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- Optically_variable_ink abstract "Optically variable ink (OVI) is an anti-counterfeiting measure used on many major modern banknotes.The ink displays two distinct colors depending on the angle the bill is viewed at. The United States fifty-dollar bill, for example, uses color shifting ink for the numeral 50 so that it displays copper at one angle and bright green in another.OVI is particularly useful as an anti-counterfeiting measure as it is not widely available; the major manufacturer is a Swiss company called SICPA (Société Industrielle et Commerciale de Produits pour l'Agriculture), as well can be supplied by Sun Chemical, through their Brand Protection Division based in Manchester, UK.Color-shifting inks reflect various wavelengths in white light differently, depending on the angle of incidence to the surface. An unaided eye will observe this effect as a change of color while the viewing angle is changed. A color copier or scanner can copy a document only at one fixed angle relative to the document’s surface.".
- Optically_variable_ink thumbnail Ovi.png?width=300.
- Optically_variable_ink wikiPageID "6095865".
- Optically_variable_ink wikiPageRevisionID "553789118".
- Optically_variable_ink hasPhotoCollection Optically_variable_ink.
- Optically_variable_ink subject Category:Money_forgery.
- Optically_variable_ink comment "Optically variable ink (OVI) is an anti-counterfeiting measure used on many major modern banknotes.The ink displays two distinct colors depending on the angle the bill is viewed at.".
- Optically_variable_ink label "OVI (Druck)".
- Optically_variable_ink label "OVI (краска)".
- Optically_variable_ink label "Optically variable ink".
- Optically_variable_ink label "光学变色油墨".
- Optically_variable_ink sameAs OVI_(Druck).
- Optically_variable_ink sameAs m.0fpxsj.
- Optically_variable_ink sameAs Q456378.
- Optically_variable_ink sameAs Q456378.
- Optically_variable_ink wasDerivedFrom Optically_variable_ink?oldid=553789118.
- Optically_variable_ink depiction Ovi.png.
- Optically_variable_ink isPrimaryTopicOf Optically_variable_ink.
