1 October 1991 Fraud involving OVDs and possible security measures
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Proceedings Volume 1509, Holographic Optical Security Systems; (1991) https://doi.org/10.1117/12.47116
Event: ECO4 (The Hague '91), 1991, The Hague, Netherlands
This paper will discuss the state of the art of optical variable devices (OVDs) as security elements, and the possibilities of fraud-criminals to counterfeit OVDs. The activities of criminals in this field will be reviewed. A few practical cases will be presented, and feasible solutions to protect OVDs against counterfeiting will be proposed.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Dirk Schuurman, Dirk Schuurman, } "Fraud involving OVDs and possible security measures", Proc. SPIE 1509, Holographic Optical Security Systems, (1 October 1991); doi: 10.1117/12.47116; https://doi.org/10.1117/12.47116


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