Objective lens drive and optical pickup apparatus

An objective lens drive and an optical pickup apparatus are provided which can be reduced in size. Two tilt coils and two tracking coils are disposed so that among planes defined by the respective coils, a plane perpendicular to a winding direction thereof is parallel to a reference plane defined on...

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1. Verfasser: SAKO SHINICHI
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An objective lens drive and an optical pickup apparatus are provided which can be reduced in size. Two tilt coils and two tracking coils are disposed so that among planes defined by the respective coils, a plane perpendicular to a winding direction thereof is parallel to a reference plane defined on a lens holder at a predetermined reference distance or less, and are disposed at such positions as to be symmetrical to each other about a center of gravity of the lens holder. A focus coil is disposed so that among planes defined by the focus coil, a plane perpendicular to a recording surface of an optical disk is parallel to the reference plane at a predetermined reference distance or less relative to the two tilt coils and the two tracking coils.