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    Motor-driven shutter for camera
    1.
    发明授权
    Motor-driven shutter for camera 失效
    用于摄像机的电动快门

    公开(公告)号：US5060000A

    公开(公告)日：1991-10-22

    申请号：US427037

    申请日：1989-10-25

    申请人： Masuo Ogihara ,  Hiroyuki Ishida ,  Shinji Nagaoka ,  Youichi Seki ,  Shigeru Tagami ,  Hiroshi Yamazaki ,  Nobuo Shinozaki

    发明人： Masuo Ogihara ,  Hiroyuki Ishida ,  Shinji Nagaoka ,  Youichi Seki ,  Shigeru Tagami ,  Hiroshi Yamazaki ,  Nobuo Shinozaki

    IPC分类号： G03B3/10 ,  G03B7/10

    CPC分类号： G03B3/10 ,  G03B7/10

    摘要： A drive ring drivable by a stepping motor is normally urged by a spring to turn in one direction around a lens aperture. When not in use, the stepping motor is not subjected to the resilient force from the spring since the drive ring is locked against rotation by a ratchet wheel engaged by an engagement lever. The stepping motor is therefore not subjected to undue stresses and is prevented from malfunctioning. Consequently, focusing failures and exposure adjustment failures which could otherwise arise from malfunctioning of the stepping motor are prevented from occurring. In operation, a solenoid is energized to move the engagement lever out of engagement with the ratchet wheel, which is then freed to allow the drive ring to be turned by the stepping motor.

    摘要翻译： 由步进电机驱动的驱动环通常由弹簧推动以围绕透镜孔向一个方向转动。 当不使用时，步进电机不受弹簧的弹力，因为驱动环被接合杆啮合的棘轮锁定以防旋转。 因此，步进电机不会受到过大的应力，并且不会发生故障。 因此，防止由于步进电机故障引起的聚焦故障和曝光调整故障发生。 在操作中，螺线管被通电以将接合杆移动脱离与棘轮的接合，然后释放该棘轮，以允许驱动环由步进电机转动。

    Motor-driven shutter for camera
    2.
    发明授权
    Motor-driven shutter for camera 失效
    用于摄像机的电动快门

    公开(公告)号：US4881096A

    公开(公告)日：1989-11-14

    申请号：US15169

    申请日：1987-02-17

    申请人： Masuo Ogihara ,  Hiroyuki Ishida ,  Shinji Nagaoka ,  Youichi Seki ,  Shigeru Tagami ,  Hiroshi Yamazaki ,  Nobuo Shinozaki

    发明人： Masuo Ogihara ,  Hiroyuki Ishida ,  Shinji Nagaoka ,  Youichi Seki ,  Shigeru Tagami ,  Hiroshi Yamazaki ,  Nobuo Shinozaki

    IPC分类号： G03B13/36 ,  G02B7/09 ,  G03B3/10 ,  G03B7/10 ,  G03B9/08

    CPC分类号： G03B7/10 ,  G03B3/10

    摘要： A camera shutter has an automatic focusing lens operative when actuated to effect an automatic focusing operation. An actuating ring is normally placed in a non-operating region and momentarily shifted to an operating region during the automatic focusing operation. The actuating ring is sequentially displaceable in forward and reverse direction through the operating region to actuate the automatic focusing lens, and displaceable in the forward and reverse directions in the non-operating region without effecting actuation of the automatic focusing lens. A ratchet mechanism is coupled to the actuating ring for selectively locking and unlocking the actuating ring in the non-operating region in response to the displacement thereof in the forward and reverse directions. A bi-directionally rotatable stepping motor is connected to drive the actuating ring to displace the same in the forward and reverse directions.

    摘要翻译： 相机快门具有自动聚焦透镜，当被致动时可操作以实现自动聚焦操作。 致动环通常放置在非操作区域中，并且在自动对焦操作期间暂时移动到操作区域。 致动环可以在正向和反向方向上顺序地通过操作区域移动，以启动自动聚焦透镜，并且在非操作区域中可沿前后方向移位，而不影响自动聚焦透镜的致动。 棘轮机构联接到致动环，用于响应于其在正向和反向的位移而选择性地在非操作区域中锁定和解锁致动环。 连接双向旋转的步进电动机以驱动致动环，以沿前后方向使其移动。

    Distance detecting device for a camera
    4.
    发明授权
    Distance detecting device for a camera 失效
    相机距离检测装置

