HOLOGRAPHIC MEDIUM WITH PROTECTIVE COATING

This invention relates to a holographic medium comprising a protective layer and a photopolymer film which is bonded to the protective layer and contains polyurethane matrix polymers, acrylate writing monomers and photoinitiators, wherein the protective layer is impermeable to the constituents of th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FLEMM, UTE, HENTSCHEL, DANIEL, PETZOLDT, JOACHIM, FÄCKE, THOMAS, RÖLLE, THOMAS, HÖNEL, DENNIS, WEISER, MARC-STEPHAN, BRUDER, FRIEDRICH-KARL, NAZARAN, PANTEA, DÖRR, SEBASTIAN, DIJKSTRA, DIRK
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS
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Beschreibung
Zusammenfassung:	This invention relates to a holographic medium comprising a protective layer and a photopolymer film which is bonded to the protective layer and contains polyurethane matrix polymers, acrylate writing monomers and photoinitiators, wherein the protective layer is impermeable to the constituents of the photopolymer film, is optically clear and is transparent to electromagnetic radiation having a wavelength in the range of from 350 to 800 nm. The invention further provides the use of a holographic medium according to the invention in the production of holograms, and a process for the production of a holographic medium according to the invention.