OPTISCHES AUFZEICHNUNGSMEDIUM

An optical recording medium contains, on a base, one or more dyes and a polymer which forms liquid-crystalline phases. The information is written into the uniformly oriented liquid-crystalline polymer layer, for example by means of a laser. During this procedure, the polymer heats up locally to abov...

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Bibliographische Detailangaben
Hauptverfasser:	NEUMANN, PETER., 6908 WIESLOCH, DE, WINDSCHEID, FRIEDRICH, 7800 FREIBURG, DE, ETZBACH, KARL-HEINZ., 6710 FRANKENTHAL, DE, RINGSDORF, HELMUT, DR, KIEFER, RUDOLF., 7801 VOERSTETTEN, DE, DUST, MATTHIAS., 6800 MANNHEIM, DE, SCHMIDT, HANS-WERNER., 6500 MAINZ, DE, BAUR, GUENTER
Format:	Patent
Sprache:	ger
Schlagworte:	ADHESIVES CHEMISTRY COLOUR PRINTING 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 DYES FREQUENCY-CHANGING INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER LINING MACHINES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PAINTS PERFORMING OPERATIONS PHYSICS POLISHES PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES STAMPS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	An optical recording medium contains, on a base, one or more dyes and a polymer which forms liquid-crystalline phases. The information is written into the uniformly oriented liquid-crystalline polymer layer, for example by means of a laser. During this procedure, the polymer heats up locally to above a phase transition temperature. By cooling, the resulting change is frozen in the glass state. The information can be erased by applying an electric field and/or heating. The recording material permits high-contrast storage and possesses high sensitivity, good resolution and excellent stability.