公开(公告)号：US4698492A

公开(公告)日：1987-10-06

申请号：US749383

申请日：1985-06-27

申请人： Keiji Ohtaka ,  Akira Hiramatsu ,  Yasuo Suda ,  Akira Akashi ,  Akira Ishizaki

发明人： Keiji Ohtaka ,  Akira Hiramatsu ,  Yasuo Suda ,  Akira Akashi ,  Akira Ishizaki

IPC分类号： G02B7/34 ,  G02B27/00 ,  G03B3/00 ,  G03B13/36 ,  G03B13/28 ,  G01J1/20

CPC分类号： G02B27/0025 ,  G02B7/343

摘要： A focus detection system includes an object lens for focusing an image of an object, a refocusing optical system for refocusing a plurality of component image having parallax from the image of the image, a view field mask arranged between the object lens and the refocusing optical system and having a laterally extending aperture, and a sensing device having a photo-sensor array for sensing the component images. Focus detection error is prevented by determining a sense area of the photo-sensor array in accordance with a distortion created in an aperture image by the refocusing optical system.

摘要翻译： 焦点检测系统包括用于聚焦物体的图像的物镜，用于重新聚焦具有来自图像的图像的具有视差的多个分量图像的再聚焦光学系统，布置在物镜和重聚焦光学系统之间的视场屏蔽 并且具有横向延伸的孔，以及具有用于感测组件图像的光传感器阵列的感测装置。 通过根据通过重新聚焦光学系统在孔径图像中产生的失真来确定光电传感器阵列的感测区域来防止焦点检测误差。

公开(公告)号：US4618236A

公开(公告)日：1986-10-21

申请号：US667818

申请日：1984-11-02

申请人： Akira Akashi ,  Akira Ishizaki ,  Akira Hiramatsu ,  Yasuo Suda ,  Keiji Ohtaka

发明人： Akira Akashi ,  Akira Ishizaki ,  Akira Hiramatsu ,  Yasuo Suda ,  Keiji Ohtaka

IPC分类号： G02B7/28 ,  G02B7/34 ,  G03B3/00 ,  G01J1/36

CPC分类号： G02B7/34

摘要： In an apparatus wherein on the basis of a light passing through an objective lens, a plurality of images whose relative positional relation varies in accordance with the focus state of the objective lens are formed and these images are detected by photoelectric conversion element arrays and a predetermined operation is effected by the use of a plurality of photoelectrically converted signals obtained correspondingly to the respective images to thereby detect the focus state of the objective lens, there are provided first adder means for comparing the photoelectrically converted signals of the respective images in a predetermined relation and adding the smaller signal and second adder means for comparing the photoelectrically connected signals of the respective images in a predetermined relation and adding the greater signal and focus detection is effected by utilization of the result of the addition of one of the first and second adder means in accordance with the object condition, whereby accurate focus detection is made possible for any object.

摘要翻译： 在基于通过物镜的光的基础上，形成与物镜的聚焦状态相对的位置关系变化的多个图像，并且这些图像由光电转换元件阵列和预定的 通过使用与各图像相对应地获得的多个光电转换信号来进行操作，从而检测物镜的聚焦状态，提供第一加法器装置，用于将预定关系的各图像的光电转换信号进行比较 并且添加较小的信号和第二加法器装置，用于比较预定关系中的各个图像的光电连接的信号，并且通过利用第一和第二加法器装置之一的相加结果来增加更大的信号和焦点检测 按照物体条件， 对任何对象都可以进行reby准确的焦点检测。

公开(公告)号：US4833313A

公开(公告)日：1989-05-23

申请号：US70776

申请日：1987-07-07

申请人： Akira Akashi ,  Akira Ishizaki ,  Yasuo Suda ,  Ichiro Ohnuki ,  Keiji Ohtaka ,  Takeshi Koyama

发明人： Akira Akashi ,  Akira Ishizaki ,  Yasuo Suda ,  Ichiro Ohnuki ,  Keiji Ohtaka ,  Takeshi Koyama

