Multi-spectral holographic security marker, method for its manufacture and holographic security system

A multi-spectral holographic security marker 2 comprises an image plane volume hologram recorded in a polymeric pressure and light sensitive film data carrier, with one hologram area a having a first replay frequency (wavelength) and one or more other areas b having a further, different replay frequ...

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Bibliographische Detailangaben

Hauptverfasser:	MARTIN JOHN RICHARDSON, STEPHEN CHRISTOPHER BROWN, STEVEN L SMITH
Format:	Patent
Sprache:	eng
Schlagworte:	CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHIC PROCESSES OR APPARATUS HOLOGRAPHY PHOTOGRAPHY PHYSICS
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