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    • 37. 发明申请
    • RECORDING AND REPRODUCING APPARATUS
    • 记录和再现设备
    • US20100054107A1
    • 2010-03-04
    • US12550366
    • 2009-08-29
    • Shohei InoueSyougo HorinouchiHideaki HorioTaiichi Mori
    • Shohei InoueSyougo HorinouchiHideaki HorioTaiichi Mori
    • G11B7/135
    • G11B7/083G11B7/0065G11B7/1381G11B2007/0013
    • The recording and reproducing apparatus has rotary drive unit (a motor) that rotationally drives a multilayer recordable recording medium 1; a reference-light-side recording and reproducing lens 6 and a recording-light-side recording and reproducing lens 7 that are disposed oppositely to the recording medium 1 which is rotationally driven by the rotary drive unit, an address detection lens 5 that is disposed opposite the recording medium 1 and that is provided separately from the recording and reproducing lenses 6 and 7; a light source 9 for recording and reproducing purpose that supplies recording reproduction light to the recording and reproducing lenses 6 and 7; and the address light source 9 that supplies address light to the address detection lens 5. The apparatus is configured in such a way that light whose center axis portion is optically hollow is supplied from the reference-light-side recording and reproducing lens 6 to the recording medium 1 during reproducing operation.
    • 记录和再现装置具有旋转地驱动多层记录介质1的旋转驱动单元(马达); 与由旋转驱动单元旋转驱动的记录介质1相对设置的基准光侧记录和再现透镜6和记录光侧记录和再现透镜7,设置的地址检测透镜5 与记录介质1相对并且与记录和再现透镜6和7分开设置; 用于将记录再现光提供给记录和再现透镜6和7的用于记录和再现目的的光源9; 以及将地址光源9提供给地址检测透镜5的地址光源9.该装置被配置为使得中心轴部分是光学中空的光从参考光侧记录和再现透镜6提供给 记录媒体1。