Automatic focusing control system
    1.
    发明授权
    Automatic focusing control system 失效
    自动对焦控制系统

    公开(公告)号:US4777505A

    公开(公告)日:1988-10-11

    申请号:US928164

    申请日:1986-11-07

    CPC分类号: G02B7/36

    摘要: An automatic focusing control system includes a focus detecting light detector, a rangefinder, a lens driver, a manual range setting unit, a mode setting unit, and a control unit. When a manual mode is selected by the mode setting unit, the control unit applies a lens driving signal from the manual range setting unit to the lens driver unit to drive a lens. When an automatic mode is selected by the mode setting unit, the control unit operates the lens driver unit to drive the lens based on a measured distance at the time distance measurement is possible, applies the lens driving signal from the manual range setting unit to the lens driver unit at the time distance measurement is impossible, and operates the lens driver unit to drive the lens based on the measured distance at the time distance measurement becomes possible from a condition in which distance measurement is impossible.

    摘要翻译: 自动对焦控制系统包括焦点检测光检测器,测距仪,透镜驱动器,手动量程设置单元,模式设置单元和控制单元。 当通过模式设置单元选择手动模式时,控制单元将来自手动范围设置单元的镜头驱动信号施加到镜头驱动器单元以驱动镜头。 当通过模式设置单元选择自动模式时,控制单元操作透镜驱动单元以在距离测量可能时基于测量距离来驱动透镜,将来自手动范围设置单元的透镜驱动信号应用于 透镜驱动器单元在距离测量不可能的情况下操作,并且在距离测量不可能的条件下,基于测量距离来操作透镜驱动单元以驱动透镜。

    Focus detecting device and image signal amplifier circuit therefor
    2.
    发明授权
    Focus detecting device and image signal amplifier circuit therefor 失效
    对焦检测装置及其图像信号放大电路

    公开(公告)号:US4763154A

    公开(公告)日:1988-08-09

    申请号:US946032

    申请日:1986-12-24

    IPC分类号: G02B7/36 G03B3/00

    CPC分类号: G02B7/36

    摘要: An image signal amplifier circuit includes an amplifier for amplifying an image signal from a focusdetecting self-scanned image sensor, and a monitor photodetector for detecting the brightness of an object to be photographed. The amplification degree of the image signal is controlled by an automatic gain controller in the amplifier based on an output signal from the monitor photodetector so that the image signal as amplified will be of a constant level. An offset voltage is added to an output signal from the amplifier.

    摘要翻译: 图像信号放大器电路包括用于放大来自聚焦检测自扫描图像传感器的图像信号的放大器和用于检测待拍摄物体的亮度的监视光电检测器。 基于来自监视光电检测器的输出信号,放大器中的自动增益控制器控制图像信号的放大度,使得放大的图像信号将成为恒定电平。 偏移电压被加到来自放大器的输出信号。

    Auto-focus arithmetic device
    3.
    发明授权
    Auto-focus arithmetic device 失效
    自动对焦算术装置

    公开(公告)号:US4831405A

    公开(公告)日:1989-05-16

    申请号:US104989

    申请日:1987-10-06

    CPC分类号: G02B7/36

    摘要: An auto-focus arithmetic device suitable for use in a photographic camera is provided. The device includes a photographic lens which is movable along a predetermined optical axis and a CCD for detecting light coming from a subject of interest through the lens. An arithmetic unit for determining the direction and amount of movement of the lens with respect to the subject of interest based on a detection signal from the CCD is provided. The arithmetic unit includes an integer portion calculating sub-unit for calculating an integer portion of the detection signal and a fractional portion calculating sub-unit for calculating a fractional portion of the detection signal. The fractional portion calculating sub-unit remains deactivated as long as the detected amount of discrepancy from the in-focus condition is larger than a predetermined level; however, it is activated when the detected amount of discrepancy becomes equal to or less than the predetermined level. In this manner, in accordance with the present invention, the integer and fractional portion calculating sub-units are used alternately.

