OPTICAL PICKUP ACTUATOR
    1.
    发明公开
    OPTICAL PICKUP ACTUATOR 有权
    光学拾取传动器

    公开(公告)号:EP2100298A1

    公开(公告)日:2009-09-16

    申请号:EP07793626.8

    申请日:2007-08-23

    IPC分类号: G11B7/08

    摘要: An optical pickup actuator includes a blade, on which an objective lens is mounted, arranged so as to flexibly move by a plurality of suspension wires; magnets facing each other in a tangential direction, wherein the blade is between the magnets, first coils arranged in pairs on two sides of the blade in the tangential direction for focus driving and radial tilt driving, a pair of second coils arranged on two sides of the blade in the tangential direction for track driving, and a pair of third coils arranged on two sides of the blade in a tracking direction for tilt driving of the tangential direction. The optical pickup actuator is driven in four axes.

    OPTICAL PICKUP ACTUATOR
    2.
    发明授权
    OPTICAL PICKUP ACTUATOR 有权
    光学拾取传动器

    公开(公告)号:EP2100298B1

    公开(公告)日:2011-05-18

    申请号:EP07793626.8

    申请日:2007-08-23

    IPC分类号: G11B7/08

    摘要: An optical pickup actuator includes a blade, on which an objective lens is mounted, arranged so as to flexibly move by a plurality of suspension wires; magnets facing each other in a tangential direction, wherein the blade is between the magnets, first coils arranged in pairs on two sides of the blade in the tangential direction for focus driving and radial tilt driving, a pair of second coils arranged on two sides of the blade in the tangential direction for track driving, and a pair of third coils arranged on two sides of the blade in a tracking direction for tilt driving of the tangential direction. The optical pickup actuator is driven in four axes.

    A COMPATIBLE OPTICAL PICKUP AND AN OPTICAL RECORDING AND/OR REPRODUCING APPARATUS EMPLOYING A COMPATIBLE OPTICAL PICKUP
    3.
    发明公开
    A COMPATIBLE OPTICAL PICKUP AND AN OPTICAL RECORDING AND/OR REPRODUCING APPARATUS EMPLOYING A COMPATIBLE OPTICAL PICKUP 审中-公开
    可兼容的光学拾取装置和使用兼容的光学拾取装置的光学记录和/或再现装置

    公开(公告)号:EP1920435A1

    公开(公告)日:2008-05-14

    申请号:EP06798570.5

    申请日:2006-08-29

    IPC分类号: G11B7/135

    摘要: A compatible optical pickup including an active compensation device to actively switch an angle of incidence of the light on the objective lens when either a third information storage medium that has a different format than that of the first and second information storage media, or the second information storage medium is adopted for use in a data recording/reproducing operation. The active compensation device includes a plurality of transparent substrates, and at least one material layer, interposed between the plurality of substrates, having a refractive index which is actively switched according to an applied voltage. A holographic pattern, formed adjacent to the material layer on a surface of at least one of the transparent substrates, changes a divergence angle of the light by diffracting or transmitting without diffraction the incident light according to change of the refractive index of the material layer. The voltage applied to the material layer is adjusted according to the applied information storage medium that is adopted for the use in the data recording/reproducing operation.

    摘要翻译: 一种兼容型光学拾取器,包括主动补偿装置,用于在具有与第一和第二信息存储介质不同的格式的第三信息存储介质或者第二信息存储介质中的任一种时激活切换物镜上的光的入射角, 存储介质被采用用于数据记录/再现操作。 有源补偿装置包括多个透明基板和至少一个介于多个基板之间的材料层,该材料层具有根据施加的电压有效地切换的折射率。 在至少一个透明基板的表面上与材料层相邻地形成的全息图案通过衍射或透射入射光而不衍射根据材料层的折射率的变化而改变光的发散角。 施加到材料层的电压根据在数据记录/再现操作中使用的所采用的信息存储介质进行调整。