发明名称 OPTICAL PICKUP
摘要 An optical pickup which excels in assembly workability and which can increase the drive force generated in a focusing coil is provided. The optical pickup has an objective lens, a lens holder holding the objective lens, and a first and a second focusing coil wound around the lens holder. The first focusing coil includes an upper part wound about a central axis extending in parallel with an optical axis of the objective lens and a lower part connected to the upper part. The second focusing coil includes an upper part wound, in a wiring system separate from the first focusing coil, about a central axis extending in parallel with the optical axis of the objective lens and a lower part connected to the upper part.
申请公布号 US2013188467(A1) 申请公布日期 2013.07.25
申请号 US201313733937 申请日期 2013.01.04
申请人 HITACHI MEDIA ELECTRONICS CO., LTD.;HITACHI MEDIA ELECTRONICS CO., LTD. 发明人 KIMURA KATSUHIKO;SAITO HIDENAO;HATO JUN
分类号 G11B7/1374 主分类号 G11B7/1374
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