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公开(公告)号：US4496832A
公开(公告)日：1985-01-29
申请号：US310373
申请日：1981-10-09
摘要： A focusing state discriminating system of the invention discriminates the focusing state of an image forming optical system, based on signals F1, F2 and F3 representing image formation states of images formed at first, second and third positions of the optical system which substantially correspond to positions slightly in front of, coincident with and slightly behind the predetermined focal plane of the image forming optical system. The operation for discrimination in this system includes at least a comparison of .vertline.F1-F3.vertline. and K(F1+F2+F3), where K is a constant.
摘要翻译： 本发明的聚焦状态识别系统基于表示在光学系统的第一，第二和第三位置形成的图像的图像形成状态的信号F1，F2和F3来识别图像形成光学系统的聚焦状态，该图像形成状态基本上对应于位置 略微在前面，与图像形成光学系统的预定焦平面重合并略微落后。 该系统中的鉴别操作至少包括| F1-F3‖和K（F1 + F2 + F3）的比较，其中K是常数。
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公开(公告)号：US4475800A
公开(公告)日：1984-10-09
申请号：US577329
申请日：1984-02-08
申请人： Takao Kinoshita , Kazuya Hosoe
发明人： Takao Kinoshita , Kazuya Hosoe
摘要： A focus detecting system for detecting a focusing state is adaptable to various optical systems of different specifications. The focus detecting mode of the system changes according to the specifications of the associated optical system and the focus detection signal is normalized to compensate for changes in the brightness, contrast and pattern of the object being focussed. Additionally, the field of view may be varied in accordance with the selected optical system and the focus detection signal is normalized to compensate for changes in the brightness, contrast and pattern of the object being focussed. Additionally, the field of view may be varied in accordance with the selected optical system.
摘要翻译： 用于检测聚焦状态的聚焦检测系统适用于不同规格的各种光学系统。 系统的焦点检测模式根据相关光学系统的规格而变化，并且对焦点检测信号进行归一化以补偿被聚焦物体的亮度，对比度和图案的变化。 另外，视场可以根据所选择的光学系统而变化，并且对焦点检测信号进行归一化以补偿被聚焦的对象的亮度，对比度和图案的变化。 另外，视场可以根据所选择的光学系统而变化。
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公开(公告)号：US4428652A
公开(公告)日：1984-01-31
申请号：US313578
申请日：1981-10-21
CPC分类号： G02B7/38
摘要： A focus detecting system detects an image formation state of an image of an object by processing a time-serial output from a photoelectric transducer element through a high-pass filter. In order to suppress the outputs from the high-pass filter corresponding to the time-serial signal at the initial moment of light reception by the photoelectric transducer element or immediately thereafter, an amplifier is provided which performs the initial setting of the high-pass filter. The input and output ends of the amplifier are connected to parts of the high-pass filter, and the output impedance of the amplifier may be changed in response to a signal from an external source.
摘要翻译： 焦点检测系统通过高通滤波器处理来自光电换能器元件的时间序列输出来检测物体的图像的图像形成状态。 为了抑制由光电元件的光接收的初始时刻对应于时间序列信号的高通滤波器的输出，或者紧接在此之后，设置执行高通滤波器的初始设定的放大器 。 放大器的输入和输出端连接到高通滤波器的一部分，并且放大器的输出阻抗可以响应于来自外部源的信号而改变。
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公开(公告)号：US4415924A
公开(公告)日：1983-11-15
申请号：US245349
申请日：1981-03-19
摘要： In a photoelectric transducer device such as a solid state image pick-up device or sensor having a great number of minute photoelectric transducer elements with their image-receiving surfaces of certain shape arranged in a one-dimensional or two-dimensional manner so that brightness informations of the various individual sections of the object image are sensed by the respective photoelectric transducer elements which then produce outputs in the form of time-sequential signals, the above-described shape of the image-receiving surface area of each of the minute photoelectric transducer elements is made to be such that, as the distance from the center of the image receiving area toward the margin increases, the proportion of the area of a progressively farther concentric zone of the same width is decreased. The shape takes such a form or such characteristics as to be represented by a sampling function or other analogous functions with respect to the scanning direction of the image pick-up device.
