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    • 6. 发明授权
    • Camera with vibration compensation device varying the compensating action in accordance with the focal length of a lens and the distance to the subject
    • 具有振动补偿装置的相机根据镜头的焦距和与被摄体的距离改变补偿动作
    • US06332060B1
    • 2001-12-18
    • US09298985
    • 1999-04-26
    • Hidenori MiyamotoYoshio ImuraMinoru KatoSueyuki OhishiNobuhiko TeruiTatsuo Amanuma
    • Hidenori MiyamotoYoshio ImuraMinoru KatoSueyuki OhishiNobuhiko TeruiTatsuo Amanuma
    • G03B1700
    • G03B5/00G03B2205/0015G03B2205/0053G03B2217/005
    • A camera is provided which has a vibration detection unit that detects vibration, a photographic focal length detection unit which detects the focal length of the photographic optical system, and a distance-measurement unit that measures the distance to the object being photographed. The vibration compensation device employs drive motors as a vibration compensation unit. The drive motors have a start up time which is at least as fast as the acceleration of a vibration having roughly a sine wave shape with a frequency of 10 Hz and a maximum velocity of 7.5 mm/sec. Such a motor is able to reach the maximum velocity of the vibration in under 25 ms. Additionally, a correct compensating coefficient calculation unit is provided which, from the output of the photographic focal length detection unit and the output of the distance-measurement unit, calculates a correct compensation coefficient for determining how much to change the optical axis of the photographic optical system relative to the output of the vibration detection unit. The vibration compensation device compensates for vibrations by driving the motor to change the optical axis of the photographic optical system of the camera in response to the compensation coefficient and the output of the vibration detection unit.
    • 提供了具有检测振动的振动检测单元的摄像机,检测摄影光学系统的焦距的摄影焦距检测单元和测量到被拍摄物体的距离的距离测量单元。 振动补偿装置采用驱动电动机作为振动补偿装置。 驱动电动机的启动时间至少等于具有大致正弦波形的频率为10Hz,最大速度为7.5mm / sec的振动的加速度。 这样的电机能够在25ms以内达到振动的最大速度。 另外,提供了一个正确的补偿系数计算单元,其从摄影焦距检测单元的输出和距离测量单元的输出计算出正确的补偿系数,以确定改变摄影光学器件的光轴的程度 系统相对于振动检测单元的输出。 振动补偿装置通过驱动电动机来响应于补偿系数和振动检测单元的输出来改变照相机的摄影光学系统的光轴来补偿振动。
    • 10. 发明授权
    • Photographic device having a vibration compensation function with
reduced power consumption
    • 具有降低功耗的振动补偿功能的摄影装置
    • US5701521A
    • 1997-12-23
    • US377263
    • 1995-01-25
    • Sueyuki OhishiToshiyuki Nakamura
    • Sueyuki OhishiToshiyuki Nakamura
    • G03B7/30G02B27/64G03B5/00G03B7/091G03B17/00
    • G03B5/00G03B2205/0007G03B2205/0053G03B2217/005
    • A photographic device has a vibration compensation system with reduced power consumption. The photographic device includes a vibration compensation system with a vibration detection device to detect vibration caused by, for example, a photographer's hand tremor, a vibration compensation device to cause the optical axis of a photographic optical system to change to compensate for the detected vibration, and a control unit to perform processes including vibration compensation control to control the vibration compensation device based on the output of the vibration detection device. The control unit has a low electric current consumption mode which causes its processes to stop to restrain the consumption of electric current, and a normal operation mode during which processes are performed. The photographic device includes a mode changeover device to change the control unit from the normal operation mode to the low electric current consumption mode when a photographic operation has ended. The mode changeover device may also change the control unit from the low electric current consumption mode to the normal operation mode when photographic preparation operations commence. The photographic device also includes an exposure device to perform an exposure on an image forming plane of a photographic optical system, and the control unit operates in a high-speed mode when both exposure control and vibration compensation control are performed at the same time, and in a low-speed mode when exposure control and vibration compensation control are not performed simultaneously.
    • 摄影装置具有降低功耗的振动补偿系统。 照相装置包括具有振动检测装置的振动补偿系统,用于检测由例如摄影师的手抖动引起的振动;振动补偿装置,其使摄影光学系统的光轴改变以补偿检测到的振动, 以及控制单元,用于执行包括振动补偿控制的处理,以基于所述振动检测装置的输出来控制所述振动补偿装置。 控制单元具有低电流消耗模式,其使其过程停止以抑制电流的消耗,以及执行处理的正常操作模式。 照相装置包括:模式转换装置,当照相操作结束时,将控制单元从正常操作模式改变为低电流消耗模式。 当照相准备操作开始时,模式切换装置还可以将控制单元从低电流消耗模式改变为正常操作模式。 摄影装置还包括曝光装置,用于在摄影光学系统的图像形成平面上进行曝光,并且当同时执行曝光控制和振动补偿控制时,控制单元以高速模式操作,以及 在不同时进行曝光控制和振动补偿控制的低速模式下。