Anti counterfeit apparatus

Details Anti counterfeit apparatus Anti counterfeit apparatus

G - Physics

07

D

G07D 7/00 (2006.01) G01V 15/00 (2006.01) G06K 7/10 (2006.01) G07D 7/12 (2006.01)

Patent

CA 2189977

Apparatus for distinguishing between genuine and counterfeit articles whereby a first optical filter is applied to genuine articles and suspect articles are scanned with the aid of a suitable second optical filter. Scanning of genuine articles incorporating first optical filter with the aid of suitable second optical filter gives rise to optical effects which would not otherwise be apparent.

Dispositif servant à effectuer une distinction entre des articles authentiques et contrefaits, où un premier filtre optique est appliqué aux articles authentiques et où les articles suspects sont analysés au moyen d'un deuxième filtre optique approprié. L'analyse des articles authentiques incorporant le premier filtre optique à l'aide du deuxième filtre optique approprié produit des effets optiques qui, sinon, n'apparaîtraient pas.

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