发明授权
US08570849B2 Tilt angle adjustment method for objective lens and optical information recording/reproducing apparatus
有权
用于物镜和光学信息记录/再现装置的倾斜角度调节方法
- 专利标题: Tilt angle adjustment method for objective lens and optical information recording/reproducing apparatus
- 专利标题(中): 用于物镜和光学信息记录/再现装置的倾斜角度调节方法
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申请号: US13096337申请日: 2011-04-28
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公开(公告)号: US08570849B2公开(公告)日: 2013-10-29
- 发明人: Satoshi Inoue , Shuichi Takeuchi
- 申请人: Satoshi Inoue , Shuichi Takeuchi
- 申请人地址: JP Tokyo
- 专利权人: Hoya Corporation
- 当前专利权人: Hoya Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Greenblum & Bernstein, P.L.C.
- 优先权: JP2010-110256 20100512
- 主分类号: G11B7/00
- IPC分类号: G11B7/00
摘要:
A method for adjusting a tilt angle of an objective lens with respect to one of a multilayer optical disc having a plurality of recording layers and an optical axis of an optical information recording/reproducing apparatus, wherein a use wavelength λ and a numerical aperture NA are defined by conditions: 390
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