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公开(公告)号：US4392727A
公开(公告)日：1983-07-12
申请号：US301096
申请日：1981-09-10
CPC分类号： G03B7/085
摘要： A controlling device that determines the diaphragm aperture of the camera in accordance with an output of a light measuring circuit, which detects a light from an object to be photographed being illuminated by a light which includes an alternatingly changing component and has its intensity maintained constant in effect for a given time period. The device is equipped with a smoothing circuit for smoothing the ripple component in the photoelectric output. The smoothing circuit is set to have a charge time constant smaller than the discharge time constant and generates an output equivalent to the peak value of the ripple component. The light that illuminates the photographic object can be generated from the electronic flash and the photoelectric detector may be arranged within the body of a camera to receive the light from the photographic object that passes through the diaphragm aperture of the camera.
摘要翻译： 根据检测来自被拍摄物体的光的光测量电路的输出来确定相机的光圈孔径的控制装置被包含交替变化的部件并且其强度保持恒定的光照射 在给定时间段内的效果。 该器件配有一个平滑电路，用于平滑光电输出中的纹波分量。 平滑电路被设置为具有小于放电时间常数的充电时间常数，并且产生与波纹分量的峰值相当的输出。 可以从电子闪光灯产生照射物体的光，并且光电检测器可以布置在照相机的主体内，以接收来自照相物体的通过照相机的光圈孔的光。
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公开(公告)号：US4496230A
公开(公告)日：1985-01-29
申请号：US395991
申请日：1982-07-16
CPC分类号： G03B7/16
摘要： A flash photography system for a camera which is adapted to be used with an electronic flash device which supplies a control signal when the device is a ready condition. The camera includes a diaphragm control circuit which automatically control the diaphragm aperture in accordance with a measurement of the light from the scene to be photographed. The diaphragm control circuit includes a circuit for producing a first program signal for controlling the diaphragm aperture and camera exposure time in a first programmed relationship with the light measurement for daylight or natural light photography, and a circuit for produces a second program signal for controlling the diaphragm aperture in a second programmed relationship with the light measurement for flash photography. The second program signal is adapted to provide a proper exposure for the ambient light condition as well as the flash light illumination.
摘要翻译： 一种用于相机的闪光摄影系统，其适于与当该装置处于就绪状态时提供控制信号的电子闪光装置一起使用。 照相机包括光圈控制电路，其根据要拍摄的场景的光的测量自动地控制光阑孔径。 光阑控制电路包括用于产生用于控制光阑孔径的第一程序信号和与日光或自然光摄影的光测量成第一编程关系的照相机曝光时间的电路，以及用于产生第二程序信号的电路， 光圈孔径与闪光摄影的光线测量值成二次关系。 第二程序信号适于为环境光条件以及闪光照明提供适当的曝光。
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公开(公告)号：US4458995A
公开(公告)日：1984-07-10
申请号：US428581
申请日：1982-09-30
申请人： Tokuji Ishida , Hiroshi Hosomizu
发明人： Tokuji Ishida , Hiroshi Hosomizu
CPC分类号： G03B7/16
摘要： A dedicated electronic flash device capable of being combined with a camera and receiving a flash device identifying signal at a common terminal for establishing automatic aperture size control in a flash light exposure mode, and establishing manual aperture size control in the absence of the identifying signal. A flash light emission terminating signal, having a level greater than the identifying signal, is transmitted from the camera to the dedicated electronic flash device through the common terminal. The camera is capable of changing the automatic exposure time control and the aperture size control modes into respective flash light exposure modes in response to a charge completion signal transmitted from the electronic flash device through another terminal.
摘要翻译： 一种专用电子闪光灯装置，其能够与相机组合并且在公共端接收识别信号的闪光灯装置，以在闪光曝光模式下建立自动光圈尺寸控制，以及在没有识别信号的情况下建立手动光圈尺寸控制。 具有大于识别信号的电平的闪光发光终端信号通过公共终端从照相机发送到专用电子闪光装置。 响应于从电子闪光装置通过另一个终端发送的充电完成信号，相机能够将自动曝光时间控制和光圈尺寸控制模式改变成各自的闪光曝光模式。
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公开(公告)号：US4457611A
公开(公告)日：1984-07-03
申请号：US416128
申请日：1982-09-09
申请人： Tokuji Ishida , Hiroshi Hosomizu
发明人： Tokuji Ishida , Hiroshi Hosomizu
CPC分类号： G03B7/16
摘要： A photographic system for use in flash photography with a camera is disclosed. The system is constructed to emit a preliminary flash light of infrared light component in advance of a main flash light emission of visible light component for flash photography in order that the preliminary flash light emission does not stimulate a human eye. The preliminary flash light is used for controlling an exposure of the camera such as an aperture of diaphragm.
