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公开(公告)号：US4462673A
公开(公告)日：1984-07-31
申请号：US401701
申请日：1982-07-26
申请人： Masanori Uchidoi , Nobuyuki Suzuki
发明人： Masanori Uchidoi , Nobuyuki Suzuki
IPC分类号： G03B7/093
CPC分类号： G03B7/093
摘要： The disclosed shutter control circuit presents a shutter time as an analog value and converts the same into a digital value by an A/D converter, then nullifies information below a prescribed step of shutter time out of thus digitally converted value for effecting shutter time control based on a digital value which is above said prescribed step. In such a type of shutter time control circuit, even when an analog value as a preset value contains a certain error, the shutter time control can be done with said error being corrected and thus it is very convenient. In this case, however, an error in a positive direction only can be corrected, and an error in a negative direction can not be corrected. The present invention has been completed in view of the above and is to provide a shutter time control circuit which can correct the above mentioned analog value or A/D converted digital value by a prescribed amount so that errors in both the positive direction and the negative direction can be corrected in the above mentioned type of shutter time control circuit.
摘要翻译： 所公开的快门控制电路提供快门时间作为模拟值，并通过A / D转换器将其转换为数字值，然后使由于数字转换的值的规定的快门时间步长以下的信息无效，以进行快门时间控制 在高于所述规定步骤的数字值上。 在这种类型的快门时间控制电路中，即使作为预设值的模拟值包含特定误差，也可以在校正所述误差的情况下进行快门时间控制，因此非常方便。 然而，在这种情况下，仅能够校正正方向的误差，不能校正负方向的误差。 鉴于上述问题，本发明是完成的，其目的是提供一种快门时间控制电路，其能够将上述模拟值或A / D转换数字值校正规定量，使正方向和负方向的误差 可以在上述类型的快门时间控制电路中校正方向。
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公开(公告)号：US4405222A
公开(公告)日：1983-09-20
申请号：US273030
申请日：1981-06-12
摘要： A camera exposure mode setting device including a dial which can be moved to select a number of different exposure modes, one of which is controlled by a self-timer circuit in the camera. The device also includes circuitry coupled to the dial which operates to prevent the self-timer circuit from operating unless the dial is maintained in a self-timer exposure mode position. In a preferred embodiment, a push button extends from the dial, the button being arranged to prevent the dial from being moved to select the self-timer mode unless the button is first pushed down by the user.
摘要翻译： 一种照相机曝光模式设置装置，包括可以被移动以选择多个不同曝光模式的表盘，其中一个曝光模式由照相机中的自拍定时器电路控制。 该设备还包括耦合到刻度盘的电路，其操作以防止自拍定时器电路运行，除非拨盘保持在自拍定时器曝光模式位置。 在优选实施例中，按钮从表盘延伸，按钮布置成防止拨盘被移动以选择自拍模式，除非按钮首先被用户按下。
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公开(公告)号：US4317070A
公开(公告)日：1982-02-23
申请号：US226709
申请日：1981-01-21
申请人： Ryuji Tokuda , Yukio Mashimo , Masanori Uchidoi
发明人： Ryuji Tokuda , Yukio Mashimo , Masanori Uchidoi
CPC分类号： H05B41/325
摘要： A circuit for flash equipment having a trigger control switch or an SCR with its gate lead connected to a condenser through a switching transistor which is rendered conducting when the main flash capacitor is charged to the normal firing voltage and when the X sync contact is closed. After a time interval from the closure of the X sync contact, the condenser is short-circuited to prevent refiring of the flash tube. Such refiring would otherwise be caused when the condenser is recharged to actuate the SCR during the period of closure of the X sync contact.
摘要翻译： 一种用于具有触发控制开关或SCR的栅极引线的闪存设备的电路，其栅极引线通过开关晶体管连接到电容器，当主闪存电容器被充电到正常点火电压并且当X同步触点闭合时，该开关晶体管导通。 在从X同步触点闭合的时间间隔之后，冷凝器短路以防止闪光管的再充电。 否则，在X同步触点闭合期间，当冷凝器再充电以致动SCR时，会引起这种再次燃烧。
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公开(公告)号：US4297013A
公开(公告)日：1981-10-27
申请号：US116314
申请日：1980-01-28
摘要： A digital system for controlling coordination of the various portions of the camera to operate in selected modes including the automatic and bulb modes is provided with signal forming means comprising a count start switch and a bulb control switch connected in parallel to each other. Where the automatic mode is selected, in a predetermined time interval after the initiation of an actuation of release of the camera, as the both switches are open, the signal forming means produces an actuating signal which is then applied to discriminating means, causing the shutter to operate automatically. Where the bulb mode is selected, no actuating signal is produced even after the termination of duration of the predetermined time interval so that the discriminating means permits the opening of the shutter to continue until the termination of the release actuation.
