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公开(公告)号：US5408291A
公开(公告)日：1995-04-18
申请号：US983324
申请日：1992-11-30
申请人： Tokuji Ishida , Masataka Hamada , Jun Hasegawa , Kenji Ishibashi , Toshio Norita , Hiroshi Ootsuka
发明人： Tokuji Ishida , Masataka Hamada , Jun Hasegawa , Kenji Ishibashi , Toshio Norita , Hiroshi Ootsuka
CPC分类号： G02B7/285
摘要： An AF camera system for automatically controlling an objective lens for focusing an object includes a focus detector for generating a defocus data DF carrying information of a defocus amount and a defocus direction based on a focus condition of an object to be focused through an objective lens detected in a detection cycle, an infocus detector for detecting an infocus condition based on the defocus data, a lens driver for driving the objective lens based on the defocus amount and defocus direction carried in the defocus data DF when the infocus detection means did not detect the infocus condition; and a control for controlling the focus adjustment based on defocus data and/or the detection of the infocus condition detected by the infocus detection means.
摘要翻译： 用于自动控制用于聚焦物体的物镜的AF相机系统包括焦点检测器，用于基于被检测物镜的待聚焦物体的聚焦条件来产生携带散焦量和散焦方向信息的散焦数据DF 在检测周期中，用于根据散焦数据检测聚焦条件的聚焦检测器，用于当聚焦检测装置未检测到散焦数据DF时基于散焦量和散焦方向驱动物镜的透镜驱动器 聚焦条件; 以及用于基于散焦数据控制焦点调整的控制和/或由焦点检测装置检测到的聚焦状态的检测。
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公开(公告)号：US5319412A
公开(公告)日：1994-06-07
申请号：US22780
申请日：1993-02-23
CPC分类号： G02B7/34
摘要： In an automatic focus control device of a camera there are provided defocus amount calculation means for calculating a defocus amount for a predetermined focus plane of a photographic lens in the camera on the basis of the electric signal generated by a light receiving means, comparing means for comparing the obtained value on the basis of the calculated defocus amount with a reference value, control means controlling driving speed of the photographic lens by the lens driving means in response to the comparison result of a comparing means, photographic condition setting means for setting the photographic condition and reference value setting means for setting said reference value in response to the set photographic condition.
摘要翻译： 在照相机的自动聚焦控制装置中，设置散焦量计算装置，用于根据由光接收装置产生的电信号计算照相机中的摄影镜头的预定聚焦平面的散焦量，比较装置， 根据计算出的散焦量与获得的参考值进行比较的控制装置，根据比较装置的比较结果，通过透镜驱动装置控制摄影透镜的驱动速度的控制装置，用于设置摄影的摄影条件设定装置 条件和参考值设置装置，用于响应于所设置的拍摄条件设置所述参考值。
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公开(公告)号：US5192966A
公开(公告)日：1993-03-09
申请号：US901797
申请日：1992-06-22
IPC分类号： G02B7/34
CPC分类号： G02B7/34
摘要： In an automatic focus control device of a camera there are provided defocus amount calculation means for calculating a defocus amount for a predetermined focus plane of a photographic lens in the camera on the basis of the electric signal generated by a light receiving means, comparing means for comparing the obtained value on the basis of the calculated defocus amount with a reference value, control means controlling driving speed of the photographic lens by the lens driving means in response to the comparison result of a comparing means, photographic condition setting means for setting the photographic condition and reference value setting means for setting said reference value in response to the set photographic condition.
摘要翻译： 在照相机的自动聚焦控制装置中，设置散焦量计算装置，用于根据由光接收装置产生的电信号计算照相机中的摄影镜头的预定聚焦平面的散焦量，比较装置， 根据计算出的散焦量与获得的参考值进行比较的控制装置，根据比较装置的比较结果，通过透镜驱动装置控制摄影透镜的驱动速度的控制装置，用于设置摄影的摄影条件设定装置 条件和参考值设置装置，用于响应于所设置的拍摄条件设置所述参考值。
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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：US4998124A
公开(公告)日：1991-03-05
申请号：US276920
申请日：1988-11-28
申请人： Tokuji Ishida , Masataka Hamada , Jun Hasegawa , Kenji Ishibashi , Toshio Norita , Hiroshi Ootsuka
发明人： Tokuji Ishida , Masataka Hamada , Jun Hasegawa , Kenji Ishibashi , Toshio Norita , Hiroshi Ootsuka
IPC分类号： G02B7/28
CPC分类号： G02B7/285
摘要： An AF autofocus camera system for automatically controlling an objective lens for focusing an object including a focus detector for generating defocus data carrying information of a defocus amount and a defocus direction based on a focus condition of an object to be focused through an objective lens detected at a detection cycle, and a focus condition memory for storing defocus data obtained in a present detection cycle, a previous detection cycle, and a cycle before the previous detection cycle. The system further includes first and second infocus detectors for detecting the infocus condition based on the defocus data itself and the average of the defocus data, respectively. First and second lens drive controllers are provided for driving and stopping the objective lens responsive to the first and second infocus detectors, respectively. The system further includes a selector for selecting the second infocus detector and the second lens controller to be operative where none of the defocus data is within an acceptable range or tolerance range so as to be considered as an infocus condition and the defocus direction of the defocus data obtained in the present and previous detection cycles show opposite directions.
