OBJECTIVE LENS DRIVING DEVICE, METHOD FOR ASSEMBLING THE SAME, AND OPTICAL HEAD

• Main Authors: NAKAMURA, KEIJI, YABE, MITORU
• Format: Patent
• Language: English; French; Japanese
• Published: 13.07.2006
• Subjects: INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; PHYSICS

An objective lens driving device (100) is provided with a lens holder (4), which holds an objective lens (1) to face a recording medium plane and is held to freely advance and retract to and from the recording medium plane. Inside the lens holder (4), a focus coil (5) is fixed to surround an optical...