    摘要翻译: 提供适用于照相机的自动对焦运算装置。 该装置包括可沿预定光轴移动的照相镜头和用于检测通过透镜的感兴趣对象的光的CCD。 提供了一种用于基于来自CCD的检测信号确定透镜相对于感兴趣对象的移动方向和移动量的运算单元。 算术单元包括用于计算检测信号的整数部分的整数部分计算子单元和用于计算检测信号的小数部分的分数部分计算子单元。 只要检测到的从对焦条件的差异量大于预定水平,分数部分计算子单元就保持停用。 然而,当检测到的差异量变得等于或小于预定水平时,它被激活。 以这种方式,根据本发明,交替使用整数和分数部分计算子单元。

    Apparatus for controlling a motor in a camera
    4.
    发明授权
    Apparatus for controlling a motor in a camera 失效
    用于控制照相机中的电动机的装置

    公开(公告)号:US4818921A

    公开(公告)日:1989-04-04

    申请号:US90348

    申请日:1987-08-28

    CPC分类号: G03B17/425

    摘要: An apparatus for controlling a motor in a camera including, a motor drive unit for driving the motor in a prescribed sequence, a braking device for applying the brakes on the motor in accordance with the prescribed sequence, and a speed detecting unit for monitoring the speed of the motor and permitting initiation of the next action only after the speed of the motor, in consequence of application of the brakes by the braking device, is brought to a level incapable of obstructing the next action.

    摘要翻译: 一种用于控制照相机中的电动机的装置,包括:用于按照规定顺序驱动电动机的电动机驱动单元,根据规定顺序将制动器施加在电动机上的制动装置;以及速度检测单元, 并且仅在由于制动装置施加制动器的电动机的速度之后才允许启动下一个动作,达到不能阻挡下一个动作的水平。

    Varifocal lens device
    6.
    发明授权
    Varifocal lens device 失效
    变焦镜头装置

    公开(公告)号:US4881799A

    公开(公告)日:1989-11-21

    申请号:US184023

    申请日:1988-04-20

    IPC分类号: G02B7/10

    CPC分类号: G02B7/102

    摘要: Compensation of a deviation produced in the image forming position of a varifocal lens in consequence of magnification is attained by transforming a compensation amount into a relative amount of movement through arithmetic operation and driving the focusing lens group of the varifocal lens until the actual amount of movement conforms to the value obtained by the transformation.

    摘要翻译: 通过将补偿量变换为通过算术运算的相对移动量并驱动变焦透镜的聚焦透镜组直到实际移动量达到通过变倍结果在变焦透镜的图像形成位置中产生的偏差的补偿 符合通过变换获得的值。

    Automatic focusing device for use in a camera
    7.
    发明授权
    Automatic focusing device for use in a camera 失效
    自动对焦装置用于相机

    公开(公告)号:US4825237A

    公开(公告)日:1989-04-25

    申请号:US169470

    申请日:1988-03-17

    CPC分类号: G02B7/282

    摘要: An automatic focusing device for use in a camera using photographic lenses having a variable power region in which an entire focal length of a variable power optical system comprising a variable power lens group, a focusing lens group and a macro lens group disposed on an identical optical axis can optionally be set by the variable power lens group between a shortest focal length and a longest focal length, a macro region capable of macro photographing by the macro lens group, a variable power focusing region from an infinite position to a nearest position on the optical axis corresponding to an object distance from an infinite distance to a nearest distance and a macro focusing region capable of macro photographing in a predetermined region disposed from a nearest position on a side opposite to an infinite position.

    摘要翻译: 一种用于摄像机的自动对焦装置,其使用具有可变功率区域的摄影透镜,其中包括可变功率透镜组,聚焦透镜组和微透镜组的可变光焦度系统的整个焦距设置在相同的光学 轴可以由可变功率透镜组在最短焦距和最长焦距之间设置,可由宏观透镜组进行宏观拍摄的宏观区域,从无限位置到最近位置的可变焦距区域 对应于从无限距离到最近距离的物体距离的光轴,以及能够在与无限位置相反的一侧上的最近位置设置的预定区域中的宏观拍摄的微距聚焦区域。

    Device and method for detecting a focusing state with reliability
checking
    8.
    发明授权
    Device and method for detecting a focusing state with reliability checking 失效
    用可靠性检查检测聚焦状态的装置和方法

    公开(公告)号:US4960986A

    公开(公告)日:1990-10-02

    申请号:US404568

    申请日:1989-09-08

    IPC分类号: G03B13/36 G02B7/34

    CPC分类号: G02B7/34

    摘要: A focus detecting device gathers first image data by a couple of linear arrays of photo diodes in a CCD, which are disposed oppositely with respect to an optical axis of an objective, and second image data by a couple of photo diodes arrayed disposed close to one of the photo diode arrays. A CPU calculates a integer part and fractional part of a displacement of first and second images represented by the first image data, and checks if the calculation results are reliable for focus detection, by using the first and second image data. A counter contained in the CPU counts the number of decisions of unreliable. When a count of counter reaches a preset value and when the latest decision of unreliability is made for the integer part calculation result, a subsequent lens drive is prohibited, and the integration by the CCD, and the integer part calculation are repeated, while presenting a display of "Unmeasurable". Further, an additional reliability check is made of the result of the latest integer part calculation. If the additional reliability check shows a satisfactory reliability, the CPU goes out of the repetitive operation of the integration and the integer part calculation, and removes the prohibition of the lens drive.

