Camera having automatic focus adjusting apparatus
    21.
    发明授权
    Camera having automatic focus adjusting apparatus 失效
    相机具有自动对焦调节装置

    公开(公告)号:US5434638A

    公开(公告)日:1995-07-18

    申请号:US928363

    申请日:1992-08-12

    IPC分类号: G02B7/36 G03B13/00

    CPC分类号: G02B7/36

    摘要: A camera having automatic focus adjusting apparatus employing a continuous photographing mode comprises a focus detecting apparatus for detecting a focusing condition of a photographic lens to output an amount of defocus, and an apparatus for detecting an amount of movement of an object by detecting the amount of defocus of the same object at different times. Since the amount of movement of the object is detected, whether the object is moving or not can be easily determined.

    摘要翻译: 具有采用连续拍摄模式的自动对焦调节装置的摄像机包括:焦点检测装置,用于检测摄影镜头的聚焦状态以输出一定量的散焦;以及一种用于通过检测物体的量来检测物体的移动量的装置 不同时间同一物体的散焦。 由于检测到物体的移动量,因此可以容易地确定物体是否移动。

    AF camera system
    22.
    发明授权
    AF camera system 失效
    AF相机系统

    公开(公告)号:US5212513A

    公开(公告)日:1993-05-18

    申请号:US640268

    申请日:1991-01-10

    IPC分类号: G02B7/28

    CPC分类号: G02B7/285

    摘要: An autofocus camera system for automatically controlling an objective lens for focusing an object includes a focus detector for detecting a focus condition of the photographing lens with respect to the object, an infocus condition detector for detecting an infocus condition of the photographing lens, a plurality of focus adjusting modes including a first mode for prohibiting lens movement after detecting an infocus condition and a second mode for adjusting the photographing lens after detecting an infocus condition, and a selector for automatically selecting one of the focusing adjustment modes.

    摘要翻译: 用于自动控制用于聚焦物体的物镜的自动对焦照相机系统包括:用于检测拍摄镜头相对于物体的聚焦状态的焦点检测器,用于检测拍摄镜头的聚焦状态的聚焦条件检测器,多个 在检测到聚焦条件之后包括用于禁止透镜移动的第一模式的焦点调节模式和在检测到聚焦条件之后调整拍摄镜头的第二模式以及用于自动选择聚焦调整模式之一的选择器。

    Automatic focus detection system
    23.
    发明授权
    Automatic focus detection system 失效
    自动对焦检测系统

    公开(公告)号:US4831403A

    公开(公告)日:1989-05-16

    申请号:US51138

    申请日:1987-05-15

    IPC分类号: G02B7/34 G02B7/36

    CPC分类号: G02B7/34 G02B7/36

    摘要: A camera with an automatic focusing device has an objective lens mounted on a camera. An image formed by the objective lens is divided into a plurality of zones. In each zone, a brightness distribution is obtained so as to detect a rough focusing condition in each zone, thereby producing a plurality of rough focusing condition data. Based on the result of the rough focusing condition data, one zone is selected. Furthermore, a precise focusing condition is detected in the selected zone based on the light contained in the selected zone, so as produce a precise focusing condition data. Based on the precise focusing condition data obtained from the selected zone, the object lens is driven to an infocus condition.

    摘要翻译: 具有自动对焦装置的相机具有安装在相机上的物镜。 由物镜形成的图像被分成多个区域。 在每个区域中,获得亮度分布,以便检测每个区域中的粗略聚焦状态,由此产生多个粗略聚焦条件数据。 根据粗略聚焦条件数据的结果,选择一个区域。 此外,基于所选择的区域中包含的光,在所选择的区域中检测精确的聚焦条件,以产生精确的聚焦条件数据。 基于从所选区域获得的精确聚焦条件数据,物镜被驱动到聚焦条件。

    Automatic focus control device for use in a camera system
    24.
    发明授权
    Automatic focus control device for use in a camera system 失效
    用于相机系统的自动对焦控制装置

    公开(公告)号:US4737813A

    公开(公告)日:1988-04-12

    申请号:US82095

    申请日:1987-08-05

    CPC分类号: G02B7/34

    摘要: In an automatic focus detection device for use in a camera, a focus condition detecting unit detects a focus condition of a photographic lens in a camera based on the output of a light receiving device and calculates the amount of defocus of the photographic lens. An auxiliary light emitting device emits auxiliary light and comparator compares the stored output of memory and the output of the light receiving device under the ambient light; and then the detected defocus amount under the auxiliary light emission is corrected in accordance with the result of comparison so as to eliminate the bad effect of the color aberration of the lens of the camera, whereby a correct focus position can be detected.

