发明申请
- 专利标题: OPTICAL PICKUP
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申请号: US13079872申请日: 2011-04-05
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公开(公告)号: US20110247021A1公开(公告)日: 2011-10-06
- 发明人: Souichirou YAMADA , Jun Hato , Katsuhiko Kimura , Yoshitaka Kusano
- 申请人: Souichirou YAMADA , Jun Hato , Katsuhiko Kimura , Yoshitaka Kusano
- 优先权: JP2010-086995 20100405
- 主分类号: G11B7/135
- IPC分类号: G11B7/135
摘要:
In an optical pickup for use in an optical disc device, wire rods are wound directly around a lens-coil holder to make tracking coils and focus coils. The lens-coil holder is divided into three holders, one of which holds an optical lens thereon and has on its sides wire-winding protrusions for wiring wire rods therearound to make tracking coils. The remaining holders have focus coils that are wound therearound. Alternatively, the lens-coil holder is divided into two holders, one of which has on its sides wire-winding protrusions for wiring wire rods therearound to make tracking coils. The remaining holder holds an optical lens thereon and has focus coils that are wound therearound. The lens-coil holder has a cavity for letting pass through a laser beam emitted in parallel to an optical disc surface.
公开/授权文献
- US08422343B2 Optical pickup 公开/授权日:2013-04-16
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