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公开(公告)号：US4395098A
公开(公告)日：1983-07-26
申请号：US309385
申请日：1981-10-07
CPC分类号： G03B7/083
摘要： The present invention relates to a shutter time control circuit for a camera having a focal plane shutter and a timer circuit for counting the shutter time in a digital way. In accordance with the present invention a preset means for presetting the amount of the overlapping of the shutter curtain and/or the response delay of the magnet on the timer circuit as digital values is provided in such a manner that the clock time is compensated in accordance with the preset digital value so as to compensate the exposure error due to the overlapping amount of the shutter curtains and so on, which makes it possible to offer a digital exposure compensation device suited for the camera having a shutter control circuit for digitally controlling the shutter time.
摘要翻译： 本发明涉及一种用于具有焦平面快门和定时器电路的照相机的快门时间控制电路，用于以数字方式对快门时间进行计数。 根据本发明，一种预设装置，用于将定时器电路上的快门帘幕的重叠量和/或磁体的响应延迟量预设为数字值，使得时钟时间按照 具有预设的数字值，以补偿由于快门帘等的重叠量引起的曝光误差，这使得可以提供适合于具有用于数字控制快门的快门控制电路的相机的数字曝光补偿装置 时间。
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公开(公告)号：US4363540A
公开(公告)日：1982-12-14
申请号：US762514
申请日：1977-01-26
申请人： Yoshiyuki Takishima , Yukio Mashimo , Masanori Uchidoi , Hiroshi Aizawa , Bernhard H. Andresen , Robert C. Martin , Stephen C. Kwan
发明人： Yoshiyuki Takishima , Yukio Mashimo , Masanori Uchidoi , Hiroshi Aizawa , Bernhard H. Andresen , Robert C. Martin , Stephen C. Kwan
CPC分类号： G03B7/093
摘要： A storage device for storing photographic exposure information employs a closed-loop analog-to-digital (A-D) converter circuit includes a counter and a digital-to-analog (D-A) converter. The influence of erroneous signals which are created at the output of the D-A converter when the exposure information is stored in the counter is eliminated. The D-A converter circuit employs a ladder network of coarse accuracy. The stored exposure value, however, is highly accurate because of the closed-loop nature of the A-D converter circuit. Means responsive to the stored value for operating the exposure system of the camera are disclosed.
摘要翻译： 用于存储照相曝光信息的存储设备采用闭环模数（A-D）转换器电路，其包括计数器和数模（D-A）转换器。 当曝光信息存储在计数器中时，在D-A转换器的输出端产生的错误信号的影响被消除。 D-A转换器电路采用粗略的梯形网络。 然而，存储的曝光值由于A-D转换器电路的闭环特性而高度精确。 公开了响应用于操作照相机的曝光系统的存储值的装置。
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公开(公告)号：US4349263A
公开(公告)日：1982-09-14
申请号：US144981
申请日：1980-04-30
摘要： In the exposure time control device disclosed, a first timer sets a first time interval equal to a desired exposure time but establishes an exposure time in the shutter different from the desired exposure time. A second timing arrangement forms a compensation time interval. Suitable means maintain the opening of the shutter for a total time equal to the given time interval and the compensation time interval so that the shutter is open for the desired exposure time. A control shortens the given time interval formed by the first timing arrangement by a predetermined time interval so that the given time interval formed is shorter than the desired exposure time. This permits compensation not only for errors which tend to shorten the exposure time, but also those which tend to lengthen the exposure time.
摘要翻译： 在所公开的曝光时间控制装置中，第一定时器设置等于期望曝光时间的第一时间间隔，但是在快门中建立与期望的曝光时间不同的曝光时间。 第二定时装置形成补偿时间间隔。 合适的装置保持快门的打开总时间等于给定的时间间隔和补偿时间间隔，使得快门打开所需的曝光时间。 控制将由第一定时装置形成的给定时间间隔缩短预定时间间隔，使得形成的给定时间间隔短于期望的曝光时间。 这样可以补偿不仅会缩短曝光时间的错误，而且可以延长曝光时间延长的错误。
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公开(公告)号：US4329034A
公开(公告)日：1982-05-11
申请号：US175950
申请日：1980-08-07
申请人： Hiroyasu Murakami , Masanori Uchidoi , Masayoshi Yamamichi , Nobuhiko Shinoda , Masayuki Suzuki , Tadashi Ito
发明人： Hiroyasu Murakami , Masanori Uchidoi , Masayoshi Yamamichi , Nobuhiko Shinoda , Masayuki Suzuki , Tadashi Ito
CPC分类号： G03B7/087
摘要： In the disclosed camera, an exposure value determining arrangement produces an electrical signal in response to a light measuring facility and a film sensitivity setting device. An exposure factor unit determines a combination of shutter speed and aperture value for a proper exposure in response to the exposure value determining arrangement. A control connected to the exposure factor unit varies the combination of exposure factors in the exposure factor unit in response to the set position of a program constant setting arrangement which is set for a particular program constant.