摘要翻译： 一种AF自动对焦照相机系统，用于自动控制用于聚焦物体的物镜，所述物镜包括焦点检测器，用于产生携带散焦量和散焦方向信息的散焦数据，所述散焦数据基于通过在 检测周期，以及聚焦条件存储器，用于存储在当前检测周期中获得的散焦数据，先前检测周期和在先前检测周期之前的周期。 该系统还包括分别基于散焦数据本身和散焦数据的平均值来检测聚焦条件的第一和第二焦点检测器。 第一和第二透镜驱动控制器分别用于响应于第一和第二焦点检测器来驱动和停止物镜。 该系统还包括选择器，用于选择第二焦点检测器和第二透镜控制器，以在散焦数据不在可接受的范围或公差范围内的情况下工作，以便被认为是聚焦条件和散焦的散焦方向 在当前和之前的检测周期中获得的数据显示相反的方向。
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6.发明授权
公开(公告)号：US4988856A
公开(公告)日：1991-01-29
申请号：US351167
申请日：1989-05-12
申请人： Masataka Hamada , Tokuji Ishida , Hiroshi Ootsuka
发明人： Masataka Hamada , Tokuji Ishida , Hiroshi Ootsuka
CPC分类号： G02B7/36
摘要： An automatic focusing apparatus of a camera according to the present invention includes: a focus detector which detects repeatedly focus conditions of a photographic lens and outputs successively focus signals corresponding to the focus conditions; a drive unit for driving the photographic lens for focus adjustment; a predictor for predicting an in-focus detector; a control unit for controlling the drive unit to drive the photographic lens toward the in-focus point predicted by the predictor; an auxiliary light projector for projecting auxiliary light onto an object to enable detecting operation of the focus detector; and a forbidding device for forbidding the control of drive by the control unit while the auxiliary light is projected by the auxiliary light projector.
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公开(公告)号：US4905032A
公开(公告)日：1990-02-27
申请号：US267547
申请日：1988-11-04
申请人： Tokuji Ishida , Toshio Norita , Masataka Hamada , Hiroshi Ootsuka
发明人： Tokuji Ishida , Toshio Norita , Masataka Hamada , Hiroshi Ootsuka
CPC分类号： G02B7/346
摘要： An automatic focusing condition detecting device comprising an objective lens; a light receiving unit having a plurality of receiving portions, each receiving portion being adapted to receive through the objective lens light from one of a plurality of focusing areas, respectively; a focus detecting unit for detecting based on the output of each receiving portion a focusing condition of the objective lens in the respective focusing area; a unit for judging based on the output of each receiving portion whether or not it is possible for the focus detecting unit to detect a focusing condition of the objective lens in the respective focusing area; a unit for driving the objective lens; and a unit for controlling the driving unit to drive the objective lens when the judging unit judges that it is possible for the focus detecting unit to detect a focusing condition in at least one but not whole of the focusing areas, for the purpose of investigation whether or not there is another focusing area where the focus detecting unit can detect a focusing condition.
