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    • 1. 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。
    • 4. 发明申请
    • IMAGE DISPLAY APPARATUS
    • 图像显示设备
    • US20080285103A1
    • 2008-11-20
    • US12120474
    • 2008-05-14
    • Kenji Mizumoto
    • Kenji Mizumoto
    • G02B26/10
    • G02B26/101G02B26/0858G02B27/0031
    • An image display apparatus includes first and second actuators that cause a mirror (movable part) to oscillate about first and second axes intersecting with each other. The first actuator is driven based on a drive signal having a frequency component around a resonant frequency relevant to oscillatory motion of the mirror, to cause the mirror to oscillate about the first axis, thereby scanning a light beam reflected off the mirror in a horizontal direction of the raster scanning. The drive signal is generated by regulating a reference drive signal based on a correction signal for use in correcting distortion of a displayed image, the distortion occurring when the first actuator is driven based on the reference drive signal for use as the drive signal to cause oscillatory motion of the mirror. This consequently simplifies distortion correction in the horizontal direction (the main scanning direction).
    • 图像显示装置包括第一和第二致动器,其使得反射镜(可移动部件)围绕彼此相交的第一和第二轴线摆动。 基于驱动信号驱动第一致动器,该驱动信号具有围绕与镜的振荡运动相关的谐振频率的频率分量,以使反射镜围绕第一轴线振荡,从而沿水平方向扫描从反射镜反射的光束 的光栅扫描。 通过基于用于校正显示图像的失真的校正信号来调节基准驱动信号来生成驱动信号,基于用作驱动信号的基准驱动信号来驱动第一致动器发生的失真,引起振荡 镜子的运动。 因此,能够简化水平方向(主扫描方向)的失真校正。