Bulb photography control system for camera
    1.
    发明授权
    Bulb photography control system for camera 失效
    照相机灯泡摄影控制系统

    公开(公告)号:US4268152A

    公开(公告)日:1981-05-19

    申请号:US107552

    申请日:1979-12-27

    CPC分类号: G03B9/62

    摘要: A control system for a camera controls a shutter release operation electromagnetically. A signal generating circuit produces a switching signal for operating a switching circuit which supplies current to a control circuit for a camera. The signal generating circuit is in a condition to always produce a switching signal when a camera operation member is set to normal photographing modes other than the bulb photographing mode, and is out of condition to produce the switching signal during the time between actuation of a magnet and termination of the shutter opening operation. The closing operation of the shutter is checked by means of a mechanical control member during the release when the camera operation member is set in the bulb photographing mode.

    摘要翻译: 用于相机的控制系统以电磁方式控制快门释放操作。 信号发生电路产生切换信号,用于操作向摄像机的控制电路提供电流的开关电路。 当相机操作部件被设置为除了灯泡拍摄模式之外的正常拍摄模式时,信号发生电路处于总是产生切换信号的状态,并且在磁体致动之前的时间内不能产生切换信号 并且快门打开操作的终止。 当照相机操作构件被设置在灯泡拍摄模式时,通过机械控制构件在释放期间检查快门的关闭操作。

    Photometric circuit for camera
    2.
    发明授权
    Photometric circuit for camera 失效
    相机光度计

    公开(公告)号:US4247186A

    公开(公告)日:1981-01-27

    申请号:US50124

    申请日:1979-06-19

    IPC分类号: G03B7/081 G01J1/44 G03B7/083

    CPC分类号: G01J1/44 G03B7/08

    摘要: A photometric circuit for a camera including a first operational amplifier with a photo-electric element connected between its inverted and non-inverted input terminals and, a logarithmic compression diode connected between the output terminal and the inverted input terminal of the first operational amplifier, thus providing a voltage corresponding to the logarithmic value of the brightness of an object to be photographed at the output terminal of the first operational amplifier.A second operational amplifier has a plurality of temperature compensating commonly polarized diodes connected in parallel between its inverted input terminal and the output terminal. A first constant voltage is applied to the non-inverted input terminal of the second operational amplifier while a second constant voltage is applied through a resistor to the inverted input terminal of the second operatonal amplifier, thereby providing temperature-compensation of the output voltage of said first operational amplifier.

    摘要翻译: 一种用于照相机的测光电路,包括连接在其反相和非反相输入端子之间的光电元件的第一运算放大器和连接在第一运算放大器的输出端和反相输入端之间的对数压电二极管,因此 提供与在第一运算放大器的输出端子处拍摄的物体的亮度的对数值相对应的电压。第二运算放大器具有多个温度补偿共极化二极管,并联连接在其反相输入端和 输出端子。 第一恒定电压施加到第二运算放大器的非反相输入端,而第二恒定电压通过电阻施加到第二操作放大器的反相输入端,从而提供所述第二运算放大器的输出电压的温度补偿 第一运算放大器。

    Power supply device for camera
    3.
    发明授权
    Power supply device for camera 失效
    相机电源装置

    公开(公告)号:US4387977A

    公开(公告)日:1983-06-14

    申请号:US85230

    申请日:1979-10-16

    IPC分类号: G03B7/26 G03B9/08

    CPC分类号: G03B7/26

    摘要: The disclosed camera power control devices operate with a camera in which a first switch responds to initial movement of a shutter release member, and a second switch responds to further movement of the release member. In the power control device, turning the first switch on energizes the light metering and display circuits, and turning on the second switch supplies an exposure control circuit such as a shutter control circuit with electrical energy. The power control device is provided with an electrical timer circuit, and a selection arrangement operates to selectively actuate the timer circuit when the release member is returned to its rest position and the first switch changes is state from ON to OFF. During a period of time determined by the timer circuit, power continues to be supplied to operate the light metering and display circuits.

    摘要翻译: 所公开的照相机功率控制装置与其中第一开关响应快门释放构件的初始移动的照相机一起操作,并且第二开关响应于释放构件的进一步移动。 在功率控制装置中,转动第一开关使得计量和显示电路通电,并且打开第二开关为电能提供诸如快门控制电路的曝光控制电路。 功率控制装置设置有电定时器电路,并且当释放构件返回到其静止位置并且第一开关从接通变为断开状态时,选择装置用于选择性地启动定时器电路。 在由定时器电路确定的时间段期间,继续供电以操作测光和显示电路。

    Camera having a sound-making element
    5.
    发明授权
    Camera having a sound-making element 失效
    相机具有声音元素

    公开(公告)号:US4322146A

    公开(公告)日:1982-03-30

    申请号:US151698

    申请日:1980-05-20

    IPC分类号: G03B17/18 G03B17/40 G03B7/081

    摘要: The present invention relates to a camera having a sound-making element provided at a suitable position thereof in which sound signals are used as warning signals or confirming signals for operation of a self-timer.Sound control of said sound-making element is done by using counting signals of a binary counter which digitally controls the camera.Sound signals as warning signals and those as confirming signals for operation of a self-timer are distinguished by a difference in oscillation pulses.

