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U.S. Department of Energy
Office of Scientific and Technical Information

Detection of counterfeit currency

Patent ·
OSTI ID:644398

A method is disclosed of detecting counterfeit currency by contacting the currency to be tested with near infrared beams in the spectrum below 1,250 nanometers, measuring reflectance of the near infrared beams and comparing the reflectance values with those from genuine currency. 18 figs.

Research Organization:
University of California
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
W-7405-ENG-36
Assignee:
Univ. of California, Oakland, CA (United States)
Patent Number(s):
US 5,757,001/A/
Application Number:
PAN: 8-641,657
OSTI ID:
644398
Country of Publication:
United States
Language:
English