Distance measuring device for a camera
    21.
    发明授权
    Distance measuring device for a camera 失效
    摄像机距离测量装置

    公开(公告)号:US5357309A

    公开(公告)日:1994-10-18

    申请号:US40062

    申请日:1993-03-30

    申请人: Yoichi Seki

    发明人: Yoichi Seki

    CPC分类号: G02B7/32 G01S11/12 G01S17/46

    摘要: A camera distance measuring device in which center, left and right peripheral beams for illuminating a subject are emitted from the center, left and right infrared-emitting diodes, respectively. First and second intermediate electrodes are provided between a pair of electrodes of a position sensitive device. An arithmetic circuit calculates center, left and right distance data from a composite output of a plurality of amplifiers delivered synchronously with each of the center, left and right peripheral beams incident on the position sensitive device.

    摘要翻译: 照相机距离测量装置,其中分别从中心,左右红外发射二极管发射用于照明被摄体的中心,左右外围光束。 第一和第二中间电极设置在位置敏感器件的一对电极之间。 算术电路从入射在位置敏感装置上的中心,左右外围光束的每一个同时输出的多个放大器的复合输出中计算中心,左右距离数据。

    Circuit for detecting back light
    22.
    发明授权
    Circuit for detecting back light 失效
    电路检测背光

    公开(公告)号:US4945378A

    公开(公告)日:1990-07-31

    申请号:US290451

    申请日:1988-12-27

    IPC分类号: G01J1/44 G03B7/28

    CPC分类号: G03B7/099

    摘要: A circuit for detecting back light comprises a time constant circuit including a capacitor selectively connectable in series with either a resistive element, or one of two CdS photoconductive elements used to measure the central and surrounding portions, respectively, of an object being photographed. Three switches separately conect the resistive element and the two photoconductive elements in series with the capacitor. A circuit generates pulses for a length of time governed by a time constant determined by the time constant circuit, and three separate counters store the pulses the number of which is determined by the time constant. An arithmetic circuit processes the pulses stored in the counters to determine the amount of back light present on the object.

    摘要翻译: 用于检测背光的电路包括时间常数电路,时间常数电路包括可选择性地与电阻元件或两个CdS光导元件中的一个串联选择的电容器,所述电容元件分别用于测量被拍摄物体的中心部分和周围部分。 三个开关分别将电阻元件和两个光电元件串联连接到电容器。 电路产生的脉冲长度由时间常数电路确定的时间常数决定,三个独立的计数器存储由时间常数确定的脉冲数。 算术电路处理存储在计数器中的脉冲以确定物体上存在的背光的量。

    Automatic film sensitivity change-over device
    23.
    发明授权
    Automatic film sensitivity change-over device 失效
    自动胶片感光度转换装置

    公开(公告)号:US4702579A

    公开(公告)日:1987-10-27

    申请号:US766031

    申请日:1985-08-15

    IPC分类号: G03B7/24 G03B7/00

    CPC分类号: G03B7/24

    摘要: A device which includes means for detecting a film sensitivity code based upon International Standardization Organization and provided on a film cartridge when the film cartridge is loaded, whereby it is determined whether or not a film is one whose cartridge has a code provided thereon by adding 1 to the film sensitivity code detected the means to detect if a carry-over appears or not.

    摘要翻译: 一种装置,其包括用于检测基于国际标准化组织的胶片敏感性代码并且当胶片暗盒被装载时在暗盒上提供的装置,由此确定胶片是否是其胶卷具有其上提供的代码的装置, 检测到电影敏感度代码检测是否出现结转的方法。

    Control circuit for program shutter
    24.
    发明授权
    Control circuit for program shutter 失效
    节目快门控制电路

    公开(公告)号:US4648701A

    公开(公告)日:1987-03-10

    申请号:US734039

    申请日:1985-05-14

    CPC分类号: G03B9/24 G03B7/097

    摘要: In a program shutter including a forwardly/reversely rotatable step motor for opening and closing a shutter blade to effect automatic exposure, a drive pulse number and an interpolation quantity are set in first and second counters. A step drive pulse is generated by the first counter to start opening the sectors. After a final pulse is generated, the second counter is started, and at the timing when the time corresponding to the interpolation quantity is elapsed, the step motor is reversely rotated thereby to fractionate a gap between steps and obtain a proper exposure quantity.

