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1.发明授权Electroflash controlling circuit including a delay circuit for electrically controlled focal plane shutters 失效电闪光控制电路包括用于电控焦平面百叶窗的延迟电路
公开(公告)号：US4192595A
公开(公告)日：1980-03-11
申请号：US935985
申请日：1978-08-22
申请人： Kenji Wakazono , Yasuo Ishiguro , Toshihisa Saito
发明人： Kenji Wakazono , Yasuo Ishiguro , Toshihisa Saito
CPC分类号： G03B15/05 , G03B2215/05
摘要： An electroflash controlling circuit wherein, in order to make the fully open time of a shutter and the flashing time of a flash accurately coincide with each other, a delaying circuit operated by an electric signal for starting a shutter blade opening motion or an electric signal for starting a shutter blade closing motion is provided so that a flashing circuit may be triggered after the lapse of a delay time made by the delaying circuit.
摘要翻译： 一种电闪控制电路，其中为了使快门的完全打开时间和闪光的闪光时间彼此精确地一致，延迟电路由用于启动快门叶片打开动作的电信号或电信号操作的延迟电路 提供快门叶片关闭运动的开始，使得在延迟电路经过延迟时间之后可以触发闪光电路。
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公开(公告)号：US4210393A
公开(公告)日：1980-07-01
申请号：US932476
申请日：1978-08-10
申请人： Yasuo Ishiguro , Kenji Wakazono , Toshihisa Saito
发明人： Yasuo Ishiguro , Kenji Wakazono , Toshihisa Saito
CPC分类号： G03B7/095
摘要： An automatic diaphragm aperture controlling device which includes an exposure information pulse generation circuit to generate a pulse in a number corresponding to an aperture value to be controlled, the obtained pulses being based on exposure informations such as a scene brightness or the like. A counter circuit is provided for counting the output of the exposure information pulse generation circuit, together with an aperture value pulse generation circuit for generating pulses in a number corresponding to an aperture value of a diaphragm stopped down in association with a diaphragm drive, and diaphragm fixing means for fixing the diaphragm aperture which fixing means is actuated when an aperture value pulse number is coincident with an exposure information pulse number. The aperture value pulse generating circuit includes a light source, a photo-responsive element, and an intermittent light transmitter adapted for movement between the light source and the photoresponsive element in coupled relationship to the activation of the diaphragm.
摘要翻译： 一种自动光圈孔径控制装置，其包括曝光信息脉冲发生电路，以产生与要控制的光圈值相对应的数字的脉冲，所获得的脉冲基于诸如场景亮度等的曝光信息。 提供一个计数器电路，用于对曝光信息脉冲产生电路的输出进行计数，以及孔径值脉冲发生电路，用于产生与隔膜驱动器相关联的隔膜的孔径值对应的脉冲数，以及隔膜 固定装置，用于固定光圈孔，当光圈值脉冲数与曝光信息脉冲数一致时，固定装置被致动。 孔径值脉冲发生电路包括光源，光响应元件和适于在光源和光响应元件之间以与振动膜的激活耦合的关系运动的间歇光发射器。
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公开(公告)号：US4200375A
公开(公告)日：1980-04-29
申请号：US951453
申请日：1978-10-13
申请人： Yasuo Ishiguro , Kenji Wakazono , Toshihisa Saito
发明人： Yasuo Ishiguro , Kenji Wakazono , Toshihisa Saito
CPC分类号： G03B7/083
摘要： An exposure controlling circuit for electric shutters comprising a timer circuit which can determine a proper exposure time in response to the brightness of an object to be photographed and another time circuit which can determine the specific shortest exposure time in order to regulate the exposure time to be determined by the brightness of the object to be photographed to be less than the shortest exposure time obtainable by the inherent performance of the shutter mechanism to be used, whereby when the states of the above mentioned two time circuit started to act simultaneously in relation to the shutter release operation are reversed to each other, the shutter is closed. The above mentioned specific shortest exposure time can be selected.
摘要翻译： 一种用于电动百叶窗的曝光控制电路，包括一个定时器电路，该定时器电路可以响应于要拍摄的物体的亮度确定适当的曝光时间，另一个时间电路可以确定特定的最短曝光时间，以便将曝光时间调节为 由要被拍摄的物体的亮度确定为小于由要使用的快门机构的固有性能可获得的最短曝光时间，由此当上述两个时间电路的状态开始相对于 快门释放操作彼此相反，快门关闭。 可以选择上述特定的最短曝光时间。
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公开(公告)号：US4193673A
公开(公告)日：1980-03-18
申请号：US913348
申请日：1978-06-07
申请人： Yasuo Ishiguro , Kenji Wakazono , Toshihisa Saito
发明人： Yasuo Ishiguro , Kenji Wakazono , Toshihisa Saito
CPC分类号： G03B7/093
摘要： The digital shutter control circuit comprises a reference clock pulse generating circuit, a binary counter circuit having a plurality of output stages each issuing, upon counting the pulses from the reference pulse generating circuit, output signals corresponding to the exposure time to be set in the shutter in terms of 2.sup.n where n is an integer and a selector circuit connected to the shutter closing means and selectively connectable to any of the output stages. The binary counter circuit is actuated simultaneously with the actuation of the shutter opening means for opening the shutter so that the shutter closing means is actuated when the output signal is issued from the output stage to which the selector circuit is connected thereby closing the shutter to provide the selected shutter speed. The shutter control circuit incorporates an AND circuit the inputs of which are connected to at least two output stages selected from the plurality of output stages and the output is selectively connectable to the selector circuit so that, when connected, an exposure time is obtained which is intermediate the values obtained from the above selected two output stages. The exposure times may comprise the series of 1/1000 sec., 1/500 sec.-1/2 sec. and 1 sec. and the selected two output stages may be made 1/1000 sec. and 1/125 sec. so that substantially 1/114 sec. of the exposure time is obtained which exposure time is effective to insure the synchronization of an electric flash device with the shutter in which shutter opening and closing blades are actuated in parallel to the minor sides of the frames of 35 mm film.
