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公开(公告)号：US09184677B2
公开(公告)日：2015-11-10
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：US08513857B2
公开(公告)日：2013-08-20
申请号：US13016312
申请日：2011-01-28
IPC分类号： H02N2/16
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. The vibrational wave motor includes: 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。 振动波马达包括：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; 以及用于将驱动信号提供给机电转换元件的驱动装置，其中：驱动装置向机电转换元件提供驱动信号，驱动信号产生在驱动表面中满足a值= 1 / 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：US08035906B2
公开(公告)日：2011-10-11
申请号：US12448368
申请日：2007-12-20
申请人： Takatoshi Ashizawa
发明人： Takatoshi Ashizawa
摘要： A vibration actuator comprising: an electromechanical conversion element excited by a driving signal; an elastic body to which the conversion element is jointed and on a driving face of which vibration waves are generated by the excitation; and a relative moving element pressure-contacted with the driving face of the elastic body, and which is driven by the vibration waves, and wherein: a joining face of the conversion element which is joined to the elastic body has an electrode portion, and a joining strength improving portion which improves the joining strength between the elastic body and the conversion element; and the electrode portion is formed on at least one of two edge portions of the joining face, through the edge portions, an imaginary straight line pass, the line pass the improving portion and is orthogonal to a relative moving direction of the elastic body and the moving element.
摘要翻译： 一种振动致动器，包括：由驱动信号激励的机电转换元件; 连接有转换元件的弹性体和通过激励产生振动波的驱动面; 以及与所述弹性体的驱动面压接并由所述振动波驱动的相对移动体，并且其中：所述转换元件与所述弹性体接合的接合面具有电极部， 接合强度提高部，其提高弹性体与转换元件的接合强度; 并且所述电极部分通过所述边缘部分形成在所述接合面的两个边缘部分中的至少一个上，假想直线通过，所述线通过所述改善部分并且与所述弹性体的相对移动方向正交， 移动元素
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公开(公告)号：US08035275B2
公开(公告)日：2011-10-11
申请号：US12224947
申请日：2007-03-09
申请人： Takatoshi Ashizawa
发明人： Takatoshi Ashizawa
IPC分类号： H02N2/00
摘要： A vibration actuator by which stable drive can be obtained, a lens barrel, a camera system and a vibrating element are provided. In first vibration mode and second vibration mode, vibrating elements of the vibration actuator can vibrate. Resonance frequency of the second vibration mode, which is different from the first vibration mode used for driving a relatively moving member, is prevented from being same as the frequency of the higher harmonic of a driving signal.
摘要翻译： 提供可获得稳定驱动的振动致动器，镜筒，照相机系统和振动元件。 在第一振动模式和第二振动模式中，振动致动器的振动元件可以振动。 防止与用于驱动相对移动部件的第一振动模式不同的第二振动模式的共振频率与驱动信号的高次谐波的频率相同。
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公开(公告)号：US20110096423A1
公开(公告)日：2011-04-28
申请号：US12997670
申请日：2009-06-10
申请人： Takatoshi Ashizawa
发明人： Takatoshi Ashizawa
CPC分类号： G02B7/08 , G02B7/102 , H01L41/0913 , H02N2/021
摘要： A piezoelectric actuator having reduced sizes, a lens barrel and an optical device. A piezoelectric actuator is provided with: a first actuator including first piezoelectric elements to be displaced in a first direction; a second actuator, which includes second piezoelectric elements to be displaced in a second direction intersecting with the first direction, and is arranged in a direction intersecting with the first direction with respect to the first actuator; and a relative displacement member, which is arranged between the first actuator and the second actuator and can be relatively displaced in the first direction with respect to the first actuator.
摘要翻译： 具有减小尺寸的压电致动器，镜筒和光学装置。 压电致动器设置有：第一致动器，包括将沿第一方向移位的第一压电元件; 第二致动器，其包括在与第一方向相交的第二方向上移位的第二压电元件，并且相对于第一致动器沿与第一方向相交的方向布置; 以及相对位移构件，其布置在第一致动器和第二致动器之间，并且可以相对于第一致动器沿第一方向相对移位。
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36.发明授权
公开(公告)号：US6104123A
公开(公告)日：2000-08-15
申请号：US158072
申请日：1998-09-22
CPC分类号： H01L41/0906
摘要： A vibration actuator having improved drive efficiency by preventing the generation of noise and unnecessary vibrations. The vibration actuator includes a vibration member to generate vibration in contact with a relative movement member and a supporting member to support the vibration member. The supporting member includes a plurality of position determining members in contact with vibration member at different locations. At least one of the plurality of position determining members provides the vibration member with an energy imparting force.
摘要翻译： 一种通过防止产生噪音和不必要的振动而提高驱动效率的振动致动器。 振动致动器包括振动构件，以产生与相对运动构件和支撑构件接触的振动，以支撑振动构件。 支撑构件包括在不同位置处与振动构件接触的多个位置确定构件。 多个位置确定构件中的至少一个为振动构件提供能量赋予力。
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公开(公告)号：US5854529A
公开(公告)日：1998-12-29
申请号：US701673
申请日：1996-08-22
申请人： Takatoshi Ashizawa , Isao Sugaya
发明人： Takatoshi Ashizawa , Isao Sugaya
CPC分类号： H02N2/0045 , H02N2/106
摘要： A heterodegenerate type of vibration actuator, which during driving, when noise arises, does not suffer from a reduced driving efficiency nor is the driving force reduced. Such a vibration actuator includes a support member, an elastic body which generates a driving force at a driving surface D, which is an end surface located on an outer surface of the support member, a relative motion member that is in compressive contact with the elastic body located so as to rotate freely on the circumference of the mounting member, and a fixed member which fixes the support member and the elastic body. A mounting standard member regulates the positional relationship of the elastic body and the support member.
摘要翻译： 异动型振动致动器在驱动时产生噪声时不会降低驱动效率，也不会降低驱动力。 这种振动致动器包括支撑构件，在作为位于支撑构件的外表面上的端面的驱动表面D处产生驱动力的弹性体，与弹性体压缩接触的相对运动构件 本体位于安装构件的圆周上自由旋转;固定构件，其固定支撑构件和弹性体。 安装标准构件调节弹性体和支撑构件的位置关系。
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公开(公告)号：US5672930A
公开(公告)日：1997-09-30
申请号：US714526
申请日：1996-09-16
摘要： A vibration linear motor utilizing a composite vibration of a bending vibration and a longitudinal vibration, provided with a plate-shaped elastic member having a plate-shaped main body portion and a pair of driving force output portions provided on the surface of the main body portion for driving a driven object; and an electromechanical converting element adhered to the elastic member and adapted to generate the composite vibration, wherein the electromechanical converting element is provided on the surface, between the paired driving force output portions, of the main body portion.
摘要翻译： 一种振动线性电动机，其利用弯曲振动和纵向振动的复合振动，设置有具有板状主体部分的板状弹性部件和设置在主体部分的表面上的一对驱动力输出部分 用于驱动被驱动物体; 以及机电转换元件，其粘附到弹性构件并适于产生复合振动，其中机电转换元件设置在主体部分的成对的驱动力输出部分之间的表面上。
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