Paper
7 April 2000 New optical security features in plastic documents
Author Affiliations +
Abstract
Protecting identification documents against fraud attacks means constant innovation. Enschede/Sdu has developed a plastic security document with three new optical security features, which can easily be verified with the naked eye. The properties of plastics, especially the thermo plastic behavior, makes it possible to incorporate some elements into the document which are not possible with paper.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jan van den Berg and Arnoud Augustinus "New optical security features in plastic documents", Proc. SPIE 3973, Optical Security and Counterfeit Deterrence Techniques III, (7 April 2000); https://doi.org/10.1117/12.382184
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CITATIONS
Cited by 1 scholarly publication and 1 patent.
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KEYWORDS
Polymers

Ultraviolet radiation

Laser engraving

Digital watermarking

Image quality

Transparency

Luminescence

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