Indicating device for computer type electronic flash unit
    101.
    发明授权
    Indicating device for computer type electronic flash unit 失效
    计算机型电子闪光灯组件指示装置

    公开(公告)号:US4331406A

    公开(公告)日:1982-05-25

    申请号:US157308

    申请日:1980-06-09

    CPC分类号: H05B41/325

    摘要: A flash system including a computer type electronic flash unit and a camera. The computer type electronic flash unit includes an output terminal at which a signal representing the fully charged condition of an electrical energy storage capacitor is produced, a firing stop signal generating circuit and a signal supply circuit for supplying the output of the generating circuit to the output terminal. The camera includes an indicating device connected to the output terminal for indicating the firing stop signal transmitted from the output terminal. The camera also includes an override circuit for inhibiting the charge completion signal from being transmitted to the indicating means in response to a release operation of the camera.

    摘要翻译: 包括计算机型电子闪光灯组件和照相机的闪光灯系统。 计算机式电子闪光灯单元包括:输出端子,在该输出端子处产生表示电能存储电容器的充满电状态的信号;点火停止信号发生电路;以及用于将发电电路的输出提供给输出端的信号供给电路 终奌站。 相机包括连接到输出端子的指示装置,用于指示从输出端子发送的点火停止信号。 相机还包括用于响应于照相机的释放操作而禁止充电完成信号被传送到指示装置的超控电路。

    Display circuit for a camera
    102.
    发明授权
    Display circuit for a camera 失效
    相机显示电路

    公开(公告)号:US4089010A

    公开(公告)日:1978-05-09

    申请号:US728161

    申请日:1976-09-30

    CPC分类号: G03B17/20

    摘要: A photographing information display circuit for a camera which performs digital computation of information relative to exposure, etc. and displays the computed digital values. The display of the digital value computed is effected through an analog display circuit such as a meter circuit by an extremely simplified circuit arrangement, without using any D-A conversion circuit such as a ladder circuit or the like. The invented display circuit arrangement minimizes the electric power requirement for display to solve the problem of electric power consumption for display in small-sized camera.

    摘要翻译: 一种照相机的拍摄信息显示电路,其执行相对于曝光等的信息的数字计算,并显示所计算的数字值。 所计算的数字值的显示通过诸如仪表电路的模拟显示电路通过非常简化的电路布置实现,而不使用诸如梯形电路等的任何D-A转换电路。 本发明的显示电路装置将显示器的电力需求最小化,以解决在小型照相机中显示的电力消耗问题。