Invention Grant
US07881165B2 Optical scanning device with compact spherical aberration compensation
有权
光学扫描装置具有紧凑的球面像差补偿
- Patent Title: Optical scanning device with compact spherical aberration compensation
- Patent Title (中): 光学扫描装置具有紧凑的球面像差补偿
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Application No.: US11575139Application Date: 2005-09-12
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Publication No.: US07881165B2Publication Date: 2011-02-01
- Inventor: Johannes Joseph Hubertina Barbara Schleipen
- Applicant: Johannes Joseph Hubertina Barbara Schleipen
- Applicant Address: NL Eindhoven
- Assignee: Koninklijke Philips Electronics N.V.
- Current Assignee: Koninklijke Philips Electronics N.V.
- Current Assignee Address: NL Eindhoven
- Priority: EP04300605 20040916
- International Application: PCT/IB2005/052979 WO 20050912
- International Announcement: WO2006/030371 WO 20060323
- Main IPC: G11B7/00
- IPC: G11B7/00
Abstract:
The invention relates to an optical scanning device for scanning at least one information layer (101, 102) in an information carrier (10), comprising means (1) for generating a radiation beam (11) intended to be focused on the information layer (101, 102). A spherical aberration (SA) compensation module (40) is arranged in the light path of the radiation beam (11) and comprises a SA compensation means (41) and a reflective means (42) for folding the light path of the radiation beam (11).
Public/Granted literature
- US20080316901A1 Optical Scanning Device Public/Granted day:2008-12-25
Information query
IPC分类:
