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公开(公告)号：US3706011A
公开(公告)日：1972-12-12
申请号：US3706011D
申请日：1971-05-14
申请人： VINCENT ANDREW W
发明人： VINCENT ANDREW W
摘要： A DRIVE CIRCUIT FOR RAPID ENERGIZATION OF A SOLENOID, RELAY, OR OTHER ELECTROMAGNETIC DEVICE. THE CIRCUIT DEVELOPS A RELATIVELY HIGH VOLTAGE AT ITS OUTPUT FOR A CONTROLLABLY VARIABLE, BRIEF PERIOD TO INITIATE MOTION OF THE DRIVEN DEVICE. THIS IS FOLLOWED BY A BRIEF INTERVAL DURING WHICH CURRENT THROUGH THE DEVICE IS EFFECTIVELY CUT OFF, AND THEREAFTER A RELATIVELY LOW HOLDING VOLTAGE IS DEVELOPED TO MAINTAIN THE DEVICE PARTLY OR FULLY ENERGIZED. SERVO MEANS ARE PROVIDED FOR SENSING THE ADVANCE OF THE DEVICE AND FOR CONTROLLING THE HOLDING VOLTAGE TO KEEP THE DEVICE AT A PREDETERMINED POSITION FOR AS LONG AS DESIRED.
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公开(公告)号：US3703649A
公开(公告)日：1972-11-21
申请号：US3703649D
申请日：1971-09-29
申请人： NIPPON KOGAKU KK
发明人： MAIDA OSAMU
摘要： A timer circuit for actuating a camera including first and second timing circuits and first and second start control circuits. Each timing circuit consists of an integration time constant circuit having a resistor and a capacitor connected in series, a level detecting and trigger circuit and a hold circuit. The first and second start control circuits are interconnected between a power source and the first and second timing circuits, respectively, in such a manner that each start control circuit is connected or disconnected by a control signal derived from the other start control circuit. The timing circuits are alternately actuated by said start control circuits, and the outputs from the two timing circuits are applied to an AND gate to generate an actuating signal for controlling the camera. Switches are provided in the timer circuit so as to selectively establish said timer circuit in one of various modes of operation.
摘要翻译： 一种用于致动包括第一和第二定时电路以及第一和第二启动控制电路的照相机的定时器电路。 每个定时电路由具有串联连接的电阻器和电容器的积分时间常数电路，电平检测和触发电路以及保持电路组成。 第一和第二启动控制电路分别在电源和第一和第二定时电路之间互连，使得每个启动控制电路通过从另一启动控制电路导出的控制信号连接或断开。 定时电路由所述启动控制电路交替驱动，并且来自两个定时电路的输出被施加到与门以产生用于控制摄像机的致动信号。 在定时器电路中提供开关，以便以各种操作模式之一选择性地建立所述定时器电路。
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公开(公告)号：US3698300A
公开(公告)日：1972-10-17
申请号：US3698300D
申请日：1970-08-14
申请人： MINOLTA CAMERA KK
发明人： KOBORI TOSHIO
CPC分类号： G03B9/58
摘要： In an electric shutter mechanism for a camera the shutter is retained in a cocked position and held there by an operating member when exposure time setting is set for a bulb exposure so as to reduce the power consumed from the battery in maintaining energization of the circuitry normally retaining the shutter in a cocked position.
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公开(公告)号：US3662664A
公开(公告)日：1972-05-16
申请号：US3662664D
申请日：1966-06-06
申请人： CANON CAMERA CO
发明人： GOSHIMA TAKESHI
CPC分类号： G03B9/22
摘要： Lens shutter for a camera in which the shutter blades determine the exposure time and the diaphragm opening, the shutter blades being rotatably mounted on one rotatable ring and interconnected with a second ring rotatable relative to the first ring, a governor mechanism being provided on either of the two rings and cooperating with the other of the two rings to provide a shutter speed control in accordance with the diaphragm setting.
摘要翻译： 其中快门叶片确定曝光时间和光阑开口的相机的透镜快门，快门叶片可旋转地安装在一个可旋转的环上并且与可相对于第一环可旋转的第二环互连，调节器机构设置在 两个环，并与两个环中的另一个配合，以根据隔膜设置提供快门速度控制。
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公开(公告)号：US3654846A
公开(公告)日：1972-04-11
申请号：US3654846D
申请日：1970-04-01
摘要： An electromagnetically driven mechanical shutter including a conductor element in a magnetic field for enabling the element to be moved laterally between first and second predetermined positions as a function of the current through the element, means, associated with the element, for introducing current therethrough and stop means associated with the element and adjacent one or both of the positions for positively establishing one or both of the positions of the element. A plurality of such shutters may be included in a linear array which may be combined with a source of radiation to be gated by the shutters to expose a photosensitive material to be printed upon and further combined with photosensitive means for sensing radiation from an object carrying information to be read.
