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    • 14. 发明授权
    • Camera for daylight and flash photography
    • 相机用于日光和闪光摄影
    • US4200370A
    • 1980-04-29
    • US951083
    • 1978-10-13
    • Hiroshi AizawaMasanori UchidoiZenzo NakamuraYoshiyuki Takishima
    • Hiroshi AizawaMasanori UchidoiZenzo NakamuraYoshiyuki Takishima
    • G03B7/083G03B7/16G03B17/18
    • G03B7/083G03B17/18G03B7/16
    • An automatic exposure control system for cameras of flash photographic capabilities which is switched to either of the daylight or the mode depending upon whether or not a storage capacitor across which a flash tube is connected is sufficiently charged. The system comprises first and second computers for deriving daylight and flash exposure aperture values respectively, a diaphragm control circuit selectively receptive of the outputs of the computers through a first switch, first and second timing circuits for providing daylight and flash exposure times respectively, and a shutter control circuit selectively receptive of the outputs of the timing circuits through a second switch. The system is characterized in the use of a single mode selection actuator which is common to the first and second switches and which causes an automatic selection of the flash mode when the camera release occurs after the attainment of the voltage of the storage capacitor to the normal firing level. Thus, it is made possible to prevent occurrence of an event where the flash tube is actuated for firing with the simultaneous occurrence of selection of the flash exposure time, while the daylight exposure aperture remains effective, as the storage capacitor voltage reaches the normal firing level at a point in time during the daylight exposure operation.
    • 一种用于闪光照相能力的照相机的自动曝光控制系统,其被充分地充电,该自动曝光控制系统根据闪光灯管连接的存储电容器切换到日光或模式中的任一种。 该系统包括用于分别导出日光和闪光曝光光圈值的第一和第二计算机,通过第一开关选择性地接收计算机的输出的光阑控制电路,分别提供日光和闪光曝光时间的第一和第二定时电路,以及 快门控制电路通过第二开关选择性地接收定时电路的输出。 该系统的特征在于使用单模式选择致动器,其是第一和第二开关共同的,并且当在将存储电容器的电压达到正常之后发生相机释放时,自动选择闪光模式 射击等级 因此,当存储电容器电压达到正常点火电平时,可以防止在闪光管被激活以触发闪光的同时发生闪光曝光时间的选择的同时白昼曝光孔径保持有效的事件的发生 在白天曝光操作的时间点。
    • 15. 发明授权
    • Automatic winding up device for a camera
    • 相机自动上弦装置
    • US4182562A
    • 1980-01-08
    • US868862
    • 1978-01-12
    • Tomonori IwashitaMasanori UchidoiToshikazu IchiyanagiTetsuya TaguchiYukio IuraHiroshi Aizawa
    • Tomonori IwashitaMasanori UchidoiToshikazu IchiyanagiTetsuya TaguchiYukio IuraHiroshi Aizawa
    • G03B17/42G03B1/12G03B9/64
    • G03B17/425
    • An automatic winding up device for a camera, in which a device for detecting the winding up completion signal supplied from the camera body as well as a delay device starting to operate by the detection of the winding up completion signal by the detecting device are disclosed. These devices operate in such a manner that the current supply to the winding up motor is maintained during the operation of the delay device. This acts to overload the motor for a certain time determined by the delay device after the completion of the winding up operation and overloads the winding up mechanism of the camera body. The current supply to the motor is interrupted after lapse of a time determined by the delay device so as to stop the motor. The winding up member is driven in the reversed direction by the reaction of the overload exercised on the winding up mechanism so that the load exercised on the camera is released at the termination of the winding up operation.
    • 公开了一种用于摄像机的自动上弦装置,其中用于检测从相机机身提供的卷绕完成信号的装置以及通过检测装置检测到卷绕完成信号而开始工作的延迟装置。 这些装置的工作方式是在延迟装置的操作期间保持对卷绕电动机的电流供应。 这样做可以使电机在完成卷绕操作后由延迟装置确定一定时间,并使相机机身的卷绕机构过载。 在经过由延迟装置确定的时间之后,马达的电流供应中断,以便停止电动机。 通过在卷绕机构上施加的过载的反应,卷绕部件沿相反方向驱动,使得在卷绕操作结束时释放在相机上的负载。