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    • 9. 发明申请
    • STAGE APPARATUS AND ITS DRIVING METHOD
    • 阶段装置及其驱动方法
    • US20150062552A1
    • 2015-03-05
    • US14474411
    • 2014-09-02
    • CANON KABUSHIKI KAISHA
    • Tsutomu Terao
    • G03F7/20
    • G03F7/70758G03F7/70725
    • Provided is a stage apparatus that includes a first stage configured to be movable by a predetermined stroke; a second stage configured to be movable on the first stage by a stroke shorter than the stroke of the first stage; and a controller configured to control a first driving unit, which changes the relative position of the second stage with respect to the first stage, or a second driving unit, which changes the position of the first stage, such that the relative position of the second stage with respect to the first stage is offset in the direction of movement of the first stage upon acceleration of the first stage whereas the relative position of the second stage with respect to the first stage is offset in a direction opposite to the direction of movement of the first stage upon deceleration of the first stage.
    • 提供了一种舞台装置,其包括被配置为可移动预定行程的第一级; 第二级,被配置为可以在所述第一级上移动比所述第一级的行程短的行程; 以及控制器,被配置为控制改变第二级相对于第一级的相对位置的第一驱动单元或改变第一级的位置的第二驱动单元,使得第二级 相对于第一阶段的阶段在第一阶段的加速度时在第一阶段的移动方向上偏移,而第二阶段相对于第一阶段的相对位置在与第一阶段的移动方向相反的方向上偏移 第一阶段减速的第一阶段。