Camera shutter
    1.
    发明授权
    Camera shutter 失效
    相机快门

    公开(公告)号:US5181063A

    公开(公告)日:1993-01-19

    申请号:US719875

    申请日:1991-06-24

    摘要: A camera shutter system has a motor driven sector for opening and closing a shutter opening. A photo-interruptor is positioned to intercept a light beam, to effect the generation of a photo-interruptor signal. A timer has a counter that is set to a first count in response to the photo-interruptor signal, and is reset when a given count is reached. A shutter malfunction signal is generated when the level of the photo-interruptor signal has not changed by the time the given count is reached.

    摘要翻译: 相机快门系统具有用于打开和关闭快门开口的马达驱动扇区。 一个光电断路器被定位成拦截一个光束,以产生一个光电断路器信号。 定时器具有响应于光电断路器信号而被设置为第一计数的计数器,并且在达到给定计数时被复位。 当光接收器信号的电平没有改变到达到给定计数的时间时,产生快门故障信号。

    Camera shutter
    2.
    发明授权
    Camera shutter 失效
    相机快门

    公开(公告)号:US5181064A

    公开(公告)日:1993-01-19

    申请号:US719866

    申请日:1991-06-24

    摘要: A camera shutter system has a motor driven sector for opening and closing a shutter opening. A photo-interruptor is positioned to intercept a light beam, to effect the sequential generation of first and second photo-interruptor signal pulses, the first pulse having a width that is a function of the speed of the sector. A timer has a counter that is set to a first count corresponding to an exposure value that is a function of the brightness of an object to be photographed and the width of the first photo-interruptor signal. The timer is controlled to count down in response to the second photo-interruptor signal, and the sector driving motor is energized during the count down of the timer.

    摘要翻译: 相机快门系统具有用于打开和关闭快门开口的马达驱动扇区。 光中断器被定位成截取光束,以实现第一和第二光中断器信号脉冲的顺序生成,第一脉冲具有作为扇区速度的函数的宽度。 定时器具有被设置为对应于作为要拍摄对象的亮度和第一光中断信号的宽度的函数的曝光值的第一计数的计数器。 定时器被控制为响应于第二光中断器信号倒计时,并且扇区驱动电机在定时器的倒计时期间被通电。

    Camera shutter
    3.
    发明授权
    Camera shutter 失效
    相机快门

    公开(公告)号:US5237364A

    公开(公告)日:1993-08-17

    申请号:US717444

    申请日:1991-06-19

    CPC分类号: G03B7/10 G03B7/097 G03B9/60

    摘要: A camera shutter system includes a matrix memory, an arrangement for determining the initial speed of a shutter sector, and a source of exposure values. The memory stores shutter-exposure pulse data elements, and is addressed by functions of the determined speed and the exposure values. A motor coupled to the sector is controlled in response to an accessed pulse data element. The data elements may relate only to variable portions of movement of the shutter, and be added to fixed values in order to minimize the size of the memory.

    摘要翻译: 相机快门系统包括矩阵存储器,用于确定快门扇区的初始速度的装置和曝光值的源。 存储器存储快门曝光脉冲数据元素,并且通过确定的速度和曝光值的功能来寻址。 响应于所访问的脉冲数据元件来控制耦合到扇区的电动机。 数据元素可以仅涉及快门的可移动部分,并且被添加到固定值以便最小化存储器的尺寸。

    Arrangement for compensating for variable speed of a camera shutter
    4.
    发明授权
    Arrangement for compensating for variable speed of a camera shutter 失效
    用于补偿相机快门的变化速度的布置

    公开(公告)号:US5220376A

    公开(公告)日:1993-06-15

    申请号:US719880

    申请日:1991-06-24

    摘要: A camera shutter system has a motor driven sector for opening and closing a shutter opening. A photo-interruptor is positioned to intercept a light beam, to effect the outputting by the photo-interruptor of a signal pulse corresponding to the speed of the shutter. A memory storing exposure data, such as a matrix memory, is accessible as a function of the speed signal and an exposure quantity that is a function of the brightness of the brightness of an object to be photographed. The accessed exposure data is modified as a function of an observed exposure quantity.