摘要翻译： 数字快门控制电路包括参考时钟脉冲发生电路，具有多个输出级的二进制计数器电路，每个输出级在对来自参考脉冲发生电路的脉冲进行计数时发出对应于要设置在快门中的曝光时间的输出信号 以2n为单位，其中n为整数，选择器电路连接到快门关闭装置，并可选择性地连接到任何输出级。 二进制计数器电路与用于打开快门的快门打开装置的致动同时致动，使得当输出信号从选择器电路连接到的输出级发出时，快门关闭装置被致动从而关闭快门以提供 所选的快门速度。 快门控制电路包括AND电路，其输入连接到从多个输出级中选择的至少两个输出级，并且输出可选择性地连接到选择器电路，使得当连接时，获得曝光时间，其为 中间从上述选定的两个输出级获得的值。 曝光时间可以包括1/1000秒，1/500秒-1/2秒的系列。 和1秒。 并且所选择的两个输出级可以为1/1000秒。 和1/125秒 使得大致1/114秒。 获得曝光时间，其曝光时间有效地确保电闪光装置与快门的同步，其中快门打开和关闭叶片平行于35mm胶片的框架的次侧被致动。
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公开(公告)号：US4161764A
公开(公告)日：1979-07-17
申请号：US903401
申请日：1978-05-08
申请人： Yasuo Ishiguro , Kenji Wakazono , Toshihisa Saito
发明人： Yasuo Ishiguro , Kenji Wakazono , Toshihisa Saito
CPC分类号： G03B7/083
摘要： An exposure controlling circuit for electric shutters incorporating therein a voltage drop detecting circuit which will issue a signal for passing a current to a coil for closing a shutter when a current source voltage becomes lower than a predetermined voltage in order to prevent the shutter closing motion from being made unable to be made by the drop of the current source voltage after the shutter is opened. This controlling circuit further includes a driving circuit for making an indication within the field of vision of the view finder of a photographic camera when a signal is issued from the voltage drop detecting circuit.
摘要翻译： 一种用于电动百叶窗的曝光控制电路，其中包括电压降检测电路，当电流源电压变得低于预定电压时，该电压降检测电路将发出用于使电流通过线圈以闭合快门的信号，以防止快门关闭运动 在快门打开后，不能通过电流源电压的下降来制造。 该控制电路还包括驱动电路，用于当从压降检测电路发出信号时，在照相机的取景器的视野范围内进行指示。
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公开(公告)号：US5508773A
公开(公告)日：1996-04-16
申请号：US341757
申请日：1994-11-18
CPC分类号： G03B9/18
摘要： A focal plane shutter for use in a photographic camera in which a shutter base plate is made of a synthetic resin material and a metallic supporting plate is mounted on a front surface of the shutter base plate. Shafts pivoting levers for driving a leading blade group and trailing blade group are fixed to a front surface of the metallic supporting plate, whereas shafts pivoting arms for driving the leading blade group and the trailing blade group are fixed to a rear surface of the supporting plate. The shafts pivoting the driving arms and supporting arms protrude from a rear surface of the shutter base plate.
摘要翻译： 用于照相机的焦平面快门，其中快门基板由合成树脂材料和金属支撑板制成，安装在快门基板的前表面上。 用于驱动前刀片组和后刀片组的轴枢转杆固定到金属支撑板的前表面，而用于驱动前刀片组和后刀片组的轴枢转臂固定到支撑板的后表面 。 枢转驱动臂和支撑臂的轴从快门基板的后表面突出。
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公开(公告)号：US4162840A
公开(公告)日：1979-07-31
申请号：US888384
申请日：1978-03-20
申请人： Osamu Ooba , Katsumi Kaneko , Nobuyoshi Inoue , Toshihisa Saito
发明人： Osamu Ooba , Katsumi Kaneko , Nobuyoshi Inoue , Toshihisa Saito
CPC分类号： G03B9/18
摘要： A focal plane shutter comprising a pair of upper arms rotatably supported on a shutter base plate and arranged with a spacing between them, a pair of lower arms overlapped respectively on said pair of upper arms with a spacing, three main shutter blades respectively supported by said upper arms so as to have overlapped portions even when developed between the respective pairs of upper arms and lower arms, and two auxiliary shutter blades respectively supported by the lower arms so as to overlap on the above mentioned overlapped portions when developed between the respective pairs of the upper arms and lower arms, in order to make the entire shutter device or particularly the dimensions in the vertical direction smaller. Tail portions are formed respectively at the free ends of the main shutter in the middle and the auxiliary shutter blades.
