IDENTIFICATION MEDIUM AND METHOD FOR IDENTIFYING IDENTIFICATION MEDIUM

A discrimination medium on which printing can be freely performed, which cannot be easily falsified, in which the authenticity can be easily discriminated by unique appearance, and which can be produced at low cost, is provided. A cholesteric liquid crystal layer 10 or a multilayer film 5, and a bre...

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Bibliographische Detailangaben
Hauptverfasser:	HOSHINO, HIDEKAZU, TAKEUCHI, ITSUO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADVERTISING BOOK COVERS BOOKBINDING CRYPTOGRAPHY DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR DISPLAY DISPLAYING EDUCATION FILES LABELS OR NAME-PLATES LOOSE LEAVES MOVABLE-STRIP WRITING OR READING APPARATUS 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 TRANSPORTING
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Beschreibung
Zusammenfassung:	A discrimination medium on which printing can be freely performed, which cannot be easily falsified, in which the authenticity can be easily discriminated by unique appearance, and which can be produced at low cost, is provided. A cholesteric liquid crystal layer 10 or a multilayer film 5, and a breakable print recording layer are laminated in the discrimination medium. The multilayer film 5 has plural light transparent films which are laminated and are different from each other in refraction index. Therefore, the discrimination medium has unique optical characteristics such that a character, a symbol, a pattern, a figure formed by printing by a thermal printer or the like changes in color depending on the viewing angle. A discrimination method using the above optical characteristics of the discrimination medium is provided.