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公开(公告)号：US4816861A
公开(公告)日：1989-03-28
申请号：US131084
申请日：1987-12-08
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：US4768054A
公开(公告)日：1988-08-30
申请号：US14923
申请日：1987-02-13
CPC分类号： G02B7/34
摘要： An automatic focusing device 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： 公开了一种用于相机的自动对焦装置。 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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13.发明授权
公开(公告)号：US4808808A
公开(公告)日：1989-02-28
申请号：US5088
申请日：1987-01-20
CPC分类号： G02B7/343
摘要： A focus detecting optical system including a condenser lens disposed in a vicinity of or rearwardly of a predetermined focal plane of a photographic lens, an image forming lens unit having a pair of image forming lens sections disposed symmetrically relative to a main optical axis, a light blocking member having an opening for regulating a luminous flux coming into the image forming lens unit, a first prism for refracting the luminous flux in a direction departing from the main optical axis, a second prism for refracting the luminous flux in a direction nearing the main optical axis and a light receiving element array. An image formed on the light receiving element array and formed of the luminous flux carried through the condenser lens, the first prism, one of the image forming lens sections and the second prism and an image formed on the light receiving element array and formed of the luminous flux carried through the condenser lens, the first prism, the other image forming lens section and the second prism are placed with a sufficient distance therebetween by working of the first and second prisms. A focus detecting operation is carried out by comparing these images.
摘要翻译： 一种焦点检测光学系统，包括设置在摄影透镜的预定焦平面附近或之后的聚光透镜，成像透镜单元，具有相对于主光轴对称设置的一对成像透镜部分，光 具有用于调节进入图像形成透镜单元的光束的开口的阻挡构件，用于在离开主光轴的方向折射光通量的第一棱镜，用于沿接近主光线的方向折射光通量的第二棱镜 光轴和光接收元件阵列。 形成在光接收元件阵列上的由形成在聚光透镜，第一棱镜，图像形成透镜部分和第二棱镜中的一个的光束形成的图像和形成在光接收元件阵列上并由 通过聚光透镜携带的光束，第一棱镜，其他成像透镜部分和第二棱镜通过第一和第二棱镜的加工而放置在其间具有足够的距离。 通过比较这些图像来进行焦点检测操作。
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公开(公告)号：US5168299A
公开(公告)日：1992-12-01
申请号：US683763
申请日：1991-04-10
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：US4979045A
公开(公告)日：1990-12-18
申请号：US353813
申请日：1989-05-18
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：US4862204A
公开(公告)日：1989-08-29
申请号：US160581
申请日：1988-02-26
IPC分类号： G02B7/34
CPC分类号： G02B7/34
摘要： A focus detection device which repeatedly calculates correlations between first and second image signals representing light intensity distributions on first and second image sensor arrays by shifting one of the image signals relative to the other to find an amount of shift affording the highest correlation includes shift range restriction means for restricting the shift range for the present correlation calculation in accordance with the amount of shift found through the last correlation calculation to afford the highest correlation. The shift range restriction is inhibited when the result of the last correlation calculation was not reliable indicating an infeasible condition of the focus detection.
摘要翻译： 一种聚焦检测装置，其通过相对于另一图像信号移动图像信号之一来重复地计算表示第一和第二图像传感器阵列上的光强度分布的第一和第二图像信号之间的相关性，以找到提供最高相关性的偏移量包括偏移范围限制 用于根据通过最后一次相关计算发现的移位量来限制用于本相关计算的移位范围以提供最高相关性的装置。 当最后一次相关计算的结果不可靠指示焦点检测的不可行状态时，移位范围限制被禁止。
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17.发明授权Focus condition detecting device using weighted center or contrast evaluation 失效使用加权中心或对比度评估的对焦条件检测装置
公开(公告)号：US4851657A
公开(公告)日：1989-07-25
申请号：US251938
申请日：1988-09-28
IPC分类号： G02B7/34
CPC分类号： G02B7/34
摘要： A focus condition detecting device for a camera is disclosed. The device provides first and second image sensors for calculating correlations between images each having passed through an objective lens of the camera. A plurality of image detecting blocks are defined on the first image sensor in order to execute correlation calculations with respect to each block for detecting focus conditions. A focus condition which indicates the focus condition among those obtained from the correlation calculations with use of each block is employed as the most probable focus condition. In the present invention, correlation calculations unnecessary for finding the rearmost focus condition are omitted.
摘要翻译： 公开了一种用于照相机的聚焦条件检测装置。 该装置提供第一和第二图像传感器，用于计算通过相机的物镜的图像之间的相关性。 在第一图像传感器上定义多个图像检测块，以便执行关于每个块的相关计算以检测焦点条件。 作为最可能的对焦条件，采用表示从使用各块的相关运算得到的焦点条件的聚焦条件。 在本发明中，省略了找到最后焦点条件所需的相关运算。
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公开(公告)号：US4835562A
公开(公告)日：1989-05-30
申请号：US231075
申请日：1988-08-11
IPC分类号： G02B7/34
CPC分类号： G02B7/34
摘要： An automatic focusing device 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： 公开了一种用于相机的自动对焦装置。 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：US4831403A
公开(公告)日：1989-05-16
申请号：US51138
申请日：1987-05-15
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 object 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：US4809077A
公开(公告)日：1989-02-28
申请号：US41080
申请日：1987-04-21
IPC分类号： G02B7/34 , G02B7/28 , G02B7/36 , G03B13/36 , H04N5/232 , H04N5/235 , H04N5/335 , H04N5/341 , H04N5/372 , H04N5/378 , H04N3/14
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.
摘要翻译： 根据本发明的固态图像传感器驱动装置使得固态图像传感器响应于积分清除信号开始光电流的积分，使得电荷累积到规定水平并被传送到移位寄存器。 传送到移位寄存器的累计电荷根据传送信号被连续地读出，从而被提供给执行各种操作的微型计算机。 此时，如果从微机的负载输入中断请求，则停止提供给移位寄存器的传送信号，并且不向微型计算机提供移位寄存器的内容。 当微计算机的中断处理完成时，传送信号被再次提供给移位寄存器，从而重新开始从移位寄存器传送数据到微型计算机。
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