IPC分类号： G02B7/34 ,  G03B13/36

CPC分类号： G02B7/34

摘要： An apparatus for detecting the focus state of an optical system has optical apparatus for forming first and second light distributions of an object. The relative positional relationship of the light distributions varies in accordance with the focus state of the optical system. A light receiving device has first and second ranges, each having a plurality of picture elements. The first and second ranges respectively receive the first and second light distributions. Operation circuitry manipulates the output signals from the first and second ranges by relatively mathematically moving them to calculate a value representing the focus state of the optical system. The operation circuitry selectively executes a first operation in which the number of signals corresponding to each other is varied, and a second operation in which the number of signals corresponding to each other is kept constant.

摘要翻译： 用于检测光学系统的聚焦状态的装置具有用于形成物体的第一和第二光分布的光学装置。 光分布的相对位置关系根据光学系统的聚焦状态而变化。 光接收装置具有第一和第二范围，每个具有多个图像元素。 第一和第二范围分别接收第一和第二光分布。 操作电路通过相对数学地移动它们来操纵来自第一和第二范围的输出信号，以计算表示光学系统的聚焦状态的值。 操作电路选择性地执行其中相互对应的信号数量改变的第一操作，并且彼此对应的信号数量保持不变的第二操作。

公开(公告)号：US4812869A

公开(公告)日：1989-03-14

申请号：US70383

申请日：1987-07-07

申请人： Akira Akashi ,  Akira Ishizaki ,  Yasuo Suda ,  Ichiro Ohnuki ,  Keiji Ohtaka ,  Takeshi Koyama

发明人： Akira Akashi ,  Akira Ishizaki ,  Yasuo Suda ,  Ichiro Ohnuki ,  Keiji Ohtaka ,  Takeshi Koyama

IPC分类号： G02B7/28 ,  G02B7/34 ,  G03B13/36 ,  G03B3/00 ,  G01J1/20

CPC分类号： G02B7/34

摘要： First and second light distributions having their relative positional relation varying in conformity with the focus adjusted state of an objective optical system and based on an object are received by a plurality of picture elements, and the range of use of the picture element row can be changed when a value indicative of the focus adjusted state is calculated by the use of the signals from the picture elements.

摘要翻译： 其相对位置关系根据物镜光学系统的焦点调整状态而变化并且基于物体的第一和第二光分布被多个像素接收，并且可以改变像素行的使用范围 当通过使用来自图像元素的信号来计算指示焦点调整状态的值时。

公开(公告)号：US4792669A

公开(公告)日：1988-12-20

申请号：US947822

申请日：1986-12-30

申请人： Ichiro Ohnuki ,  Yasuo Suda ,  Akira Ishizaki ,  Akira Akashi ,  Keiji Ohtaka ,  Takeshi Koyama

发明人： Ichiro Ohnuki ,  Yasuo Suda ,  Akira Ishizaki ,  Akira Akashi ,  Keiji Ohtaka ,  Takeshi Koyama

IPC分类号： G02B7/34 ,  G01J1/20

CPC分类号： G02B7/346

摘要： A focus detecting device which is provided with a field lens disposed on the predetermined imaging plane of an objective lens and a plurality of imaging lenses disposed rearwardly of the field lens and in which the images of the imaging lenses are sensed to thereby determine the focus adjusted state of the objective lens. A unit body integrally constitutes the units such as the field lens and the imaging lenses and has a surface for movably supporting the field lens. The unit body also has adjusting device for rotating the imaging lenses relative to the optical axis.

