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Automated verification systems and methods for use with optical interference devices

  • US 6,473,165 B1
  • Filed: 01/21/2000
  • Issued: 10/29/2002
  • Est. Priority Date: 01/21/2000
  • Status: Expired due to Term
First Claim
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1. A system for verifying the authenticity of an object, comprising:

  • (a) at least one light source configured to direct an incident light beam toward an object to be authenticated;

    (b) at least one optical detector configured to receive the light beam directed along a first optical path from the object where a color shifting optical interference security feature should be located, the optical detector adapted to measure the light beam over a range of spectral wavelengths to generate a spectral curve corresponding to the reflectance or transmittance spectra of the security feature; and

    (c) a data analyzing device operatively connected to the optical detector and adapted to analyze the spectral curve generated by the optical detector to verify the authenticity of the object.

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