Object of value comprising a moire pattern

G - Physics – 07 – D

Patent

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G07D 7/12 (2006.01)

Patent

CA 2556457

The invention relates to an object of value (15) for example a credit card, bank note or form of identification. The object of value (15) has a carrier layer (1), at least one first layer (21) that contains a moiré pattern and at least one second layer (31, 33) comprising at least one moiré analyser for the moiré pattern of the first layer (21). Said second layer is located above or below the first layer in a fixed position in relation to the first layer, in such a way that at least sections of the moiré pattern of the first layer (21) and the moiré analyser of the second layer (31, 33) are permanently optically superimposed, thus generating a permanent moiré image.

L'invention concerne un objet de valeur (15) comme des cartes de crédit, des billets de banque ou des cartes d'identité. L'objet de valeur (15) comprend une couche support (1), au moins une première couche contenant un motif moiré (31) et au moins une deuxième couche (33) contenant un analyseur de moiré destiné au motif moiré de la première couche (21). Cette deuxième couche est située sur ou sous la première couche sous la forme d'une couche fixe par rapport à la première couche de telle façon que le motif moiré (21) de la première couche (31) et l'analyseur de moiré la deuxième couche (33) se superposent optiquement de façon permanente au moins par zones, ce qui permet d'obtenir une image moiré permanente.

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