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公开(公告)号：US4560864A
公开(公告)日：1985-12-24
申请号：US727194
申请日：1985-04-29
摘要： In the device disclosed, an image formed by an optical system is scanned by an image sensor composed of independently arranged photoelectric transducing elements to produce an image scanning signal. A detecting circuit detects the variation of the brightness between the adjacent image elements as a measure of the sharpness of the image and the focus of the optical system. The focus detection accuracy is improved by non-linear transformation of the brightness variation signal with a non-linear transformation circuit that weighs the brightness variation signal on the basis of the signal level. A signal forming circuit detects the difference between the outputs of transducing elements and adds the differences to produce a comparator signal when a predetermined relationship is reached between the sharpness indication and the addition signal. An indicator indicates that the focusing condition cannot be discerned in response to the comparison signal and a control inhibits the output of the detection circuit to the indicator prior to the addition signal.
摘要翻译： 在所公开的装置中，通过由独立设置的光电转换元件构成的图像传感器来扫描由光学系统形成的图像，以产生图像扫描信号。 检测电路检测相邻图像元件之间的亮度的变化，作为图像的清晰度和光学系统的焦点的量度。 通过基于信号电平对亮度变化信号进行称重的非线性变换电路对亮度变化信号进行非线性变换来提高焦点检测精度。 当在锐度指示和加法信号之间达到预定的关系时，信号形成电路检测转换元件的输出之间的差异，并且增加差值以产生比较器信号。 指示符表示响应比较信号不能识别聚焦条件，并且控制在加法信号之前禁止检测电路对指示符的输出。
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公开(公告)号：US4333716A
公开(公告)日：1982-06-08
申请号：US98514
申请日：1979-11-29
摘要： Disclosed is a focus detecting system in which first and second signals corresponding to image forming states at first and second positions each almost at the same distance before and behind a predetermined focal plane of an image forming optical system are obtained. A third signal corresponding to an image forming state at a third position different from the first and the second positions is also obtained. The in-focus state of the image formed by the image forming optical system is detected on the basis of a first comparison signal obtained by comparing the first and the second signals with each other, a second comparison signal obtained by comparing the first and the third signals with each other and a third comparison signal obtained by comparing the second and the third signals with each other.
摘要翻译： 公开了一种焦点检测系统，其中获得对应于在成像光学系统的预定焦平面之前和之后几乎相同距离的第一和第二位置处的图像形成状态的第一和第二信号。 还获得与不同于第一和第二位置的第三位置处的图像形成状态对应的第三信号。 基于通过将第一和第二信号彼此进行比较而获得的第一比较信号来检测由图像形成光学系统形成的图像的对焦状态，通过比较第一和第三信号获得的第二比较信号 彼此之间的信号和通过将第二和第三信号彼此进行比较而获得的第三比较信号。
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公开(公告)号：US4470676A
公开(公告)日：1984-09-11
申请号：US59635
申请日：1979-07-23
摘要： In the device disclosed, an image formed by an optical system is scanned by an image sensor composed of independently arranged photoelectric transducing elements to produce an image scanning signal. A detecting circuit detects the variation of the brightness between the adjacent image elements as a measure of the sharpness of the image and the focus of the optical system. The focus detection accuracy is improved by non-linear transformation of the brightness variation signal with a non-linear transformation circuit that weighs the brightness variation signal on the basis of the signal level.
摘要翻译： 在所公开的装置中，通过由独立设置的光电转换元件构成的图像传感器来扫描由光学系统形成的图像，以产生图像扫描信号。 检测电路检测相邻图像元件之间的亮度的变化，作为图像的清晰度和光学系统的焦点的量度。 通过基于信号电平对亮度变化信号进行称重的非线性变换电路对亮度变化信号进行非线性变换来提高焦点检测精度。
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公开(公告)号：US4301478A
公开(公告)日：1981-11-17
申请号：US097854
申请日：1979-11-27
CPC分类号： H04N5/23212
摘要： In the disclosed TV camera, a focus detecting device detects the focus of the image optical system by evaluating the image of the object whose image is to be picked up, on the basis of the picture image signal obtained at a predetermined position in the image pick up surface of the image pick up device. At least a part of the image to be evaluated is formed at a position within the scanning area of the image pick up device but outside of the effective image pick up area for TV signals. The image is evaluated on the basis of the picture image signal obtained at this position to detect the focus.
