An improved security device

Details An improved security device An improved security device

G - Physics

06

K

G06K 19/06 (2006.01) B42D 15/00 (2006.01) B42D 15/10 (2006.01)

Patent

CA 2528909

A security device that increases the number of design options available for a machine testable security feature formed in part from a light absorbing (e.g., magnetic) material, while more effectively hiding or concealing this material, is provided. The inventive security device achieves these results by physically separating this security feature from a visually detectable or public security feature. The security device comprises carrier substrates (12), (16) which are light-transmitting (transparent) substrates of a thickness from 4 to 26 microns, preferably colorless polymers. Also provided by way of this invention is a process for preparing the inventive security device as well as a security document that employs one or more such devices.

La présente invention a trait à un dispositif de sécurité qui accroît le nombre d'options de modèle pour un élément de sécurité apte à être testé par machine réalisé en partie en un matériau d'absorption de la lumière (par exemple, magnétique), tout en masquant ou cachant de manière plus efficace ce matériau. Le dispositif de sécurité selon l'invention réalise de tels résultats grâce à la séparation physique de l'élément de sécurité d'un élément de sécurité apte à être perçu visuellement ou d'un élément de sécurité public. L'invention a également trait à un procédé pour la préparation du dispositif de sécurité ainsi qu'à un document de sécurité mettant en oeuvre un ou plusieurs dispositifs selon l'invention.

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