发明名称
摘要 Disclosure is a collision preventive device (43) of a pickup device in an apparatus for performing recording or reproducing, with relative movement, to or from an optical information recording medium recorded with information on a track. The device includes a contact portion (43a) to be contacted with a surface of the optical information recording medium earlier than an objective lens (4) when the objective lens approaches the surface of the optical information recording medium, and a non-contact portion (43b) provided adjacent the contact portion not to be contacted with the surface of the optical information recording medium in an area corresponding to a path of a light spot defined by a diameter of the light spot of a light beam on the track. <IMAGE>
申请公布号 JP4141622(B2) 申请公布日期 2008.08.27
申请号 JP20000203822 申请日期 2000.07.05
申请人 发明人
分类号 G11B7/09;G11B7/12 主分类号 G11B7/09
代理机构 代理人
主权项
地址