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    • 4. 发明授权
    • Optical information read/write apparatus
    • 光信息读写装置
    • US5144617A
    • 1992-09-01
    • US610837
    • 1990-11-08
    • Hiroshi GotohIkuo MaedaSyuichi Honda
    • Hiroshi GotohIkuo MaedaSyuichi Honda
    • G11B7/085G11B7/12
    • G11B7/12G11B7/08582
    • An optical information read/write apparatus that comprises a casing for installing an optical disk therein and a first movable unit having an objective lens for converging an optical beam on the disk. The lens center moves on a radial direction line originated from the disk center. A first fixed unit is disposed aside the disk in the casing. The fixed unit has an optical source for emitting the beam and constitutes a reading optical pickup in conjunction with the first movable unit. A second movable unit is disposed in the same half side of the disk as the first movable unit. The second movable unit has an objective lens for converging an optical beam on the disk. The lens center of the second unit moves on a radial direction line originated from the disk center. A second fixed unit is disposed aside the disk. The second fixed unit has an optical source for emitting the beam of the second movable unit and constitutes a writing optical pickup in conjunction with the second movable unit.
    • 一种光信息读/写装置,包括用于在其中安装光盘的壳体和具有用于将光束会聚在盘上的物镜的第一可移动单元。 透镜中心在从盘中心起的径向线上移动。 将第一固定单元放置在壳体中的盘旁边。 固定单元具有用于发射光束的光源,并与第一可移动单元一起构成读取光学拾取器。 第二可移动单元设置在与第一可移动单元相同的盘的半侧。 第二可移动单元具有用于将光束会聚在盘上的物镜。 第二单元的透镜中心在从盘中心起的径向线上移动。 第二固定单元被放置在盘的旁边。 第二固定单元具有用于发射第二可移动单元的光束的光源,并且与第二可移动单元结合构成写入光学拾取器。