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    • 31. 发明授权
    • Motor driven camera
    • 电动摄像机
    • US4958175A
    • 1990-09-18
    • US311634
    • 1989-02-16
    • Yasuo AsakuraToshiyuki ToyofukuYuji Imai
    • Yasuo AsakuraToshiyuki ToyofukuYuji Imai
    • G03B17/42
    • G03B17/425
    • A motor driven camera includes a plurality of motors for independently driving individual actuators of a camera such as film winder, shutter charger, a drive associated with a movable reflecting mirror and diaphragm driver. In addition, the camera includes a storage battery, a drive circuit for feeding the power from the battery to the plurality of motors, and a controller which controls the drive circuit. In accordance with the invention, a film winding rate or the rotational speed of a motor which performs a shutter charging operation or the speed of operation of the movable reflecting mirror or the voltage of the power supply is detected, and the plurality of motors are automatically switched between the concurrent drive and the sequential drive in accordance with the detected value. Subsequent to the switching, either drive to which the operation is switched is maintained.
    • 马达驱动的照相机包括多个电动机,用于独立地驱动照相机的各个致动器,例如卷绕机,快门充电器,与可移动的反射镜和隔膜驱动器相关联的驱动器。 此外,照相机还包括蓄电池,用于将电池的电力馈送到多个电动机的驱动电路以及控制驱动电路的控制器。 根据本发明,检测进行快门充电操作的电动机的卷绕速度或电动机的旋转速度或可移动反射镜的操作速度或电源的电压,并且多个电动机是自动的 根据检测到的值在并行驱动器和顺序驱动器之间切换。 在切换之后,保持切换操作的驱动器。
    • 32. 发明授权
    • Diaphragm apparatus for camera
    • 相机用隔膜装置
    • US4862207A
    • 1989-08-29
    • US193045
    • 1988-05-18
    • Yasuo AsakuraToshiyuki Toyofuku
    • Yasuo AsakuraToshiyuki Toyofuku
    • G03B7/085G03B9/06
    • G03B9/06G03B7/085
    • A diaphragm apparatus is disclosed including a piezoelectric actuator of bimorph type. A drive circuit associated with the actuator applies a voltage corresponding to a diaphragm aperture which is calculated in accordance with a photometric value to the actuator to produce a displacement thereof, which is transmitted through a diaphragm operating member to open or close diaphragm blades so as to control a diaphragm aperture. The drive circuit applies a reset voltage which resets the diaphragm blades to a predetermined reset condition, to the piezoelectric actuator, and after the resetting operation, it applies a voltage corresponding to a given diaphragm aperture to the piezoelectric actuator.
    • 公开了一种包括双压电晶片型压电致动器的隔膜装置。 与致动器相关联的驱动电路将对应于根据测光值计算的光阑孔径的电压施加到致动器以产生其位移,该位移通过隔膜操作构件传送以打开或关闭光阑叶片,从而 控制光圈孔径。 驱动电路将复位电压施加到压电致动器的预定复位条件下,并且在复位操作之后,将对应于给定的光阑孔径的电压施加到压电致动器。
    • 35. 发明授权
    • Electronic imaging device
    • 电子成像装置
    • US07248419B2
    • 2007-07-24
    • US11423614
    • 2006-06-12
    • Yukinori TakahashiYasuo AsakuraNaoki Fujii
    • Yukinori TakahashiYasuo AsakuraNaoki Fujii
    • G02B15/14H04N2/225
    • G02B13/0065G02B7/102G02B13/009G03B17/04G03B17/17H04N5/2254H04N2101/00
    • An electronic imaging device is provided which includes a first lens group which takes in a luminous flux from a subject along a first optical axis, an optical axis conversion member which bends the luminous flux along a second optical axis which intersects with the first optical axis, a second lens which images the bent luminous flux to an imaging element, and an optical amount adjustment unit provided between the second lens group and the optical axis conversion member. An AF motor, a driving unit which drives the optical amount adjustment unit, and a zoom motor are each selectively arranged at one of four spaces formed by a first plane defined by the optical amount adjustment unit and a second plane defined by the first and second optical axes. The AF motor, the driving unit, and the zoom motor may all be arranged at one side of the second plane.
    • 提供了一种电子成像装置,其包括:第一透镜组,其沿着第一光轴摄入来自被摄体的光通量;光轴转换构件,其沿着与所述第一光轴相交的第二光轴弯曲所述光通量; 第二透镜,其将弯曲光束成像到成像元件;以及光量调节单元,设置在第二透镜组和光轴转换部件之间。 AF电动机,驱动光量调节单元的驱动单元和变焦电动机分别选择性地布置在由光量调节单元限定的第一平面形成的四个空间中的一个空间和由第一和第二 光轴。 AF电动机,驱动单元和变焦电动机都可以布置在第二平面的一侧。