Apparatus for checking a battery voltage
    62.
    发明授权
    Apparatus for checking a battery voltage 失效
    用于检查电池电压的装置

    公开(公告)号:US4163935A

    公开(公告)日:1979-08-07

    申请号:US878774

    申请日:1978-02-17

    摘要: An apparatus for checking the voltage of a power source battery in a photographic camera is disclosed. In simple form, this apparatus comprises first and second series circuits connected in parallel with each other to the battery, the first one of which has a luminous diode and a resistor, and the second one of which has two luminous diodes and a resistor, the characteristics of the luminous diodes and resistors being so selected that, when the actual voltage is dropped from a predetermined level, a difference between the brightnesses of the luminous diodes of the first and second circuits results to apprise the camera operator of the drop in battery voltage.

    摘要翻译: 公开了一种用于检查照相机中的电源电池的电压的装置。 简单的形式,该装置包括彼此并联连接到电池的第一和第二串联电路,其中第一和第二串联电路具有发光二极管和电阻器,第二串联电路具有两个发光二极管和电阻器, 发光二极管和电阻器的特性如此选择,使得当实际电压从预定电平下降时,第一和第二电路的发光二极管的亮度之间的差异导致摄像机操作者的电池电压下降 。

    Camera incorporated with a movable flash light device
    63.
    发明授权
    Camera incorporated with a movable flash light device 失效
    摄像机配有可移动闪光灯装置

    公开(公告)号:US4153355A

    公开(公告)日:1979-05-08

    申请号:US830708

    申请日:1977-09-06

    IPC分类号: G03B15/03 G03B15/05

    摘要: A flash unit is slidable between a retracted position in a camera body and a pop-up position outside the body. A switch enables a flash exposure control in response to movement of the flash unit out of the camera body and disables the exposure control when the flash unit is moved into the camera body. An override switches the switch to the disabling position when the flash unit is moved outside of the body and forms a discharge circuit for the flash main capacitor.

    摘要翻译: 闪光灯组件可在照相机主体中的缩回位置与身体外的弹出位置之间滑动。 开关可以响应于闪光灯组件移出相机机身而进行闪光曝光控制,并且当闪光灯组件移入相机机身时禁用曝光控制。 当闪光灯单元移动到身体外部时,超控将开关切换到禁用位置,并为闪存主电容器形成放电电路。

    Digital exposure meter
    65.
    发明授权
    Digital exposure meter 失效
    数字曝光表

    公开(公告)号:US4029421A

    公开(公告)日:1977-06-14

    申请号:US622834

    申请日:1975-10-16

    CPC分类号: G03B7/097

    摘要: This invention relates to a digital exposure meter in which brightness information is digitized and exposure factors such as film sensitivity are converted to digital values to perform digital computation. Accordingly, an exposure value, average exposure value, aperture value or shutter time is derived while a computer having various operation functions being controlled in sequence by sequence control means.

    摘要翻译: 本发明涉及一种数字曝光计,其中将亮度信息数字化,并将诸如胶片感光度的曝光因素转换为数字值进行数字计算。 因此,具有各种操作功能的计算机按序列控制装置依次控制,导出曝光值,平均曝光值,光圈值或快门时间。

    Automatic flash device
    66.
    发明授权
    Automatic flash device 失效
    自动闪光装置

    公开(公告)号:US3976913A

    公开(公告)日:1976-08-24

    申请号:US450213

    申请日:1974-03-11

    申请人: Yukio Mashimo

    发明人: Yukio Mashimo

    IPC分类号: H05B41/32 H05B37/00

    CPC分类号: H05B41/325

    摘要: An automatic flash device comprising:A power source,A main capacitor to be charged to a certain level by said power source,A discharge circuit being connected to said main capacitor,A control circuit to make the amount of electricity discharged by said discharge circuit correspond to flash photographing information,A means to start discharging, which is actuated after a shutter release means of a camera is actuated to start the discharging of said main capacitor, andA means to cause a flash tube to emit light when the amount of electricity charged at the main capacitor reaches such a value as corresponds to flash photographing information.

    摘要翻译: 一种自动闪光装置,包括: