Program shutter
    1.
    发明授权
    Program shutter 失效
    程式开关

    公开(公告)号:US5109250A

    公开(公告)日:1992-04-28

    申请号:US452565

    申请日:1989-12-18

    CPC分类号: G03B7/097 G03B7/10 G03B9/14

    摘要: A program shutter for automatic exposure control including a forwardly/reversibly rotatable step motor for opening and closing a shutter to effect automatic exposure in the control circuit for controlling the operation of the step motor. The control circuit includes stored predetermined shutter mechanism characteristic values. The reversible stepping motor varies the lens aperture in response to a pulsed lens control signal generated by the control circuit. The corresponding value associated with each pulse is varied to be synchronized with and dependent on the shutter mechanism characteristic values and correspondingly varies the rotational power of the reversible stepping motor to overcome detrimental inherent shutter mechanism characteristics and to increase the response efficiency of the shutter.

    摘要翻译: 一种用于自动曝光控制的程序快门,包括用于打开和关闭快门的向前/可逆旋转步进电机,以在控制电路中实现自动曝光,以控制步进电机的操作。 控制电路包括存储的预定的快门机构特性值。 响应于由控制电路产生的脉冲透镜控制信号,可逆步进电机改变透镜孔径。 与每个脉冲相关联的对应值被改变以与快门机构特征值同步并且取决于快门机构特征值,并且相应地改变可逆步进电机的旋转功率,以克服有害的固有快门机构特性并提高快门的响应效率。

    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:US5060000A

    公开(公告)日:1991-10-22

    申请号:US427037

    申请日:1989-10-25

    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
    3.
    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

    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。

    Stepping motor-driven sector opening/closing device
    4.
    发明授权
    Stepping motor-driven sector opening/closing device 失效
    步进电机驱动扇区开闭装置

    公开(公告)号:US4782353A

    公开(公告)日:1988-11-01

    申请号:US706127

    申请日:1985-02-27

    IPC分类号: G03B9/08

    CPC分类号: G03B9/08

    摘要: In a program shutter using a stepping motor for opening and closing sectors, the stepping motor is composed of a 4-pole magnetized rotor and two sets of U-shaped stators and coils, the stators being each provided with a pair of leg portions which are formed with magnetic poles at end portions thereof in an opposed relation to the outer periphery of the rotor, the magnetic poles at the leg end portions of each stator being formed in a phase relation of 90.degree. with respect to the rotational center of the rotor, and one magnetic poles of the stators being disposed in proximity to each other so as to in a phase relation of 45.degree. with respect to the rotational center of the rotor.

    摘要翻译: 在使用步进马达开闭扇区的程序快门中,步进电机由4极磁化转子和两组U形定子和线圈构成,定子分别设有一对脚部, 在与转子的外周相对的端部形成有磁极,每个定子的腿端部的磁极相对于转子的旋转中心以90°的相位关系形成, 并且定子的一个磁极彼此相邻地设置成相对于转子的旋转中心成45度的相位关系。

    Program shutter
    5.
    发明授权
    Program shutter 失效
    程序快门

    公开(公告)号:US4864347A

    公开(公告)日:1989-09-05

    申请号:US176942

    申请日:1988-04-04

    IPC分类号: G03B9/10 G03B7/097 G03B9/24

    CPC分类号: G03B7/097

    摘要: A program shutter has a plurality of shutter sectors driven in opening and closing directions by a reversible stepping motor to define a lens aperture during an exposure operation. An arithmetic circuit calculates an exposure amount corresponding to the brightness of the object being photographed, and a counting circuit outputs a pulse count corresponding to the number of steps through which the stepping motor should be rotated based on the calculated exposure amount. A pulse circuit produces driving pulses equal in number to the number of steps determined by the counting circuit, and a time circuit determines the ON/OFF periods of the driving pulses based on the calculated exposure amount. The driving pulses are applied to the stepping motor through a driving circuit to accordingly drive the shutter sectors in the opening and closing directions during the exposure operation.

    摘要翻译: 节目快门具有通过可逆步进电机在打开和关闭方向上驱动的多个快门扇区,以在曝光操作期间限定透镜孔径。 算术电路计算与拍摄对象的亮度相对应的曝光量,并且计数电路基于计算出的曝光量输出与步进电机应该旋转的步数相对应的脉冲数。 脉冲电路产生与由计数电路确定的步数相等的驱动脉冲,并且时间电路基于所计算的曝光量确定驱动脉冲的接通/断开周期。 驱动脉冲通过驱动电路施加到步进电机,从而在曝光操作期间相应地在开闭方向上驱动快门扇区。

    Program shutter
    6.
    发明授权
    Program shutter 失效
    程序快门

    公开(公告)号:US4864346A

    公开(公告)日:1989-09-05

    申请号:US132463

    申请日:1987-12-14

    CPC分类号: G03B7/097 G03B9/08

    摘要: There is disclosed a program shutter for use in a camera. The program shutter consists of a shutter mechanism and a control portion. The shutter mechanism has sectors for defining an opening and a stepper motor for driving the sectors. The control portion produces pulses having pulse width conforming to the operating characteristic of the shutter mechanism. These pulses are used to step the motor forward or backward according to the exposure corresponding to the luminance of the subject.

