发明名称 Optical pickup and optical disk apparatus
摘要 An optical pickup includes a lens holder holding an objective lens for converging a light beam on a signal recording layer of an optical disk; elastic support members supporting the lens holder such that the lens holder can freely move in three driving directions, i.e., a tracking direction, a focusing direction, and a tilting direction; a pair of coil units attached to two sides of the lens holder, the two sides being spaced in a tangential direction orthogonal to the focusing direction and tracking direction; and a pair of magnets arranged to face the corresponding coil units. Each coil unit includes a tracking coil, a focusing coil, and a tilting coil for driving the lens holder in the three driving directions. The focusing coil and the tilting coil are formed by winding a focusing conductor of the focusing coil and a tilting conductor of the tilting coil together in parallel.
申请公布号 US2007253297(A1) 申请公布日期 2007.11.01
申请号 US20070788118 申请日期 2007.04.19
申请人 SONY CORPORATION 发明人 OHKUMA HIDEO;HORIGUCHI MUNEYUKI
分类号 G11B7/00 主分类号 G11B7/00
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