摘要翻译： 一种焦平面快门，包括一对可旋转地支撑在快门基板上并以它们之间的间隔布置的上臂，一对下臂分别以间隔重叠在所述一对上臂上，三个主快门叶片分别由所述 即使在各对上臂和下臂之间显影时也具有重叠部分，以及分别由下臂支撑以便在上述重叠部分之间重叠的两个辅助快门叶片， 上臂和下臂，以使整个快门装置或特别是垂直方向的尺寸更小。 尾部分别形成在中间的主快门的自由端和辅助快门叶片上。
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公开(公告)号：US20100172150A1
公开(公告)日：2010-07-08
申请号：US12629246
申请日：2009-12-02
CPC分类号： G02B6/0018 , G02B6/0016 , G02B6/0041
摘要： To solve an uneven light quantity caused in a case where a light guide plate, in which light from a spot light source such as an LED enters an surface, changes by 90 degrees and exits the light to the outside, is used as a backlight. The light guide plate of the invention includes a light flux unifying region. The light flux unifying region has an incident surface, a first surface, and an exit surface. Light fluxes emitted from a light source enter the incident surface. The first surface is almost perpendicular to the incident surface and the intensity distribution of the light fluxes having entered is unified at the first surface. The exit surface is disposed almost parallel with the incident surface and the unified light fluxes exit from the exit surface. A boundary line between the incident surface and the first surface has a zigzag surface.
摘要翻译： 为了解决在来自诸如LED的点光源的光进入表面的光的导光板变为90度并且将光离开到外部的情况下引起的不均匀的光量被用作背光。 本发明的导光板包括光通量区域。 光通量区域具有入射表面，第一表面和出射表面。 从光源发射的光通量进入入射面。 第一表面几乎垂直于入射表面，并且已经进入的光束的强度分布在第一表面是统一的。 出射面几乎与入射面平行，并且统一的光束从出射面出射。 入射表面和第一表面之间的边界线具有锯齿形表面。
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公开(公告)号：US4302091A
公开(公告)日：1981-11-24
申请号：US100139
申请日：1979-12-04
CPC分类号： G03B9/18
摘要： A bound preventing device for focal plane shutters which is provided with a rear blade operating arm which can move a rear blade between an exposure aperture covering position and opening position and a brake lever which is set in the motion track of the rear blade operating arm and can collide with a rear blade operating lever in order to control the rear blade operating arm in the final stage of the motion of the rear blade operating arm so as to prevent bounds when the motion of the rear blade ends. This brake lever can also catch the rear blade operating arm when it collides with the rear blade operating arm.
摘要翻译： 一种用于焦平面百叶窗的结合防止装置，其设置有后刀片操作臂，该后刀片操作臂可以使曝光孔盖覆盖位置和打开位置之间移动后刀片，以及设置在后刀片操作臂的运动轨迹中的制动杆， 可以与后刀片操作杆碰撞，以便在后刀片操作臂的运动的最后阶段中控制后刀片操作臂，以便防止后刀片的运动结束时的界限。 当与后刀片操作臂碰撞时，该制动杆也可以抓住后刀片操作臂。
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公开(公告)号：US4739355A
公开(公告)日：1988-04-19
申请号：US96943
申请日：1987-09-15
申请人： Toshihisa Saito
发明人： Toshihisa Saito
CPC分类号： G03B9/18
摘要： In order to enable to obtain stable exposure time even for successive photographing at high speeds and completely synchronize flashing without errors, the focal plane shutter comprising a front blade group and a rear blade group is adapted in such a manner that the rear blade group is returned to its start position (folded position) substantially at the final stage of the shutter cocking travel, a retaining lever for locking the rear balde group at the unfolded position (position covering the exposure aperture) during the shutter cocking operation functions as a brake member for the rear blade operating lever, and said focal plane shutter is equipped with a movable X-contact lever which is retained at a position apart from a fixed contact by a front blade actuating arm during and after the shutter cocking operation and maintained at a position apart from the fixed contact by an X-contact release lever operated by the rear blade operating lever for the time from completion of the exposure operation to completion of the former half of the shutter cocking travel.
摘要翻译： 为了能够即使对高速连续拍摄也可以获得稳定的曝光时间，并且完全同步闪烁而没有错误，所以包括前叶片组和后叶片组的焦平面遮板适于使后叶片组返回 到达起始位置（折叠位置）时，在快门启动操作期间，用于将后秃秃组锁定在展开位置（覆盖曝光孔的位置）的保持杆用作制动构件 后刀片操作杆和所述焦平面快门配备有可移动的X接触杆，其在快门起动操作期间和之后被前刀片致动臂保持在与固定触点隔开的位置处并保持在分开的位置 从通过后刀片操作杆操作的X接触释放杆从固定接触开始完成曝光 重新操作完成前半部快门快门行程。
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