Optically variable interference device with peak suppression and method
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United States of America Patent
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May 25, 1993
Issued Date -
N/A
app pub date -
Nov 27, 1991
filing date -
Aug 16, 1990
priority date (Note) -
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Abstract
Optical variable interference device with peak suppression having a reflector with first and second surfaces. A thin film multilayer interference stack is disposed on the first surface. The interference stack is comprised of at least two periods with each period being comprised of a metal absorber layer and a dielectric spacer layer.
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