Thin film structure having magnetic and color shifting properties
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United States of America Patent
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Jun 13, 1989
Grant Date -
N/A
app pub date -
May 3, 1988
filing date -
May 3, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Thin film structure having magnetic properties and optically variable properties comprising a substrate and a multilayer interference coating carried by the substrate producing an inherent color shift with angle. The interference coating has a metal-dielectric design which includes a metal which has magnetic as well as reflective properties.
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Cited Art Landscape
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