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公开(公告)号：US4137541A
公开(公告)日：1979-01-30
申请号：US619456
申请日：1975-10-03
申请人： Yukio Mashimo , Masanori Uchidoi , Masayoshi Yamamichi , Fumio Ito , Tokuichi Tsunekawa , Tadashi Ito
发明人： Yukio Mashimo , Masanori Uchidoi , Masayoshi Yamamichi , Fumio Ito , Tokuichi Tsunekawa , Tadashi Ito
CPC分类号： G03B7/097
摘要： An automatic exposure control apparatus for controlling the diaphragm of the camera in accordance with the preselected shutter time and the exposure value, in which a digital-to-analog converter having a counter responsive to the number of pulses supplied from a clock pulse generator through a gate produces a time variable output capable of attaining a certain level dependent upon the preselected shutter time and a light value as photoelectrically sensed, that is, an exposure value and, which is detected by a first comparator. The output of the first comparator is applied to the gate, so that the converter is set to memorize the exposure value therein. As the diaphragm presetting ring is moved from the maximum to minimum aperture position with production of a time variable output from a signal generator associated therewith, a second comparator responsive to the attainment of the time variable output of the signal generator to a level dependent upon the final output of the set converter produces an output which is applied to arresting means for the diaphragm presetting ring. This results in automatic adjustment of the position of the presetting ring. At the time the presetting ring begins to move, the diaphragm driving means is actuated causing the diaphragm means to be brought into engagement with the ring. Thus, an effective exposure aperture is established in the diaphragm means.
摘要翻译： 一种自动曝光控制装置，用于根据预选的快门时间和曝光值控制照相机的光圈，其中具有计数器的数模转换器响应于从时钟脉冲发生器通过一个 栅极产生能够获得一定水平的时间变量输出，这取决于预选的快门时间和光电感测的光值，即曝光值，并由第一比较器检测。 将第一比较器的输出施加到栅极，使得转换器被设置为存储其中的曝光值。 由于膜片预设环从最大孔径位置移动到最小孔径位置，产生与其相关联的信号发生器的时间变量输出，第二比较器响应于将信号发生器的时间可变输出达到取决于 设定转换器的最终输出产生一个输出，该输出应用于隔膜预调环的止动装置。 这样可以自动调节预置环的位置。 在预置环开始移动时，驱动隔膜驱动装置使隔膜装置与环接合。 因此，在隔膜装置中建立有效的曝光孔径。
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32.发明授权
公开(公告)号：US4124855A
公开(公告)日：1978-11-07
申请号：US807653
申请日：1977-06-17
申请人： Masanori Uchidoi , Hideaki Miyakawa , Hiroshi Aizawa , Masayoshi Yamamichi , Osamu Ohshima , Tokuichi Tunekawa
发明人： Masanori Uchidoi , Hideaki Miyakawa , Hiroshi Aizawa , Masayoshi Yamamichi , Osamu Ohshima , Tokuichi Tunekawa
CPC分类号： G03B7/085
摘要： An automatic exposure control apparatus of electric type for a photographic camera having an exposure control parameter setting means cooperative with a geometrical progression scale in isometric graduation is provided with a resistor device. The device includes a variable resistor having a grounded slider associated with the setting means upon movement thereof for providing a resistor value proportional to the amount of movement of the setting means, but to the reciprocal logarithm of the preselected parameter value. In order to minimize the complexity of a computer circuit responsive to the various outputs of the resistor device for performing photographic Appex computation, a bias voltage is applied to each of the variable resistors in a manner to produce a signal in the form of current proportional to the reciprocal of the amount of movement of the setting means. The resistor device has a single substrate having a plurality of resistor elements formed thereon by a metal coating technique and arranged for cooperation with respective sliders, thereby improving the exposure control accuracy and stabilization of the performance of the computer circuit against variation of temperature distribution in the apparatus.
摘要翻译： 具有电阻器装置的具有具有与等距离刻度上的几何级数相配合的曝光控制参数设定装置的照相机电式的自动曝光控制装置。 该装置包括可变电阻器，其具有与设置装置相关联的接地滑块，用于提供与设置装置的移动量成比例的电阻器值，而与预设参数值的倒数对数相对应。 为了最小化响应于用于执行照相Appex计算的电阻器装置的各种输出的计算机电路的复杂性，将偏压施加到每个可变电阻器，以产生与电流成比例的电流形式的信号 设定装置的移动量的倒数。 电阻器件具有通过金属涂覆技术形成在其上的多个电阻器元件的单个基板，并被布置为与各个滑块配合，从而提高了曝光控制精度，并且稳定了计算机电路的性能以防止温度分布的变化 仪器。
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公开(公告)号：US4099192A
公开(公告)日：1978-07-04
申请号：US764291
申请日：1977-01-31
申请人： Hiroshi Aizawa , Masanori Uchidoi , Hideaki Miyakawa , Masayoshi Yamamichi , Yukio Iura , Masahisa Fukui
发明人： Hiroshi Aizawa , Masanori Uchidoi , Hideaki Miyakawa , Masayoshi Yamamichi , Yukio Iura , Masahisa Fukui
摘要： A photographic camera having a magnetic actuating device associated with an electronic control device for initiating a release of one or more of the camera mechanisms from the cocked position thereof. In one embodiment of the invention, the magnetic actuating device comprises a single magnetic winding with a core material having a substantially rectangular hysteresis loop, and an armature of which the movement is controlled by the polarity of the magnetic winding and which is connected to spring-biased means for latching the mechanism in the cocked position. After the core is magnetized by applying a voltage to the magnetic winding for a relatively short period to hold the armature with the latching means in the cocked position against the force of the spring, the magnetic winding is energized by an output of the opposite polarity from the electronic control device causing the armature to move away from the core, whereby the release of the mechanism is initiated.
