AF camera system
    31.
    发明授权
    AF camera system 失效
    AF相机系统

    公开(公告)号:US5223886A

    公开(公告)日:1993-06-29

    申请号:US756424

    申请日:1991-09-09

    IPC分类号: G02B7/28

    CPC分类号: G02B7/285

    摘要: An AF camera system for automatically controlling an objective lens for focusing an object includes a focus detector for generating a defocus data DF carrying information of a defocus amount and a defocus direction based on a focus condition of an object to be focused through an objective lens detected in a detection cycle, an infocus detector for detecting an infocus condition based on the defocus data, a lens driver for driving the objective lens based on the defocus amount and defocus direction carried in the defocus data DF when the infocus detection mean did not detect the infocus condition; and a control for controlling the focus adjustment based on defocus data and/or the detection of the infocus condition detected by the infocus detection means.

    摘要翻译: 用于自动控制用于聚焦物体的物镜的AF相机系统包括焦点检测器,用于基于被检测物镜的待聚焦物体的聚焦条件来产生携带散焦量和散焦方向信息的散焦数据DF 在检测周期中,用于根据散焦数据检测聚焦条件的聚焦检测器,用于当聚焦检测装置没有检测到散焦数据DF时基于散焦量和散焦方向驱动物镜的透镜驱动器 聚焦条件; 以及用于基于散焦数据控制焦点调整的控制和/或由焦点检测装置检测到的聚焦状态的检测。

    Distance measuring system
    32.
    发明授权
    Distance measuring system 失效
    距离测量系统

    公开(公告)号:US5191384A

    公开(公告)日:1993-03-02

    申请号:US631225

    申请日:1990-12-21

    IPC分类号: G01S17/08 G01S17/46 G02B7/32

    CPC分类号: G01S17/48 G01S17/08 G02B7/32

    摘要: A distance measuring system of the active type for measuring a distance ranging from a short distance to a long distance with a high degree of accuracy. The system comprises light emitting means, three or more light receiving elements, and a selecting means for selecting output signals of different selected pairs of light receiving elements when the light emitting means emits light for first and second times for measuring distances within short and long distance ranges, respectively. The output signals in each selected pair are compared with one another to obtain ratios between them, and distances are calculated based on the ratios thus obtained. A distance to the object is then determined based on the calculated distances. Where the distance measuring system is incorporated in a camera, the lens of the camera is actuated in accordance with the distance value measured by the system.

    摘要翻译: 用于以高精度测量从短距离到远距离的距离的有源类型的距离测量系统。 该系统包括发光装置,三个或更多个光接收元件,以及选择装置,用于当发光装置发光以进行第一次和第二次以测量短距离和长距离内的距离时,选择不同选定的一对光接收元件的输出信号 范围。 将每个选择的对中的输出信号彼此进行比较以获得它们之间的比例,并且基于由此获得的比率来计算距离。 然后基于所计算的距离来确定到物体的距离。 在距离测量系统结合在照相机中的情况下,照相机的透镜根据系统测量的距离值来启动。

    Automatic focus control device having a plurality of focus detection
areas
    33.
    发明授权
    Automatic focus control device having a plurality of focus detection areas 失效
    具有多个焦点检测区域的自动聚焦控制装置

    公开(公告)号:US5049731A

    公开(公告)日:1991-09-17

    申请号:US457898

    申请日:1989-12-27

    IPC分类号: G02B7/34

    CPC分类号: G02B7/346

    摘要: An automatic focus control device including a plurality of photo-sensors corresponding, respectively, to a plurality of focus detecting regions, an optical system for guiding light to the photo-sensors, a first calculating device for calculating first defocus amounts upon reception of signals from the photo-sensors, respectively, a storage for storing deviation amounts in a direction of an optical axis for the focus detecting regions, respectively and a second calculating device for calculating second defocus amounts corrected on the basis of the first defocus amounts and the deviation amounts, respectively.

