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公开(公告)号：US4389111A
公开(公告)日：1983-06-21
申请号：US295361
申请日：1981-08-24
CPC分类号： G03B7/093 , G03B7/0807 , G03B7/26 , G03B9/08
摘要： A camera includes a shutter which is electromagnetically closed at the end of a given exposure time. Circuitry in the camera operates to prevent a prolonged opening of the shutter from occurring when the camera battery voltage drops below a satisfactory operating level during an exposure, wherein the shutter mechanism is forcibly recharged.
摘要翻译： 相机包括在给定曝光时间结束时电磁闭合的快门。 相机中的电路操作以防止在曝光期间相机电池电压降低到令人满意的操作水平以下时快门的长时间打开，其中快门机构被强制充电。
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公开(公告)号：US4410252A
公开(公告)日：1983-10-18
申请号：US295326
申请日：1981-08-24
CPC分类号： G03B17/425 , G03B19/12
摘要： A single lens reflex camera with a built-in winding motor performing quick return of the mirror and automatic diaphragm in the initial stage of winding operation where the load on the winding motor is very little is disclosed.
摘要翻译： 公开了一种具有内置绕组电机的单透镜反光相机，其中卷绕电机上的负载非常小，在卷绕操作的初始阶段快速返回镜子和自动膜片。
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公开(公告)号：US4400073A
公开(公告)日：1983-08-23
申请号：US295324
申请日：1981-08-24
CPC分类号： G03B17/425
摘要： A camera of the type having a winding motor is provided with a timer circuit which, after the lapse of a predetermined length of time, forcibly effects a supply of power to the winding motor when the shutter blades fail to travel in a normal way, and even when a signal corresponding to shutter blade travel completion is not obtained. The winding motor then resets the camera mechanisms which are arranged to perform various operations, such as shutter charging, mirror returning and film feeding, into their respective initial states. This eliminates the possibility of trouble resulting from such a malfunction of the camera that it becomes inoperative halfway through completion of photographing operation.
摘要翻译： 具有卷绕电动机的类型的照相机设置有定时器电路，其在预定时间长度经过之后，当快门叶片以正常方式不能行进时强制地对卷绕电动机供电，以及 即使没有获得对应于快门叶片行进完成的信号。 然后，绕组电动机将被配置为执行诸如快门充电，镜子返回和胶片馈送等各种操作的相机机构复位到它们各自的初始状态。 这消除了由于摄像机的这种故障引起的故障的可能性，使得其在完成拍摄操作的中途失去作用。
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公开(公告)号：US4466719A
公开(公告)日：1984-08-21
申请号：US494628
申请日：1983-05-16
CPC分类号： G03B17/425
摘要： A camera which is provided with a motor for driving a wind-up mechanism to perform film feeding and shutter charging and which is arranged to have photographing actions carried out one after another upon completion of the film feeding and shutter charging, a wind-up device has a switch which is arranged to force the wind-up mechanism into completing the winding up action thereof by means of the motor in response to depression of a rewinding button.
摘要翻译： 一种照相机，其设置有用于驱动卷绕机构的电动机，以执行胶片馈送和快门充电，并且被配置为在胶片馈送和快门充电完成时依次执行拍摄动作，卷绕装置 具有开关，该开关被布置成响应于按下倒转按钮而通过电动机强制卷绕机构完成其卷绕动作。
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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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7.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：US4264176A
公开(公告)日：1981-04-28
申请号：US27357
申请日：1979-04-05
CPC分类号： G03B7/093
摘要： A device for preventing erroneous operation of a camera is disclosed. The device includes an electromagnet for closing the camera shutter. Current supply apparatus supplies current to the electromagnet. A detection device is employed for detecting whether current from the current supply device has been supplied to the electromagnet. The detection device produces a detection signal when the current is supplied to the electromagnet. A signal generation device has a switch which closes in response to the release operation wherein the signal generation device generates an electrical signal when it receives the detection signal from the detection device. A control device is included for generating a check signal and a release signal. The control device produces the check signal for a predetermined period of time only when it receives the electrical signal from the signal generation device to actuate the detection device. The control device generates the release signal when it receives the detection signal from the detection device. Finally, an electromagnet is included for opening the shutter which is actuated by the release signal from the control device so as to operate only when the current passage to the shutter control electromagnet is detected.