摘要翻译： 一种具有与电子控制装置相关联的磁性致动装置的照相机，用于启动一个或多个照相机机构从其起始位置的释放。 在本发明的一个实施例中，磁致动装置包括具有大体上矩形磁滞回线的芯材的单个磁性绕组，以及电枢，其运动由磁性绕组的极性控制， 用于将机构锁定在被压缩位置的偏压装置。 在通过向磁性绕组施加电压相对较短的时间来使磁芯磁化之后，克服弹簧的力将锁定装置保持在锁定装置中的电枢，磁绕组由相反极性的输出激励 所述电子控制装置使所述电枢远离所述芯部移动，从而启动所述机构的释放。
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公开(公告)号：US4083059A
公开(公告)日：1978-04-04
申请号：US717950
申请日：1976-08-26
申请人： Tokuichi Tsunekawa , Zenso Nakamura , Tetsuya Taguchi , Masanori Uchidoi , Hiroshi Aizawa , Takashi Uchiyama
发明人： Tokuichi Tsunekawa , Zenso Nakamura , Tetsuya Taguchi , Masanori Uchidoi , Hiroshi Aizawa , Takashi Uchiyama
CPC分类号： G03B15/05 , G03B2215/05 , G03B2215/0514
摘要： In a camera provided with a day-light exposure range and with a flash exposure range, an automatic exposure control system for controlling the iris of the camera in accordance with a computed exposure value and a preselected shutter time is associated with a flash exposure time range bracketing device in order to insure that the formation of a correct flash exposure aperture is effected with automatic selection of one of the bracketed exposure times despite an accidentally incorrect setting of the shutter dial of the camera which may be encountered particularly when the day-light exposure range is to be left for the flash exposure range without the necessary manipulation of the shutter dial therefor. The bracketing device of the present invention comprises three timing circuits in combination with a selector responsive to the position of the shutter dial for selecting either the first, or the second, or the third timing circuit for cooperation with an electronic switch controlling the period of actuation of the camera shutter when the shutter dial is set either within, or on the faster side of, or on the slower side of a possible flash exposure time range respectively, whereby the resultant actuation period is equal to either the shutter time preselected on the shutter dial, or the faster limit of, or the slower limit of the flash exposure time range respectively.
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35.发明授权
公开(公告)号：US4062024A
公开(公告)日：1977-12-06
申请号：US618125
申请日：1975-09-30
申请人： Tokuichi Tsunekawa , Masanori Uchidoi , Masami Shimizu , Masayoshi Yamamichi , Keiya Murayama , Hiroshi Aizawa
发明人： Tokuichi Tsunekawa , Masanori Uchidoi , Masami Shimizu , Masayoshi Yamamichi , Keiya Murayama , Hiroshi Aizawa
CPC分类号： G03B7/083 , G03B7/0807
摘要： The present invention relates to a control system consisting of a semi-conductor integrated circuit for a camera, particularly a control system from providing secure operation as well as a reduction of complexity. The system provides for separation of actuating signals from the low level signals for the integrated circuit so as to prevent added noise of the actuating signals from mixing with the low level signal.
摘要翻译： 本发明涉及一种由相机的半导体集成电路组成的控制系统，特别是提供安全操作的控制系统以及复杂性的降低。 该系统用于将致动信号与用于集成电路的低电平信号分离，以防止致动信号的附加噪声与低电平信号混合。
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公开(公告)号：US4020433A
公开(公告)日：1977-04-26
申请号：US539048
申请日：1975-01-07
CPC分类号： G03B7/083 , H01F7/064 , H01F7/1646 , H01F2007/1692 , H01F7/122
摘要： The device includes a permanent magnet for attracting a movable iron armature. A pair of elongated rectilinear magnetic bodies have planar pole faces at one end facing the iron armature, and the permanent magnet is sandwiched between these two magnetic members intermediate their ends, with the permanent magnet extending perpendicularly to the magnetic members. Respective magnetizing windings embrace each magnetic member between the permanent magnet and the pole faces of the members, to produce a magnetic flux in the magnetic members opposing the flux provided by the permanent magnet so as to release the iron armature. In one embodiment of the invention, the other ends of the members, projecting beyond the permanent magnet, are angled to face each other to provide an air gap therebetween. In a second embodiment of the invention, the magnetic members or yokes have respective second windings thereon, beyond the permanent magnet, and the ends of these yokes, beyond the second windings, are formed with planar pole faces for operative association with a second iron armature. Both iron armatures are spring biased to disengage the magnetic yokes or members. As the permanent magnet engages the yokes intermediate their ends, the magnetic flux path due to the magnetizing windings does not include the permanent magnet and therefore an effective armature releasing magnetic flux can be provided with only a relatively small current supplied to the magnetizing windings.
