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公开(公告)号：US4967225A
公开(公告)日：1990-10-30
申请号：US368937
申请日：1989-06-19
申请人： Akira Akashi
发明人： Akira Akashi
IPC分类号： G02B7/34
CPC分类号： G02B7/34
摘要： A camera incorporating an automatic focusing apparatus capable of performing a so-called searching operation in which, when focus detecting becomes impossible, a lens is moved from a nearest end to an infinite end to detect a position of an object to be photographed and, more particularly, to improve operability of a camera having a searching operation function by preventing the searching operation after an in-focus state is obtained.
摘要翻译： 一种结合了能够进行所谓的搜索操作的自动对焦装置的相机，其中当不可能进行焦点检测时，透镜从最近端移动到无限端，以检测被拍摄对象的位置，并且更多 特别是通过在获取对焦状态之后防止搜索操作来提高具有搜索操作功能的相机的可操作性。
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42.发明授权
公开(公告)号：US4914282A
公开(公告)日：1990-04-03
申请号：US294920
申请日：1989-01-09
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： G02B7/34
CPC分类号： G02B7/34
摘要： A focus detection system for detecting a focus state of an object lens, includes an optical device for forming first and second light distributions corresponding to first and second images having light fluxes passing through the different parts of a pupila of the object lens. The positional relationship between the two light distributions varies in accordance with the focus state of the object lens. First and second sensors sense the first and second light distributions. A signal processor for processing output signals from the first and second sensors detect the focus state of the object lens in accordance with the positional relationships between the two light distributions. The signal processor processes the signals from the first and second sensors in accordance with a predetermined formula to obtain the positional relationship between the two images to determine a degree of coincidence of the two light distributions. The signal processing means provides an output signal in accordance with the degree of coincidence of the two light distributions.
摘要翻译： 用于检测物镜的焦点状态的焦点检测系统包括：用于形成与具有通过物镜的瞳孔的不同部分的光束的第一和第二图像对应的第一和第二光分布的光学装置。 两个光分布之间的位置关系根据物镜的焦点状态而变化。 第一和第二传感器检测第一和第二光分布。 用于处理来自第一和第二传感器的输出信号的信号处理器根据两个光分布之间的位置关系检测物镜的聚焦状态。 信号处理器根据预定公式处理来自第一和第二传感器的信号，以获得两个图像之间的位置关系，以确定两个光分布的一致度。 信号处理装置根据两个光分布的一致度提供输出信号。
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公开(公告)号：US4825238A
公开(公告)日：1989-04-25
申请号：US137354
申请日：1987-12-23
申请人： Akira Akashi
发明人： Akira Akashi
CPC分类号： G02B7/36
摘要： A focus detecting device in which the in-focus range, within which the result of focus detection is regarded as being in the in-focus state, is made greater than usual when the photo-taking lens is in the infinity movable limit position. The in-focus range is set to a greater value when the lens is in the infinity movable limit position and is detected as being in focus as a result of the earlier focus detection. Thus, it is made easy to effect the in-focus state when the lens is in the limit position.
摘要翻译： 其中将焦点检测结果视为处于对焦状态的对焦范围的焦点检测装置在摄像镜头处于无限远移动极限位置时比通常大。 当镜头处于无限远移动极限位置时，对焦范围被设置为更大的值，并且由于较早的焦点检测而被检测为聚焦。 因此，当透镜处于极限位置时，易于实现对焦状态。
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公开(公告)号：US4800261A
公开(公告)日：1989-01-24
申请号：US936734
申请日：1986-12-02
申请人： Akira Akashi
发明人： Akira Akashi
CPC分类号： G02B7/34
摘要： Light intensity distributions of object images whose relative positions vary with a focusing state of an objective lens are formed by a lens assembly based on light fluxes transmitted through the objective lens, and the distributions are sensed by sensing devices having a plurality of photo-sensors to produce first and second signals for the respective light intensity distributions. The first and second signals are processed by relatively displacing the first and second signals under a first relationship and by relatively displacing the first and second signals under a second relationship different from the first relationship to determine a relative positional relationship of the light intensity distributions. If there is identical or essentially identical portion is found in the processing of the first signal and the second signal, the previous processing result is utilized to shorten the processing time.
