发明授权
- 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
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申请号: US12244162申请日: 2008-10-02
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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
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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