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    • 1. 发明授权
    • Actuator, optical scanner and image forming apparatus
    • 执行器,光学扫描器和成像设备
    • US08355191B2
    • 2013-01-15
    • US11852107
    • 2007-09-07
    • Yasushi MizoguchiMitsuhiro YodaMakiko Nakamura
    • Yasushi MizoguchiMitsuhiro YodaMakiko Nakamura
    • G02B26/08
    • G02B26/10G02B26/0858H01L41/09
    • An actuator includes a mass section; a support section; a coupling section for coupling the mass section rotatably to the support section so as to support the mass section with cantilever structure; and a pair of driving sources including a piezoelectric element for rotating the mass section, wherein the pair of driving sources are provided separately from each other with respect to a central axis of rotation of the mass section, each of the driving sources is provided slidably with respect to the coupling section or the support section, and the actuator is structured such that it causes the pair of piezoelectric elements to expand and contract in phases opposite to each other, so as to rotate at least a part of the coupling section while torsionally deforming the mass section.
    • 致动器包括质量部分; 支持部分 耦合部分,用于将质量部分可旋转地联接到支撑部分,以便以悬臂结构支撑质量部分; 以及一对驱动源,其包括用于旋转所述质量部的压电元件,其中,所述一对驱动源相对于所述质量部的中心轴线彼此分开设置,每个所述驱动源可滑动地设置 相对于联接部或支撑部,并且致动器被构造成使得它们使得该对压电元件彼此相对地膨胀和收缩,以便使扭转变形的联接部的至少一部分旋转 质量部分。
    • 8. 发明授权
    • Actuator, optical scanner, and image forming apparatus
    • 执行机构,光学扫描仪和图像形成装置
    • US08089673B2
    • 2012-01-03
    • US12546024
    • 2009-08-24
    • Yasushi MizoguchiMakiko Nakamura
    • Yasushi MizoguchiMakiko Nakamura
    • G02B26/08G02B26/10G02B26/12
    • G02B27/145G02B26/085G02B26/101G02B27/104H02K33/16H02K2201/18
    • An actuator includes: a frame; first members at each end of the frame along a first axis making the frame rotatable thereabout; second members supporting each end of a movable plate against the frame along a second axis making the movable plate rotatable thereabout; first magnets with poles interposing the first axis; a second magnet with poles interposing the first axis; a coil generating a magnetic force acting on the first and second magnets; and a voltage source applying a voltage to the coil. The first and second magnets have an angle of 30-60 degrees to the first axis, and identical magnetic pole directions. The voltage source includes first and second voltage generators generating first and second voltages of first and second frequencies, and a voltage superimposer. The movable plate is rotated about the first and second axes at the first and second frequencies by the superimposed voltages.
    • 致动器包括:框架; 沿着第一轴线的框架的每个端部处的第一构件使得框架能够在其周围旋转; 第二构件,其沿着第二轴支撑可移动板的每一端抵靠所述框架,使得所述可移动板可在其周围旋转; 第一磁铁,磁极插入第一轴; 第二磁体,其具有插入第一轴线的极; 产生作用在第一和第二磁体上的磁力的线圈; 以及向线圈施加电压的电压源。 第一和第二磁体具有与第一轴30-60度的角度和相同的磁极方向。 电压源包括产生第一和第二频率的第一和第二电压的第一和第二电压发生器以及电压叠加器。 可移动板以第一和第二频率以叠加的电压围绕第一和第二轴线旋转。