Invention Grant
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
- Patent Title: Tilt angle adjustment method for objective lens and optical information recording/reproducing apparatus
- Patent Title (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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Application No.: US13096337Application Date: 2011-04-28
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Publication No.: US08570849B2Publication Date: 2013-10-29
- Inventor: Satoshi Inoue , Shuichi Takeuchi
- Applicant: Satoshi Inoue , Shuichi Takeuchi
- Applicant Address: JP Tokyo
- Assignee: Hoya Corporation
- Current Assignee: Hoya Corporation
- Current Assignee Address: JP Tokyo
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2010-110256 20100512
- Main IPC: G11B7/00
- IPC: G11B7/00
Abstract:
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
Public/Granted literature
- US20110280115A1 TILT ANGLE ADJUSTMENT METHOD FOR OBJECTIVE LENS AND OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS Public/Granted day:2011-11-17
Information query
IPC分类:
