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1.发明授权Focus detecting apparatus with improved precision in detecting phase difference 失效具有提高检测相位差精度的对焦检测装置
公开(公告)号：US5093562A
公开(公告)日：1992-03-03
申请号：US666694
申请日：1991-03-08
CPC分类号： G02B7/34
摘要： The focus detecting apparatus of the present invention is adapted to detect focusing state of a taking lens by detecting relative positional relation between first and second images formed by luminous bundles from an object which passed through first and second image re-forming lenses, including first series of photosensitive elements receiving the first image, second series of photosensitive elements receiving the second image, first calculating device related to a plurality of portions of the series of elements each having a prescribed number of elements on the first series of photosensitive elements, for calculating a representative value for each portion, a second calculating device related to a plurality of portions of the series of elements each having a prescribed number of elements on the second series of photosensitive elements, for calculating a representative value for each portion correlation calculating device for calculating correlation between representative values of the portions of the series of elements on the first series of photosensitive elements and the representative values of each of the plurality of groups provided by dividing the portions of the series of elements on the second series of photosensitive elements, specifying device for specifying a group having highest correlation out of the correlation; and detecting device for detecting relative positional relation between the portions of the series of elements on the first series of photosensitive elements and the specified groups.
摘要翻译： 本发明的焦点检测装置适于通过检测通过第一和第二图像重新形成透镜的物体的由发光束形成的第一和第二图像之间的相对位置关系来检测拍摄镜头的聚焦状态，包括第一系列 接收第一图像的感光元件，接收第二图像的第二系列感光元件，与第一系列感光元件上具有规定数量的元件的一系列元件的多个部分相关的第一计算装置，用于计算 每个部分的代表值，与第二系列感光元件上具有规定数量的元素的一系列元素的多个部分相关的第二计算装置，用于计算每个部分相关计算装置的代表值，用于计算相关性 代表价值 所述第一系列感光元件上的所述一系列元件的部分和通过将所述第二系列感光元件上的所述一系列元件的所述部分分割而提供的所述多个组中的每一个的代表值，用于指定具有 相关性最高相关; 以及用于检测第一系列感光元件和指定组之间的一系列元件的部分之间的相对位置关系的检测装置。
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公开(公告)号：US4942418A
公开(公告)日：1990-07-17
申请号：US355449
申请日：1989-05-22
IPC分类号： G02B7/34
CPC分类号： G02B7/34
摘要： An automatic focusing divice for a camera is disclosed. The automatic focusing device has sensing means for sensing light intensity distributions within narrow and wide areas of a field of view of an objective lens, respectively and can be operated in either operation mode of one-shot AF mode and continuous AF mode. When the one-shot AF mode is designated, said narrow area which is narrower than said wide area is automatically selected for focus condition detection and, when the continuous AF mode is designated, said wide area is automatically selected.
摘要翻译： 公开了一种用于照相机的自动对焦部分。 自动聚焦装置具有用于分别感测物镜的视场的窄范围和宽范围内的光强分布的感测装置，并且可以以单次AF模式和连续AF模式的任一操作模式操作。 当指定单次AF模式时，自动选择比所述广域窄的所述窄区域进行焦点状态检测，并且当指定了连续AF模式时，自动选择所述广域。
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公开(公告)号：US4716434A
公开(公告)日：1987-12-29
申请号：US945879
申请日：1986-12-23
CPC分类号： G02B7/34
摘要： A focus condition detecting device which generated first and second light intensity distribution signals representing light intensity distributions on first and second arrays arranged to receive lights having passed through different areas of the exit pupil of an objective lens is arranged so as to divide the first light intensity distribution signal into a plurality of blocks. Each of the portions of the first light intensity distribution signal belonging to the respective blocks is shifted relative to the second light intensity distribution signal by sequentially changing an amount of shift, so that correlations therebetween are calculated for finding the amount of shift providing the highest correlation. In accordance with the amount of shift found to provide the highest correlation through the correlation calculation with use of the portion of the first light intensity distribution signal belonging to one of the blocks, the shift range for the succeeding correlation calculation with use of the portion of the first light intensity distribution signal belonging to another one of the blocks is restricted to shorten the period of time required for the succeeding correlation calculation.
