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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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公开(公告)号：US4411505A
公开(公告)日：1983-10-25
申请号：US358537
申请日：1982-03-16
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： G03B3/10
摘要： The invention provides a camera which uses a signal integrating and accumulating type image sensor for receiving light from a photographing optical system prior to the photographing operation and for producing an output which can be utilized for a predetermined purpose, with the integrating time of the image sensor being controlled in accordance with the output from the image sensor. According to the improvements of the present invention, the signal integrating time of the image sensor is fixed, in association with the photographing operation, at the value of that of the integrating operation just before the photographing operation.
摘要翻译： 本发明提供了一种照相机，其使用信号积分和累积型图像传感器，用于在拍摄操作之前从拍摄光学系统接收光，并且用于产生可用于预定目的的输出，图像传感器的积分时间 根据图像传感器的输出进行控制。 根据本发明的改进，图像传感器的信号积分时间与拍摄操作相关联地固定在恰好在拍摄操作之前的积分操作的值。
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13.发明授权Signal accumulating time control method and apparatus for a signal accumulating type radiation sensing device 失效信号累积型辐射检测装置的信号累积时间控制方法和装置
公开(公告)号：US4633075A
公开(公告)日：1986-12-30
申请号：US705047
申请日：1985-02-25
申请人： Shinji Sakai , Nobuhiko Shinoda , Takao Kinoshita , Kazuya Hosoe
发明人： Shinji Sakai , Nobuhiko Shinoda , Takao Kinoshita , Kazuya Hosoe
IPC分类号： H04N5/232 , H04N5/235 , H04N5/335 , H04N5/341 , H04N5/353 , H04N5/369 , H04N5/372 , H04N5/378 , G01J1/20
CPC分类号： H04N5/23212 , H04N5/2353
摘要： Disclosed is a signal accumulating time control method for a signal accumulating type radiation sensing device which produces an electrical signal corresponding to the amount of incident radiation and accumulates the same. According to the improvement of the present invention, the accumulating time is controlled by successive approximation at different intervals when there happens a situation in which the accumulating time must be changed greatly.
摘要翻译： 公开了一种用于信号累积型辐射检测装置的信号累积时间控制方法，其产生对应于入射辐射量并积累的电信号。 根据本发明的改进，当发生积累时间必须大大改变的情况时，以不同的间隔逐次逼近来控制累积时间。
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14.发明授权Signal accumulating time control method and apparatus for a signal accumulating type radiation sensing device 失效信号累积型辐射检测装置的信号累积时间控制方法和装置
公开(公告)号：US4584656A
公开(公告)日：1986-04-22
申请号：US408714
申请日：1982-08-16
申请人： Shinji Sakai , Nobuhiko Shinoda , Takao Kinoshita , Kazuya Hosoe
发明人： Shinji Sakai , Nobuhiko Shinoda , Takao Kinoshita , Kazuya Hosoe
IPC分类号： H04N5/335 , H04N5/341 , H04N5/353 , H04N5/359 , H04N5/369 , H04N5/372 , H04N5/378 , H04N3/14
CPC分类号： H04N5/3591 , H04N5/335 , H04N5/361
摘要： In a signal accumulating time control method and apparatus for a signal accumulating type radiation sensing device which produces an electrical signal corresponding to the amount of incident radiation and accumulates the same, an accumulating time controller has first and second different control modes and is adapted to change over from one of said first and second control modes to the other when the intensity of said incident radiation fluctuates a large amount.
摘要翻译： 在信号累积型放射线检测装置的信号累积时间控制方法和装置中，产生与入射辐射量相对应的电信号，并累加它，累积时间控制器具有第一和第二不同的控制模式，并适于改变 当所述入射辐射的强度波动很大时，从所述第一和第二控制模式之一转换到另一个。
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公开(公告)号：US4437743A
公开(公告)日：1984-03-20
申请号：US313599
申请日：1981-10-21
申请人： Shinji Sakai , Nobuhiko Shinoda , Takao Kinoshita , Kazuya Hosoe
发明人： Shinji Sakai , Nobuhiko Shinoda , Takao Kinoshita , Kazuya Hosoe
CPC分类号： G03B3/10
摘要： A signal processing system for processing output signals from an accumulating-type photoelectric transducer element is disclosed which has a squaring circuit and a threshold level control circuit which vary the threshold level of the output signals from the photoelectric transducer element at least at a part of a processing circuit, depending upon the ambient temperature and/or the intensity of light incident on the photoelectric transducer element, so that noise components included in the output signals from the photoelectric transducer element can be suppressed.
摘要翻译： 公开了一种用于处理来自累积型光电换能器元件的输出信号的信号处理系统，其具有平方电路和阈值电平控制电路，所述平方电路和阈值电平控制电路至少在至少一部分光电变换器元件上改变来自光电换能器元件的输出信号的阈值电平 处理电路，这取决于环境温度和/或入射到光电换能器元件上的光的强度，从而可以抑制包括在光电换能器元件的输出信号中的噪声分量。
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公开(公告)号：US4419574A
公开(公告)日：1983-12-06
申请号：US282605
申请日：1981-07-13
CPC分类号： G02B3/06 , G02B3/0043 , G02B7/346
摘要： In the disclosed focus detecting system, the focusing condition of an objective lens relative to an object is determined by a number of pairs of radiation sensitive elements arranged in a linear array, and a number of lens elements arranged in a linear array corresponding to the linear array of the pairs of radiation sensitive elements. Each lens element is disposed so that one radiation sensitive element in each pair of radiation sensitive elements is arranged to cause one radiation sensitive element in each pair of radiation sensitive elements to receive radiation from a first portion of the objective lens and to cause the other radiation sensitive element to receive radiation from a second portion of the objective lens. The plural lens elements assume the form of a plurality of cylindrical lens elements arranged in a linear array corresponding to the linear array of the pairs of radiation sensitive elements with each of the pitches between successive cylindrical lens elements varying along the longitudinal direction of the cylindrical lens element.
摘要翻译： 在所公开的焦点检测系统中，物镜相对于物体的聚焦条件由排列成线性阵列的多个辐射敏感元件决定，并且多个透镜元件排列成与线性对应的线性阵列 数组辐射敏感元件对。 每个透镜元件设置成使得每对辐射敏感元件中的一个辐射敏感元件被布置成使得每对辐射敏感元件中的一个辐射敏感元件接收来自物镜的第一部分的辐射并且引起另一辐射 以接收来自物镜的第二部分的辐射。 多个透镜元件采取多个圆柱形透镜元件的形式，该多个柱面透镜元件布置成对应于成对的辐射敏感元件的线性阵列的线性阵列，其中连续柱面透镜元件之间的每个间距在柱面透镜的纵向方向上变化 元件。
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公开(公告)号：US4314748A
公开(公告)日：1982-02-09
申请号：US151100
申请日：1980-05-19
CPC分类号： G03B13/20
摘要： The disclosed camera is focused manually with a helicoidally movable lens barrel and fine focused automatically by movement of the lens mount along the lens' optical axis. The lens mount is automatically started at a predetermined position, such as a mid position, in its movable range, and the automatic operation is disabled when the mount reaches either limit of its movable range.
摘要翻译： 所公开的相机通过旋转可移动的镜筒手动聚焦，并且通过透镜支架沿透镜的光轴的移动而自动精细聚焦。 透镜安装座在其可移动范围内的诸如中间位置的预定位置处自动启动，并且当安装件达到其可移动范围的任何一个限制时，自动操作被禁用。
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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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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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