2007 NSTI Nanotechnology Conference and Trade Show - Nanotech 2007 - 10th Annual

Anti-Counterfeiting Filters for Currencies, IDs and Goods

D. Leconte
Univalor (Gestion Univalor, limited partnership), CA

Keywords:
Optical Security, Optical Filters, Metamerism, Metal-Dielectric Filters, Hidden Image.

Abstract:
The technology uses interference filters having a color shift as a function of the observation angle in order to provide effective measures against counterfeiting of bank notes, IDs and goods to be protected. Such filters when correctly integrated will allow easy anti-counterfeiting evaluation without additional equipment.

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Nanotech 2007 Conference Program Abstract

 
 

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