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Title: Counterfeit-resistant materials and a method and apparatus for authenticating materials

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&

Inventors:
 [1];  [2]
  1. Knoxville, TN
  2. Oak Ridge, TN
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
873782
Patent Number(s):
6246061
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Classifications (CPCs):
G - PHYSICS G07 - CHECKING-DEVICES G07D - HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
G - PHYSICS G06 - COMPUTING G06K - RECOGNITION OF DATA
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
counterfeit-resistant; materials; method; apparatus; authenticating; fluorescent; dichroic; fibers; randomly; incorporated; media; provide; improved; authentication; counterfeiting; protection; dichroism; provided; alignment; molecules; length; mechanism; varying; levels; capability; signature; depends; parameters; position; local; environment; availability; non-deterministic; variables; makes; production; counterfeit; articles; currency; credit; cards; etc; essentially; impossible; process; forming; resistant material; fluorescent molecules; improved method; varying levels; fluorescent fiber; randomly incorporated; media provide; fibers provide; dichroic fibers; fluorescent dichroic; fibers randomly; resistant materials; resistant articles; authenticating materials; counterfeiting protection; counterfeit-resistant materials; /250/235/359/

Citation Formats

Ramsey, J Michael, and Klatt, Leon N. Counterfeit-resistant materials and a method and apparatus for authenticating materials. United States: N. p., 2001. Web.
Ramsey, J Michael, & Klatt, Leon N. Counterfeit-resistant materials and a method and apparatus for authenticating materials. United States.
Ramsey, J Michael, and Klatt, Leon N. Mon . "Counterfeit-resistant materials and a method and apparatus for authenticating materials". United States. https://www.osti.gov/servlets/purl/873782.
@article{osti_873782,
title = {Counterfeit-resistant materials and a method and apparatus for authenticating materials},
author = {Ramsey, J Michael and Klatt, Leon N},
abstractNote = {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&},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}

Patent:

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