metal doping
- Patent Title (中): 具有发光过渡金属掺杂的安全文件
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Application No.: US10471060Application Date: 2002-03-05
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Publication No.: US08663820B2Publication Date: 2014-03-04
- Inventor: Thomas Giering , Rainer Hoppe , Fritz Stahr
- Applicant: Thomas Giering , Rainer Hoppe , Fritz Stahr
- Applicant Address: DE Munich
- Assignee: Giesecke & Devrient GmbH
- Current Assignee: Giesecke & Devrient GmbH
- Current Assignee Address: DE Munich
- Agency: Rothwell, Figg, Ernst & Manbeck
- Priority: DE10111116 20010308
- International Application: PCT/EP02/02405 WO 20020305
- International Announcement: WO02/070279 WO 20020912
- Main IPC: B32B9/00
- IPC: B32B9/00
Abstract:
The invention relates to a printed document of value having at least one authenticity feature in the form of a luminescent substance based on doped host lattices. The host lattice has a strong crystal field and is doped with at least one chromophore with the electron configuration (3d)2.
Public/Granted literature
- US20040105962A1 Value document Public/Granted day:2004-06-03
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