摘要翻译： 用于控制相机的各个部分的协调以在包括自动和灯泡模式的选定模式中操作的数字系统被提供有包括计数启动开关和灯泡控制开关并联连接的信号形成装置。 在自动模式被选择的情况下，在开始释放相机的预定时间间隔中，当两个开关打开时，信号形成装置产生一个致动信号，然后将该启动信号施加到识别装置，从而使快门 自动运行。 在选择灯泡模式的情况下，即使在预定时间间隔的持续时间结束之后也不产生致动信号，使得识别装置允许快门的打开持续直到释放致动结束。
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公开(公告)号：US4236802A
公开(公告)日：1980-12-02
申请号：US70800
申请日：1979-08-29
申请人： Masanori Uchidoi , Masaharu Kawamura , Yoshihiro Shigeta , Yoji Sugiura , Hiroshi Yamamoto , Nobuo Tezuka
发明人： Masanori Uchidoi , Masaharu Kawamura , Yoshihiro Shigeta , Yoji Sugiura , Hiroshi Yamamoto , Nobuo Tezuka
CPC分类号： G03B17/20 , G03B7/0807
摘要： A safety device for preventing non exposure of film in a camera having a count switch which is normally closed prior to shutter release operation, the switch being opened after the shutter release operation begins to enable a timing circuit to start operating. In a preferred embodiment, the device includes a NOR gate having an input connected to one side of the count switch, and its output connected to the set terminal of a flip-flop which enables the shutter release operation. Another input of the NOR gate is connected to a differentiation circuit which provides an output signal when the shutter release button on the camera is actuated. This circuit arrangement operates so that the flip-flop is not set if the count switch is accidently in an open state when the release button is actuated. The shutter release operation is thereby prevented until the count switch is restored to working order.
摘要翻译： 一种安全装置，用于防止在具有在快门释放操作之前常闭的计数开关的相机中未曝光的胶片，开关在快门释放操作开始之后打开以使定时电路开始运行。 在优选实施例中，该器件包括NOR门，其具有连接到计数开关的一侧的输入，其输出连接到能够进行快门释放操作的触发器的设定端子。 NOR门的另一个输入端连接到差分电路，该差分电路当相机上的快门释放按钮被致动时提供输出信号。 如果计数开关在释放按钮被启动时意外地处于打开状态，则该电路装置工作，使得触发器不被置位。 由此防止快门释放操作，直到计数开关恢复到工作状态。
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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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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：US4402589A
公开(公告)日：1983-09-06
申请号：US356098
申请日：1982-03-08
CPC分类号： G03B17/18
摘要： A correct exposure annunciator has an element to indicate a correct exposure. The indicating element is energized in normal flash photography to indicate correct exposure. When abnormal flash photography is carried out, the element is de-energized by a signal, representing the AE mode, and the light is turned off.
摘要翻译： 正确的曝光报告器具有指示正确曝光的元素。 在正常的闪光摄影中，指示元件通电，以指示正确的曝光。 当进行异常闪光拍摄时，元件由表示AE模式的信号而被断电，并且灯被关闭。
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69.发明授权Camera and automatic exposure control therefor for use with various types of flash units 失效相机和自动曝光控制可用于各种类型的闪光灯组件
公开(公告)号：US4383745A
公开(公告)日：1983-05-17
申请号：US115748
申请日：1980-01-28
CPC分类号： G03B15/05 , G03B7/091 , G03B7/16 , G03B2215/0514
摘要： In the disclosed camera, a switchover arrangement automatically shifts from an automatic exposure mode to a flash mode in response to a charge completion signal from a flash device. A line electrically connects a terminal capable of receiving the charge completion signal from the flash unit to the switchover arrangement. A switch connected to the connecting line applies a signal of a value corresponding to the charge completion signal from a signal source in the camera to the switchover arrangement to cause the latter to effect a switchover to the flash mode in response thereto in the same manner as when a charge completion signal is applied thereto.
摘要翻译： 在所公开的相机中，响应于来自闪光装置的充电完成信号，切换装置自动地从自动曝光模式转换到闪光模式。 线路将能够从闪光单元接收充电完成信号的终端电连接到切换装置。 连接到连接线的开关将相应于充电完成信号的值的信号从摄像机中的信号源施加到切换装置，以使其相应地以与之相同的方式对闪光模式进行切换 当向其施加充电完成信号时。
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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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