公开(公告)号：US07656073B2

公开(公告)日：2010-02-02

申请号：US11271676

申请日：2005-11-10

申请人： Yutaka Doshida ,  Hiroshi Kishi ,  Masafumi Tsukada ,  Katsuei Ishida

发明人： Yutaka Doshida ,  Hiroshi Kishi ,  Masafumi Tsukada ,  Katsuei Ishida

IPC分类号： H01L41/08

CPC分类号： H02N2/025 ,  G02B3/12 ,  G02B3/14 ,  H01L41/0973

摘要： A driving device, small in size and light in weight, is to stabilize the position of a surface-deforming element while reducing the effect of gravity thus enabling stable transfer and positioning. The driving device is structured to hold a movable member integrated with a piezoelectric vibrator and a lens by a shaft provided at a tip of a spring extended from an inner surface to center of a passageway. The shaft extends through an opening formed in a protrusion of the movable member. By a tensile force of the spring, the movable member at its outer periphery is pulled radially and held. When applying a voltage with a waveform changing sharply to the piezoelectric vibrator, the movable member flexes maximally upward or downward to have a reduced diameter and an increasing acceleration thereby making a movement. Then, when a frictional force increases, the protrusion is held at a point where the movable member moves. Because of being held by a tensile force, the effect of gravity decreases and hence the movable member is stabilized in position relative to a direction of transfer.

摘要翻译： 体积小，重量轻的驱动装置是为了稳定表面变形元件的位置，同时减少重力的影响，从而实现稳定的转移和定位。 驱动装置构造成通过设置在从通道的内表面到中心延伸的弹簧的尖端处的轴来保持与压电振动器和透镜一体化的可移动部件。 轴穿过形成在可动构件的突起中的开口。 通过弹簧的张力，可动件在其外周被径向拉伸并保持。 当施加具有波形变化的电压到压电振动器时，可动构件最大程度地向上或向下弯曲以具有减小的直径和增加的加速度，从而进行移动。 然后，当摩擦力增加时，突起被保持在可移动部件移动的点。 由于被张力保持，重力的作用减小，因此可动构件相对于传送方向稳定在适当位置。

公开(公告)号：US20060119218A1

公开(公告)日：2006-06-08

申请号：US11271676

申请日：2005-11-10

申请人： Yutaka Doshida ,  Hiroshi Kishi ,  Masafumi Tsukada ,  Katsuei Ishida

发明人： Yutaka Doshida ,  Hiroshi Kishi ,  Masafumi Tsukada ,  Katsuei Ishida

IPC分类号： H02N2/00

CPC分类号： H02N2/025 ,  G02B3/12 ,  G02B3/14 ,  H01L41/0973

摘要： A driving device, small in size and light in weight, is to stabilize the position of a surface-deforming element while reducing the effect of gravity thus enabling stable transfer and positioning. The driving device is structured to hold a movable member integrated with a piezoelectric vibrator and a lens by a shaft provided at a tip of a spring extended from an inner surface to center of a passageway. The shaft extends through an opening formed in a protrusion of the movable member. By a tensile force of the spring, the movable member at its outer periphery is pulled radially and held. When applying a voltage with a waveform changing sharply to the piezoelectric vibrator, the movable member flexes maximally upward or downward to have a reduced diameter and an increasing acceleration thereby making a movement. Then, when a frictional force increases, the protrusion is held at a point where the movable member moves. Because of being held by a tensile force, the effect of gravity decreases and hence the movable member is stabilized in position relative to a direction of transfer.

摘要翻译： 体积小，重量轻的驱动装置是为了稳定表面变形元件的位置，同时减少重力的影响，从而实现稳定的转移和定位。 驱动装置构造成通过设置在从通道的内表面到中心延伸的弹簧的尖端处的轴来保持与压电振动器和透镜一体化的可移动部件。 轴穿过形成在可动构件的突起中的开口。 通过弹簧的张力，可动件在其外周被径向拉伸并保持。 当施加具有波形变化的电压到压电振动器时，可动构件最大程度地向上或向下弯曲以具有减小的直径和增加的加速度，从而进行移动。 然后，当摩擦力增加时，突起被保持在可移动部件移动的点。 由于被张力保持，重力的作用减小，因此可动构件相对于传送方向稳定在适当位置。