    公开(公告)号：US4648700A

    公开(公告)日：1987-03-10

    申请号：US738093

    申请日：1985-05-24

    申请人： Shinji Nagaoka

    发明人： Shinji Nagaoka

    IPC分类号： G03B13/36 ,  G02B7/32 ,  G03B3/00

    CPC分类号： G02B7/32

    摘要： An active type distance detecting device wherein either a light emitting element or a light receiving element is operated to scan by a scanning means. A signal for driving the scanning means is interposed between pulse signals for causing the light emitting element to emit flickering light so that the former signal may not overlap with the latter pulse signals in order to reduce fluctuations of a load electric current.

    摘要翻译： 一种主动式距离检测装置，其中发光元件或光接收元件被操作以通过扫描装置进行扫描。 用于驱动扫描装置的信号插入在用于使发光元件发出闪烁光的脉冲信号之间，使得前一个信号可能不与后面的脉冲信号重叠，以便减少负载电流的波动。

    Distance detector using a photopotentiometer and a continuous detecting system
    5.
    发明授权
    Distance detector using a photopotentiometer and a continuous detecting system 失效
    距离探测器采用光电位计和连续检测系统

    公开(公告)号：US4445029A

    公开(公告)日：1984-04-24

    申请号：US258517

    申请日：1981-04-28

    申请人： Shinji Nagaoka ,  Koji Satoh

    发明人： Shinji Nagaoka ,  Koji Satoh

    IPC分类号： G01C3/06 ,  G01C3/00 ,  G01C3/10 ,  G01S17/46 ,  G02B7/28 ,  G03B13/36 ,  G01J1/20

    CPC分类号： G01S17/46 ,  G01C3/10

    摘要： A distance detector capable of measuring the distance between the range detector and an object by directing a light emitted from a light emission element to the object and receiving the reflected light and advantageously adaptable particularly to small-sized cameras.The light reflected on the object is received by a single light-receiving element. The reflected light is condensed by a condenser and concentrated on the light-receiving element. The light-receiving element comprises an element, for example a photopotentiometric element, varying in the electric output according to the position of the light spot of the reflected light. The output of the element in the form of electric signal continuously varies in proportion to the distance between the range detector and the object.

    摘要翻译： 一种距离检测器，其能够通过将从发光元件发射的光引导到对象并接收反射光并且有利地特别适用于小型照相机来测量距离检测器和物体之间的距离。 在物体上反射的光被单个光接收元件接收。 反射光被冷凝器冷凝并集中在光接收元件上。 光接收元件包括根据反射光的光点的位置而在电输出中变化的元件，例如光电位元件。 电信号形式的元件的输出与距离检测器和物体之间的距离成比例地连续变化。

    Inhibit circuit for an electronic flash charge circuit
    6.
    发明授权
    Inhibit circuit for an electronic flash charge circuit 失效
    用于电子闪光充电电路的抑制电路

    公开(公告)号：US4305649A

    公开(公告)日：1981-12-15

    申请号：US143875

    申请日：1980-04-25

    申请人： Shinji Nagaoka ,  Yuzuru Takazawa

    发明人： Shinji Nagaoka ,  Yuzuru Takazawa

    IPC分类号： G03B7/26 ,  G03B15/05

    CPC分类号： G03B15/05 ,  G03B2215/05

    摘要： In a camera of the type including an electronic flash light unit with an oscillating circuit and an electronic shutter which are both supplied with power from a common power supply, an inhibit circuit for an electric flash charge circuit is provided in which a base of the transistor in the oscillating circuit is connected to the output terminal of the exposure control circuit via a semi-conductor switching element. The semi-conductor switching element stops oscillation in the electric flash charge circuit while the exposure control circuit is in operation.

