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Proceedings Paper

An optical method for document protection against counterfeit
Author(s): Jacek Janucki; Jan Owsik
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Paper Abstract

The optical method for document protection against counterfeit has been proposed. It is based on the use of optically variable graphics. For the security device design the numerical computation algorithm has been formulated. The algorithm is founded on the coupled-waves theory of the light diffraction by gratings. The computation example for the holographic foil design is demonstrated.

Paper Details

Date Published: 29 December 2004
PDF: 6 pages
Proc. SPIE 5615, Technologies for Optical Countermeasures, (29 December 2004); doi: 10.1117/12.578035
Show Author Affiliations
Jacek Janucki, Military Univ. of Technology (Poland)
Jan Owsik, Military Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 5615:
Technologies for Optical Countermeasures
David H. Titterton, Editor(s)

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