专利名称：Security document comprising means for
authentication and method forauthentication of security document
发明人：Tejada Palacios, Javier, Prof. Dep. Fisica
Fonda-,Arieta, Antonio J.
申请号：EP03029829.3申请日：20031224公开号：EP1548657A1公开日：20050629
专利附图：
摘要：A security document according to the invention comprises substrate means 2
and security means 5 for authentication provided on a predetermined area 4 of saidsubstrate means. The security means comprises means selectively reflecting visible lightdepending on the temperature and means changing the temperature depending on theapplication of a magnetic field. The means selectively reflecting light and the meanschanging the temperature are arranged as to form said security means exhibitingdifferent colors depending on a magnetic field applied to the substrate means. In apreferred embodiment of the invention, the means selectively reflecting visible lightcomprises liquid crystals and the means changing the temperature comprises gadolinium.
申请人：European Central Bank
地址：Kaiserstrasse 29 60311 Frankfurt am Main DE
国籍：DE
代理机构：Luderschmidt, Schüler & Partner GbR
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