OPTICAL DISC AND DISC CARTRIDGE CONTAINING THE SAME

A large capacity recording medium is formed by bonding at least two disc-shaped recording plates to provide a structure adapted to absorb any manufacturing errors in the direction of the height of the recording medium. The second substrate (3) has a projecting section (23) entering a plate receiving...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MASUHARA SHIN, KISHI SHINSUKE
Format:	Patent
Sprache:	eng
Schlagworte:	INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS
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Beschreibung
Zusammenfassung:	A large capacity recording medium is formed by bonding at least two disc-shaped recording plates to provide a structure adapted to absorb any manufacturing errors in the direction of the height of the recording medium. The second substrate (3) has a projecting section (23) entering a plate receiving recess (11) of the first substrate (2) keeping a gap (C1) between the front of it and the plate receiving recess (11). A raised section (6) of the first substrate (2) may be exposed through an exposure in a cartridge.