摘要翻译： 公开了一种用于用相机进行闪光摄影的摄影系统。 该系统被构造成在用于闪光摄影的可见光成分的主闪光发射之前发射红外光分量的初步闪光，以便预备闪光发射不刺激人眼。 预备闪光灯用于控制照相机的曝光，例如光阑孔。
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公开(公告)号：US4166679A
公开(公告)日：1979-09-04
申请号：US809472
申请日：1977-06-23
CPC分类号： G03B7/083
摘要： The present invention is an exposure information setting circuit for use in photographic cameras which calculates the required exposure time in response to input signals indicative of APEX indices and produces a signal indicative of the exposure time. The circuit is constituted mainly by an integrated circuit which takes advantage of the fact that although the absolute values of electrical characteristics of the circuit elements may fluctuate, particular ratios of such values can be maintained in a predetermined ratio with good precision. This maintenance of the particular ratios can be achieved without requiring any supplementary voltage sources or/and adjustment resistors, whereby large-scale production of the exposure information setting circuit at low cost is possible.
摘要翻译： 本发明是一种用于照相机的曝光信息设置电路，其根据表示APEX索引的输入信号计算所需的曝光时间并产生指示曝光时间的信号。 该电路主要由集成电路构成，其利用了尽管电路元件的电气特性的绝对值可能波动的事实，但是这些值的特定比例可以以高精度保持在预定比率。 可以在不需要任何辅助电压源或/和调整电阻器的情况下实现特定比率的维护，从而可以以低成本大规模生产曝光信息设置电路。
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公开(公告)号：US4367023A
公开(公告)日：1983-01-04
申请号：US257238
申请日：1981-04-24
申请人： Tokuji Ishida , Hiroshi Hosomizu
发明人： Tokuji Ishida , Hiroshi Hosomizu
IPC分类号： G03B7/16
CPC分类号： G03B7/16
摘要： Camera exposure control circuitry capable of functioning with a dedicated flash device for producing a preliminary flash light of a relatively long controllable duration at a substantially constant intensity prior to the production of primary flash light automatically changes the diaphragm aperture from an initial aperture setting to another aperture setting during preliminary flash light emission. The light received through the diaphragm aperture set during the preliminary flash light emission provides a first signal output to provide an appropriate aperture size for flash photography in response to the measured light conditions. The duration of the preliminary flash light emission is terminated by a second signal from the camera exposure control circuitry when the diaphragm aperture is determined.The changing of the aperture size can be interrupted when a predetermined relationship exists between a reference signal and the first signal output by a timing signal generated after a lapse of a predetermined time period from the initiation of the change in the diaphragm aperture. The second signal is also transmitted from the camera control circuitry to the flash device when the aforementioned predetermined relationship does not exist.Additional light receptors receive light from the primary flash light emission through the determined diaphragm aperture to control the amount of primary flash light emission for optimum exposure.
