SECURITY ELEMENT HAVING A MACHINE-READABLE AUTHENTICITY FEATURE

The invention relates to a security feature for security papers, valuable documents, chip cards and the like having a machine-readable authenticity feature. According to the invention, the authenticity feature contains at least one region with a periodically conductive surface element (42) that exhi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FINKENZELLER, KLAUS, PILLO, THORSTEN
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BOOK COVERS BOOKBINDING CHECKING-DEVICES COIN-FREED OR LIKE APPARATUS DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR FILES HANDLING OF COINS OR OF PAPER CURRENCY OR SIMILAR VALUABLEPAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING,DISPENSING, CHANGING OR DEPOSITING LOOSE LEAVES MOVABLE-STRIP WRITING OR READING APPARATUS PERFORMING OPERATIONS PHYSICS PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR SPECIAL PRINTED MATTER TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention relates to a security feature for security papers, valuable documents, chip cards and the like having a machine-readable authenticity feature. According to the invention, the authenticity feature contains at least one region with a periodically conductive surface element (42) that exhibits resonance effects in a predetermined frequency range of incident electromagnetic radiation.