Security device and authenticatable item

Details Security device and authenticatable item Security device and authenticatable item

B - Operations, Transporting

42

D

B42D 15/00 (2006.01) B42D 15/10 (2006.01)

Patent

CA 2096655

An authenticatable item and security device carry a number of symbols (4A, 4B, 4C, 6A, 6B, 6C) identifiable to the naked eye, there being at least two sets of at least three symbols. All the symbols within a set are substantially identical, are positioned in a non-overlapping, regular geometric arrangement, and at least one common viewing angle of inclination, exhibit substantially the same optical performance, the optical performance varying with inclination viewing angle.

L'invention est constituée par un article authentifiable et un dispositif de sécurité portant un certain nombre de symboles (4A, 4B, 4C, 6A, 6B, 6C) identifiables à l'oeil nu groupés en deux ensembles au moins de trois symboles au moins. Tous les symboles d'un même ensemble sont essentiellement identiques et sont disposés selon un arrangement géométrique régulier sans chevauchement; ils ont au moins un angle d'inclinaison de visionnement commun et ont essentiellement la même performance optique, laquelle varie avec l'angle d'inclinaison de visionnement.

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