PRESERVED AND ENHANCED HOLOGRAPHIC AND OPTICALLY VARIABLE DEVICES AND METHOD FOR MAKING THE SAME

An optically variable device (10, 30, 50) has a substrate (12, 32) with an optically variable relief (16, 36) and a coating (18, 38) on the optically variable relief . The coating is applied as a liquid dispersion including a plurality of optical enhancer particles (20, 38) in a solvent. L'inve...

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Bibliographische Detailangaben
Hauptverfasser:	OLSEN, JR., FRANK J, KUTSCH, WILHELM P
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BOOK COVERS BOOKBINDING CINEMATOGRAPHY DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR ELECTROGRAPHY FILES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HOLOGRAPHIC PROCESSES OR APPARATUS HOLOGRAPHY LOOSE LEAVES MOVABLE-STRIP WRITING OR READING APPARATUS PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR SPECIAL PRINTED MATTER TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING
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Beschreibung
Zusammenfassung:	An optically variable device (10, 30, 50) has a substrate (12, 32) with an optically variable relief (16, 36) and a coating (18, 38) on the optically variable relief . The coating is applied as a liquid dispersion including a plurality of optical enhancer particles (20, 38) in a solvent. L'invention concerne un dispositif optiquement variable (10, 30, 50), qui comprend un substrat (12, 32) présentant un relief optiquement variable (16, 36) sur lequel un revêtement (18, 38) est disposé. Le revêtement est appliqué sous forme de dispersion liquide comprenant une pluralité de particules activatrices optiques (20, 38) dans un solvant.