摘要翻译： 在所公开的TV摄像机中，焦点检测装置基于在图像拾取器中的预定位置处获得的图像图像信号，通过评估要拍摄的图像的图像的图像来检测图像光学系统的焦点 图像拾取装置的上表面。 要评估的图像的至少一部分形成在图像拾取装置的扫描区域内的位置处，但是在TV信号的有效图像拾取区域之外。 基于在该位置处获得的图像信号来评估图像以检测焦点。
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5.发明授权
公开(公告)号：US4329033A
公开(公告)日：1982-05-11
申请号：US121690
申请日：1980-02-15
申请人： Makoto Masunaga , Takao Kinoshita , Toshio Sakane , Tokuichi Tsunekawa , Kazuya Hosoe , Takashi Amikura , Isao Harigaya
发明人： Makoto Masunaga , Takao Kinoshita , Toshio Sakane , Tokuichi Tsunekawa , Kazuya Hosoe , Takashi Amikura , Isao Harigaya
摘要： A distance detecting device in which, with respect to an object whose distance is to be detected, the images of a first and a second field following different lines of sight and containing the object and different in range are scanned while, at the same time, continuous M quantized image element data regarding the first field image and continuous N (N>M) quantized image element data regarding the second field image are obtained and the M image element data regarding the first field image are stored in a first circulation type shift register while the first M image element data of the N image element data regarding the second field image are stored in a second circulation type shift register and the remaining N-M image element data are stored in a third shift register, and the comparison between the stored data of the first and second shift registers during one circulation of said stored data and the relative shift of n bits each of the stored data of the second and third shift registers with respect to the stored data of the first shift register are repeatedly effected to thereby detect the distance to the object, characterized in that in the circulation circuit of the first shift register, bypass means is provided for delaying one circulation of the stored data of the first shift register by n bits relative to one circulation of the stored data of the second shift register and the stored data of the first shift register are circulated through the bypass means, whereby for each one circulation of the stored data of the first shift register, the stored data of the second shift register are shifted by n bits each relative to the stored data of the first shift register.
摘要翻译： 一种距离检测装置，其中，对于要检测距离的物体，扫描不同视线并包含物体并且在不同范围内的第一场和第二场的图像，同时， 获得关于第一场图像和关于第二场图像的连续N（N> M）个量化图像元素数据的连续M量化图像元素数据，并且关于第一场图像的M个图像元素数据被存储在第一循环型移位寄存器 而关于第二场图像的N个图像元素数据的第一M个图像元素数据被存储在第二循环型移位寄存器中，并且剩余的NM图像元素数据被存储在第三移位寄存器中，并且存储的数据 在所述存储的数据的一个循环期间的第一和第二移位寄存器以及第二和第三移位寄存器的每个存储的数据的n位的相对移位 相对于第一移位寄存器的存储数据重复进行，从而检测到对象的距离，其特征在于，在第一移位寄存器的循环电路中，提供旁路装置，用于延迟所存储的数据的一个循环 第一移位寄存器相对于第二移位寄存器的存储数据的一个循环和第一移位寄存器的存储数据的n个位循环通过旁路装置循环，由此对于第一移位寄存器的存储数据的每个循环 ，第二移位寄存器的存储数据相对于第一移位寄存器的存储数据分别移位n位。
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6.发明授权
公开(公告)号：US4422741A
公开(公告)日：1983-12-27
申请号：US343987
申请日：1982-01-29
申请人： Makoto Masunaga , Takao Kinoshita , Toshio Sakane , Tokuichi Tsunekawa , Kazuya Hosoe , Takashi Amikura , Isao Harigaya
发明人： Makoto Masunaga , Takao Kinoshita , Toshio Sakane , Tokuichi Tsunekawa , Kazuya Hosoe , Takashi Amikura , Isao Harigaya
摘要： A distance detecting device in which, with respect to an object whose distance is to be detected, the images of a first and a second field following different lines of sight and containing the object and different in range are scanned while, at the same time, continuous M quantized image element data regarding the first field image and continuous N (N>M) quantized image element data regarding the second field image are obtained and the M image element data regarding the first field image are stored in a first circulation type shift register while the first M image element data of the N image element data regarding the second field image are stored in a second circulation type shift register and the remaining N-M image element data are stored in a third shift register, and the comparison between the stored data of the first and second shift registers during one circulation of said stored data and the relative shift of n bits each of the stored data of the second and third shift registers with respect to the stored data of the first shift register are repeatedly effected to thereby detect the distance to the object, characterized in that in the circulation circuit of the first shift register, bypass means is provided for delaying one circulation of the stored data of the first shift register by n bits relative to one circulation of the stored data of the second shift register and the stored data of the first shift register are circulated through the bypass means, whereby for each one circulation of the stored data of the first shift register, the stored data of the second shift register are shifted by n bits each relative to the stored data of the first shift register.