    摘要翻译: 焦点检测装置通过在相对于物镜的光轴相对设置的CCD中的一对光电二极管线阵列来收集第一图像数据,并且通过布置成接近于一个的一对光二极管排列第二图像数据 的光电二极管阵列。 CPU计算由第一图像数据表示的第一和第二图像的位移的整数部分和小数部分,并且通过使用第一和第二图像数据来检查计算结果是否可靠地进行焦点检测。 CPU中包含的计数器计数不可靠的决定数。 当计数器的计数达到预设值时,当对整数部分计算结果进行不可靠的最新决定时,禁止随后的镜头驱动,并且重复进行CCD的积分和整数部分的计算,同时呈现 显示“不可测量”。 此外,对最新整数部分计算的结果进行额外的可靠性检查。 如果附加的可靠性检查显示令人满意的可靠性,则CPU不再进行积分和整数部分计算的重复操作,并且消除了对镜头驱动器的禁止。

    Variable focal lens device
    9.
    发明授权
    Variable focal lens device 失效
    可变焦距镜头装置

    公开(公告)号:US4861146A

    公开(公告)日:1989-08-29

    申请号:US146394

    申请日:1988-01-21

    IPC分类号: G02B7/10

    CPC分类号: G02B7/102

    摘要: A variable focal lens device having an optical system comprising a variable power lens group and a focusing lens group disposed on one identical optical axis in which a deviation of a focusing position is resulted with an identical object when the focusing lens group is set at a predetermined focusing position from a nearest position to an infinite position on the optical axis corresponding too an object distance from a nearest distance to an infinite distance and then moving the variable power lens group along the optical axis thereby renewing an entire system focal length of the variable power optical system from a first focal length to a second focal length.

    摘要翻译: 一种可变焦距透镜装置,其具有光学系统,该光学系统包括可变功率透镜组和聚焦透镜组,所述聚焦透镜组设置在聚焦位置的偏差由聚焦透镜组设定在预定的相同对象上的同一光轴上 聚焦位置从光轴上的最近位置到无限位置对应于从最近距离到无限距离的物体距离,然后沿着光轴移动可变功率透镜组,从而更新可变功率的整个系统焦距 光学系统从第一焦距到第二焦距。

    Camera having blurring movement correction mechanism
    10.
    发明授权
    Camera having blurring movement correction mechanism 失效
    摄像机具有模糊移动校正机制

    公开(公告)号:US5192964A

    公开(公告)日:1993-03-09

    申请号:US847759

    申请日:1992-03-04

    IPC分类号: G03B5/00 H04N5/232

    摘要: A camera having blurring movement correction mechanism comprising: an optical element arranged to correct shift of an image formed on a film surface caused by movement of hands holding a camera body; an actuator for moving the optical element in a necessary direction for correcting the image shift; a detection unit for obtaining a blurring movement detection data by converting the movement of the camera body to an electric signal; a first memory unit for temporarily registering the detection data output from the detection unit; a calculation unit for calculating blurring movement correction data for correcting the image shift caused by movement of the camera body by actuating the optical element by the actuator; and a second memory unit for temporarily registering data of calculation. The correction data is predictively calculated from the detection data of this time obtained from the detection unit, the detection data of the preceding time registered in the first memory unit and the correction data of the preceding time registered in the second memory unit.

    摘要翻译: 一种具有模糊移动校正机构的相机,包括:光学元件,被配置为校正由保持相机主体的手的运动引起的在胶片表面上形成的图像的偏移; 用于沿所需方向移动光学元件以校正图像偏移的致动器; 检测单元,用于通过将相机主体的移动转换为电信号来获得模糊运动检测数据; 第一存储单元,用于临时登记从检测单元输出的检测数据; 计算单元,用于计算用于通过致动器致动光学元件来校正由相机主体的移动引起的图像偏移的模糊移动校正数据; 以及用于临时登记计算数据的第二存储器单元。 根据从检测单元获得的该时间的检测数据,在第一存储单元中登记的先前时间的检测数据和在第二存储单元中登记的先前时间的校正数据,预测地计算校正数据。