摘要翻译： 该装置包括用于吸引可动铁衔铁的永磁体。 一对细长直线磁体在与铁电枢相对的一端具有平面的极面，并且永磁体被夹在这两个磁性部件之间的中间，永磁体垂直于磁性部件延伸。 各个磁化绕组包括永磁体和构件的极面之间的每个磁性构件，以在磁性构件中产生与由永磁体提供的磁通相对的磁通量，以便释放铁衔铁。 在本发明的一个实施例中，突出超过永磁体的构件的另一端成角度以彼此面对以在它们之间提供气隙。 在本发明的第二实施例中，磁性构件或轭在其上具有超过永磁体的相应的第二绕组，并且这些磁轭的超过第二绕组的端部形成有平面极面，用于与第二铁衔铁 。 两个铁电枢都被弹簧偏压以使磁轭或构件脱离。 由于永磁体在其端部之间接合轭铁，所以由于磁化绕组而导致的磁通路径不包括永久磁铁，因此可以仅提供给磁化绕组的相对较小的电流提供有效的电枢释放磁通量。
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公开(公告)号：US4387977A
公开(公告)日：1983-06-14
申请号：US85230
申请日：1979-10-16
CPC分类号： G03B7/26
摘要： The disclosed camera power control devices operate with a camera in which a first switch responds to initial movement of a shutter release member, and a second switch responds to further movement of the release member. In the power control device, turning the first switch on energizes the light metering and display circuits, and turning on the second switch supplies an exposure control circuit such as a shutter control circuit with electrical energy. The power control device is provided with an electrical timer circuit, and a selection arrangement operates to selectively actuate the timer circuit when the release member is returned to its rest position and the first switch changes is state from ON to OFF. During a period of time determined by the timer circuit, power continues to be supplied to operate the light metering and display circuits.
摘要翻译： 所公开的照相机功率控制装置与其中第一开关响应快门释放构件的初始移动的照相机一起操作，并且第二开关响应于释放构件的进一步移动。 在功率控制装置中，转动第一开关使得计量和显示电路通电，并且打开第二开关为电能提供诸如快门控制电路的曝光控制电路。 功率控制装置设置有电定时器电路，并且当释放构件返回到其静止位置并且第一开关从接通变为断开状态时，选择装置用于选择性地启动定时器电路。 在由定时器电路确定的时间段期间，继续供电以操作测光和显示电路。
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公开(公告)号：US4370037A
公开(公告)日：1983-01-25
申请号：US21188
申请日：1979-03-16
申请人： Masanori Uchidoi , Tomonori Iwashita , Tetsuya Taguchi , Yukio Iura , Toshikazu Ichiyanagi , Hiroshi Aizawa
发明人： Masanori Uchidoi , Tomonori Iwashita , Tetsuya Taguchi , Yukio Iura , Toshikazu Ichiyanagi , Hiroshi Aizawa
CPC分类号： G03B7/093 , G03B7/0807
摘要： A camera having an exposure control device or, more particularly, having a digital control circuit for controlling exposure. Sequence control over a photographing operation and control over a display operation are both accomplished by the same sequence control circuit, which is simplified and yet permits selection between self-timer photographing and ordinary photographing operations.
摘要翻译： 具有曝光控制装置的照相机，更具体地，具有用于控制曝光的数字控制电路。 对拍摄操作的顺序控制和对显示操作的控制都由相同的序列控制电路来实现，该顺序控制电路被简化并且允许在自拍拍摄和普通拍摄操作之间进行选择。
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公开(公告)号：US4358188A
公开(公告)日：1982-11-09
申请号：US39388
申请日：1979-05-15
申请人： Masanori Uchidoi , Tadashi Ito
发明人： Masanori Uchidoi , Tadashi Ito
摘要： In the disclosed camera with a program shutter, exposure control with a desired combination of shutter time and diaphragm value is made possible without variation of the gradient of the program curve, by shifting the program constant a specific amount.
摘要翻译： 在所公开的具有程序快门的相机中，通过将程序常数移动到特定量，使得具有期望的组合快门时间和光圈值的曝光控制成为可能，而不改变节目曲线的梯度。
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公开(公告)号：US4351597A
公开(公告)日：1982-09-28
申请号：US4269
申请日：1979-01-17
CPC分类号： G03B17/425
摘要： A release control device for controlling initiation of a release of various portions of a camera by means of an electromagnet. When a shutter release button is maintained depressed to make a continuous series of frame exposures as by the help of a motor drive unit, the device defers initiation of each release operation pending completion of the returning movement of a resetting mechanism to its idle position.
摘要翻译： 一种释放控制装置，用于通过电磁体控制照相机各部分的释放。 当快门释放按钮被保持按压以通过电机驱动单元的帮助进行连续的一系列框架曝光时，在复位机构返回到其空转位置的完成之前，该装置延迟每次释放操作的启动。
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