发明申请
US20070237053A1 Aberration correcting unit, optical pickup device, information reproducing apparatus, and aberration correcting program
审中-公开
畸变校正单元,光学拾取装置,信息再现装置和像差校正程序
- 专利标题: Aberration correcting unit, optical pickup device, information reproducing apparatus, and aberration correcting program
- 专利标题(中): 畸变校正单元,光学拾取装置,信息再现装置和像差校正程序
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申请号: US11730870申请日: 2007-04-04
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公开(公告)号: US20070237053A1公开(公告)日: 2007-10-11
- 发明人: Tetsuya Shihara , Shinya Shimizu , Tsuyoshi Eiza , Kenji Nagashima
- 申请人: Tetsuya Shihara , Shinya Shimizu , Tsuyoshi Eiza , Kenji Nagashima
- 专利权人: Funai Electric Co., Ltd.
- 当前专利权人: Funai Electric Co., Ltd.
- 优先权: JP2006-106702 20060407
- 主分类号: G11B7/00
- IPC分类号: G11B7/00
摘要:
A control portion of aberration correcting unit includes: a potential calculating block that determines a potential to be applied to each of the divided electrodes of the first transparent electrode and the second transparent electrode; a change quantity calculating block that determines a potential change quantity that is a difference between the determined potential and a potential that is already applied with respect to each of the divided electrodes of the first transparent electrode and the second transparent electrode, and a potential changing block changes the potentials to be applied to the divided electrodes of the first transparent electrode and the second transparent electrode sequentially to the potentials determined by the potential calculating block based on the potential change quantity.
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