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    • 3. 发明授权
    • Drive device, image acquisition device, and electronic apparatus
    • 驱动装置,图像采集装置和电子装置
    • US09083870B2
    • 2015-07-14
    • US13055571
    • 2009-07-22
    • Hitoshi KawamuraManabu TaniTakashi HasudaIkuo ShintaSusumu AokiKeisuke Taguchi
    • Hitoshi KawamuraManabu TaniTakashi HasudaIkuo ShintaSusumu AokiKeisuke Taguchi
    • H04N5/225G02B7/08H02N2/02H04N1/00
    • H04N5/2254G02B7/08H02N2/025H04N1/00307H04N5/2257
    • A drive device in which the frequency of a drive waveform applied to a piezoelectric element is easily settable with less obligation to consider resonance in a stationary member. The device includes a piezo element that expands and contracts according to a drive voltage, a transmission shaft that receives vibration produced by the piezo element, a stationary member that holds the transmission shaft in a slidable state along the longitudinal direction of the transmission shaft, and a lens holder that is displaced together with the piezo element and transmission shaft relative to the stationary member according to drive of the piezo element. The piezo element and the transmission shaft move in the moving direction of the lens holder in synchronization with the lens holder according to drive of the piezo element in the state where the piezo element is spaced from the stationary member. By employing this structure, the frequency of the drive waveform applied to the piezo element can be set easily without considering resonance in the stationary member.
    • 一种驱动装置,其中施加到压电元件的驱动波形的频率可以容易地设置,而在固定构件中考虑共振的义务较少。 该装置包括根据驱动电压而膨胀和收缩的压电元件,接收由压电元件产生的振动的传动轴;沿着传动轴的纵向保持传动轴处于滑动状态的固定部件;以及 根据压电元件的驱动,与压电元件和传动轴相对于固定部件一起移动的透镜保持器。 压电元件和传动轴在压电元件与固定构件间隔开的状态下,根据压电元件的驱动与透镜保持器同步地在透镜保持器的移动方向上移动。 通过采用这种结构,可以容易地设置施加到压电元件的驱动波形的频率,而不考虑固定构件的共振。
    • 4. 发明申请
    • DRIVE DEVICE, IMAGE ACQUISITION DEVICE, AND ELECTRONIC APPARATUS
    • 驱动装置,图像获取装置和电子装置
    • US20110242403A1
    • 2011-10-06
    • US13055571
    • 2009-07-22
    • Hitoshi KawamuraManabu TaniTakashi HasudaIkuo ShintaSusumu AokiKeisuke Taguchi
    • Hitoshi KawamuraManabu TaniTakashi HasudaIkuo ShintaSusumu AokiKeisuke Taguchi
    • H04N5/225H02N2/04G02B7/04
    • H04N5/2254G02B7/08H02N2/025H04N1/00307H04N5/2257
    • A drive device in which the frequency of a drive waveform applied to a piezoelectric element is easily settable with less obligation to consider resonance in a stationary member. The device includes a piezo element that expands and contracts according to a drive voltage, a transmission shaft that receives vibration produced by the element, a stationary member that holds the transmission shaft in a slidable state along the longitudinal direction of the transmission shaft, and a lens holder that is displaced together with the piezo element and transmission shaft relative to the stationary member according to drive of the piezo element. The piezo element and the transmission shaft move in the moving direction of the lens holder in synchronization with the lens holder according to drive of the piezo element in the state where the piezo element is spaced from the stationary member. By employing this structure, the frequency of the drive waveform applied to the piezo element can be set easily without considering resonance in the stationary member.
    • 一种驱动装置,其中施加到压电元件的驱动波形的频率可以容易地设置,而在固定构件中考虑共振的义务较少。 该装置包括根据驱动电压而膨胀和收缩的压电元件,接收由该元件产生的振动的传动轴;沿着传动轴的纵向保持传动轴处于滑动状态的固定部件;以及 透镜架,其与压电元件和传动轴一起相对于静止构件与压电元件的驱动一起移位。 压电元件和传动轴在压电元件与固定构件间隔开的状态下,根据压电元件的驱动与透镜保持器同步地在透镜保持器的移动方向上移动。 通过采用这种结构,可以容易地设置施加到压电元件的驱动波形的频率,而不考虑固定构件的共振。