    摘要翻译： 在包括具有振荡电路的电子闪光灯单元和电子快门的类型的照相机中，两者均由公共电源供电，提供用于电闪光充电电路的禁止电路，其中晶体管的基极 振荡电路经由半导体开关元件与曝光控制电路的输出端子连接。 半导体开关元件在曝光控制电路工作时停止电闪充电电路的振荡。

    Focus detecting system
    7.
    发明授权
    Focus detecting system 失效
    聚焦检测系统

    公开(公告)号：US4267440A

    公开(公告)日：1981-05-12

    申请号：US24440

    申请日：1979-03-27

    申请人： Kiyoshi Kitai ,  Shinji Nagaoka ,  Yuzuru Takazawa

    发明人： Kiyoshi Kitai ,  Shinji Nagaoka ,  Yuzuru Takazawa

    IPC分类号： G01C3/06 ,  G01C3/00 ,  G02B7/30 ,  G03B3/00 ,  G03B13/36 ,  G01J1/20

    CPC分类号： G02B7/305

    摘要： The system is provided with an optical means capable of forming images obtained through a first light passage and a second light passage. A light detecting system is formed of a plurality of light responsive elements which receive the image. A focus detection signal is obtained by detecting the differential between the maximum and the minimum intensity of the light pattern or the maximum ratio of the maximum intensity to the minimum intensity using the electric output of the light responsive elements corresponding the light pattern of a composite image.

    摘要翻译： 该系统设置有能够形成通过第一光通路和第二光通路获得的图像的光学装置。 光检测系统由接收图像的多个光响应元件形成。 通过使用对应于合成图像的光图案的光响应元件的电输出来检测光图案的最大和最小强度之间的差异或最大强度与最小强度的最大比率来获得焦点检测信号 。

    Lens shutter actuating device for quick-return type single-lens reflex camera
    8.
    发明授权
    Lens shutter actuating device for quick-return type single-lens reflex camera 失效
    镜头快门驱动装置，用于快速返回型单镜头反光相机

    公开(公告)号：US4062029A

    公开(公告)日：1977-12-06

    申请号：US652815

    申请日：1976-01-27

    申请人： Kiyoshi Kitai ,  Yukio Nakamura ,  Shogo Kato ,  Shinji Nagaoka

    发明人： Kiyoshi Kitai ,  Yukio Nakamura ,  Shogo Kato ,  Shinji Nagaoka

    IPC分类号： G03B9/22 ,  G03B9/58 ,  G03B9/00 ,  G03B9/08

    CPC分类号： G03B9/22 ,  G03B9/58

    摘要： A single-lens reflex camera shutter having an operating ring driven in one direction by a gear-rack and pinion combination. The operating ring actuates the diaphragm and shutter blades and is stopped by a stop lever during the taking of an exposure. The stop lever is locked during the taking of an exposure by a signal lever that signals the taking of an exposure and is released upon completion of an exposure to allow the operating ring to continue in its travel and carry out opening of the shutter and opening of the diaphragm blades.

    摘要翻译： 具有通过齿条和小齿轮组合在一个方向上驱动的操作环的单镜头反光相机快门。 操作环启动隔膜和快门叶片，并在曝光过程中由止动杆挡住。 在通过信号杆拍摄曝光时，停止杆被锁定，该信号杆指示拍摄曝光并在曝光完成时被释放，以允许操作环继续行进并且执行快门的打开和打开 隔膜叶片。

    Exposure quantity control circuit
    9.
    发明授权
    Exposure quantity control circuit 失效
    曝光量控制电路

    公开(公告)号：US4033682A

    公开(公告)日：1977-07-05

    申请号：US596018

    申请日：1975-07-15

    申请人： Yukio Nakamura ,  Shougo Kato ,  Shinji Nagaoka

    发明人： Yukio Nakamura ,  Shougo Kato ,  Shinji Nagaoka

    IPC分类号： G03B7/083 ,  G03B9/62 ,  G03B9/08

    CPC分类号： G03B9/62 ,  G03B7/083

    摘要： An electric shutter is opened and closed to effect an exposure in dependence upon the energization of an electromagnet. A switching circuit controls the energization of the electromagnet in accordance with various exposure information, such as diaphragm setting and film sensitivity. An exposure control circuit comprised of a series connection of a diode and a variable resistor is connected in parallel with the electromagnet and adjustably controls the time at which the electromagnet is deenergized to accordingly effect closing of the shutter such that the electromagnet delay time equals the shutter sector advancing time to thereby compensate for fluctuations between the two times.

    摘要翻译： 电动快门被打开和关闭以根据电磁铁的通电而进行曝光。 开关电路根据各种曝光信息来控制电磁铁的通电，例如膜片设定和膜敏感性。 由二极管和可变电阻器的串联连接构成的曝光控制电路与电磁体并联连接，并且可调节地控制电磁铁断电的时间，从而相应地实现快门关闭，使得电磁延迟时间等于快门 从而补偿两次之间的波动。