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:
-
- Knoxville, TN
- Oak Ridge, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 872902
- Patent Number(s):
- 6035914
- Assignee:
- Martin Marietta Energy Systems Inc. (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B42 - BOOKBINDING B42D - BOOKS
D - TEXTILES D21 - PAPER-MAKING D21H - PULP COMPOSITIONS
- 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; /156/162/
Citation Formats
Ramsey, J Michael, and Klatt, Leon N. Counterfeit-resistant materials and a method and apparatus for authenticating materials. United States: N. p., 2000.
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. Sat .
"Counterfeit-resistant materials and a method and apparatus for authenticating materials". United States. https://www.osti.gov/servlets/purl/872902.
@article{osti_872902,
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 = {Sat Jan 01 00:00:00 EST 2000},
month = {Sat Jan 01 00:00:00 EST 2000}
}
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