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Proceedings Paper

Holographic features in security printing and the human face in currency printing
Author(s): Gilbert Colgate
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Paper Abstract

In security printing in general and currency printing in particular, it is very rare for a single security feature to carry the total burden of 'authenticity.' There is almost always a layering of features, which in their complexity and coherence eventually determine the genuine. We give examples to show holography is no exception to the rule of layering. After discussing the integration of various layered holographic features into a security product, the paper discusses currency, proposing authentication of currency is, today, fundamentally a human perception and that the human eye is more attuned to recognition of a face than a machine readable random pattern.

Paper Details

Date Published: 15 March 1996
PDF: 5 pages
Proc. SPIE 2659, Optical Security and Counterfeit Deterrence Techniques, (15 March 1996); doi: 10.1117/12.235462
Show Author Affiliations
Gilbert Colgate, American Bank Note Co. (United States)

Published in SPIE Proceedings Vol. 2659:
Optical Security and Counterfeit Deterrence Techniques
Rudolf L. van Renesse, Editor(s)

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