发明授权
- 专利标题: Optical information processing method and optical information processing apparatus
- 专利标题(中): 光信息处理方法和光信息处理装置
-
申请号: US13128031申请日: 2009-12-07
-
公开(公告)号: US08638646B2公开(公告)日: 2014-01-28
- 发明人: Yusuke Kanatake , Tomo Kishigami , Yoshihiro Kiyose , Nobuo Takeshita
- 申请人: Yusuke Kanatake , Tomo Kishigami , Yoshihiro Kiyose , Nobuo Takeshita
- 申请人地址: JP Tokyo
- 专利权人: Mitsubishi Electric Corporation
- 当前专利权人: Mitsubishi Electric Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP
- 优先权: JP2008-314348 20081210; JP2009-230314 20091002
- 国际申请: PCT/JP2009/006670 WO 20091207
- 国际公布: WO2010/067575 WO 20100617
- 主分类号: G11B7/00
- IPC分类号: G11B7/00
摘要:
An optical information processing method and apparatus performs a light irradiating and receiving step, a signal processing step, and an adjusting step of a spherical aberration and a focus offset on the basis of shift amount of first and second control devices and a performance evaluation value. The performance evaluation values for first, second, third and fourth points in an x and y coordinate system are detected, in which an x-coordinate is one of the shift amount of the first control device and the shift amount of the second control device and a y-coordinate is the other, the first point, second and third points having the same y-coordinate and different x-coordinates with each other, the fourth point being provided on a first straight line passing through the first point and being different from the first point.
公开/授权文献
信息查询
IPC分类: