Invention Grant
- Patent Title: Optical pick-up
- Patent Title (中): 光学拾音
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Application No.: US11699024Application Date: 2007-01-29
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Publication No.: US07810111B2Publication Date: 2010-10-05
- Inventor: Katsuhiko Kimura , Jun Hato
- Applicant: Katsuhiko Kimura , Jun Hato
- 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: JP2006-215189 20060808
- Main IPC: G11B7/085
- IPC: G11B7/085

Abstract:
An optical pickup that can incline an objective lens in the same direction as that of a bend of an optical disc is provided.The optical pickup includes a lens holder that holds an objective lens, focusing coils attached to the lens holder, a yoke to which magnets are attached, and inner yokes disposed opposite to the magnets via the focusing coils, and the optical pickup is structured so that a cross-sectional area of the inner yoke disposed toward the outer periphery of the optical disc is greater than a cross-sectional area of the inner yoke disposed on the inner periphery of the optical disc.
Public/Granted literature
- US20080037377A1 Optical pick-up Public/Granted day:2008-02-14
Information query
IPC分类: