Security protection of documents or products by affixing an optically active component for verification of authenticity
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United States of America Patent
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Jan 25, 2011
Issued Date -
N/A
app pub date -
May 14, 2002
filing date -
Nov 19, 1999
priority date (Note) -
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Abstract
A component for authenticating a document or a product including a plastic film having at least one embossed surface, a metallization layer at least partially covering the embossed surface, the film and the metallized layer forming an embossed film having a first zone producing a rainbow effect according to a first orientation of the component in relation to a lighting direction, the rainbow effect disappearing when the component is oriented substantially perpendicularly to the first orientation, and a second zone which has been partially demetallized and remetallized with a dielectric material producing an effect of being colored by a first color for the first orientation of the component and by a second different color for the orientation substantially perpendicular to the first orientation.
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