摘要翻译： 一种电磁驱动的机械快门，其包括在磁场中的导体元件，用于使得元件能够在第一和第二预定位置之间横向移动，作为通过元件的电流的函数，与元件相关联的装置，用于引入电流并停止 与元件相关联的并且相邻的一个或两个位置的装置，用于肯定地建立元件的一个或两个位置。 多个这样的快门可以被包括在线性阵列中，该线性阵列可以与要被快门门控的辐射源组合以暴露要被打印的感光材料，并且与感光装置进一步组合以感测来自携带信息的物体的辐射 要读
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公开(公告)号：US3645189A
公开(公告)日：1972-02-29
申请号：US3645189D
申请日：1969-03-11
CPC分类号： H05B41/325 , G03B15/0452
摘要： A flashgun using flashbulbs is provided for taking photographs by artificial light. The ignition of the flashbulb is initiated by the flash contact of the camera and an ignition circuit is connected to a primary coil of a transformer. The secondary coil of the transformer is connected to the firing circuit of a thyristor which on conduction energizes an electromagnet of a locking device for holding a shutter in front of the flashbulb in the open position. An electronic switching device including a photosensitive resistor controls a holding magnet cooperating with the drive of the shutter for releasing the shutter at the end of a time interval formed by the electronic switching device in order to allow the shutter to close.
摘要翻译： 提供使用闪光灯的快闪灯用于通过人造光拍摄照片。 闪光灯的点火由相机的闪光触点开始，点火电路连接到变压器的初级线圈。 变压器的次级线圈连接到晶闸管的点火电路，该晶闸管的导通激励用于将闪光灯前面的快门保持在打开位置的锁定装置的电磁体。 包括感光电阻器的电子开关装置控制与快门驱动器配合的保持磁体，用于在由电子开关装置形成的时间间隔结束时释放快门，以允许快门关闭。
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公开(公告)号：US3611901A
公开(公告)日：1971-10-12
申请号：US3611901D
申请日：1966-03-08
发明人： FAHLENBERG PAUL
摘要： Electronic apparatus for controlling an adjustable part of a photographic camera. The control arrangement is set into operation by an electric impulse, produced by movement of a manually movable member to initiate the control operation. In one embodiment (FIGS. 1-14), the initiating electric impulse serves to activate a resistance bridge which comes into balance and stops further movement when a movable adjustable part on the camera reaches a position corresponding to that of a manually movable member on a control box, which may be located at a point remote from the adjustable part on the camera. In this embodiment, the adjustable part on the camera may serve to adjust a diaphragm aperture, or a shutter speed control member, or a focusing member. In a second embodiment (FIGS. 15-17), the initiating electric impulse serves to activate transistorized electronic circuitry which controls the extent of a first exposure delay period (prior to opening the shutter blades) and also the extent of a second exposure delay period while the blades are open, thus determining the duration or speed of the exposure.
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公开(公告)号：US3599548A
公开(公告)日：1971-08-17
申请号：US3599548D
申请日：1970-04-13
申请人： AGFA GEVAERT AG
发明人： HENNIG FRIDOLIN
摘要： A release for motion picture cameras or still cameras wherein the deformation of a diaphragm results in closing of a switch which can open the shutter. A knob is mounted close to the diaphragm and is displaceable by the finger which exerts a deforming stress on the diaphragm to thereby close a second switch which can complete the circuit of the exposure control and/or a battery tester. The knob surrounds at least a portion of the diaphragm to facilitate simultaneous application of finger pressure against the knob and against the central part of the diaphragm.
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公开(公告)号：US3584560A
公开(公告)日：1971-06-15
申请号：US3584560D
申请日：1968-07-25
发明人： SCHILL HERMANN
CPC分类号： G03B9/58
摘要： A camera shutter with a shutter housing and an electronic timing device in the shutter housing. The housing is formed by a base and a separate cylindrical housing wall mounted on the base. The housing wall has a recess extending in a circumferential direction and a conductor plate is mounted on the housing wall in the recess. The conductor plate has components of the electronic timing device thereon.
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公开(公告)号：US3550513A
公开(公告)日：1970-12-29
申请号：US3550513D
申请日：1968-09-03
申请人： POLAROID CORP
CPC分类号： G03B9/58 , Y10T74/20636
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