    摘要翻译: 在用于照相机的自动对焦检测装置中,焦点条件检测单元基于光接收装置的输出来检测照相机中的摄影镜头的焦点状况,并计算摄影镜头的散焦量。 辅助发光装置发射辅助光,比较在环境光下存储的存储输出和光接收装置的输出; 然后根据比较结果校正辅助发光下的检测到的散焦量,以消除照相机的透镜的色像差的不良影响,从而可以检测到正确的聚焦位置。

    Automatic focusing apparatus of a camera for photographing moving objects
    27.
    发明授权
    Automatic focusing apparatus of a camera for photographing moving objects 失效
    用于拍摄移动物体的相机的自动对焦装置

    公开(公告)号:US4988856A

    公开(公告)日:1991-01-29

    申请号:US351167

    申请日:1989-05-12

    IPC分类号: G03B13/36 G02B7/28 G02B7/36

    CPC分类号: G02B7/36

    摘要: An automatic focusing apparatus of a camera according to the present invention includes: a focus detector which detects repeatedly focus conditions of a photographic lens and outputs successively focus signals corresponding to the focus conditions; a drive unit for driving the photographic lens for focus adjustment; a predictor for predicting an in-focus detector; a control unit for controlling the drive unit to drive the photographic lens toward the in-focus point predicted by the predictor; an auxiliary light projector for projecting auxiliary light onto an object to enable detecting operation of the focus detector; and a forbidding device for forbidding the control of drive by the control unit while the auxiliary light is projected by the auxiliary light projector.

    Automatic focus adjusting apparatus

    公开(公告)号:US4931821A

    公开(公告)日:1990-06-05

    申请号:US368417

    申请日:1989-06-19

    IPC分类号: G02B7/36 G03B3/00

    CPC分类号: G02B7/36

    摘要: An automatic focus adjusting apparatus for adjusting automatically a focus condition of an objective lens includes a CCD array for receiving light from an object and producing a accumulated charge signal representing the accumulated charge. Using the accumulated charge signal it is detected whether or not the brightness of the object is above a predetermined level, and at the same time, the focusing condition of the objective lens is calculated. Using the calculated result, the focusing condition of the objective lens is adjusted in a controlled manner such that: when the brightness of the object is above the predetermined level, the objective lens moves even during the CCD array is operated to carry out the charge accumulation; but when the brightness of the object is below the predetermined level, the CCD array is operated only during when the objective lens is making no movement.

    Automatic focus detecting device
    29.
    发明授权
    Automatic focus detecting device 失效
    自动对焦检测装置

    公开(公告)号:US4905032A

    公开(公告)日:1990-02-27

    申请号:US267547

    申请日:1988-11-04

    CPC分类号: G02B7/346

    摘要: An automatic focusing condition detecting device comprising an objective lens; a light receiving unit having a plurality of receiving portions, each receiving portion being adapted to receive through the objective lens light from one of a plurality of focusing areas, respectively; a focus detecting unit for detecting based on the output of each receiving portion a focusing condition of the objective lens in the respective focusing area; a unit for judging based on the output of each receiving portion whether or not it is possible for the focus detecting unit to detect a focusing condition of the objective lens in the respective focusing area; a unit for driving the objective lens; and a unit for controlling the driving unit to drive the objective lens when the judging unit judges that it is possible for the focus detecting unit to detect a focusing condition in at least one but not whole of the focusing areas, for the purpose of investigation whether or not there is another focusing area where the focus detecting unit can detect a focusing condition.

    摘要翻译: 一种自动对焦条件检测装置,包括物镜; 光接收单元,具有多个接收部分,每个接收部分分别适于通过物镜从多个聚焦区域中的一个接收光; 焦点检测单元,用于基于每个接收部分的输出来检测物镜在各个聚焦区域中的聚焦状态; 用于基于每个接收部分的输出来判断焦点检测单元是否可以检测各个聚焦区域中的物镜的聚焦状态的单元; 用于驱动物镜的单元; 以及用于当判断单元判断焦点检测单元可以检测至少一个但不是整个聚焦区域的聚焦条件时,用于控制驱动单元来驱动物镜的单元,以便调查是否 或者不存在焦点检测单元可以检测聚焦条件的另一聚焦区域。

    Automatic focus adjusting apparatus
    30.
    发明授权
    Automatic focus adjusting apparatus 失效
    自动对焦调节装置

    公开(公告)号:US4888609A

    公开(公告)日:1989-12-19

    申请号:US186882

    申请日:1988-08-09

    IPC分类号: G02B7/36

    CPC分类号: G02B7/36

    摘要: An automatic focus adjusting apparatus for adjusting automatically a focus condition of an objective lens includes a CCD array for receiving light from an object and producing a accumulated charge signal representing the accumulated charge. Using the accumulated charge signal it is detected whether or not the brightness of the object is above a predetermined level, and at the same time, the focusing condition of the objective lens is calculated. Using the calculated result, the focusing condition of the objective lens is adjusted in a controlled manner such that: when the brightness of the object is above the predetermined level, the objective lens moves even during the CCD array is operated to carry out the charge accumulation; but when the brightness of the object is below the predetermined level, the CCD array is operated only during when the objective lens is making no movement.

    摘要翻译: 用于自动调节物镜的聚焦条件的自动聚焦调节装置包括用于从物体接收光并产生表示累积电荷的累积电荷信号的CCD阵列。 使用累积的充电信号,检测物体的亮度是否高于预定水平,并且同时计算物镜的聚焦状态。 使用计算结果,以受控的方式调节物镜的聚焦状态,使得:当物体的亮度高于预定水平时,即使在CCD阵列期间,物镜也移动以执行电荷累积 ; 但是当物体的亮度低于预定水平时,CCD阵列仅在物镜不移动时才起作用。