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公开(公告)号：US20120177354A1
公开(公告)日：2012-07-12
申请号：US13311008
申请日：2011-12-05
CPC分类号： H02N2/062 , G02B27/1006 , G03B3/10 , G03B2205/0061 , H02N2/004 , H02N2/026 , H02N2/142 , H02N2/163
摘要： Provided is a lens barrel includes a vibration actuator that drives a focusing lens which brings a subject image into focus; an amplifying section that applies a pair of driving signals amplified to the vibration actuator; a phase shifting section that changes a phase difference between the pair of the driving signals; and a control section that, when a signal for giving an instruction to drive the vibration actuator is input, executes a first processing of causing the phase shifting section to perform an operation which periodically changes the phase difference of the pair of the driving signals.
摘要翻译： 提供一种镜筒，包括驱动聚焦透镜的振动致动器，其使被摄体图像成为焦点; 放大部，其对放大到所述振动促动器的一对驱动信号进行施加; 相移部，其改变所述一对所述驱动信号之间的相位差; 以及控制部，当输入用于提供驱动振动致动器的指令的信号时，执行使相移部执行周期性地改变所述一对驱动信号的相位差的操作的第一处理。
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公开(公告)号：US20110280559A1
公开(公告)日：2011-11-17
申请号：US13016312
申请日：2011-01-28
CPC分类号： H02N2/163 , G02B7/08 , G02B7/102 , G03B2205/0053
摘要： A vibrational wave motor which can realize a suitable drive performance and can be driven quietly.A vibrational wave motor having: an electromechanical-conversion element excited by a driving signal; a vibrating element joined with the electromechanical-conversion element, and having a drive surface where a progressive vibrational wave is generated by the excitation; a relative motion member having a sliding surface pressure-contacting the drive surface of the vibrating element, and which is driven by the wave; and a driving device for providing the driving signal to the electromechanical-conversion element, wherein: the driving device provides the driving signal to the electromechanical-conversion element, the driving signal generating the wave satisfying a-value/λ≦0.00025 in the drive surface, where a vibration amplitude generated in the drive surface of the vibrating element is a-value, and a wavelength generated in the drive surface of the vibrating element is λ.
摘要翻译： 振动波马达可以实现合适的驱动性能，可以静音驱动。 一种振动波马达，具有：由驱动信号激励的机电转换元件; 与机电转换元件连接的振动元件，具有通过激励产生渐进式振动波的驱动面; 相对运动构件，其具有与所述振动元件的驱动表面压力接触并由所述波驱动的滑动表面; 以及用于向机电转换元件提供驱动信号的驱动装置，其中：驱动装置向机电转换元件提供驱动信号，产生满足a值/λ＆ 其中在振动元件的驱动表面中产生的振动振幅为a值，并且在振动元件的驱动表面中产生的波长为λ。
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公开(公告)号：US20120224274A1
公开(公告)日：2012-09-06
申请号：US13227971
申请日：2011-09-08
申请人： Takatoshi ASHIZAWA
发明人： Takatoshi ASHIZAWA
IPC分类号： G02B7/04
CPC分类号： G02B7/026 , G02B7/08 , G03B3/10 , G03B2205/0046 , G03B2205/0061 , H02N2/004 , H02N2/026 , H04N5/23209 , H04N5/23212
摘要： A lens barrel includes a linear vibration actuator and a lens ring. The linear vibration actuator includes a vibrating element, relative motion member and pressurizing mechanism. The vibrating element generates a driving force at a driving face in parallel with an optical axis by oscillation of an electromechanical conversion element. The relative motion member is in pressure contact with the driving face and linearly moves in parallel with the optical axis with respect to the vibrating element. The pressurizing mechanism applies a pressure force between the driving face and the relative motion member. The lens ring holds a photographic lens and is linearly moved by the relative motion member in parallel with the optical axis. The linear vibration actuator includes a first linear guide receiving the pressure force applied to the relative motion member, and the lens ring includes a second linear guide guiding the lens ring to linearly move.
摘要翻译： 镜筒包括线性振动致动器和透镜环。 线性振动致动器包括振动元件，相对运动元件和加压机构。 该振动元件通过机电转换元件的振荡而在与光轴平行的驱动面产生驱动力。 相对运动构件与驱动面压力接触并且相对于振动元件与光轴平行地线性移动。 加压机构在驱动面和相对运动部件之间施加压力。 透镜环保持摄影镜头，并且通过相对运动构件与光轴平行地线性移动。 线性振动致动器包括接收施加到相对运动构件的压力的第一线性引导件，并且透镜环包括引导透镜环线性移动的第二线性引导件。
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公开(公告)号：US20120139390A1
公开(公告)日：2012-06-07
申请号：US13310167
申请日：2011-12-02
申请人： Takatoshi ASHIZAWA
发明人： Takatoshi ASHIZAWA
IPC分类号： H02N2/00
摘要： A vibrational wave motor includes a motor main body and pressing member. The motor main body includes an electromechanical conversion element, elastic body and relative motion member. The elastic body joined to the electromechanical conversion element generates an oscillating wave. The relative motion member in pressure contact with the elastic body is rotationally driven relative to the elastic body. The pressing member generates a pressing force between the elastic body and relative motion member. The pressing member includes a pressure applying portion, extension portion and pressing main body. The pressure applying portion presses one of the elastic body and the relative motion member towards the other, along a rotation axis. The extension portion extends outward from the pressure applying portion in a radial direction centered about the rotation axis. The pressing main body is disposed more outward in the radial direction than the motor main body at the extension portion.
摘要翻译： 振动波马达包括马达主体和按压部件。 电动机主体包括机电转换元件，弹性体和相对运动元件。 连接到机电转换元件的弹性体产生振荡波。 与弹性体压力接触的相对运动构件相对于弹性体旋转驱动。 按压构件在弹性体和相对运动构件之间产生按压力。 按压构件包括压力施加部分，延伸部分和按压主体。 压力施加部分沿着旋转轴将另一个弹性体和相对运动构件中的一个按压。 延伸部分在压力施加部分的外侧以围绕旋转轴线为中心的径向向外延伸。 按压主体在延伸部分沿径向比电动机主体更向外设置。
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