    摘要翻译: 公开了一种在相机中使用的程序快门。 节目快门由快门机构和控制部分组成。 快门机构具有用于限定开口的扇区和用于驱动扇区的步进电机。 控制部分产生具有符合快门机构的操作特性的脉冲宽度的脉冲。 这些脉冲用于根据与被摄体的亮度对应的曝光来向前或向后地步进电动机。

    Alarm signaling time detecting device for digital clock
    7.
    发明授权
    Alarm signaling time detecting device for digital clock 失效
    数字时钟报警信号时间检测装置

    公开(公告)号:US4293938A

    公开(公告)日:1981-10-06

    申请号:US107516

    申请日:1979-12-27

    摘要: An alarm signaling time setting member is coupled to a minute indication drum having minute-scale alarm time graduations and an hour indication drum having hour-scale alarm signaling time graduations is intermittently advanced by the minute indication drum. First and second detection members for detecting the alarm signaling time are provided in correspondence to an hour time wheel and a minute time wheel respectively. The first detection member is geared to the second detection member, and the second detection member is geared to the minute indication drum to permit the detection member positions to be continuously set.

    摘要翻译: 警报信号时间设定部件耦合到具有微小刻度报警时间刻度的微小指示滚筒,并且具有小时报警信号时间刻度的小时指示滚筒由微小指示滚筒间歇地提前。 第一和第二检测构件用于检测报警信号时间分别对应于小时轮和分时轮。 第一检测构件适合于第二检测构件,第二检测构件适于微小指示鼓,以允许检测构件位置被连续地设定。

    Mode switching device in an electronic timepiece
    8.
    发明授权
    Mode switching device in an electronic timepiece 失效
    电子表中的模式切换装置

    公开(公告)号:US4444511A

    公开(公告)日:1984-04-24

    申请号:US290088

    申请日:1981-08-04

    CPC分类号: G04C3/005 G04G5/00 G04G9/126

    摘要: An electronic watch having a multiple of modes includes mode selection means operable from the outside and a plurality of external operating buttons for modifying the contents of indication of the watch or for issuing an operational command in each mode. Auxiliary indication means is provided directly with the mode selection means. Alternatively, the auxiliary indication means may be provided separately from the mode selection means but in an interlocked fashion with it. The indication surface of the auxiliary indication means carries at a position corresponding to each of the external operating buttons a symbol or characters which represent the function of said each of the external operating buttons in each selected mode.

    摘要翻译: 具有多种模式的电子手表包括从外部操作的模式选择装置和用于修改手表的指示的内容或用于在每种模式下发出操作命令的多个外部操作按钮。 辅助指示装置直接与模式选择装置一起提供。 或者,辅助指示装置可以与模式选择装置分开设置,但是与其互锁的方式。 辅助指示装置的指示表面在与每个外部操作按钮对应的位置上携带代表每个所选择的模式中的每个外部操作按钮的功能的符号或字符。

    Second stop device of clock
    9.
    发明授权
    Second stop device of clock 失效
    时钟秒钟装置

    公开(公告)号:US4400091A

    公开(公告)日:1983-08-23

    申请号:US231797

    申请日:1981-02-05

    CPC分类号: G04B27/001 G04C9/00

    摘要: A timepiece has a second hand, a minute hand and an hour hand which are rotationally driven by a gear train under control of an electromechanical transducer. The transducer has a plastic coil frame on which is wound a coil and electric drive signals are applied to the coil in response to which the transducer produces a rotational output for driving the gear train. A hand stopping device is formed integrally with the coil frame and functions to temporarily stop the rotational movement of the gear train to thereby enable setting or correction of the position of the second hand. The device comprises a flexible arm formed integrally with and projecting from the coil frame, the arm having a manually operated portion in the form of a button which, when actuated, resiliently flexes the arm from an inoperative position to an operative position, and an interlocking portion operable when the arm is flexed to its inoperative position to releaseably interlock with a gear of the gear train to thereby stop the rotational movement of the gear train.

    摘要翻译: 钟表具有在机电换能器的控制下由齿轮系旋转驱动的秒针,分针和时针。 传感器具有塑料线圈框架,线圈上缠绕线圈,电驱动信号施加到线圈,响应于此,换能器产生用于驱动齿轮系的旋转输出。 手刹装置与线圈架一体地形成,用于临时停止齿轮系的旋转运动,从而能够设定或校正秒针的位置。 该装置包括与线圈架一体形成并且从线圈框架突出的柔性臂,该臂具有按钮形式的手动操作部分,该按钮在致动时将臂从不工作位置弹性地弯曲到操作位置, 当臂弯曲到其不工作位置时,该部分可操作以可释放地与齿轮系的齿轮互锁,从而停止齿轮系的旋转运动。