G - Physics
09
F
G09F 3/03 (2006.01)
Patent
CA 2453551
This invention relates to a security label for the detection of counterfeiting and tampering. The invention comprises a combination of an iridescent laminated or multilayered material with a lenticular layer. The iridescent layer exhibits an angular dependence in its coloration in reflection and/or transmission and the lenticular layer acts as a filter to light of a given angle of incidence.
L'invention concerne une étiquette de sécurité permettant de détecter les contrefaçons et les violations. L'invention comprend une combinaison de matériau irisé stratifié ou multicouche et de couche lenticulaire. La couche irisée présente une dépendance chromatique angulaire dans la réflexion et/ou la transmission, et la couche lenticulaire agit comme un filtre pour éclairer un angle d'incidence donné.
Lawrence Christopher Robert
O'keefe Eoin Seiorse
Fetherstonhaugh & Co.
Qinetiq Limited
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