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    Focus detecting device switching between passive and active detection
    3.
    发明授权
    Focus detecting device switching between passive and active detection 失效
    被动和主动检测之间的焦点检测装置切换

    公开(公告)号：US4992817A

    公开(公告)日：1991-02-12

    申请号：US387953

    申请日：1989-08-01

    申请人： Keisuke Aoyama ,  Kenji Suzuki ,  Akira Ishizaki ,  Yasuo Suda ,  Keiji Ohtaka

    发明人： Keisuke Aoyama ,  Kenji Suzuki ,  Akira Ishizaki ,  Yasuo Suda ,  Keiji Ohtaka

    IPC分类号： G02B7/28

    CPC分类号： G02B7/285

    摘要： A focus detecting device switchable between an active and a passive mode has a passive mode in which light from an object is accumulated in a light accumulation type receiving portion without light from a light source being projected onto the object, and an active mode in which light from a light source is projected onto the object. The light accumulated in the accumulation type receiving portion is used to effect focus detection. An accumulating control circuit is provided for controlling the accumulation operation performed by the light receiving portion. A processing circuit is provided for performing the focus detection calculations on the basis of the accumulated output of the light receiving portion as controlled by the control circuit. A change-over circuit is provided for automatically changing between the passive and active modes on the basis of the accumulation state during the accumulating operation before the control of the accumulation operation by the control circuit is terminated.

    摘要翻译： 可在有源和无源模式之间切换的焦点检测装置具有被动模式，其中来自物体的光聚集在聚光型接收部分中，而没有来自光源的光被投影到物体上，而活动模式，其中光 从光源投射到物体上。 累积在积聚型接收部分中的光用于实现焦点检测。 提供一个累积控制电路，用于控制由光接收部分执行的累积操作。 提供了一种处理电路，用于基于由控制电路控制的光接收部分的累积输出来执行焦点检测计算。 提供转换电路，用于在控制电路的累加操作的控制终止之前，根据积累操作期间的累积状态，在无源和有源模式之间自动切换。

    Focus detecting apparatus having a plurality of focus detecting areas
    4.
    发明授权
    Focus detecting apparatus having a plurality of focus detecting areas 失效
    具有多个焦点检测区域的聚焦检测装置

    公开(公告)号：US5005041A

    公开(公告)日：1991-04-02

    申请号：US266804

    申请日：1988-11-03

    申请人： Yasuo Suda ,  Keiji Ohtaka ,  Kenji Suzuki ,  Akira Ishizaki ,  Keisuke Aoyama

    发明人： Yasuo Suda ,  Keiji Ohtaka ,  Kenji Suzuki ,  Akira Ishizaki ,  Keisuke Aoyama

    IPC分类号： G02B7/34

    CPC分类号： G02B7/346

    摘要： A focus detecting apparatus is provided with an optical assembly having a plurality of components disposed near the predetermined imaging plane of an objective lens and performing the actions of different field lenses, a re-imaging lens unit for receiving a light beam from the optical assembly and forming light distributions whose relative position changes in conformity with the focus adjusted state of the objective lens, and a photoelectric converting device having a plurality of sensor arrangements for receiving the light distributions and converting the light distributions into electrical signals. Predetermined one of the sensor arrangements are adapted to receive the light beam from predetermined ones of the portions of the optical assembly.

    摘要翻译： 焦点检测装置设置有具有设置在物镜的预定成像平面附近并执行不同场透镜的动作的多个部件的光学组件，用于接收来自光学组件的光束的再成像透镜单元， 形成其相对位置根据物镜的焦点调整状态变化的光分布，以及具有多个用于接收光分布并将光分布转换为电信号的多个传感器装置的光电转换装置。 传感器装置中的预定的一个适于从光学组件的预定部分接收光束。

    Image pickup apparatus for controlling accumulation time in photoelectric elements
    5.
    发明授权
    Image pickup apparatus for controlling accumulation time in photoelectric elements 失效
    用于控制光电元件中的累积时间的摄像装置

