HOLOGRAM OPTICAL REPRODUCING APPARATUS AND THICKNESS MEASURING METHOD OF HOLOGRAM OPTICAL RECORDING MEDIUM

PROBLEM TO BE SOLVED: To provide a hologram optical recording and reproducing apparatus that has an optical thickness sensor capable of measuring a thickness of an optical recording medium with high accuracy, and can improve recording and reproducing performance.SOLUTION: A ray 303 from a sensor lig...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	KIMURA KATSUHIKO, HASHIZUME SHIGEO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS
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