摘要翻译： 一种聚焦条件检测装置，其生成表示第一和第二阵列上的光强度分布的第一和第二光强分布信号，所述第一和第二阵列布置成接收通过物镜的出射光瞳的不同区域的光，以便将第一光强度 分配信号分成多个块。 属于各个块的第一光强分布信号的每个部分相对于第二光强分布信号通过顺序地改变偏移量而偏移，从而计算它们之间的相关性，以找出提供最高相关性的偏移量 。 根据通过使用属于其中一个块的第一光强分布信号的部分的相关计算提供最高相关性的移位量，用于随后的相关计算的偏移范围，使用 限于属于另一个块的第一光强分布信号以缩短后续相关计算所需的时间。
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公开(公告)号：US5068737A
公开(公告)日：1991-11-26
申请号：US656107
申请日：1991-02-13
CPC分类号： H04N5/353 , H04N5/361 , H04N5/378 , H04N5/3696
摘要： An image sensor system for sensing an image of an object includes a plurality of image sensor arrays. Each array comprises photoelectric converting elements arranged to receive the object image and accumulation cells coupled to each photoelectric converting element for accumulating charges produced from the photoelectric converting element. A buffer memory cells are coupled respectively to the accumulation cells for temporarily storing the accumulated charges shifted from the accumulation cells in response to the completion of the charge accumulation in each array. A shift register is provided to receive accumulated charges from the buffer memory cells in every one of the arrays after all the arrays complete the charge accumulation. The accumulated charges stored in the shift register are then sequentially outputted.
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公开(公告)号：US5023646A
公开(公告)日：1991-06-11
申请号：US351176
申请日：1989-05-12
申请人： Tokuji Ishida , Masataka Hamada , Kenji Ishibashi , Nobuyuki Taniguchi , Hiroshi Ootsuka , Toshio Norita , Toshihiko Karasaki
发明人： Tokuji Ishida , Masataka Hamada , Kenji Ishibashi , Nobuyuki Taniguchi , Hiroshi Ootsuka , Toshio Norita , Toshihiko Karasaki
摘要： A camera with an automatic focusing device has an objective lens mounted on a camera. An image formed by the objective lens is divided into a plurality of zones. In each zone, a brightness distribution is obtained so as to detect a rough focusing condition in each zone, thereby producing a plurality of rough focusing condition data. Based on the result of the rough focusing condition data, one zone is selected. Furthermore, a precise focusing condition is detected in the selected zone based on the light contained in the selected zone, so as produce a precise focusing condition data. Based on the precise focusing condition data obtained from the selected zone, the objective lens is driven to an infocus condition.
摘要翻译： 具有自动对焦装置的相机具有安装在相机上的物镜。 由物镜形成的图像被分成多个区域。 在每个区域中，获得亮度分布，以便检测每个区域中的粗略聚焦状态，由此产生多个粗略聚焦条件数据。 根据粗略聚焦条件数据的结果，选择一个区域。 此外，基于所选择的区域中包含的光，在所选择的区域中检测精确的聚焦条件，以产生精确的聚焦条件数据。 基于从所选区域获得的精确聚焦条件数据，物镜被驱动到聚焦条件。
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公开(公告)号：US4835615A
公开(公告)日：1989-05-30
申请号：US5413
申请日：1987-01-20
CPC分类号： H04N5/353 , H04N5/361 , H04N5/378 , H04N5/3696
摘要： An image sensor system for sensing an image of an object includes a plurality of image sensor arrays. Each array comprises photoelectric converting elements arranged to receive the object image and accumulation cells coupled to each photoelectric converting element for accumulating charges produced from the photoelectric converting element. A buffer memory cells are coupled respectively to the accumulation cells for temporarily storing the accumulated charges shifted from the accumulation cells in response to the completion of the charge accumulation in each array. A shift register is provided to receive accumulated charges from the buffer memory cells in every one of the arrays after all the arrays complete the charge accumulation. The accumulated charges stored in the shift register are then sequentially outputted.
