OPTICAL HEAD

PURPOSE:To reduce the length of an optical head in the optical axis direction of an objective by shifting together the objective, the semiconductor laser of a light source and an optical system including a photodetector. CONSTITUTION:An optical head contains a semiconductor laser 21 which forms a li...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	NODA TOYOKAZU, OOKI YUTAKA, TOYODA KIYOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING HANDLING RECORD CARRIERS INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS PRESENTATION OF DATA RECOGNITION OF DATA RECORD CARRIERS
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