B - Operations – Transporting – 42 – D
Patent
B - Operations, Transporting
42
D
B42D 15/00 (2006.01) B42D 15/10 (2006.01) G02B 1/00 (2006.01)
Patent
CA 2758623
A security device is disclosed having a region of piezochromic material (102) and an integrated relief structure (103). The security device is arranged such that when a stress is generated in the piezochromic material and relief structure, an op-tical effect is generated in the piezochromic material.
La présente invention concerne un dispositif de sécurité qui comprend une région en matériau piézochromique et une structure en relief intégrée. Le dispositif de sécurité est conçu de manière à générer un effet optique dans le matériau piézochromique lors de la génération d'une contrainte dans le matériau piézochromique et la structure en relief.
Eastell Christopher John
Whiteman Robert
Borden Ladner Gervais Llp
de La Rue International Limited
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