公开(公告)号：US4688920A

公开(公告)日：1987-08-25

申请号：US778306

申请日：1985-09-20

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

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

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

CPC分类号： G02B7/343

摘要： A system for detecting the focus of an imaging lens relative to an object includes re-imaging means disposed on the imaging side of the imaging lens and having pupil dividing means for dividing the pupil of the imaging lens into a plurality of areas, the re-imaging means forming a secondary object image of the object from a light beam passed through the plurality of divided areas, an optical system disposed near the predetermined imaging plane of the imaging lens and having a reflecting surface for directing a primary object image of the object to the re-imaging means, and light-receiving means on which the secondary object image by the re-imaging means is formed.

摘要翻译： 用于检测成像透镜相对于物体的焦点的系统包括设置在成像透镜的成像侧上的重新成像装置，并具有用于将成像透镜的光瞳分成多个区域的光瞳分割装置， 成像装置，从穿过所述多个分割区域的光束形成所述物体的次要物体图像;光学系统，设置在所述成像透镜的预定成像平面附近，并具有用于将所述物体的主要物体图像指向的反射表面 重新成像装置和由再成像装置形成辅助物体图像的光接收装置。

公开(公告)号：US4825239A

公开(公告)日：1989-04-25

申请号：US226557

申请日：1988-08-01

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

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

IPC分类号： G03B13/36 ,  G01C3/00 ,  G01C3/06 ,  G01C3/08 ,  G02B7/28 ,  G02B7/34 ,  G03B3/00

CPC分类号： G02B7/34

摘要： A distance detection apparatus comprising: a distance detection unit for detecting information on a distance to an object, a controller for operating the detection means a plurality of times, and for processing a plurality of information on the distance and outputting an optimum distance information; a status detector for detecting a status of the object for outputting information on the status; and a circuit for altering an information processing method of the controller, in accordance with the output of the status detection means.

摘要翻译： 一种距离检测装置，包括：距离检测单元，用于检测与物体的距离的信息，多个操作所述检测装置的控制器，用于处理关于距离的多个信息并输出最佳距离信息; 状态检测器，用于检测用于输出关于状态的信息的对象的状态; 以及根据状态检测装置的输出来改变控制器的信息处理方法的电路。

公开(公告)号：US4739157A

公开(公告)日：1988-04-19

申请号：US839951

申请日：1986-03-17

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

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

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

CPC分类号： G02B7/34

摘要： A correlation detecting method in which in order to detect the correlation between a pair of electrical signal trains which should effect a correlation operation, the operation is effected while the relative position of the signal trains is shifted and during the operation, the signal levels of at least the opposite ends of each signal train are reduced relative to the signals at a central position of the signal train, thereby mitigating the correlation error attributable to the signals near the ends of the signal trains.

摘要翻译： 一种相关检测方法，其中为了检测应实现相关操作的一对电信号序列之间的相关性，在信号列的相对位置偏移并且在操作期间，在 每个信号序列的相对端相对于信号序列的中心位置处的信号减小，从而减轻归因于信号序列末端附近的信号的相关误差。

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：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。

公开(公告)号：US4555169A

公开(公告)日：1985-11-26

申请号：US648244

申请日：1984-09-07

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

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

IPC分类号： G02B7/34 ,  G03B3/00

CPC分类号： G02B7/34

摘要： In an in-focus state detection device for a camera for forming a plurality of images based on light fluxes transmitted through different areas of a pupil of an imaging lens and detecting the state of the imaging lens based on a relative positional relationship of the images, an optical system for forming the images and a sensor for sensing the images are constructed in a unit through two opposing mirrors to allow ready mounting of the optical system and the sensor, and the positions of the optical system and the sensor are adjusted through the unit member.

摘要翻译： 在基于通过成像透镜的瞳孔的不同区域透射的光束形成多个图像的相机的对焦状态检测装置中，基于图像的相对位置关系来检测摄像透镜的状态， 用于形成图像的光学系统和用于感测图像的传感器通过两个相对的反射镜以单元构造，以允许光学系统和传感器的准备安装，并且光学系统和传感器的位置通过单元 会员。

公开(公告)号：US4792668A

公开(公告)日：1988-12-20

申请号：US936746

申请日：1986-12-02

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： G02B7/36 ,  G03B3/00

CPC分类号： G02B7/36

摘要： An apparatus for detecting a focusing state of an objective lens comprises optical means for forming light intensity distributions of object images whose relative positional relationship changes with the focusing state of the objective lens, sensing means having a plurality of sensors for sensing the light intensity distributions to produce first and second signals relating to the light intensity distributions, signal processing means for relatively displacing the first and second signals by determining correlation information and producing a signal for adjusting the focusing state of the objective lens in accordance with the correlation information, and altering means for altering a displacement range within which the first and second signals are relatively displaced.

摘要翻译： 用于检测物镜的聚焦状态的装置包括光学装置，用于形成相对位置关系随着物镜的聚焦状态而变化的物体图像的光强度分布，感测装置具有多个用于感测光强度分布的传感器 产生与光强分布有关的第一和第二信号，用于通过确定相关信息并产生用于根据相关信息调整物镜的聚焦状态的信号来相对移位第一和第二信号的信号处理装置，以及改变装置 用于改变第一和第二信号相对移位的位移范围。

公开(公告)号：US4670645A

公开(公告)日：1987-06-02

申请号：US659950

申请日：1984-10-11

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

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

IPC分类号： G02B7/28 ,  G02B7/34 ,  G02B27/40 ,  G03B3/00 ,  G01J1/20

CPC分类号： G02B7/34 ,  G02B27/40

摘要： This specification discloses a focus detecting system in which a plurality of images are formed on the basis of light beams passing through different portions of the pupil of an objective lens and the focus state of the objective lens is detected from the relative positional relation of these images and wherein filters of which the density distribution varies along the direction of arrangement of photoelectric conversion elements are disposed in front of photoelectric conversion element arrays for detecting the distributions of quantity of light of the images, thereby accomplishing shading correction.

摘要翻译： 本说明书公开了一种焦点检测系统，其中基于通过物镜的光瞳的不同部分的光束形成多个图像，并且从这些图像的相对位置关系检测物镜的聚焦状态 并且其中密度分布沿着光电转换元件的排列方向变化的滤光器设置在用于检测图像的光量分布的光电转换元件阵列的前面，从而完成阴影校正。

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。