Value or security product with luminescent security elements...

B - Operations – Transporting – 41 – M

Patent

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Details

B41M 3/14 (2006.01) B42D 15/00 (2006.01) D21H 21/48 (2006.01) G07D 7/00 (2006.01) C09K 11/02 (2006.01)

Patent

CA 2283428

The invention relates to a value or security product such as a banknote, ID card or the like, which is provided with luminescent security elements which are excitable in an electromagnetic alternating field. The invention further relates to a production method of applying the required colours and substances to said value or security product. Also disclosed is a respective security technology arrangement for visual and machine-operated detection of authenticity, wherein electrical fields in particular and optical radiation, preferably in the UV wavelength range, are used to excite so-called phosphorus colours and additional optical effects in the visible UV wavelength range can be achieved by means of secondary excitation mechanisms.

L'invention concerne un produit de valeur et de sécurité, tel qu'un billet de banque, une pièce d'identité, etc., qui comporte des éléments de sécurité luminescents pouvant être excités dans un champ électromagnétique alternatif. Elle concerne également un procédé permettant de le fabriquer, selon lequel on applique les couleurs et les substances nécessaires sur ledit produit. Elle concerne aussi un dispositif conçu selon la technologie de sécurité correspondante, et destiné à vérifier visuellement et mécaniquement l'authenticité dudit produit, dans lequel on utilise notamment des champs électriques et un rayonnement optique, de préférence compris dans la plage de longueur d'onde des UV, pour exciter ce qu'on appelle des couleurs phosphorescentes, et qui permet d'obtenir, par des mécanismes excitateurs secondaires, des effets optiques supplémentaires dans la plage des longueurs d'onde visibles.

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