摘要翻译： 用于感测物体的图像的图像传感器系统包括多个图像传感器阵列。 每个阵列包括布置成接收对象图像的光电转换元件和耦合到每个光电转换元件的累积单元，用于累积从光电转换元件产生的电荷。 缓冲存储器单元分别耦合到累加单元，用于响应于每个阵列中的电荷累积的完成来临时存储从累积单元移位的累积电荷。 提供移位寄存器以在所有阵列完成电荷累积之后从每个阵列中的缓冲存储器单元接收累积的电荷。 然后顺序地输出存储在移位寄存器中的累加电荷。
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7.发明授权Focus condition detecting device having correlation calculation means and means for determining the range of shifts of image signals 失效具有相关计算装置的焦点条件检测装置和用于确定图像信号的偏移范围的装置
公开(公告)号：US4734571A
公开(公告)日：1988-03-29
申请号：US924888
申请日：1986-10-30
CPC分类号： G02B7/34
摘要： There is disclosed a focus condition detecting device for a camera.The focus condition detecting device has a preliminary correlation calculation means for calculating correlations between first and second image signals with a relatively low accuracy and a principal correlation calculation means for calculating correlations between first and second image signals with a relatively high accuracy on the basis of data obtained in the preliminary correlation calculation.
摘要翻译： 公开了一种用于照相机的聚焦条件检测装置。 焦点条件检测装置具有初步相关计算装置，用于以相对较低的精度计算第一和第二图像信号之间的相关性;以及主相关计算装置，用于基于数据以相对较高的精度计算第一和第二图像信号之间的相关性 在初步相关计算中获得。
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公开(公告)号：US5218395A
公开(公告)日：1993-06-08
申请号：US587560
申请日：1990-09-21
摘要： A camera with a multi-zone focus detecting device has an objective lens mounted on a camera. An image formed by the objective lens is divided into a plurality of zones. In each zone, a focusing condition is detected based on the image formed by the objective lens so as to produce a plurality of focusing condition data. Based on the result of the focusing conditions, one zone is selected. Furthermore, a light which has passed through the objective lens is measured separately in each zone so as to produce a plurality of measured light data. Based on a focusing condition data obtained from the selected zone, the objective lens is driven to an infocus condition. When the objective lens is driven to the infocus condition, a measured light data obtained from the selected zone is used for calculating exposure data with which the exposure is controlled.
摘要翻译： 具有多区域焦点检测装置的相机具有安装在相机上的物镜。 由物镜形成的图像被分成多个区域。 在每个区域中，基于由物镜形成的图像来检测聚焦条件，以产生多个聚焦条件数据。 根据聚焦条件的结果，选择一个区域。 此外，在每个区域分别测量已经通过物镜的光，以便产生多个测量的光数据。 基于从所选择的区域获得的聚焦条件数据，物镜被驱动到聚焦条件。 当物镜被驱动到聚焦条件时，从所选择的区域获得的测量光数据被用于计算曝光被控制的曝光数据。
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公开(公告)号：US4989094A
公开(公告)日：1991-01-29
申请号：US287051
申请日：1988-12-21
IPC分类号： G02B7/34 , G02B7/28 , G02B7/36 , G03B13/36 , H04N5/232 , H04N5/235 , H04N5/335 , H04N5/341 , H04N5/372 , H04N5/378
CPC分类号： H04N5/23212 , H04N5/2351 , H04N5/2353 , H04N5/335
摘要： A solid state image sensor drive apparatus in accordance with the present invention enables a solid state image sensor to start integration of photoelectric current in response to an integration clear signal so that electric charges are accumulated to a prescribed level and transferred to a shift register. The accumulated electric charges transferred to the shift register are read out successively based on a transfer signal so that it is supplied to a microcomputer performing various operations. At this time, if a request for interruption is inputted from a load to the microcomputer, the transfer signal supplied to the shift register is stopped and the content of the shift register is not supplied to the microcomputer. When the interruption processing in the microcomputer is completed, the transfer signal is supplied again to the shift register so that transfer of data from the shift register to the microcomputer is restarted.
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公开(公告)号：US4910548A
公开(公告)日：1990-03-20
申请号：US361825
申请日：1989-06-01
摘要： A camera with a multi-zone focus detecting device has an objective lens mounted on a camera. An image formed by the objective lens is divided into a plurality of zones. In each zone, a focusing condition is detected based on the image formed by the objective lens so as to produce a plurality of focusing condition data. Based on the result of the focusing conditions, one zone is selected. Furthermore, a light which has passed through the objective lens is measured separately in each zone so as to produce a plurality of measured light data. Based on a focusing condition data obtained from the selected zone, the objective lens is driven to an infocus condition. When the objective lens is driven to the infocus condition, a measured light data obtained from the selected zone is used for calculating exposure data with which the exposure is controlled.
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