Document of value and/or security document

Security documents for high-speed verification contain up-conversion elements in the form of small inorganic particles, applied near the surface of the document, which allow high-speed verification by near infrared (NIR) light stimulation and detection of the emission bands in the visible and NIR wa...

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Bibliographische Detailangaben
Hauptverfasser:	FRANZ-BURGHOLZ, ARNIM, BAILLEU, ANETT, BROCKMANN, HELGE, SCHMIDT, WOLFGANG, AHLERS, BENEDIKT, BRAUER, GABRIELE, MUTH, OLIVER, PAESCHKE, MANFRED, ZERBEL, HANS
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BOOK COVERS BOOKBINDING COLOUR PRINTING DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR FILES LINING MACHINES LOOSE LEAVES MOVABLE-STRIP WRITING OR READING APPARATUS PERFORMING OPERATIONS PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES SPECIAL PRINTED MATTER STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	Security documents for high-speed verification contain up-conversion elements in the form of small inorganic particles, applied near the surface of the document, which allow high-speed verification by near infrared (NIR) light stimulation and detection of the emission bands in the visible and NIR wavelength range. An Independent claim is also included for security documents for high-speed verification, which contain an up-conversion phosphor comprising a thulium-activated and ytterbium-codoped gadolinium oxysulfide of the composition: