发明名称 |
AUTHENTICITY MARK IN THE FORM OF LUMINESCENT SUBSTANCES |
摘要 |
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. |
申请公布号 |
EP2089237(A1) |
申请公布日期 |
2009.08.19 |
申请号 |
EP20070818846 |
申请日期 |
2007.10.09 |
申请人 |
GIESECKE & DEVRIENT GMBH |
发明人 |
HEER, STEPHAN;GIERING, THOMAS;STOCK, KAI UWE;GRAUVOGL, GREGOR |
分类号 |
B42D25/00;B41M3/14;G07D7/12 |
主分类号 |
B42D25/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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