Optical information recording reproduction apparatus and optical information recording reproduction method

An optical information recording reproduction apparatus includes: a first light beam source; a second light beam source emitting a beam with a wavelength shorter than that of the first light beam source; and an object lens condensing the beams from the first and second light beam sources to an optic...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SAKAMOTO TETSUHIRO, YAMATSU HISAYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS
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