    摘要翻译: 在包括用于打开和关闭快门叶片以实现自动曝光的向前/反向可旋转的步进电机的程序快门中,在第一和第二计数器中设置驱动脉冲数和内插量。 由第一计数器产生阶跃驱动脉冲以开始扇区。 在产生最终脉冲之后,开始第二计数器,并且在经过与内插量相对应的时间的定时,步进电机反向旋转,从而分离步骤之间的间隙并获得适当的曝光量。

    Device for detecting coincident focusing points
    25.
    发明授权
    Device for detecting coincident focusing points 失效
    用于检测重合聚焦点的装置

    公开(公告)号:US4389105A

    公开(公告)日:1983-06-21

    申请号:US961742

    申请日:1978-11-17

    CPC分类号: G02B7/34

    摘要: A device for detecting coincident focusing points for use in the controlling of the focusing of an automatically focusable lens comprises a single array of light receiving transducers for converting the distribution of light intensity of an image applied thereon to a set of corresponding electrical signals. The image applied to the array is from a first optical path from an object through the lens and from a second optical path from the object. At least one shutter is provided for cutting off one of the optical paths to alternatively effect the application of light from the one optical path on to the array to produce a first set of signals and thereafter the light from either the other optical path or the sum of the two optical paths on to the array to produce a second set of signals. The first set of signals are processed to produce a third set of signals which correspond to the ratio of each signal therein with respect to another of the signals and the second set of signals is processed to obtain a fourth set of signals corresponding to the ratio of each signal with respect to another of the signals. The third and fourth sets of signals, for each transducer, are compared and a signal is produced when a favorable comparison is obtained.

    摘要翻译: 用于检测用于控制自动聚焦透镜的聚焦的重合聚焦点的装置包括用于将施加于其上的图像的光强度分布转换为一组相应电信号的单个光接收传感器阵列。 应用于阵列的图像是从物体通过透镜的第一光路和来自物体的第二光路。 提供至少一个快门以切断光路中的一个,以交替地影响将光从一个光路施加到阵列上以产生第一组信号,此后来自另一个光路或总和的光 的两条光路通向阵列以产生第二组信号。 处理第一组信号以产生对应于其中的每个信号相对于另一个信号的比率的第三组信号,并且第二组信号被处理以获得对应于第二组信号的比率 每个信号相对于另一个信号。 对于每个换能器,第三和第四组信号进行比较,并且当获得有利的比较时产生信号。

    Time detecting device for alarm clock
    26.
    发明授权
    Time detecting device for alarm clock 失效
    闹钟时间检测装置

    公开(公告)号:US4376994A

    公开(公告)日:1983-03-15

    申请号:US218184

    申请日:1980-12-19

    CPC分类号: G04B23/021 G04C21/205

    摘要: The cam type time detecting mechanism of an alarm clock has a time gear wheel, an alarm gear wheel and a detecting plate, all mounted on a shaft. A hole is formed on either the alarm gear wheel or the detecting plate and a projection is formed on the other. The detecting plate is movable on the shaft in the axial direction of the shaft. The time gear wheel and the detecting plate have guiding parts respectively so that the time gear wheel, in its normal rotation, continuously pushes and turns the detecting plate. At least one of the time gear wheel, the alarm gear wheel and the detecting plate has a cam for lifting up the detecting plate if the time gear wheel and the alarm gear wheel turn either in normal and reverse directions.

    摘要翻译: 闹钟的凸轮型时间检测机构具有时间齿轮,报警齿轮和检测板,全部安装在轴上。 在报警齿轮或检测板上形成一个孔,另一个形成一个突起。 检测板可以在轴上沿轴的轴向移动。 时间齿轮和检测板分别具有引导部件,使得时间齿轮在其正常旋转中连续地推动并转动检测板。 齿轮,报警齿轮和检测板中的至少一个齿轮和报警齿轮在正反方向转动时,都有一个用于提升检测板的凸轮。

    Driving mechanism for a timepiece
    27.
    发明授权
    Driving mechanism for a timepiece 失效
    钟表的驱动机构

    公开(公告)号:US4084403A

    公开(公告)日:1978-04-18

    申请号:US654224

    申请日:1976-02-02

    CPC分类号: G04C3/16 G04C13/11

    摘要: A driving mechanism including a stepping motor having a rotor which rotates through a certain angular interval each time the stepping motor is energized. A driving member having a plurality of radial slots is mounted for rotation about an axis and is rotated by the rotor. A driven member is mounted for rotation and includes a pin extending therefrom for engaging one of the slots as the driving member rotates and for disengaging from the one of the slots after the driving member has rotated past the certain angular interval, whereby the driven member is rotated through the certain angular interval upon energization of the stepping motor. The driving member includes arcuate peripheral portions over a limited angular extent and concentric with the axis of rotation of the driving member. The driven member includes concave arcuate portions of limited angular extend spaced about the periphery thereof. The driven member is rotatable to a position so that one of the arcuate portions is concentric with the axis of rotation of the driving member and extends along and opposite an arcuate peripheral portion of the driving member for preventing rotation of the driven member when an arcuate peripheral portion of the driving member and one of the corresponding concave arcuate peripheral portions of the driven member are opposed when the stepping motor is not energized.

