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    • 3. 发明申请
    • LENS UNIT AND IMAGE CAPTURING APPARATUS
    • 镜头单元和图像捕获设备
    • US20120194929A1
    • 2012-08-02
    • US13308916
    • 2011-12-01
    • Hosei NAKAHIRAToshihisa TANAKAYoichi YAMAMOTO
    • Hosei NAKAHIRAToshihisa TANAKAYoichi YAMAMOTO
    • G02B7/04
    • G02B7/04G02B7/08
    • Provided is a lens unit comprising an actuator that is self-supporting when at a stopped position. The lens unit comprises a holding frame that holds a lens; a movement actuator that moves the holding frame, which is connected to a moving member that moves linearly relative to a stator, when drive force is generated, and does not prevent the moving member from moving relative to the stator when the moving member is stopped; and a braking actuator that stops the moving member from moving relative to the stator, using frictional force, when the movement actuator is not generating the drive force, and decreases the frictional force when the movement actuator generates the drive force.
    • 提供了一种透镜单元,包括当处于停止位置时是自支撑的致动器。 透镜单元包括保持透镜的保持框架; 移动致动器,当驱动力产生时,移动所述保持框架,所述保持框架连接到相对于定子线性移动的移动构件,并且当所述移动构件停止时不阻止所述移动构件相对于所述定子移动; 以及当运动致动器不产生驱动力时使用摩擦力使运动部件相对于定子运动的制动致动器,并且当运动致动器产生驱动力时减小摩擦力。
    • 4. 发明申请
    • LINEAR MOTOR AND LENS UNIT
    • 线性电机和镜头单元
    • US20120087022A1
    • 2012-04-12
    • US13331413
    • 2011-12-20
    • Toshihisa TANAKAEiji MATSUKAWA
    • Toshihisa TANAKAEiji MATSUKAWA
    • H02K41/035G02B7/09
    • G02B7/08G03B3/10G03B17/14G03B19/12H02K11/21H02K41/03
    • Provided is a linear motor comprising a magnet including a first region polarized to have a magnetic pattern for driving and a second region polarized to have a magnetic pattern for position detection, the first and second regions being arranged linearly in a direction of the driving; a drive coil that is provided opposite the first region and generates a drive force exerted on the magnet in the direction of the driving; a magnetic sensor arranged opposite the second region; and a base member that supports the magnet, the drive coil, and the magnetic sensor such that the magnet can be moved relative to the drive coil and the magnetic sensor in the driving direction.
    • 本发明提供一种线性电动机,其特征在于,包括:磁体,其包括偏振地具有用于驱动的​​磁性图案的第一区域和偏振地具有用于位置检测的磁图案的第二区域,所述第一和第二区域沿所述驱动方向线性排列; 驱动线圈,其设置成与所述第一区域相对,并且在所述驱动方向上产生施加在所述磁体上的驱动力; 与第二区域相对布置的磁传感器; 以及支撑磁体,驱动线圈和磁性传感器的基部构件,使得磁体可以相对于驱动线圈和磁性传感器沿驱动方向移动。