摘要翻译： 摄像机曝光控制电路能够与专用闪光装置一起工作，以在产生初级闪光灯之前以基本上恒定的强度产生具有相当长的可控持续时间的初步闪光灯，自动将光阑孔径从初始光圈设置改变到另一光圈 初步闪光发光时的设定。 通过在预备闪光发光期间设置的光阑孔径接收的光提供第一信号输出，以响应于测量的光条件为闪光摄影提供适当的孔径尺寸。 当确定光阑孔径时，初步闪光发光的持续时间由来自照相机曝光控制电路的第二信号终止。 当基准信号和由从隔膜孔径的变化开始经过预定时间段之后产生的定时信号输出的第一信号之间存在预定关系时，可以中断孔径尺寸的改变。 当上述预定关系不存在时，第二信号也从相机控制电路发送到闪存装置。 附加的光接收器通过确定的光阑孔径接收来自初级闪光发光的光，以控制初始闪光发光量用于最佳曝光。
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7.发明授权
公开(公告)号：US4427278A
公开(公告)日：1984-01-24
申请号：US432442
申请日：1982-10-04
申请人： Tokuji Ishida , Hiroshi Hosomizu
发明人： Tokuji Ishida , Hiroshi Hosomizu
CPC分类号： G03B15/05 , G03B7/16 , G03B2215/05
摘要： A flash photography system includes an electronic flash device capable of light measurement for automatic flash light control and a camera capable of automatic shutter speed control at a daylight photography mode and at a flash photography mode. The flash device generates a flash readiness signal and a flash light control termination signal at a common terminal for the transmission of these signals to the camera through a corresponding common terminal, wherein these signals cause the camera to effect the automatic shutter speed control at the flash photography mode. The camera generates an interrupting signal at the corresponding terminal in response to a camera release operation and the electronic flash device interrupts the generation of the flash light control termination signal in response to the interrupting signal. In indicator which makes an indication in response to the flash readiness signal and the flash light control termination signal respectively is also provided in the camera.
摘要翻译： 闪光摄影系统包括能够自动闪光控制的光测量的电子闪光灯装置和能够在日光照相模式和闪光摄影模式下自动快门速度控制的照相机。 闪光灯装置在公共端产生闪光准备信号和闪光灯控制终端信号，以通过相应的公共端将这些信号传输到相机，其中这些信号使相机在闪光灯下实现自动快门速度控制 摄影模式。 相机响应于相机释放操作，相机在对应的终端产生中断信号，并且电子闪光装置响应于中断信号中断闪光灯控制终止信号的产生。 在相机中还提供响应于闪光准备信号和闪光灯控制终止信号的指示。
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公开(公告)号：US4542975A
公开(公告)日：1985-09-24
申请号：US580351
申请日：1984-02-15
申请人： Tokuji Ishida , Hiroshi Hosomizu
发明人： Tokuji Ishida , Hiroshi Hosomizu
CPC分类号： G03B7/16
摘要： In a flash photography system including an electronic flash device adapted to be combined with a camera which is adapted to transmit first and second signals to an electronic flash device and to receive third and fourth signals therefrom, and wherein the third signal informs the camera of the completed preparation for flash light emission; the first signal directs the electronic flash device to initiate flash light emission; the fourth signal directs the camera to initiate light measurement upon flash light emission; and the second signal directs the electronic flash device to terminate flash light emission in accordance with the light measurement. The electronic flash device incorporates a flash light emitting device, storage of electric power for operation of the flash light emitting device, a circuit for generating the third signal with the stored electric power exceeding a predetermined level, first, second and third terminals connected to the camera for respectively receiving the first signal, transmitting the third signal, and receiving the second signal; circuitry for initiating flash light emission in response to the first signal; circuitry for providing the fourth signal in response to the first signal; and circuitry for terminating flash light emission in response to the second signal. The circuitry is capable of modifying the third signal into the fourth signal in response to the first signal and changing the third signal into different voltages depending upon the electric power stored; and modifying the third voltage into the fourth signal if the stored power exceeds a predetermined level. Circuitry enables the third signal to connect with the second terminal in the absence of the first signal and to transmit to the second terminal the fourth signal in place of the third signal in response to the first signal.