摘要翻译： 一种焦点检测装置，其设置有设置在物镜的预定成像平面上的场透镜和设置在场透镜后方的多个成像透镜，其中检测成像透镜的图像，从而确定调焦的焦点 物镜状态。 单元体一体地构成诸如场透镜和成像透镜的单元，并且具有用于可移动地支撑场透镜的表面。 单元体还具有用于使成像透镜相对于光轴旋转的调节装置。

公开(公告)号：US4777506A

公开(公告)日：1988-10-11

申请号：US77998

申请日：1987-07-27

申请人： Akira Hiramatsu ,  Akira Ishizaki ,  Keiji Ohtaka ,  Akira Akashi ,  Yasuo Suda

发明人： Akira Hiramatsu ,  Akira Ishizaki ,  Keiji Ohtaka ,  Akira Akashi ,  Yasuo Suda

IPC分类号： G02B7/36 ,  G03B7/099 ,  G03B3/00

CPC分类号： G02B7/36 ,  G03B7/09972

摘要： A camera having an assembling adjusting device comprises a casing for a camera body, a photo-sensor disposed in the casing to receive an object image, a relay optical system for relaying a light beam from the object, a holder arranged in the casing to hold the relay optical system, a photo-sensor array for producing a focus detection signal in response to a focusing light from the relay optical system, a package for accommodating the photo-sensor array, a coupler for coupling the package to the holder, and compensation means for adjusting an attitude of the package to the holder to compensate for an inclination of the photo-sensor array plane to the focusing light.

摘要翻译： 具有装配调整装置的相机具有照相机主体的壳体，设置在壳体内的光电传感器，用于接收被摄体图像;中继光学系统，用于中继来自物体的光束;保持器，其设置在壳体内以保持 中继光学系统，用于响应于来自中继光学系统的聚焦光产生焦点检测信号的光电传感器阵列，用于容纳光感测器阵列的封装，用于将封装耦合到保持器的耦合器，以及补偿 用于将所述包装件的姿态调节到所述保持器以补偿所述光电传感器阵列平面与所​​述聚焦光的倾斜的装置。

公开(公告)号：US4716282A

公开(公告)日：1987-12-29

申请号：US764002

申请日：1985-08-09

申请人： Akira Akashi ,  Hiroshi Ohmura ,  Akira Ishizaki ,  Keiji Ohtaka ,  Yasuo Suda

发明人： Akira Akashi ,  Hiroshi Ohmura ,  Akira Ishizaki ,  Keiji Ohtaka ,  Yasuo Suda

IPC分类号： G03B13/36 ,  G02B7/28 ,  G02B7/34 ,  G03B3/00 ,  G01N1/20

CPC分类号： G02B7/34

摘要： A method and apparatus for detecting the focus state of an object image pattern in accordance with a plurality of photo-electrically converted output signals, including a first mode in which the plurality of photo-electrically converted output signals are sampled at different times and statistically processed for each output, wherein the focus state is detected in accordance with the statistically processed outputs, and a second mode for detecting the focus state without the statistical processing.

摘要翻译： 一种用于根据多个光电转换输出信号检测对象图像图案的焦点状态的方法和装置，包括第一模式，其中多个光电转换输出信号在不同时间被采样并且被统计处理 对于每个输出，其中根据统计处理的输出检测聚焦状态，以及用于在不进行统计处理的情况下检测聚焦状态的第二模式。

公开(公告)号：US4634255A

公开(公告)日：1987-01-06

申请号：US741880

申请日：1985-06-06

申请人： Yasuo Suda ,  Akira Ishizaki ,  Keiji Ohtaka ,  Akira Akashi ,  Akira Hiramatsu

发明人： Yasuo Suda ,  Akira Ishizaki ,  Keiji Ohtaka ,  Akira Akashi ,  Akira Hiramatsu

IPC分类号： G03B13/36 ,  G02B7/34 ,  G03B3/00 ,  G02B5/22

CPC分类号： G02B7/343

摘要： A focus detection apparatus has a field lens on or in a vicinity of an anticipated focal plane of an imaging lens and a refocusing optical system arranged behind the field lens to focus light beams transmitted through different areas in a pupil of the imaging lens onto a photo-sensor array to form a secondary image thereon, and detects a focus in accordance with an output signal of the photo-sensor array. A filter which blocks an infrared ray and transmits a visible ray is arranged adjacent to the field lens to prevent degradation of a filtering characteristic which depends on an inclination of a main light impinging to the filter.

