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Device and method for verifying the authenticity of banknotes

  • US 20030039359A1
  • Filed: 08/20/2002
  • Published: 02/27/2003
  • Est. Priority Date: 12/03/1999
  • Status: Active Grant
First Claim
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1. An apparatus for testing the authenticity of bank notes having at least one light source for emitting light suitable for exciting fluorescent light in a bank note to be checked (1 1), and at least one fluorescence detector (12) for detecting the fluorescent light emitted by the bank note to be checked (11), characterized in that the light source is a light-emitting diode (10), and the light-emitting diode (10) is formed to emit light containing ultraviolet light at least in a partial spectral region.

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