摘要翻译： 公开了一种用于防止相机错误操作的装置。 该装置包括用于闭合相机快门的电磁体。 电流供应装置向电磁铁提供电流。 检测装置用于检测来自电流供应装置的电流是否已经被提供给电磁体。 当电流被提供给电磁体时，检测装置产生检测信号。 信号发生装置具有响应于释放操作而闭合的开关，其中当信号发生装置从检测装置接收到检测信号时产生电信号。 包括用于产生检查信号和释放信号的控制装置。 只有当控制装置接收到来自信号发生装置的电信号来致动检测装置时，控制装置产生一个预定时间段的检查信号。 当控制装置从检测装置接收到检测信号时，产生释放信号。 最后，包括用于打开由控制装置的释放信号致动的快门的电磁体，以便仅在检测到快门控制电磁体的当前通道时才起作用。
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公开(公告)号：US4306784A
公开(公告)日：1981-12-22
申请号：US56418
申请日：1979-07-10
申请人： Nobuo Tezuka , Masanori Uchidoi , Yukio Iura , Masami Shimizu , Ryoichi Yoshikawa , Hiroshi Aizawa
发明人： Nobuo Tezuka , Masanori Uchidoi , Yukio Iura , Masami Shimizu , Ryoichi Yoshikawa , Hiroshi Aizawa
CPC分类号： G03B17/38
摘要： A camera having an electrically operated self-timer is provided with an operation mode display device arranged so that when the camera is switched to an exposure control mode by the self-timer, the display being ready for actuation of the timer is rendered recognizable from the object side or to the photographer, while when switched to any other exposure control mode, this display is shielded so as not to be recognizable from the object side or to the photographer.
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公开(公告)号：US4298256A
公开(公告)日：1981-11-03
申请号：US3854
申请日：1979-01-16
CPC分类号： G03B7/093
摘要： An automatic exposure control device for a camera capable of permitting flash photography includes an exposure computing portion for natural light photography wherein the computing portion generates an exposure signal corresponding to the brightness of an object and an exposure computing portion for flash photography wherein the computing portion is arranged to generate an exposure signal suitable for a flash photographing operation. An exposure control portion is responsive to one of the exposure signals generated by the natural light photographing exposure computing portion and the flash photographing exposure computing portion. A change-over device applies one of the exposure signals to the exposure control portion. An electromagnetic release device actuates the internal mechanism of the camera wherein the release device produces an electrical signal when it operates. A signal generating device generates a selection signal until the electrical signal is applied from the electromagnetic release device and generates an inhibition signal after application of the electrical signal. A discharge tube emits a flash therefrom an an accumulating portion accumulates light emitting energy for the discharge tube. A detecting device detects the accumulation of the light emitting energy and is arranged to produce a detection signal when the accumulated amount of energy reaches a predetermined value. A triggering device enables the discharge tube to emit a flash in response to the detection signal. The automatic exposure control device performs other functions relative to exposure control.
摘要翻译： 一种用于允许闪光摄影的照相机的自动曝光控制装置，包括用于自然光摄影的曝光计算部分，其中所述计算部分产生对应于物体的亮度的曝光信号和用于闪光摄影的曝光计算部分，其中所述计算部分是 布置成产生适合于闪光拍摄操作的曝光信号。 曝光控制部分响应由自然光摄影曝光计算部分和闪光摄影曝光计算部分产生的曝光信号之一。 切换装置将曝光信号中的一个施加到曝光控制部。 电磁释放装置致动照相机的内部机构，其中释放装置在操作时产生电信号。 信号发生装置产生选择信号，直到从电磁释放装置施加电信号，并在施加电信号之后产生禁止信号。 放电管从其中发射闪光，蓄积部分累积用于放电管的发光能量。 检测装置检测发光能量的累积，并且被布置成当累积的能量达到预定值时产生检测信号。 触发装置使得放电管响应于检测信号发出闪光。 自动曝光控制装置执行相对于曝光控制的其它功能。
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