OPTICAL DISK AND PRODUCTION METHOD THEREOF

The present invention provides an optical disk having high density and excellent quality as well as compatibility with conventional disks. This optical disk is comprised of a disk-shaped substrate formed with a cyclic olefin copolymer as its main component and a light-curing resin layer formed on th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NISHIKAWA, TAKAO, TAKAKUWA, ATSUSHI, NEBASHI, SATOSHI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PERFORMING OPERATIONS PHYSICS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The present invention provides an optical disk having high density and excellent quality as well as compatibility with conventional disks. This optical disk is comprised of a disk-shaped substrate formed with a cyclic olefin copolymer as its main component and a light-curing resin layer formed on the disk-shaped substrate, wherein a relief-and-indentation is formed on the light-curing resin layer based on given information. The same effect can be obtained using a heat-curing resin in place of the light-curing resin. The present invention also allows optical disks having such superior characteristics to be mass-produced.