摘要翻译： 一种自动对焦条件检测装置，包括物镜; 光接收单元，具有多个接收部分，每个接收部分分别适于通过物镜从多个聚焦区域中的一个接收光; 焦点检测单元，用于基于每个接收部分的输出来检测物镜在各个聚焦区域中的聚焦状态; 用于基于每个接收部分的输出来判断焦点检测单元是否可以检测各个聚焦区域中的物镜的聚焦状态的单元; 用于驱动物镜的单元; 以及用于当判断单元判断焦点检测单元可以检测至少一个但不是整个聚焦区域的聚焦条件时，用于控制驱动单元来驱动物镜的单元，以便调查是否 或者不存在焦点检测单元可以检测聚焦条件的另一聚焦区域。
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公开(公告)号：US4816856A
公开(公告)日：1989-03-28
申请号：US32738
申请日：1987-03-30
CPC分类号： G02B7/34
摘要： In an automatic focus control device of a camera there are provided defocus amount calculation means for calculating a defocus amount for a predetermined focus plane of a photographic lens in the camera on the basis of the electric signal generated by a light receiving means, comparing means for comparing the obtained value on the basis of the calculated defocus amount with a reference value, control means controlling driving speed of the photographic lens by the lens driving means in response to the comparison result of a comparing means, photographic condition setting means for setting the photographic condition and reference value setting means for setting said reference value in response to the set photographic condition.
摘要翻译： 在照相机的自动聚焦控制装置中，设置散焦量计算装置，用于根据由光接收装置产生的电信号计算照相机中的摄影镜头的预定聚焦平面的散焦量，比较装置， 根据计算出的散焦量与获得的参考值进行比较的控制装置，根据比较装置的比较结果，通过透镜驱动装置控制摄影透镜的驱动速度的控制装置，用于设置摄影的摄影条件设定装置 条件和参考值设置装置，用于响应于所设置的拍摄条件设置所述参考值。
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公开(公告)号：US5734938A
公开(公告)日：1998-03-31
申请号：US590349
申请日：1996-01-23
申请人： Masataka Hamada , Tokuji Ishida , Hiroshi Ootsuka
发明人： Masataka Hamada , Tokuji Ishida , Hiroshi Ootsuka
CPC分类号： G02B7/36
摘要： An automatic focusing apparatus of a camera according to the present invention includes: a focus detector which detects repeatedly focus conditions of a photographic lens and outputs successively focus signals corresponding to the focus conditions; a drive unit for driving the photographic lens for focus adjustment; a predictor for predicting an in-focus point from the plurality of focus signals from the focus detector; a control unit for controlling the drive unit to drive the photographic lens toward the in-focus point predicted by the predictor; an auxiliary light projector for projecting auxiliary light onto an object to enable detecting operation of the focus detector; and a forbidding device for forbidding the control of drive by the control unit while the auxiliary light is projected by the auxiliary light projector.
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公开(公告)号：US5214464A
公开(公告)日：1993-05-25
申请号：US636608
申请日：1990-12-31
申请人： Toshihiko Karasaki , Hiroshi Ootsuka , Norio Ishikawa , Toshihiko Ishimura , Masataka Hamada , Tokuji Ishida , Masayuki Ueyama
发明人： Toshihiko Karasaki , Hiroshi Ootsuka , Norio Ishikawa , Toshihiko Ishimura , Masataka Hamada , Tokuji Ishida , Masayuki Ueyama
摘要： According to this invention, a camera system has a camera body and a first and second lenses exchangeable to the camera body. The first lens comprises a device for outputting first data which indicates the first lens belongs to a first lens type. The second lens comprises a device for outputting second data which indicates the second lens belongs to a second lens type and third data with respect to the characteristic of the second lens. The camera body comprises: a device for inputting the data from the outputting device of the first or second lens attached to the camera body, a device for discriminating the lens type based on whether the inputted data is the first or second data, a device for storing data with respect to the characteristic of the lens belonging to the first lens type, and a processing device for carrying out a process based on the third data when the discriminating device judges the attached lens belongs to the second lens type and controlling it based on the stored data in the storing device when the discriminating device judges the attached lens belongs to the first lens type. The discriminating means judges the attached lens belongs to the first lens type.
摘要翻译： 根据本发明，照相机系统具有照相机主体和可与照相机主体交换的第一和第二透镜。 第一透镜包括用于输出指示第一透镜属于第一透镜类型的第一数据的装置。 第二透镜包括用于输出指示第二透镜属于第二透镜类型的第二数据和关于第二透镜的特性的第三数据的装置。 相机主体包括：用于输入来自附接到相机主体的第一或第二透镜的输出装置的数据的装置，用于基于所输入的数据是第一还是第二数据来鉴别透镜类型的装置，用于 存储关于属于第一透镜类型的透镜的特性的数据;以及处理装置，用于当鉴别装置判断所附的透镜属于第二透镜类型时，基于第三数据执行处理，并基于 当识别装置判断所附加的透镜属于第一透镜类型时，存储装置中的存储数据。 鉴别装置判断所附的透镜属于第一透镜类型。
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