摘要翻译： 在所公开的相机中，曝光值确定装置响应于光测量设备和胶片感光度设置而产生电信号。 曝光因子单元响应于曝光值确定装置确定适当曝光的快门速度和光圈值的组合。 连接到曝光因子单元的控制响应于针对特定节目常数设置的节目恒定设置布置的设置位置来改变曝光因子单元中的曝光因子的组合。
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公开(公告)号：US4265521A
公开(公告)日：1981-05-05
申请号：US733794
申请日：1976-10-19
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：US4223987A
公开(公告)日：1980-09-23
申请号：US907853
申请日：1978-05-19
申请人： Masami Shimizu , Masanori Uchidoi , Nobuaki Date , Hiroshi Aizawa
发明人： Masami Shimizu , Masanori Uchidoi , Nobuaki Date , Hiroshi Aizawa
CPC分类号： G03B17/40 , G03B17/18 , G03B7/0807
摘要： In the disclosed camera a sound-making element is provided to produce warning signals or confirming signals for operation of a self-timer. A binary counter which digitally controls the camera controls the sound-making element. Warning signals and confirming signals for operation of a self-timer are distinguished from each other by a difference in oscillation pulses.
摘要翻译： 在所公开的相机中，提供声音元件以产生警告信号或确认用于自拍定时器的操作的信号。 数码控制相机的二进制计数器控制声音元素。 通过振荡脉冲的差异来区分用于自拍的操作的警告信号和确认信号。
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公开(公告)号：US4206987A
公开(公告)日：1980-06-10
申请号：US927826
申请日：1978-07-25
CPC分类号： G03B17/425 , G03B7/00 , G03B7/0807
摘要： In the combination of a camera and a motor drive unit, an exposure adjusting device is provided. This exposure adjusting device is manually controllable either by rotating a diaphragm adjusting ring that is in engagement with a presetting ring. This rotation is followed up by a scanning member which is coupled to a variable resistor that is connected in a control circuit for an exposure meter to attain correct adjustment of the diaphragm value and shutter time in conformity with the available light conditions. This exposure adjusting device also is automatically controllable through operative connection of the diaphragm scanning member with a control member which is provided in the unit. The control member movement is initiated and terminated by means of an electromagnetic actuator and arrest respectively with electrical power supply from a unit battery. With the camera detached from the unit, manually presetting the diaphragm is only selective, but the consumption of electrical energy from the camera battery is minimized. The driving torque of the film winding lever, moreover, is reduced by an amount necessary to overcome a strong drive spring for the diaphragm scanning control member.
摘要翻译： 在相机和马达驱动单元的组合中，提供曝光调节装置。 该曝光调节装置可以通过旋转与预设环接合的隔膜调节环来手动控制。 该旋转后跟扫描构件，该扫描构件连接到可变电阻器，该可变电阻器连接在用于曝光计的控制电路中，以根据可用的光条件来正确调节光阑值和快门时间。 该曝光调节装置也可以通过隔膜扫描构件与设置在该单元中的控制构件的操作连接来自动控制。 控制构件的移动通过电磁致动器启动和终止，分别由单元电池供电。 将相机从本机上拆下后，手动调节隔膜只是选择性的，但相机电池的电能消耗最小化。 此外，胶片卷绕杆的驱动扭矩减小了克服用于隔膜扫描控制构件的强驱动弹簧所需的量。
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68.发明授权
公开(公告)号：US4200374A
公开(公告)日：1980-04-29
申请号：US935878
申请日：1978-08-23
申请人： Masami Shimizu , Masanori Uchidoi , Nobuaki Date , Hiroshi Aizawa
发明人： Masami Shimizu , Masanori Uchidoi , Nobuaki Date , Hiroshi Aizawa
CPC分类号： G03B9/58 , G03B7/0807 , G03B7/26
摘要： A camera having a control system for coordinating the release actuator and electronic shutter with either one of a battery and an electric generator incorporated therein. As the battery has lost electrical energy, the removal of the battery from the camera enables the coordinating system to restrict the manual setting of an exposure time within faster limits and to supply electrical power from the generator to at least that portion of the automatic exposure control circuit which contributes to manual exposure control during the second stroke of the shutter release button, provided that the necessary mechanical energy for driving the generator was created and stored on suitable means during the preceding cycle of film winding operation.