    Photographic camera
    34.
    发明授权

    公开(公告)号:US4963916A

    公开(公告)日:1990-10-16

    申请号:US203892

    申请日:1988-06-08

    CPC分类号: G03B9/08

    摘要: A photographic camera of the type including a piezo-electric actuating element driven by energy accumulated in a capacitor for actuating a shutter wherein the piezo-electric element operates in stability to assure accurate appropriate opening and closing operation of the shutter of the camera and the capacitor is charged up rapidly to allow subsequent photographing operation to be done in a minute. In the camera, a charged voltage of the capacitor is checked several times to determine if it is sufficient to assure proper operation of the piezoelectric element, and if a then required level is not reached, then the capacitor is charged to the required voltage. While the capacitor is being charged, charging of a capacitor for a flash is inhibited. For operation of the shutter, a negative voltage is first applied across the piezo-electric element to set the same to its fixed home position, and then a positive voltage is applied to move the shutter from the home position to a predetermined opening position, whereafter the negative voltage is applied again to return the shutter to its initial position rapidly. The position of the shutter is also checked to assure proper operation of the camera.

    Automatic focus detecting apparatus
    36.
    发明授权
    Automatic focus detecting apparatus 失效
    自动对焦检测装置

    公开(公告)号:US4952965A

    公开(公告)日:1990-08-28

    申请号:US299646

    申请日:1989-01-23

    IPC分类号: G02B7/36

    CPC分类号: G02B7/36

    摘要: An improved focus detecting apparatus comprises a photographic lens, focus adjusting apparatus for driving the photographic lens which has been placed on an initial focusing position to an in-focus position, an auxiliary light emitting apparatus for emitting an auxiliary light and a switch for selecting whether the focus adjustment should be carried out with the auxiliary light emitted or the focus adjustment should be carried out without the auxiliary light. The initial focusing position of the photographic lens can be switched dependent on whether the auxiliary light is emitted or not.

    摘要翻译: 一种改进的焦点检测装置,包括摄影镜头,用于驱动已经放置在对焦位置的初始聚焦位置的摄影镜头的焦点调节装置,用于发射辅助光的辅助发光装置和用于选择是否 应用辅助光进行聚焦调整,或者在没有辅助光的情况下进行对焦调整。 照相镜头的初始对焦位置可以根据辅助光是否发射而切换。

    Photographic information setting device for a camera
    37.
    发明授权
    Photographic information setting device for a camera 失效
    照相机摄影信息设定装置

    公开(公告)号:US4890134A

    公开(公告)日:1989-12-26

    申请号:US166030

    申请日:1988-03-09

    IPC分类号: G03B7/091 G03B17/18

    CPC分类号: G03B17/18 G03B7/097

    摘要: A photographic information setting device for a camera of the present invention comprises mode switches for switching a first type exposure mode to a second type exposure mode, and vice versa. The changing rate for altering values relative to exposure in the first type mode is different from that in the second type mode. The changing rate of the second type mode is smaller than that of the first type mode. Values to be set in the second type mode contain values to be set in the first type mode. This device also comprises a microcomputer which shifts a value set under the second type mode to a value set under the first type mode when the second type mode is switched to the first type mode.

    摘要翻译: 本发明的照相机的摄影信息设定装置包括用于将第一类型曝光模式切换到第二类曝光模式的模式开关,反之亦然。 在第一类型模式中改变相对于曝光的值的变化率不同于第二类模式中的曝光值。 第二类模式的变化率小于第一类型模式的变化率。 要在第二种类型模式中设置的值包含要在第一种类型模式中设置的值。 该设备还包括微型计算机,当第二类型模式切换到第一类型模式时,将在第二类型模式下设置的值移位到在第一类型模式下设置的值。

    Camera system
    39.
    发明授权
    Camera system 失效
    相机系统

    公开(公告)号:US4855779A

    公开(公告)日:1989-08-08

    申请号:US122243

    申请日:1987-11-18

    IPC分类号: G03B7/08 G03B7/091

    CPC分类号: G03B7/091 G03B7/0807

    摘要: A camera system being comprised of a camera and an external device is disclosed. The external device is detachably mounted on the camera which memorizes a program or data necessary for executing a program therein.When the external device is mounted on the camera, they are connected electrically with each other and communicate therebetween in order to read a program or data memorized in the external device into a memory means provided in the camera. The camera is controlled according to the program designated by the external device.

    摘要翻译: 公开了一种由相机和外部设备组成的相机系统。 外部设备可拆卸地安装在照相机上,其存储用于在其中执行节目所需的程序或数据。 当外部设备安装在相机上时,它们彼此电连接并且在它们之间通信,以便将存储在外部设备中的程序或数据读取到设置在相机中的存储器装置中。 照相机根据外部设备指定的程序进行控制。