Invention Grant
- Patent Title: Optical pickup device
- Patent Title (中): 光学拾取装置
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Application No.: US12092323Application Date: 2006-11-16
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Publication No.: US08031576B2Publication Date: 2011-10-04
- Inventor: Masatoshi Yajima
- Applicant: Masatoshi Yajima
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Renner, Otto, Boisselle & Sklar, LLP
- Priority: JP2005-358017 20051212
- International Application: PCT/JP2006/322843 WO 20061116
- International Announcement: WO2007/069426 WO 20070621
- Main IPC: G11B7/00
- IPC: G11B7/00

Abstract:
An optical pickup device according to the present invention includes: a first light source that outputs a first laser beam; a second light source that outputs a second laser beam; and an optical system that irradiates an information medium with the first and second laser beams. The information medium includes: an information layer on which user data is written; and a recording layer on which visible information, which is directly visible to a user, is recorded. The optical pickup device is characterized by outputting the first laser beam in writing the user data on the information layer but outputting the second laser beam in recording the visible information on the recording layer.
Public/Granted literature
- US20090116364A1 OPTICAL PICKUP DEVICE Public/Granted day:2009-05-07
Information query
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