Invention Grant
- Patent Title: Optical pickup and method for manufacturing the same
- Patent Title (中): 光拾取器及其制造方法
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Application No.: US12018463Application Date: 2008-01-23
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Publication No.: US08009523B2Publication Date: 2011-08-30
- Inventor: Katsuhiko Kimura , Yoshihiro Satou , Junichi Senga
- Applicant: Katsuhiko Kimura , Yoshihiro Satou , Junichi Senga
- Applicant Address: JP Iwate-ken
- Assignee: Hitachi Media Electronics Co., Ltd.
- Current Assignee: Hitachi Media Electronics Co., Ltd.
- Current Assignee Address: JP Iwate-ken
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2007-103393 20070411
- Main IPC: G11B7/00
- IPC: G11B7/00
Abstract:
To increase the speed of operations and improve vibration properties by rotating holders to wind coils in objective lens driving means of an optical pickup. In an optical pickup wherein a tracking coil and two focusing coils are wound on the same surface of a coil holder, the coil holder includes a tracking coil holder and two focusing coil holders, and each of the tracking coil holder and two focusing coil holders has a hole passing through the center of each coil.
Public/Granted literature
- US20080253239A1 OPTICAL PICKUP AND METHOD FOR MANUFACTURING THE SAME Public/Granted day:2008-10-16
Information query
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