发明授权
US07796490B2 Optical pickup and optical information processing apparatus 有权
光学拾取和光学信息处理设备

  • 专利标题: Optical pickup and optical information processing apparatus
  • 专利标题(中): 光学拾取和光学信息处理设备
  • 申请号: US12244162
    申请日: 2008-10-02
  • 公开(公告)号: US07796490B2
    公开(公告)日: 2010-09-14
  • 发明人: Hideaki Hirai
  • 申请人: Hideaki Hirai
  • 申请人地址: JP Tokyo
  • 专利权人: Ricoh Company, Ltd.
  • 当前专利权人: Ricoh Company, Ltd.
  • 当前专利权人地址: JP Tokyo
  • 代理机构: Dickstein Shapiro LLP
  • 优先权: JP2004-159641 20040528
  • 主分类号: G11B7/00
  • IPC分类号: G11B7/00
Optical pickup and optical information processing apparatus
摘要:
An optical pickup performing recording, reproduction and deletion of information on or from an optical recording medium. The pickup includes light sources for information recording media using a blue wavelength beam, information recording media of DVD family and information recording media of CD family. A single object lens may be used to condense light from any of the light sources. A single aberration correction device may be disposed in a common light path between each of the light sources and the object lens.
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