Invention Grant
- Patent Title: Optical pickup device
- Patent Title (中): 光学拾取装置
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Application No.: US13260969Application Date: 2009-03-30
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Publication No.: US08422352B2Publication Date: 2013-04-16
- Inventor: Norio Matsuda , Yoshitaka Ono
- Applicant: Norio Matsuda , Yoshitaka Ono
- Applicant Address: JP Kanagawa
- Assignee: Pioneer Corporation
- Current Assignee: Pioneer Corporation
- Current Assignee Address: JP Kanagawa
- Agency: Young & Thompson
- International Application: PCT/JP2009/056525 WO 20090330
- International Announcement: WO2010/116455 WO 20101014
- Main IPC: G11B7/00
- IPC: G11B7/00

Abstract:
An optical pickup device, which can effectively prevent occurrence of trouble in recording and reproducing of information due to the fact that an objective lens for each optical beam is contaminated while not adding unnecessary parts and while reducing a cost, is provided. An optical pickup device (P1) which performs the recording or reproducing of information in or from an optical disc (13) by using an optical beam (B) or (D), comprises: objective lenses (11) and (12) on which cleaning films which are activated by radiation of the optical beam (B) and clean their surfaces are formed in an optical path, and a control unit (15) for setting an optical path of the optical beam (B) in such a way that the optical beam (B) reflected by the optical disc (13) is radiated on the objective lens (12).
Public/Granted literature
- US20120020197A1 OPTICAL PICKUP DEVICE Public/Granted day:2012-01-26
Information query
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