Invention Grant
- Patent Title: Authenticity mark in the form of luminescent substances
- Patent Title (中): 发光物质形式的真实性标记
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Application No.: US12445038Application Date: 2007-10-09
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Publication No.: US08367188B2Publication Date: 2013-02-05
- Inventor: Stephan Heer , Thomas Giering , Kai Uwe Stock , Gregor Grauvogl
- Applicant: Stephan Heer , Thomas Giering , Kai Uwe Stock , Gregor Grauvogl
- Applicant Address: DE Munich
- Assignee: Giesecke & Devrient GmbH
- Current Assignee: Giesecke & Devrient GmbH
- Current Assignee Address: DE Munich
- Agency: Bacon & Thomas, PLLC
- Priority: DE102006047851 20061010
- International Application: PCT/EP2007/008773 WO 20071009
- International Announcement: WO2008/043522 WO 20080417
- Main IPC: G06K19/14
- IPC: G06K19/14

Abstract:
A printed document of value has an authenticity feature in the form of at least two luminescent substances on the basis of host lattices which are doped with one or a plurality of ions. By systematically changing the host lattices and/or ions of the (nd)3 electron configuration a specific setting of the luminescence properties of luminescent substances is possible, the combination of which permits a multiplicity of complex new authenticity features.
Public/Granted literature
- US20100026991A1 AUTHENTICITY MARK IN THE FORM OF LUMINESCENT SUBSTANCES Public/Granted day:2010-02-04
Information query
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