DISTINGUISHING MEDIUM

In an identification medium, switching of images can be clearly observed, and the medium has a structure produced at low cost. The structure comprises a cholesteric liquid crystal layer 102 in which a hologram is formed, and which selectively reflects circularly polarized light of a specific rotatin...

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Bibliographische Detailangaben
Hauptverfasser:	TAKEUCHI, Itsuo, SHIBUYA, Seiya, HOSHINO, Hidekazu, IDA, Tooru
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADVERTISING BOOK COVERS BOOKBINDING CRYPTOGRAPHY DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DISPLAY DISPLAYING EDUCATION FILES FREQUENCY-CHANGING LABELS OR NAME-PLATES LOOSE LEAVES MOVABLE-STRIP WRITING OR READING APPARATUS NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PERFORMING OPERATIONS PHYSICS PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR SEALS SIGNS SPECIAL PRINTED MATTER TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF TRANSPORTING
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