摘要翻译： 一种距离检测装置，其中，对于要检测距离的物体，扫描不同视线并包含物体并且在不同范围内的第一场和第二场的图像，同时， 获得关于关于第二场图像的第一场图像和连续M（N> M）个量化图像元素的连续M量化图像元素数据，并且关于第一场图像的M个图像元素数据被存储在第一循环型移位寄存器 而关于第二场图像的N个图像元素数据的第一M个图像元素数据被存储在第二循环型移位寄存器中，并且剩余的NM图像元素数据被存储在第三移位寄存器中，并且存储的数据 在所述存储的数据的一个循环期间的第一和第二移位寄存器以及第二和第三移位寄存器的每个存储的数据的n位的相对移位 相对于第一移位寄存器的存储数据重复进行，从而检测到对象的距离，其特征在于，在第一移位寄存器的循环电路中，提供旁路装置，用于延迟所存储的数据的一个循环 第一移位寄存器相对于第二移位寄存器的存储数据的一个循环和第一移位寄存器的存储数据的n个位循环通过旁路装置循环，由此对于第一移位寄存器的存储数据的每个循环 ，第二移位寄存器的存储数据相对于第一移位寄存器的存储数据分别移位n位。
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公开(公告)号：US4647174A
公开(公告)日：1987-03-03
申请号：US769795
申请日：1985-08-26
申请人： Tokuichi Tsunekawa , Kazuya Hosoe , Takao Kinoshita , Takashi Kawabata , Shinji Sakai , Tatsuya Taguchi
发明人： Tokuichi Tsunekawa , Kazuya Hosoe , Takao Kinoshita , Takashi Kawabata , Shinji Sakai , Tatsuya Taguchi
CPC分类号： G02B7/346
摘要： Disclosed is a method of detecting the focusing condition of an image forming optical system to an object, in which two images of the object are formed with respective light beams from the prescribed exit pupil areas lying in almost symmetry to each other with respect to the optical axis of the optical system and are sensed to obtain an equal number of picture element data for each of the images, and based on the thus-obtained picture element data, while sequential shifting for the first image is carried out from its one end to its opposite end, and a sequential shifting for the second image from its symmetric one end thereto to its opposite end, each by a predetermined number of picture elements, a correlation betweeen the first and second images in every predetermined equal number of picture elements is sought, whereby an optimum correlation is obtained, the corresponding mutual positional relationship between the above-described predetermined numbers of picture elements is detected to discriminate whether or not the above-described image forming optical system is in focus for the above-described object.
