Counterfeit-resistant materials and a method and apparatus for a

Details Counterfeit-resistant materials and a method and apparatus for a Counterfeit-resistant materials and a method and apparatus for a

1993-10-22

2000-03-14

Dixon, Merrick

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With testing, measuring, and/or indicating means

156379, 162103, 162105, 162108, B32B 3100

Patent

active

060359145

ABSTRACT:
Fluorescent dichroic fibers randomly incorporated within a media provide an improved method for authentication and counterfeiting protection. The dichroism is provided by an alignment of fluorescent molecules along the length of the fibers. The fluorescent fibers provide an authentication mechanism of varying levels of capability. The authentication signature depends on four parameters; the x,y position, the dichroism and the local environment. The availability of so many non-deterministic variables makes production of counterfeit articles (e.g., currency, credit cards, etc.) essentially impossible. Counterfeit-resistant articles, an apparatus for authenticating articles, and a process for forming counterfeit-resistant media are also provided.

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