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    • 2. 发明授权
    • Lens moving apparatus
    • 镜头移动装置
    • US5587846A
    • 1996-12-24
    • US502833
    • 1995-07-14
    • Masaaki MiyanoToyotoshi KawasakiMinoru KuwanaMasayuki MiyazawaMasayuki UeyamaYoshihiro Tasaka
    • Masaaki MiyanoToyotoshi KawasakiMinoru KuwanaMasayuki MiyazawaMasayuki UeyamaYoshihiro Tasaka
    • G01D5/14G01D5/16G01D5/245G02B7/08G02B7/10G02B7/02
    • G01D5/145G01D5/2451G02B7/08G02B7/102
    • A lens holding frame holding a lens in a lens barrel is arranged, and a contact member extending therebelow is in friction coupling with a driving axis. By applying driving pulses having such a waveform that includes a moderate rising portion followed by an abrupt falling portion to a piezoelectric element, the holding frame is moved along the direction of the optical axis. An index provided at the holding frame is exposed through a slit of lens barrel, and from the position of the lens on the holding frame, information with respect to the distance to the object is displayed. Detection of the position of the holding frame is performed by a position sensor of ferromagnetic thin film magneto-resistive element type (MR sensor) so as to obtain positional information of the lens on the holding frame based on the detection signal, and the obtained information may be displayed on a liquid crystal or other display portion provided on the lens unit or on a camera body.
    • 布置了将透镜保持在透镜镜筒中的透镜保持框架,并且在其下方延伸的接触构件与驱动轴线摩擦联接。 通过将具有包括中等上升部分,随后突然下降部分的波形的驱动脉冲施加到压电元件,保持框架沿着光轴方向移动。 设置在保持框架处的索引通过镜筒的狭缝曝光,并且从保持框架上的透镜的位置显示关于到物体的距离的信息。 通过铁磁薄膜磁阻元件型(MR传感器)的位置传感器来检测保持框的位置,以便基于检测信号获得保持框上的透镜的位置信息,并且获得的信息 可以显示在设置在透镜单元上的液晶或其他显示部分上或照相机主体上。
    • 7. 发明授权
    • Drive and guide mechanism and apparatus using the mechanism
    • 使用机构的驱动和引导机构和设备
    • US06392827B1
    • 2002-05-21
    • US09638609
    • 2000-08-15
    • Masayuki UeyamaMinoru KuwanaKenji Mizumoto
    • Masayuki UeyamaMinoru KuwanaKenji Mizumoto
    • G02B702
    • H02N2/025G02B7/102
    • A lens driving device which does not make larger an apparatus in which the device is installed, which ensures a longer span for preventing a tilt of a lens therein, and which allows an easy access to the lens after assemblage is disclosed. The lens driving device includes a stationary board; a lens frame holding a lens group; a moving body like a flat plate one end of which is fixed to the lens frame in which the moving body is slid over the stationary board; and a rod, extending in an optical direction of the lens, which guides the moving body in the optical direction and is driven by a piezoelectric element. In the arrangement, the other end of the flat plate is frictionally held by the rod over a predetermined distance in the optical direction. When the piezoelectric element is supplied with a voltage with a predetermined waveform, the lens frame is driven in the direction of the optical axis by the moving body frictionally engaging the rod.
    • 公开了一种透镜驱动装置,其不会使装置的装置更大,这确保了用于防止透镜在其中倾斜的更长的跨距,并且允许在组装之后容易地接近透镜。 透镜驱动装置包括固定板; 保持透镜组的透镜框; 像平板一样的移动体,其一端固定在移动体滑动在固定板上的透镜框架上; 以及在透镜的光学方向上延伸的杆,其在光学方向上引导移动体并由压电元件驱动。 在该布置中,平板的另一端由杆在光学方向上摩擦保持预定距离。 当压电元件被提供有预定波形的电压时,透镜框架通过摩擦接合杆的移动体沿光轴的方向被驱动。