摘要翻译： 一种闪光摄影系统，包括适于与照相机组合的电子闪光灯装置，适用于将第一和第二信号传送到电子闪光装置并从其接收第三和第四信号，并且其中第三信号通知照相机 完成闪光灯的准备; 第一信号引导电子闪光装置启动闪光发光; 第四个信号指示相机在闪光灯发光时启动光测量; 并且第二信号引导电子闪光装置根据光测量终止闪光发光。 电子闪光灯装置包括闪光发光装置，用于闪光发光装置的操作的电力的存储，用于产生具有超过预定电平的存储电力的第三信号的电路，连接到闪光发光装置的第一，第二和第三端子 相机，用于分别接收第一信号，发送第三信号，以及接收第二信号; 响应于第一信号启动闪光发射的电路; 用于响应于第一信号提供第四信号的电路; 以及用于响应于第二信号终止闪光发射的电路。 电路能够响应于第一信号将第三信号修改为第四信号，并且根据存储的电力将第三信号改变成不同的电压; 以及如果所存储的功率超过预定水平，则将所述第三电压修改为所述第四信号。 在没有第一信号的情况下，电路使得第三信号能够与第二终端连接，并且响应于第一信号而将第四信号代替第三信号发送到第二终端。
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公开(公告)号：US4469419A
公开(公告)日：1984-09-04
申请号：US418210
申请日：1982-09-15
申请人： Tokuji Ishida , Hiroshi Hosomizu
发明人： Tokuji Ishida , Hiroshi Hosomizu
CPC分类号： G03B7/16
摘要： In a flash photography system wherein an electronic flash is fired to illuminate an object to be photographed, a light measuring circuit measures the light reflected from the object and generates a stop signal when the integration of the measured light attains a given level, and the flash firing is interrupted in response to the stop signal, an indication is made when the stop signal is generated within a predetermined period from the generation of a synchro signal for firing the flash tube in conjunction with shutter opening, the period is longer than the period required for the flash tube to fully emit its light, i.e. consuming fully the charge stored in the main capacitor. The period may be approximately equal to or a little longer than a maximum flash synchronizable shutter speed. Thus, there is an indication that a proper flash photography has been made, not only when the flash firing is interrupted before the flash tube has emitted the light fully, but also when a proper exposure is attained after the full light emission of the flash tube.
摘要翻译： 在闪光照相系统中，电子闪光灯被点亮以照射待拍摄的物体，光测量电路测量从物体反射的光，并且当所测量的光的积分达到给定水平时产生停止信号，闪光灯 响应于停止信号中断点火，当在与快门打开结合的闪光灯管的同步信号的产生之后的预定时间内产生停止信号时，进行指示，该期间长于所需时间 用于闪光管充分发光，即完全消耗存储在主电容器中的电荷。 该周期可以近似等于或长于最大闪光可同步快门速度的长度。 因此，不仅在闪光灯完全发光之前闪光灯闪光中断时，还有在闪光管全光发射之后达到适当曝光的情况下，存在适当的闪光摄影的指示 。
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10.发明授权Automatic electronic flash device producing preliminary flash light and primary flash light 失效自动电子闪光装置产生初步闪光灯和主闪光灯
公开(公告)号：US4349260A
公开(公告)日：1982-09-14
申请号：US220290
申请日：1980-12-29
申请人： Tokuji Ishida , Masayoshi Sahara
发明人： Tokuji Ishida , Masayoshi Sahara
CPC分类号： G03B15/05 , G03B2215/05
摘要： An automatic electronic flash device capable of producing both a preliminary flash light used for automatic determination of a diaphragm aperture of a camera and a primary flash light used for actual photographing has signal contacts which are less in number than the signals to be transmitted from the camera to the flash device for the control of the production of the preliminary and primary flash lights. Thus, a common signal contact is used for transmission of both a preliminary flash control signal and a primary flash stop signal. The flash device is provided with a control circuit which properly delivers the two signals to a preliminary flash control circuit section and a primary flash termination circuit section of the flash device in dependence upon whether or not a synchronizing signal for initiating the production of the primary flash light appears at the synchronizing contacts. The preliminary flash control signal controls both initiation and termination of the production of the preliminary flash light in an embodiment and only termination of the production of the preliminary flash light in another embodiment, with which another signal contact is used for receiving a preliminary flash command signal for initiating the production of the preliminary flash light from the camera.
摘要翻译： 能够产生用于自动确定相机的光圈孔径的预备闪光灯和用于实际拍摄的主闪光灯的自动电子闪光灯装置具有的信号触点数量小于从相机发送的信号数量 到闪光灯设备，用于控制预备和主闪光灯的生产。 因此，公共信号触点用于传输预备闪光控制信号和主闪光灯停止信号。 闪存装置设置有控制电路，其根据是否用于开始生产主闪光灯的同步信号将两个信号正确地传送到闪光装置的初始闪光控制电路部分和主闪光终端电路部分 光线出现在同步触点上。 在另一实施例中，初步闪光控制信号控制在一个实施例中初步闪光灯的产生的起始和终止，并且仅在另一个实施例中终止预备闪光灯的产生，通过该初步闪光控制信号，另一个信号触点用于接收初步闪光指令信号 用于启动从相机产生初步闪光灯。
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