    摘要翻译: 相机快门系统具有用于打开和关闭快门开口的马达驱动扇区。 一个光电断路器被定位成拦截一个光束,以实现由光电断路器对应于快门速度的信号脉冲的输出。 存储存储曝光数据的存储器,例如矩阵存储器,可以作为速度信号和作为要拍摄对象的亮度亮度的函数的曝光量的函数来访问。 所访问的曝光数据被修改为观察到的曝光量的函数。

    IMAGE DISPLAY APPARATUS
    5.
    发明申请
    IMAGE DISPLAY APPARATUS 审中-公开
    图像显示设备

    公开(公告)号:US20110285758A1

    公开(公告)日:2011-11-24

    申请号:US13112259

    申请日:2011-05-20

    IPC分类号: G09G5/10 G09G3/36

    摘要: An image display apparatus that displays an image with adjustments made in the luminance of the individual pixels of a display includes: a weighting portion which assigns weights to the luminance of the individual pixels according to their position on the display. The weights assigned as a result of the weighting are set so as to decrease from the center to the edge of the display.

    摘要翻译: 显示具有在显示器的各个像素的亮度的调整的图像的图像显示装置包括:加权部分,其根据它们在显示器上的位置来分配各个像素的亮度的权重。 作为加权结果分配的权重被设置为从显示器的中心到边缘减小。

    Camera
    6.
    发明授权
    Camera 失效
    相机

    公开(公告)号:US4920372A

    公开(公告)日:1990-04-24

    申请号:US376722

    申请日:1989-07-07

    CPC分类号: G03B7/10 G03B7/097 G03B9/08

    摘要: A camera having a lens shutter and a focal-plane shutter, includes a selector circuit for selecting either a lens shutter mode or a focal-plane shutter mode; a first driving device for controlling either the programmed exposure value of the lens shutter or the size of the aperture, the first driving device including a motor and an actuating member driven by the motor, the actuating member including a peripheral surface with a first cam for controlling the programmed exposure value of the lens shutter in response to forward rotation of the motor, and a second cam for controlling the size of the aperture in response to reverse rotation of the motor, the first cam having an inclination in a first direction and the second cam having a less steep inclination in an opposite direction; a pivotally mounted opening lever connecting the lens shutter to the actuating member, the lever defining a first arm and a second arm, the first arm in engagement with the actuating member and the second arm connected with the lens shutter, a first pin on the first arm which rides on the cams, and a second pin on the second arm to pivotally connect with shutter blades of the lens shutter; a spring biasing the first pin into engagement with the cams; a second driving device controlling the time of operation of the focal-plane shutter mode; and a sequential control circuit controlling the driving devices.

    摘要翻译: 具有透镜快门和焦平面快门的相机包括用于选择透镜快门模式或焦平面快门模式的选择器电路; 用于控制透镜快门的编程曝光值或光圈尺寸的第一驱动装置,第一驱动装置包括电动机和由电动机驱动的致动部件,致动部件包括具有第一凸轮的外周表面, 响应于电动机的正向旋转来控制镜头快门的编程曝光值;以及第二凸轮,用于响应于电动机的反向旋转来控制光圈的尺寸,第一凸轮具有在第一方向上的倾斜度, 第二凸轮在相反方向上具有较小的倾斜度; 枢轴安装的开启杆,将透镜快门连接到致动构件,所述杆限定第一臂和第二臂,所述第一臂与致动构件接合,第二臂与透镜快门连接;第一销在第一臂 骑在所述凸轮上的臂,以及在所述第二臂上的第二销,以与所述透镜快门的快门叶片枢转地连接; 将所述第一销偏置成与所述凸轮接合的弹簧; 控制焦平面快门模式的操作时间的第二驱动装置; 以及控制驱动装置的顺序控制电路。