USE OF RAMAN MARKERS FOR AUTHENTICATING SECURITY DOCUMENTS

The present invention relates to the use of non deactivable security markers comprising the combination of at least two types of nanoparticles of materials presenting Raman effect, wherein said nanoparticles are in a dispersed state or is forming agglomerates of between 2 and 500 nanoparticles. The...

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Bibliographische Detailangaben
Hauptverfasser:	ROMERO FANEGO, Juan José, GARCÍA JUEZ, Vicente, LORITE VILLALBA, Israel, GAMO ARANDA, Javier, RODRIGUEZ BARBERO, Miguel Ángel, RUIZ QUEVEDO, Andrés, FERNANDEZ LOZANO, José Francisco
Format:	Patent
Sprache:	eng ; spa
Schlagworte:	BOOK COVERS BOOKBINDING CHECKING-DEVICES COLORIMETRY 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 INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LOOSE LEAVES MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING 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 RADIATION PYROMETRY SPECIAL PRINTED MATTER TESTING TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention relates to the use of non deactivable security markers comprising the combination of at least two types of nanoparticles of materials presenting Raman effect, wherein said nanoparticles are in a dispersed state or is forming agglomerates of between 2 and 500 nanoparticles. The invention also relates to security documents, articles or elements incorporating these markers, as well as to a method and system for the detection thereof. La presente invención se relaciona con el uso de marcadores de seguridad no desactivables que comprenden la combinación de al menos dos tipos de nanopartículas de materiales que presentan efecto Raman, donde dicha nanopartículas se encuentran en estado disperso o formando aglomerados de entre 2 y 500 nanopartículas. La invención también se refiere a documentos, artículos o elementos de seguridad que incorporan estos marcadores, así como a un método y a un sistema de detección de los mismos.