    公开(公告)号：US5182658A

    公开(公告)日：1993-01-26

    申请号：US758303

    申请日：1991-08-28

    申请人： Akira Ishizaki ,  Kenji Suzuki ,  Keiji Ohtaka ,  Yasuo Suda

    发明人： Akira Ishizaki ,  Kenji Suzuki ,  Keiji Ohtaka ,  Yasuo Suda

    IPC分类号： G02B7/36 ,  H04N5/235

    CPC分类号： G02B7/36 ,  H04N5/2352 ,  H04N5/2353

    摘要： There is provided an image pickup apparatus having a plurality of photoelectric converting elements which can accumulate the photoelectrically converted charges. This apparatus comprises: detecting circuiting for detecting whether the maximum value of outputs of the photoelectric converting elements has reaced a level near the saturation level thereof or not; time circuiting for timing a predetermined time from the start of the accumulation of the photoelectric converting elements; amplifying circuiting for amplifying outputs of the photoelectric converting elements; accumulation control circuiting for finishing the accumulating operation on the basis of either one of the facts that the detecting circuiting has detected that the maximum value had reached the saturation level, that the timer circuiting has timed the elapse of a predetermined time, and that the signal indicating that the output level of the photoelectric converting elements had reached the predetermined level has been input; and a variable gain circuit to determine an amplification factor of the amplifying circuiting in accordance with the output level of the photoelectric converting elements.

    摘要翻译： 提供一种具有多个可以累积光电转换电荷的光电转换元件的图像拾取装置。 该装置包括：检测电路，用于检测光电转换元件的输出的最大值是否已经达到接近其饱和电平的电平; 时间电路，用于从光电转换元件的累积开始定时预定时间; 用于放大光电转换元件的输出的放大电路; 基于检测电路已经检测到最大值达到饱和电平的事实之一，定时器电路已经使经过了预定时间的时间的任一事实，完成累加操作的累加控制电路，以及信号 表示已经输入光电转换元件的输出电平达到预定值; 以及可变增益电路，以根据光电转换元件的输出电平确定放大电路的放大系数。

    Focus detection device having a plurality of means for forming light patterns provided at different distances from the optical axis
    6.
    发明授权
    Focus detection device having a plurality of means for forming light patterns provided at different distances from the optical axis 失效
    焦点检测装置具有多个用于形成设置在与光轴不同的距离处的光图案的装置

    公开(公告)号：US5109154A

    公开(公告)日：1992-04-28

    申请号：US690332

    申请日：1991-04-26

    申请人： Masaki Higashihara ,  Keiji Ohtaka ,  Kenji Suzuki ,  Takeshi Koyama ,  Yasuo Suda

    发明人： Masaki Higashihara ,  Keiji Ohtaka ,  Kenji Suzuki ,  Takeshi Koyama ,  Yasuo Suda

    IPC分类号： G03B13/36 ,  G02B7/34

    CPC分类号： G02B7/346

    摘要： A focusing detecting device is disclosed having apparatus for forming object light patterns whose relative position changes in conformity with a focus state of an objective lens. Light flux passes through different areas of an exit pupil of the objective lens, and circuitry receives and photoelectrically converts the light patterns, and detects the focus state of the objective lens on the basis of the photoelectrically converted signal. The focusing apparatus accroding to the present invention a plurality of sets of structures for forming light patterns and means for photoelectrically converting the light patterns which are provided at different distances from the position of the optic axis of the objective lens. Also disclosed are means for making (a) the shapes of the areas of the exit pupil through which the light flux is passed to form the light patterns, or (b) intervals between the centers of gravity of said areas, or (c) both, different between a position in the vicinity of the optic axis of the objective lens, and a position distant therefrom.

    摘要翻译： 公开了一种聚焦检测装置，其具有用于形成相对位置根据物镜的焦点状态变化的物体光图案的装置。 光通量通过物镜的出射光瞳的不同区域，并且电路接收并光电转换光图案，并且基于光电转换信号检测物镜的聚焦状态。 根据本发明的聚焦装置用于形成光图案的多组结构和用于光电转换设置在与物镜的光轴的位置不同的距离处的光图案的装置。 还公开了用于制造（a）通过光束通过的出射光瞳的区域的形状以形成光图案的装置，或（b）所述区域的重心之间的间隔，或（c）两者 在物镜的光轴附近的位置和远离物镜的位置之间不同。

    Information display apparatus for camera
    7.
    发明授权
    Information display apparatus for camera 失效
    相机信息显示装置