摘要翻译： 焦点检测装置在成像透镜的预期焦平面附近或附近设置场透镜，并且配置在场透镜之后的重聚焦光学系统，以将透过成像透镜的光瞳中的不同区域的光束聚焦到照片上 传感器阵列以在其上形成二次图像，并且根据光电传感器阵列的输出信号检测聚焦。 阻挡红外线并透射可见光的滤光器被布置成与场透镜相邻，以防止取决于照射到滤光器的主光的倾斜度的滤光特性的劣化。

公开(公告)号：US4859842A

公开(公告)日：1989-08-22

申请号：US313343

申请日：1989-02-21

申请人： Yasuo Suda ,  Ichiro Ohnuki ,  Akira Akashi ,  Akira Ishizaki ,  Keiji Ohtaka ,  Takeshi Koyama

发明人： Yasuo Suda ,  Ichiro Ohnuki ,  Akira Akashi ,  Akira Ishizaki ,  Keiji Ohtaka ,  Takeshi Koyama

IPC分类号： G02B7/34

CPC分类号： G02B7/346

摘要： A focus detection apparatus includes:a first optical device for forming light distributions, associated with an object image, whose relative positional relationship chnages along a first direction in accordance with a focusing state of the objective lens;a second optical device for forming light distributions, associated with the object image, whose relative positional relationship changes along a second direction in accordance with the focusing state of the objective lens;a first sensing unit, having a plurality of photosensors, for forming an electrical signal associated with the focusing state of the objective lens in order to sense the light distributions formed by the first optical device; anda second sensing unit, having a plurality of photosensors, for forming an electrical signal associated with the focusing state of the objective lens in order to sense the light distribution formed by the second optical device.

摘要翻译： 焦点检测装置包括：第一光学装置，用于形成与物体图像相关联的光分布，其相对位置关系根据物镜的聚焦状态沿着第一方向检测; 用于形成与所述物体图像相关联的光分布的第二光学装置，其相对位置关系根据所述物镜的聚焦状态沿第二方向变化; 具有多个光电传感器的第一感测单元，用于形成与所述物镜的聚焦状态相关联的电信号，以便感测由所述第一光学装置形成的光分布; 以及具有多个光电传感器的第二感测单元，用于形成与物镜的聚焦状态相关联的电信号，以便感测由第二光学装置形成的光分布。

公开(公告)号：US4800410A

公开(公告)日：1989-01-24

申请号：US70382

申请日：1987-07-07

申请人： Akira Akashi ,  Akira Ishizaki ,  Yasuo Suda ,  Ichiro Ohnuki ,  Keiji Ohtaka ,  Takeshi Koyama

发明人： Akira Akashi ,  Akira Ishizaki ,  Yasuo Suda ,  Ichiro Ohnuki ,  Keiji Ohtaka ,  Takeshi Koyama

IPC分类号： G02B7/34 ,  G03B13/36 ,  G03B3/00 ,  G01J1/20

CPC分类号： G02B7/34

摘要： A focus detecting apparatus in which light distributions having their relative positional relation varying in conformity with the focus adjusted state of an objective optical system and based on an object are received by a light-receiving device having a plurality of picture elements and the output signal of the light-receiving device is operated in two different processes, and an evaluated values dependent on the contrast is operated in each of the processes and the evaluated values are compared with each other, and the result calculated in the process of better contrast is adopted as a value indicative of the focus adjusted state of the objective optical system.

摘要翻译： 一种聚焦检测装置，其具有根据物镜光学系统的焦点调整状态而变化的并且基于物体的相对位置关系的光分布由具有多个像素的光接收装置接收，并且其输出信号 光接收装置在两个不同的处理中操作，并且在每个处理中操作依赖于对比度的评估值，并且将评估值相互比较，并且在较好对比度的过程中计算的结果被采用为 指示物镜光学系统的焦点调整状态的值。