    摘要翻译: 一种驱动机构,包括步进电动机,该步进电动机每当步进电动机通电时具有旋转一定角度间隔的转子。 具有多个径向槽的驱动构件被安装成围绕一个轴线旋转并被转子旋转。 被驱动构件被安装成旋转,并且包括从该驱动构件旋转经过该特定角度间隔之后,随着驱动构件旋转并与其中的一个槽脱离,从而使驱动构件旋转超过该特定角度间隔,从而使从动构件 在步进电机通电时旋转一定角度间隔。 驱动构件包括有限角度范围的弧形周边部分,并与驱动构件的旋转轴线同心。 被驱动构件包括围绕其周边间隔开的有限角度延伸的凹弧形部分。 被驱动构件可旋转到一个位置,使得弓形部分中的一个与驱动构件的旋转轴线同心,并且沿驱动构件的弓形周边部分延伸并相对于驱动构件的弧形周边部分,用于当弧形周边 驱动构件的一部分和从动构件的相应凹弧形周边部分中的一个在步进电机未通电时相对。

    Light measuring apparatus and camera using the light measuring apparatus
    29.
    发明授权
    Light measuring apparatus and camera using the light measuring apparatus 失效
    光测量装置和使用该光测量装置的照相机

    公开(公告)号:US6029014A

    公开(公告)日:2000-02-22

    申请号:US219998

    申请日:1998-12-23

    摘要: A light measuring apparatus comprises an oscillation circuit, a first delaying circuit for delaying an output waveform of the oscillation circuit in accordance with a peripheral brightness, a second delaying circuit for delaying an output waveform of the oscillation circuit for a predetermined period of time, and a brightness judging circuit for judging a peripheral brightness in accordance with outputs of the first and second delaying circuits.

    摘要翻译: 光测量装置包括振荡电路,用于根据外围亮度延迟振荡电路的输出波形的第一延迟电路,用于将振荡电路的输出波形延迟预定时间段的第二延迟电路;以及 亮度判断电路,用于根据第一和第二延迟电路的输出来判断外围亮度。

    Electronic circuit having electrically isolated digital and analog
circuitry
    30.
    发明授权
    Electronic circuit having electrically isolated digital and analog circuitry 失效
    电子电路具有电气隔离的数字和模拟电路

    公开(公告)号:US5621347A

    公开(公告)日:1997-04-15

    申请号:US288485

    申请日:1994-08-10

    CPC分类号: G03B7/0807

    摘要: In order to reduce noise in a controlling circuit including digital circuitry and analog circuitry constructed together on a single CMOS integrated circuit, a regulator is constructed as part of the integrated circuit. A power supply is directly connected to the digital circuitry, and a voltage output of the regulator is supplied to the analog circuitry. The output state of the regulator may be controlled by a switch. Degradation of the performance characteristics of the analog circuitry while the digital circuitry is being operated can be prevented by electrically isolating the power supply to the digital circuitry from the power supply to the analog circuitry. Since the regulator is built into the integrated circuit, the number of externally provided components is thereby reduced, further contributing to the downsizing of an electronic device such as a camera. Furthermore, even when the power supply of the digital circuitry fluctuates greatly, the effects on the analog circuitry are minimized.

    摘要翻译: 为了减少包括数字电路和在单个CMOS集成电路上一起构成的模拟电路的控制电路中的噪声,调节器被构造为集成电路的一部分。 电源直接连接到数字电路,并且调节器的电压输出被提供给模拟电路。 调节器的输出状态可以由开关控制。 可以通过将数字电路的电源与模拟电路的电源电隔离来防止数字电路正在运行时模拟电路的性能特性的降低。 由于调节器内置在集成电路中,因此减少了外部提供的部件的数量,这进一步有助于诸如照相机的电子设备的小型化。 此外,即使当数字电路的电源波动很大时,对模拟电路的影响也被最小化。