    公开(公告)号：US5053803A

    公开(公告)日：1991-10-01

    申请号：US480671

    申请日：1990-02-15

    申请人： Yasuo Suda ,  Kenji Ito ,  Keiji Ohtaka ,  Kenji Suzuki

    发明人： Yasuo Suda ,  Kenji Ito ,  Keiji Ohtaka ,  Kenji Suzuki

    IPC分类号： G03B17/20

    CPC分类号： G03B17/20

    摘要： A camera body includes a movable main mirror for reflecting a light beam emerging from an objective lens, an optical element arranged along a reflection optical path of the movable main mirror and near a predetermined imaging plane of the objective lens, and having a plurality of micro refracting elements forming a display character, an eyepiece, a prism for deflecting the reflection optical path toward the eyepiece, and an illumination source, arranged in front of the prism, for causing the movable main mirror to reflect an illumination light beam to illuminate the display character.

    摘要翻译： 相机体包括用于反射从物镜出射的光束的可移动主镜，沿着可移动主镜的反射光路布置并且靠近物镜的预定成像平面的光学元件，并且具有多个微型 形成显示字符的折射元件，目镜，用于使反射光路朝向目镜偏转的棱镜，以及布置在棱镜前方的用于使可动主镜反射照明光束以照亮显示器的照明源 字符。

    Focus detecting apparatus provided with a plurality of detecting fields
    8.
    发明授权
    Focus detecting apparatus provided with a plurality of detecting fields 失效
    具有多个检测场的聚焦检测装置

    公开(公告)号：US4954701A

    公开(公告)日：1990-09-04

    申请号：US281781

    申请日：1988-12-09

    申请人： Kenji Suzuki ,  Keiji Ohtaka ,  Yasuo Suda

    发明人： Kenji Suzuki ,  Keiji Ohtaka ,  Yasuo Suda

    IPC分类号： G02B7/28 ,  G02B7/34 ,  G03B13/36

    CPC分类号： G02B7/346

    摘要： An apparatus for detecting the focus-adjusted state of an objective lens comprises a plurality of juxtaposed units each having a lens assembly for receiving light fluxes passed through different areas of the pupil of the objective lens and forming light intensity distributions whose relative position varies in conformity with the focus-adjusted state of the objective lens, and a plurality of photoelectric sensor arrays arranged in a direction orthogonal to the direction in which the areas are arranged for receiving the light intensity distributions and forming a signal indicative of the focus-adjusted state of the objective lens on the basis of the relative position of the light intensity distributions.

    摘要翻译： 用于检测物镜的焦点调整状态的装置包括多个并置单元，每个单元具有透镜组件，用于接收通过物镜的光瞳的不同区域的光束，并形成相对位置变化的光强度分布 具有物镜的焦点调整状态，以及多个光电传感器阵列，其布置在与布置该区域的方向正交的方向上，用于接收光强度分布，并形成指示焦点调整状态的信号 基于光强度分布的相对位置的物镜。

    Focus detecting device
    10.
    发明授权
    Focus detecting device 失效
    对焦检测装置

    公开(公告)号：US4980716A

    公开(公告)日：1990-12-25

    申请号：US343665

    申请日：1989-04-27

    申请人： Kenji Suzuki ,  Akira Ishizaki ,  Akira Akashi ,  Keisuke Aoyama ,  Terutake Kadohara

    发明人： Kenji Suzuki ,  Akira Ishizaki ,  Akira Akashi ,  Keisuke Aoyama ,  Terutake Kadohara

    IPC分类号： G02B7/34

    CPC分类号： G02B7/34

    摘要： A focus detecting device of the type in which the amount of focus adjustment is found from the amount of image deviation between object images formed on first and second sensor arrays. The magnitude of the regularity of the image pattern or the magnitude of the brightness/darkness deviation rate or the shape similarity is discriminated and light projection means is operated when the regularity is great or when the brightness/darkness deviation rate or the shape similarity is small.

    摘要翻译： 从形成在第一传感器阵列和第二传感器阵列上的对象图像之间的图像偏离量的焦点检测装置的焦点检测装置。 鉴别图像图案的规则性的大小或亮度/黑暗偏差率的大小或形状相似度的大小，并且当规则性大时或者当亮度/黑暗偏差率或形状相似度小时操作光投射装置 。