Display circuit for a camera
    2.
    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。

    Dual preference camera for digitally displaying preset and computered
valves
    6.
    发明授权
    Dual preference camera for digitally displaying preset and computered valves 失效
    双重偏好相机,用于数字显示预设和计算阀

    公开(公告)号:US4162839A

    公开(公告)日:1979-07-31

    申请号:US796716

    申请日:1977-05-13

    IPC分类号: G03B7/091 H03M1/00 G03B7/08

    CPC分类号: G03B7/097 H03M1/123

    摘要: In the camera disclosed, depending upon whether the shutter preference or aperture preference mode is selected, a computer establishes a computed value on the basis of a preset value and other ambient conditions. A number of separate comparators compare the respective values to a single reference wave form and turn off respective gates when the analog voltages achieve predetermined relationships to the reference wave form. The gates passed pulses from a common source from the beginning of the reference wave form until the respective gates are shut off. The values are thus digitized and displayed within the camera.

    摘要翻译: 在所公开的照相机中,根据是否选择快门偏好或光圈偏好模式,计算机基于预设值和其他环境条件建立计算值。 多个独立的比较器将各个值与单个参考波形进行比较,并且当模拟电压达到与参考波形的预定关系时,关闭各个门。 栅极从参考波形开始通过来自公共源的脉冲,直到各个门被切断。 因此,这些值被数字化并显示在相机内。

    Photographic information setting apparatus for camera
    8.
    发明授权
    Photographic information setting apparatus for camera 失效
    照相机摄影信息设定装置

    公开(公告)号:US4081813A

    公开(公告)日:1978-03-28

    申请号:US690154

    申请日:1976-05-26

    CPC分类号: G03B7/091

    摘要: An apparatus for setting an exposure control factor into a camera in the form of a digital signal without using a code plate or a plurality of switches. A pulse train is fed to a binary counter through an AND circuit which, upon selective receipt of gating-on and gating-off signals, operates to initiate and terminate flow of pulses therethrough respectively. When the counter has counted the selected number of pulses, the photographer who is viewing a digital display unit cooperative with the counter to detect this pulse number may actuate a button to produce the gating-off signal, thereby a corresponding desired value of the exposure control factor is set into the camera as a function of the number of pulses counted.

    摘要翻译: 一种用于以数字信号的形式将曝光控制系数设置到相机中而不使用代码板或多个开关的装置。 脉冲串通过AND电路馈送到二进制计数器,AND电路在选择性接收门控和门控信号时,操作以分别启动和终止脉冲流。 当计数器对所选择的脉冲数进行计数时,正在观看数字显示单元的计数器协作以检测该脉冲数的摄影者可以启动按钮以产生门控信号,从而相应的曝光控制值 作为计数脉冲数的函数将相机设置为相机。

    Camera with digital control device
    10.
    发明授权
    Camera with digital control device 失效
    摄像头配有数字控制装置

    公开(公告)号:US4079386A

    公开(公告)日:1978-03-14

    申请号:US678558

    申请日:1976-04-20

    CPC分类号: G03B7/095

    摘要: The present invention relates to a camera with a displacement means for controlling the exposure amount as the function of the mechanical displacement position. The displacement means are so designed that a brush is slid over a comb-shaped conductive pattern mechanically linked with the displacement means so as to convert the displacement position of the displacement means into a pulse number. Further, when the pulse number reaches a certain determined value, the displacement means is stopped in such a manner that the pulse number corresponds with the exposure amount and characterized in that, by determining the position at which each conductor of the comb-shaped conductive pattern is provided, relative to the position at which the displacement means stops in accordance with the displacement speed of the displacement means, the displacement amount of the displacement means due to the time delay since the pulse number reaches a certain determined amount till the displacement means actually stops is compensated so that the pulse number always corresponds with the displacement position in a precise way.

    摘要翻译: 本发明涉及具有用于控制作为机械位移位置的函数的曝光量的位移装置的照相机。 位移装置被设计成使得刷子在与位移装置机械连接的梳状导电图案上滑动,以将位移装置的位移位置转换成脉冲数。 此外,当脉冲数达到一定的确定值时,位移装置以脉冲数对应于曝光量的方式停止,其特征在于,通过确定梳状导电图案的每个导体的位置 相对于位移装置根据位移装置的移动速度而停止的位置,由于脉冲数达到一定的确定量而导致的时间延迟的位移量,直到位移装置实际上 停止被补偿,使得脉冲数总是以精确的方式与位移位置对应。