摘要翻译： 本发明公开了一种检测图像形成光学系统到物体的聚焦状态的方法，其中物体的两个图像形成有相对于光学器件彼此几乎对称的规定出射光瞳区域的各个光束 并且被感测以获得每个图像的相等数量的图像元素数据，并且基于如此获得的图像元素数据，而对于第一图像的顺序移位从其一端执行到其第 并且第二图像从其对称的一端到其相对端的顺序移位，每个由预定数量的图像元素，寻求在每个预定的相等数量的图像元素中的第一和第二图像之间的相关性， 从而获得最佳相关性，检测上述预定数量的图像元素之间的对应的相互位置关系 鉴别上述成像光学系统是否对于上述目的而言是焦点。
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公开(公告)号：US4346970A
公开(公告)日：1982-08-31
申请号：US179548
申请日：1980-08-19
申请人： Takashi Kawabata , Tokuichi Tsunekawa , Kazuya Hosoe , Takao Kinoshita , Shinji Sakai , Tatsuya Taguchi
发明人： Takashi Kawabata , Tokuichi Tsunekawa , Kazuya Hosoe , Takao Kinoshita , Shinji Sakai , Tatsuya Taguchi
摘要： Disclosed is a TTL (Through-The-Lens) type focus detecting device for use in an interchangeable lens-equipped camera, in which a plurality of lenslets are positioned at or near the prescribed focal plane of the objective lens, each of the lenslets is associated with two or more pairs of photosensitive elements. Upon attachment of an objective lens to the camera body, one of the pairs of photosensitive elements for each lenslet is automatically selected to operate on the basis of the dimensions of the used objective lens. The outputs of the selected pairs of photosensitive elements for all the lenslets are processed to detect whether or not a positional difference between two images of an object formed with light beams from the objective lens at respective virtual exit pupils lying in almost symmetry with respect to the optical axis thereof is present, whereby the detection of whether or not the objective lens is in-focus is indicated.
摘要翻译： 公开了一种TTL（透镜）型焦点检测装置，用于可更换镜头的相机，其中多个小透镜位于物镜的规定焦平面处或附近，每个小透镜是 与两对或更多对感光元件相关联。 在将物镜附着到相机主体上时，根据所使用的物镜的尺寸自动选择每个小透镜的一对感光元件。 对所有小透镜的所选择的感光元件对的输出进行处理，以检测在相应虚拟出射瞳孔处的物镜形成的来自物镜的光束的两个图像之间的位置差异是否相对于 存在其光轴，由此指示物镜是否为焦点的检测。
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9.发明授权
公开(公告)号：US4320948A
公开(公告)日：1982-03-23
申请号：US171253
申请日：1980-07-22
CPC分类号： G03B7/0807 , G03B2217/005
摘要： The present invention relates to a motion detecting device for detecting the relative motion rate or velocity between an object and an optical instrument in an exposure control system by which the exposure time, i.e. the shutter speed of the instrument is controlled in response to the relative motion rate or velocity. The motion detecting device is designed to detect the displacement ratio or speed of the position of the center of gravity of the light distribution of the object image on the imaging plane, whereby the danger for misdetection due to the periodical fluctuation of the object brightness can be profitably avoided, being possible to detect only the relative movement between the object and the instrument.
摘要翻译： 本发明涉及一种运动检测装置，用于检测曝光控制系统中的物体和光学仪器之间的相对运动速度或速度，通过该曝光控制系统，响应于相对运动来控制仪器的快门速度 速率或速度。 运动检测装置被设计成检测成像面上的物体图像的光分布的重心的位移比或速度，由此由于物体亮度的周期性波动导致的误检测的危险可以是 有益的避免，只能检测物体和仪器之间的相对运动。
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10.发明授权
公开(公告)号：US4264161A
公开(公告)日：1981-04-28
申请号：US949557
申请日：1978-10-10
CPC分类号： G03B7/0807 , G03B2217/005
摘要： The present invention relates to a motion detecting device for detecting the relative motion rate or velocity between an object and an optical instrument in an exposure control system by which the exposure time, i.e. the shutter speed of the instrument is controlled in response to the relative motion rate or velocity. The motion detecting device is designed to detect the displacement ratio or speed of the position of the center of gravity of the light distribution of the object image on the imaging plane, whereby the danger for misdetection due to the periodical fluctuation of the object brightness can be profitably avoided, being possible to detect only the relative movement between the object and the instrument.
摘要翻译： 本发明涉及一种运动检测装置，用于检测曝光控制系统中的物体和光学仪器之间的相对运动速度或速度，通过该曝光控制系统，响应于相对运动来控制仪器的快门速度 速率或速度。 运动检测装置被设计成检测成像面上的物体图像的光分布的重心的位移比或速度，由此由于物体亮度的周期性波动导致的误检测的危险可以是 有益的避免，只能检测物体和仪器之间的相对运动。
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