ABERRATION CORRECTING APPARATUS
    1.
    发明申请
    ABERRATION CORRECTING APPARATUS 审中-公开
    异常校正装置

    公开(公告)号:US20100008196A1

    公开(公告)日:2010-01-14

    申请号:US11722186

    申请日:2005-12-19

    IPC分类号: G11B7/00 G02B27/14

    摘要: In optical disc systems, read-out is hampered because of spherical aberrations resulting from cover layer thickness variations or because discs consists of multiple layers. The aberration correcting apparatus (1) of the present invention is arranged to correct such an optical aberration. Therefore, the aberration correcting apparatus (1) comprises a fluid chamber containing a first fluid and a second fluid having different indices of refraction. The first (5) and second fluid (6) are in contact over a meniscus (7) acting as a refractive surface, wherein the shape of the meniscus (7) can be influenced by a magnetic field generated by a magnetizing coil (20).

    摘要翻译: 在光盘系统中,由于覆盖层厚度变化导致的球面像差或由于光盘由多层组成,所以读出受阻。 本发明的像差校正装置(1)被配置为校正这种光学像差。 因此,像差校正装置(1)包括含有第一流体和具有不同折射率的第二流体的流体室。 第一流体(5)和第二流体(6)在用作折射表面的弯月面(7)上接触,其中弯月面(7)的形状可以受到由磁化线圈(20)产生的磁场的影响, 。