Use and efficacy of DOVIDs and other optical security devices

Ian M. Lancaster

doi:10.1117/12.648416

9 February 2006 Use and efficacy of DOVIDs and other optical security devices

Ian M. Lancaster

Proceedings Volume 6075, Optical Security and Counterfeit Deterrence Techniques VI; 60750O (2006) https://doi.org/10.1117/12.648416
Event: Electronic Imaging 2006, 2006, San Jose, California, United States

Abstract

Diffractive optically variable image devices (DOVIDs) have become the primary overt authentication or security feature on protected documents and products, apart from the substrate itself and the printed design − which are the oldest but still effective authentication features. But their efficacy is being compromised by false expectations and counterfeits. It is therefore necessary to establish a clear statement of the role of DOVIDs and their function in the inspection and protection of suspect items, which will also apply to other optical security devices (OSDs).

Citation Download Citation

Ian M. Lancaster "Use and efficacy of DOVIDs and other optical security devices", Proc. SPIE 6075, Optical Security and Counterfeit Deterrence Techniques VI, 60750O (9 February 2006); https://doi.org/10.1117/12.648416

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