Objective lens drive device and coil bobbin thereof

An objective lens drive device used in a an optical recording and/or reproducing apparatus includes a lens holder, a plurality of elastic supporting members and a coil bobbin. The lens holder holds an objective lens. Each one end portion of the plurality of elastic supporting members are fixed to th...

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Bibliographic Details
Main Authors TOMIYAMA; TAKAMICHI, SHIBATA; KEIICHI, MITSUMORI; KOJI
Format Patent
LanguageEnglish
Published 09.07.1996
Edition6
Subjects
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Summary:An objective lens drive device used in a an optical recording and/or reproducing apparatus includes a lens holder, a plurality of elastic supporting members and a coil bobbin. The lens holder holds an objective lens. Each one end portion of the plurality of elastic supporting members are fixed to the lens holder and each other end portion of the elastic supporting members are fixed to a fixed portion. The plurality of elastic supporting members movably support the lens holder in a parallel direction of the objective lens and a horizontal direction ortjogonal to the optical axis of the objective lens. A focussing coil is wound around the coil bobbin. At least one tracking coil is attached to the focussing coil. The coil bobbin is provided with a plurality of terminals to project therefrom. The terminals are wound with the end portions of the focussing coils and the end portions of the tracking coil.
Bibliography:Application Number: US19940357711