Invention Grant
- Patent Title: Optical pickup and optical disc apparatus using the same
- Patent Title (中): 光拾取器和使用其的光盘装置
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Application No.: US12132859Application Date: 2008-06-04
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Publication No.: US08064320B2Publication Date: 2011-11-22
- Inventor: Mikinori Matsuda , Tsuguhiro Abe
- Applicant: Mikinori Matsuda , Tsuguhiro Abe
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2007-188646 20070719
- Main IPC: G11B7/135
- IPC: G11B7/135

Abstract:
An optical pickup includes first and second objective lenses; a first raising optical element that reflects an optical beam from a first direction within a plane substantially orthogonal to an optical axis of the first objective lens, thereby the optical beam being incident on the first objective lens; and a second raising optical element that reflects an optical beam from a second direction at an angle to the first direction within a plane substantially orthogonal to the optical axis of the second objective lens, thereby the optical beam being incident on the second objective lens. At least one lateral surface of at least one of the first and second raising optical elements is at an angle of 90 degrees or smaller to a reflection surface thereof. The lateral surface of the one raising optical element is arranged to face a lateral surface of the other raising optical element.
Public/Granted literature
- US20090022040A1 OPTICAL PICKUP AND OPTICAL DISC APPARATUS USING THE SAME Public/Granted day:2009-01-22
Information query
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