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    • 8. 发明授权
    • Independent mirror swing-up means in a single lens reflex camera with
memory exposure device
    • 独立镜面摆放意味着在具有记忆曝光装置的单个镜头反光相机中
    • US3936848A
    • 1976-02-03
    • US406317
    • 1973-10-15
    • Kazuhiro Akiyama
    • Kazuhiro Akiyama
    • G03B7/089G03B7/083G03B9/08G03B19/12G03B7/08
    • G03B19/12G03B7/083
    • A manually operable mirror swing-up lever is associated with an exposure information memorizing device. The exposure information memorizing device has a locking lever which locks a sliding contact movable on a variable resistor at a position representing the exposure information. The variable resistor is connected in parallel with a memory capacitor in an electric circuit for controlling an electric shutter. The terminal voltage of the variable resistor is controlled to be equivalent to the terminal voltage of the memory capacitor. When the mirror is swung up by the manually operable mirror swing-up lever, the sliding contact is locked in position to make the variable resistor work as an equivalent for the capacitor, and the resistor is substituted for the memory capacitor.
    • 手动操作的镜子摆动杆与曝光信息存储装置相关联。 曝光信息存储装置具有锁定杆,该锁定杆将表示曝光信息的位置处的可变电阻器上的滑动接触件锁定。 可变电阻器与用于控制电动快门的电路中的存储电容器并联连接。 可变电阻器的端子电压被控制为等于存储电容器的端子电压。 当镜子由可手动操作的镜子摆放杆摆动时,滑动触点被锁定在适当的位置,以使可变电阻器作为电容器的等效电路,而电阻器代替存储电容器。