摘要翻译： 其相对位置随着物镜的聚焦状态而变化的物体图像的光强度分布由基于通过物镜透射的光束的透镜组件形成，并且通过具有多个光传感器的感测装置感测分布， 产生用于各个光强度分布的第一和第二信号。 第一和第二信号通过在第一关系下相对移位第一和第二信号以及通过在与第一关系不同的第二关系下相对移位第一和第二信号来确定光强度分布的相对位置关系来处理。 如果在第一信号和第二信号的处理中发现相同或基本相同的部分，则利用先前的处理结果来缩短处理时间。
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公开(公告)号：US4786932A
公开(公告)日：1988-11-22
申请号：US138969
申请日：1987-12-29
申请人： Akira Akashi
发明人： Akira Akashi
CPC分类号： G02B7/34
摘要： A camera having a focus state detection device, or more particularly a camera which effects searching to escape from disability of focus state detection by reciprocating a lens at least one reciprocation when the camera cannot detect the focus state, is disclosed. Once the searching has been effected, further searching is inhibited until in-focus or near in-focus state is attained in the focusing operation.
摘要翻译： 公开了一种具有聚焦状态检测装置的照相机，或者更具体地，涉及当相机不能检测到聚焦状态时通过往复透镜至少一个往复运动来实现搜索从焦点状态检测的残障中逃逸的照相机。 一旦进行了搜索，抑制了进一步的搜索，直到在聚焦操作中达到聚焦或接近对焦的状态。
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公开(公告)号：US4709138A
公开(公告)日：1987-11-24
申请号：US883436
申请日：1986-07-14
申请人： Yasuo Suda , Akira Akashi , Akira Hiramatsu
发明人： Yasuo Suda , Akira Akashi , Akira Hiramatsu
CPC分类号： G02B27/646 , G03B2217/005
摘要： An apparatus for detecting the shake of an image of an object, having first and second photosensor arrays for detecting an image of an object in two different directions, a signal processor for processing output signals from the first and second photosensor arrays and for producing a focusing control signal of an objective lens, a memory circuit for storing an output signal from the first photosensor array, and a discrimination circuit for discriminating the shake of the object in accordance with the signal stored in the memory circuit and a signal from the first photosensor array produced subsequent to this signal.
摘要翻译： 一种用于检测物体的图像抖动的装置，具有用于检测物体在两个不同方向上的图像的第一和第二光电传感器阵列，用于处理来自第一和第二光电传感器阵列的输出信号并产生聚焦的信号处理器 物镜的控制信号，用于存储来自第一光传感器阵列的输出信号的存储电路，以及用于根据存储在存储电路中的信号和来自第一光传感器阵列的信号鉴别物体的抖动的鉴别电路 在此信号之后产生。
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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
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。
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公开(公告)号：US4676623A
公开(公告)日：1987-06-30
申请号：US803514
申请日：1985-12-02
申请人： Akira Akashi , Kenji Suzuki
发明人： Akira Akashi , Kenji Suzuki
CPC分类号： G02B7/343
摘要： A solid-state imaging device including a plurality of line sensors has means for adding image signals from the line sensors arranged on the solid-state image device.
摘要翻译： 包括多个线传感器的固态成像装置具有用于从布置在固态图像装置上的线传感器添加图像信号的装置。
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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
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。
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公开(公告)号：US4617459A
公开(公告)日：1986-10-14
申请号：US558776
申请日：1983-12-06
申请人： Akira Akashi , Masanori Yamada
发明人： Akira Akashi , Masanori Yamada
CPC分类号： G02B7/36
摘要： When the disclosed automatic focusing device detects that a computed distance measurement is inaccurate, it shifts the lens a predetermined length to a new position for another measurement. A system senses when the inaccuracy arises from an overly dim scene, for which a distance cannot be properly measured in any case, and inhibits the successive shifts to avoid waste of energy.
摘要翻译： 当所公开的自动聚焦装置检测到计算出的距离测量不准确时，其将透镜预定长度移动到用于另一测量的新位置。 系统会感觉到由于过于暗淡的场景引起的不准确度，在任何情况下都不能适当地测量距离，并且抑制连续的移动以避免浪费能量。
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