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Detection of counterfeit currency

United States Patent

5,757,001
May 26, 1998
View the Complete Patent at the US Patent & Trademark Office
Los Alamos National Laboratory - Visit the Technology Transfer Division Website
A method of detecting counterfeit currency by contacting the currency to be tested with near infrared beams in the spectrum below 1250 namometers, measuring reflectance of the near infrared beams and comparing the reflectance values with those from genuine currency.
Burns; Donald A. (Los Alamos, NM)
The Regents of the University of Calif. (Oakland, CA)
08/ 641,657
May 1, 1996
This invention was made with government support under Contract No. W-7405-ENG-36 awarded by the U.S. Department of Energy. The government has certain rights in the invention.