摘要翻译： 在诸如具有大量微小光电元件的固态摄像装置或传感器的光电传感器装置中，其一维或二维方式布置有某些形状的图像接收表面，使得亮度信息 目标图像的各个单独部分的各个光电传感器元件由各自的光电转换器元件感测，其然后以时间顺序信号的形式产生输出，每个微型光电换能器元件的图像接收表面积的上述形状 使得当从图像接收区域的中心到边缘的距离增加时，相同宽度的逐渐更远的同心区域的面积的比例减小。 该形状采取这样的形式或这样的特征，以便通过采样功能或与摄像装置的扫描方向相关的其他类似功能来表示。
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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：US4459002A
公开(公告)日：1984-07-10
申请号：US313579
申请日：1981-10-21
申请人： Shinji Sakai , Nobuhiko Shinoda , Kazuya Hosoe , Takao Kinoshita
发明人： Shinji Sakai , Nobuhiko Shinoda , Kazuya Hosoe , Takao Kinoshita
CPC分类号： G02B7/38
摘要： A focus detecting system of the invention has a signal processing circuit for processing output signals from photoelectric transducer elements. The signal processing circuit has a circuit for obtaining an absolute value of the output signal and for producing power thereof. This circuit is constructed to operate in a current mode.
摘要翻译： 本发明的焦点检测系统具有用于处理来自光电换能器元件的输出信号的信号处理电路。 信号处理电路具有用于获得输出信号的绝对值并用于产生电力的电路。 该电路构造为在当前模式下工作。
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公开(公告)号：US4443086A
公开(公告)日：1984-04-17
申请号：US330438
申请日：1981-12-14
申请人： Kazuya Hosoe , Takao Kinoshita , Nobuhiko Shinoda , Shinji Sakai , Takashi Kawabata , Tadashi Ito
发明人： Kazuya Hosoe , Takao Kinoshita , Nobuhiko Shinoda , Shinji Sakai , Takashi Kawabata , Tadashi Ito
CPC分类号： G02B7/34
摘要： In the disclosed focus adjusting device, at least part of an image forming optical system and a focus adjusting mechanism is arranged within a housing attachable to and detachable from a camera body. A focus condition detector includes a photo-sensor disposed on a plane corresponding to the camera image plane, an electrical detection circuit connected to the photo-sensor, and a detecting optical system for forming an image of at least a part of the object on the surface of the photo-sensor. An aural indicator emits a sound to inform a photographer of the condition of the image formed on the surface of the predetermined focal plane as determined by the focusing condition detector.
摘要翻译： 在所公开的焦点调节装置中，图像形成光学系统和焦点调节机构的至少一部分被布置在可附接到照相机主体并且可从照相机主体拆卸的壳体内。 焦点条件检测器包括设置在与摄像机图像平面相对应的平面上的光电传感器，连接到光传感器的电检测电路，以及检测光学系统，用于在物体的至少一部分上形成图像 光传感器的表面。 听觉指示器发出声音，以通知摄影者由聚焦状态检测器确定的在预定焦平面的表面上形成的图像的状态。
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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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9.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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公开(公告)号：US4641942A
公开(公告)日：1987-02-10
申请号：US767668
申请日：1985-08-21
申请人： Shinji Sakai , Nobuhiko Shinoda , Kazuya Hosoe , Takao Kinoshita
发明人： Shinji Sakai , Nobuhiko Shinoda , Kazuya Hosoe , Takao Kinoshita
CPC分类号： G02B7/38
摘要： A focus detecting system has a signal processing circuit for processing output signals from photoelectric transducer elements and generating an output representing the focusing state. A circuit is provided to stabilize the output against abrupt changes in focusing condition.
摘要翻译： 焦点检测系统具有用于处理来自光电换能器元件的输出信号并产生表示聚焦状态的输出的信号处理电路。 提供电路以稳定输出，防止聚焦状况下的突然变化。
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