    摘要翻译: 本发明涉及具有设置在其适当位置的声音元件的相机,其中声音信号被用作警告信号或确认用于自拍的操作的信号。 所述声音元件的声音控制通过使用数字控制相机的二进制计数器的计数信号来完成。 作为警告信号的声音信号和作为自拍定时器操作的确认信号的声音信号被振荡脉冲的差异区分。

    Digital camera
    6.
    发明授权
    Digital camera 失效
    数码相机

    公开(公告)号:US4286849A

    公开(公告)日:1981-09-01

    申请号:US009806

    申请日:1979-02-06

    IPC分类号: G03B7/08 G03B7/091 G03B7/097

    CPC分类号: G03B7/097 G03B7/0807

    摘要: A digital camera with five automatic exposure modes is provided with corresponding individual cards upon selective insertion into the camera to effect the operation of either or both of the shutter and diaphragm in accordance with the digital output of a computer through logic selection circuits as the mode information on the inserted card is read into a binary coded decimal counter controlling operation of the logic circuits. When the card is absent from the camera, a first controlling push button for sequential display of the modes is rendered effective to pass a pulse train to the counter so that upon release of the button, the current mode displayed can be set. The card further includes information relating to the determination of whether or not to give a sound warning signal which occurs, in one embodiment, when the film nears the terminal end of footage. In another embodiment, the buzzer is utilized to assist in releasing not only a first but also an additional three buttons for setting exposure factors and a number of film frames available just after a desired symbol or digital value appears in the display as they are sequentially presented.

    摘要翻译: 具有五种自动曝光模式的数码相机在选择性地插入相机中时具有相应的单独的卡,以通过作为模式信息的逻辑选择电路根据计算机的数字输出来实现快门和隔膜中的任一个或两者的操作 在插入的卡上读入二进制编码十进制计数器来控制逻辑电路的操作。 当相机不存在卡时,用于顺序显示模式的第一控制按钮被有效地将脉冲串传递到计数器,使得在释放按钮时,可以设置显示的当前模式。 在一个实施例中,该卡还包括关于是否发出声音警告信号的确定的信息,当电影接近镜头的终端时。 在另一个实施例中,蜂鸣器用于帮助不仅释放第一个而且还附加三个按钮,用于设置曝光因子,并且在按顺序显示之后显示器中出现期望的符号或数字值之后可用的胶片帧数量 。

    Camera having a release control device
    8.
    发明授权
    Camera having a release control device 失效
    相机具有释放控制装置

    公开(公告)号:US4219260A

    公开(公告)日:1980-08-26

    申请号:US883904

    申请日:1978-03-06

    IPC分类号: G03B7/083 G03B9/64 G05B13/02

    CPC分类号: G03B7/083

    摘要: The present invention relates to a camera having an exposure control device designed so that the light measurement, the exposure condition determination and the photographing operation are carried out by means of a release means including an electromagnet element to be controlled by means of a plural number of switches operating successively with the release operation of the camera. The invention is characterized in that the time at which the output signal of the control circuit for controlling the operation of the camera after the light measurement in accordance with the magnitude of the output signal of the light measuring means is controlled so as to be delayed in such a manner that a correct operation can be obtained even if the light measuring time is short.

    摘要翻译: 本发明涉及一种具有曝光控制装置的相机,该曝光控制装置被设计成使得光测量,曝光条件确定和拍摄操作通过包括通过多个 开关随着照相机的释放操作而连续工作。 本发明的特征在于,根据光测量装置的输出信号的大小来控制用于控制光测量之后的照相机的操作的控制电路的输出信号的时间,以便被延迟 即使光测量时间短,也能够得到正确的动作。

    Centrifugal brakes for focal plane shutters
    9.
    发明授权
    Centrifugal brakes for focal plane shutters 失效
    焦平面百叶窗的离心式制动器

    公开(公告)号:US4204762A

    公开(公告)日:1980-05-27

    申请号:US942031

    申请日:1978-09-13

    IPC分类号: G03B9/28 G03B9/32

    CPC分类号: G03B9/32

    摘要: In a focal plane shutter having two curtains which unwind from shafts after being released, the shaft controls a master gear, causing a keying pin on the latter to activate braking action on the curtain at a time interval near the terminal end of running-down movement of the curtain, as a pair of heavy expanding frictional shoes are driven to rotate at accelerated speeds and pressed against the internal surface of a fixed drum by a centrifugal force. During the shutter cocking operation, the key is taken out of connection with the brake so that the driving torque of the film winding shaft is correspondingly decreased.

    摘要翻译: 在具有两个窗帘的焦平面挡板中,该帘幕在松开之后从轴展开,该轴控制主齿轮,使其上的键锁销在后退运动终端附近的时间间隔上启动帘幕上的制动作用 的帘子,因为一对重的膨胀摩擦鞋被驱动以加速的速度旋转并通过离心力压靠在固定的滚筒的内表面上。 在快门启动操作期间,钥匙与制动器连接而取出,使得卷绕轴的驱动扭矩相应地减小。

    Motor drive unit for a camera
    10.
    发明授权
    Motor drive unit for a camera 失效
    摄像机的电机驱动单元

    公开(公告)号:US4176936A

    公开(公告)日:1979-12-04

    申请号:US861905

    申请日:1977-12-19

    CPC分类号: G03B17/425 G03B7/0807

    摘要: A motor drive unit adapted for use with a camera having a motorized shutter speed adjusting device. When a continuous series of frame exposures are to be made at a predetermined frame frequency, the set value of shutter time in the camera is made to be compared with the longest possible shutter time dependent upon that frame frequency by a comparator provided in the motor drive unit. When the actual shutter time value exceeds the longest possible one, the motorized shutter speed adjusting device is actuated, causing the shutter time value to change itself to the longest possible value.

    摘要翻译: 适用于具有电动快门速度调节装置的相机的电机驱动单元。 当以预定的帧频率进行连续的帧曝光系列时,将照相机中的快门时间的设定值与通过电动机驱动器中提供的比较器相关的取决于该帧频的最长可能的快门时间进行比较 单元。 当实际快门时间值超过最长时间时,电动快门速度调节装置被启动,使得快门时间值自身改变到最长可能的值。