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    • 3. 发明授权
    • Photographic devices for controlling flash photography
    • 用于控制闪光摄影的照相设备
    • US4344680A
    • 1982-08-17
    • US249404
    • 1981-03-31
    • Tokuji IshidaNobuyuki TaniguchiMasatoshi ItohToshiaki MatsumotoTatsuro IzumiMasatake Niwa
    • Tokuji IshidaNobuyuki TaniguchiMasatoshi ItohToshiaki MatsumotoTatsuro IzumiMasatake Niwa
    • G03B7/16G03B15/05H05B41/32H05B41/34
    • G03B15/05G03B7/16G03B2215/0578G03B2215/0582
    • In a photographic system for flash photography, the firing current of an electronic flash tube is selectively restricted in accordance with the detection of whether or not the flash light amount necessary for a flash photograph is below a predetermined level prior to the firing of the flash tube for a photographic exposure. A selection is made between a first mode of flash firing with flash tube current flowing through a switching element and a second mode of flash firing with a flash tube current flowing through an impedance device serially connected with the flash tube. Alternatively, a selection can be made between higher or lower voltage levels to which the main flash firing capacitor is charged. The amount of light required from a flash device can be preparatorily identified and when less than a predetermined light output the flash device is caused to select the second mode of flash firing, or alternatively to select the lower level of the voltage charged by the main capacitor. The operation of the flash tube is controlled such that the flash light emission therefrom substantially corresponds to the necessary flash light amount such that a reduction is obtained in the ratio of excessive amount of flash light to the necessary amount of flash light.
    • 在用于闪光摄影的摄影系统中,根据闪光灯照射所需的闪光量是否低于闪光管的闪光灯的预定水平,来选择性地限制电子闪光管的点火电流 为摄影曝光。 在闪光灯闪光的第一模式与流过开关元件的闪光管电流之间进行选择,并且通过流过与闪光管串联连接的阻抗元件的闪光管电流进行第二闪光闪光模式的选择。 或者,可以在对主闪光点火电容器进行充电的较高或较低的电压电平之间进行选择。 可以准确地识别闪光装置所需的光量,并且当小于预定光输出时,闪光装置被选择第二种闪光模式,或者替代地选择由主电容器充电的较低电压 。 控制闪光管的操作,使得其闪光发射基本上对应于必要的闪光量,使得以闪光量过多的量与闪光的量相比获得减少。
    • 10. 发明授权
    • Camera system
    • 相机系统
    • US5659820A
    • 1997-08-19
    • US131952
    • 1993-10-08
    • Nobuyuki TaniguchiMasatake NiwaAkira FujiiTakeo HodaMasaaki NakaiMinoru SekidaMasayoshi Sahara
    • Nobuyuki TaniguchiMasatake NiwaAkira FujiiTakeo HodaMasaaki NakaiMinoru SekidaMasayoshi Sahara
    • G03B7/097G03B7/24G03B7/26G03B17/18
    • G03B7/097G03B7/24G03B7/26G03B2217/18Y10T307/625
    • A camera having a covering member which covers the upper side of the camera and having a projecting portion shaped as a pentagonal reflecting member; a first manually operable portion located at the covering member on one side of the projecting portion for designating one of a plurality of kinds of photographic data; a second manually operable portion located at the covering member on the other side of the projecting portion and adapted for commonly altering any of the plurality of kinds of photographing data to actually alter the designated one thereof in combination with the actual designation by the first manually operable portion; a light measuring device for measuring the luminance of the object to be photographed; a calculator for carrying out an exposure calculation based on the result of the light measuring; a display portion for displaying at least either one of shutter speed and aperture value obtained by the exposure calculation; and a display controller for controlling the display such that, when the first manually operable portion is operated, the display of at least either one of shutter speed and aperture value is turned off, and instead a designated photographing data is displayed.
    • 一种照相机,具有覆盖照相机的上侧的覆盖部件,并具有形状为五边形反射部件的突出部分; 第一手动操作部分,位于所述突出部分的一侧上的所述覆盖部件上,用于指定多种摄影数据中的一种; 第二手动操作部分,位于突出部分的另一侧上的覆盖部件上,并适用于共同改变多种拍摄数据中的任何一种,以便通过第一可手动操作的实际指定实际改变其指定的一个 一部分; 用于测量被拍摄物体的亮度的光测量装置; 基于光测量结果执行曝光计算的计算器; 用于显示通过曝光计算获得的快门速度和光圈值中的至少一个的显示部分; 以及显示控制器,用于控制显示器,使得当第一可手动部分被操作时,快门速度和光圈值中的至少一个的显示被关闭,而是显示指定的拍摄数据。