OBJECTIVE LENS DRIVE DEVICE AND OPTICAL PICKUP DEVICE

OBJECTIVE LENS DRIVE DEVICE AND OPTICAL PICKUP DEVICE

PROBLEM TO BE SOLVED: To provide an objective lens drive device that can stably drive a plurality of objective lenses, and to provide an optical pickup device employing the objective lens drive device.SOLUTION: An objective lens actuator 20 comprises: a lens unit 20 that holds objective lenses 113 a...

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Hauptverfasser: MORIMOTO SHUNICHI, IMAI KENICHI
Format: Patent
Sprache:eng
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INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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creator MORIMOTO SHUNICHI
IMAI KENICHI
description PROBLEM TO BE SOLVED: To provide an objective lens drive device that can stably drive a plurality of objective lenses, and to provide an optical pickup device employing the objective lens drive device.SOLUTION: An objective lens actuator 20 comprises: a lens unit 20 that holds objective lenses 113 and 114; circuit substrates 24 and 25 that are mounted to the lens unit 20; suspension wires 43 and 44 that support the lens unit 20; and solders 24d and 25d that connect the suspension wires 43 and 44 and the circuit substrates 24 and 25 to each other. The solders 24d and 25d are provided in the circuit substrates 24 and 25, respectively such that attachment positions of the solders 24d and 25d and a center-of-gravity G0 of the lens unit 20 align with each other in an arrangement direction of the objective lenses 113 and 114.
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subjects INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
title OBJECTIVE LENS DRIVE DEVICE AND OPTICAL PICKUP DEVICE
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