摘要翻译： 一种具有控制系统的照相机，其用于使释放致动器和电子快门与其中并入的电池和发电机中的任一个协调。 当电池已经失去电能时，电池从相机中的移除使得协调系统能够将曝光时间的手动设置限制在更快的范围内，并将发电机的电力提供给至少该部分自动曝光控制 在快门释放按钮的第二次行程期间有助于手动曝光控制的电路，只要在胶卷卷绕操作的前一循环期间产生用于驱动发生器的必要的机械能并将其存储在合适的装置上。
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公开(公告)号：US4200370A
公开(公告)日：1980-04-29
申请号：US951083
申请日：1978-10-13
摘要： An automatic exposure control system for cameras of flash photographic capabilities which is switched to either of the daylight or the mode depending upon whether or not a storage capacitor across which a flash tube is connected is sufficiently charged. The system comprises first and second computers for deriving daylight and flash exposure aperture values respectively, a diaphragm control circuit selectively receptive of the outputs of the computers through a first switch, first and second timing circuits for providing daylight and flash exposure times respectively, and a shutter control circuit selectively receptive of the outputs of the timing circuits through a second switch. The system is characterized in the use of a single mode selection actuator which is common to the first and second switches and which causes an automatic selection of the flash mode when the camera release occurs after the attainment of the voltage of the storage capacitor to the normal firing level. Thus, it is made possible to prevent occurrence of an event where the flash tube is actuated for firing with the simultaneous occurrence of selection of the flash exposure time, while the daylight exposure aperture remains effective, as the storage capacitor voltage reaches the normal firing level at a point in time during the daylight exposure operation.
摘要翻译： 一种用于闪光照相能力的照相机的自动曝光控制系统，其被充分地充电，该自动曝光控制系统根据闪光灯管连接的存储电容器切换到日光或模式中的任一种。 该系统包括用于分别导出日光和闪光曝光光圈值的第一和第二计算机，通过第一开关选择性地接收计算机的输出的光阑控制电路，分别提供日光和闪光曝光时间的第一和第二定时电路，以及 快门控制电路通过第二开关选择性地接收定时电路的输出。 该系统的特征在于使用单模式选择致动器，其是第一和第二开关共同的，并且当在将存储电容器的电压达到正常之后发生相机释放时，自动选择闪光模式 射击等级 因此，当存储电容器电压达到正常点火电平时，可以防止在闪光管被激活以触发闪光的同时发生闪光曝光时间的选择的同时白昼曝光孔径保持有效的事件的发生 在白天曝光操作的时间点。
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公开(公告)号：US4196995A
公开(公告)日：1980-04-08
申请号：US917330
申请日：1978-06-20
申请人： Hiroshi Aizawa , Masanori Uchidoi , Nobuaki Date , Masami Shimizu
发明人： Hiroshi Aizawa , Masanori Uchidoi , Nobuaki Date , Masami Shimizu
摘要： The disclose circuit energizes a magnetic winding of a shutter actuating device. A constant voltage circuit is connected across the magnetic winding, or between the power supply terminal of the magnetic winding and a basic potential to ensure that the response of the armature of the actuating device to the output of a timing circuit is stabilized despite variation in the voltage of an electrical power source. This produces the advantage of substantially improving the accuracy of exposure control, because the closing operation of the shutter is controlled through movement of the armature.
摘要翻译： 公开的电路激励快门驱动装置的磁性绕组。 恒定电压电路跨过磁性绕组，或者在磁性绕组的电源端子和基本电位之间连接，以确保致动装置的电枢对定时电路的输出的响应稳定，尽管在 电源的电压。 这产生了显着提高曝光控制的精度的优点，因为通过电枢的移动来控制快门的关闭操作。
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