Optically variable ink

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Anti-counterfeiting measure

title: "Optically variable ink" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["money-forgery"] description: "Anti-counterfeiting measure" topic_path: "general/money-forgery" source: "https://en.wikipedia.org/wiki/Optically_variable_ink" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Anti-counterfeiting measure ::

References

  1. . ["New design for the US $50"](http://www.sicpa.com/731/764/1860/1911/7512.asp). *SICPA*.
  2. "3rd ICAO MRTD Biometrics and Security Standard Symposium - 2007". International Civil Aviation Organization.
  3. "US6383638B1 - Bright metal flake based pigments - Google Patents".
  4. "CN1900178B - Framework or border are provided around the opaque flakes applied for concealed anti-false - Google Patents".
  5. "CN1923912B - Alignable diffractive pigment flakes and method and apparatus for alignment and images formed therefrom - Google Patents".
  6. "US6749777B2 - Diffractive pigment flakes and compositions - Google Patents".
  7. (11 September 2018). "Security features - Europa series €100 banknote". European Central Bank.
  8. "GET TO KNOW THE BRAZILIAN BANKNOTES". Central Bank of Brazil.
  9. "Banknotes". Central Bank of the Russian Federation.

::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::

money-forgery