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公开(公告)号：US4969006A
公开(公告)日：1990-11-06
申请号：US386029
申请日：1989-07-25
CPC分类号： G02B7/34
摘要： There is provided an automatic focus control device for use in a camera system comprising a focus detection control means for continuously driving a motor from the time when it is judged that a focus condition of a photograph lens can not be detected until it is judged that the focus condition can be detected, and a rotation number control means for controlling the rotation speed of said motor driven by said focus detection control means in accordance with a constant data designating a relationship between the rotation number of said motor and a unit of a defocus value. Accordingly, the moving speed of said photograph lens is controlled in accordance with defocus variation during the movement of said photograph lens, resulting in that the infocus position of the object can be detected by a low contrast search without overrunning the infocus position, even though the object is positioned far from an available range of the focus detection.
摘要翻译： 提供了一种用于照相机系统中的自动对焦控制装置，包括焦点检测控制装置，用于从判断为无法检测到照相镜的焦点状态的时刻连续地驱动电动机，直到判断为 可以检测焦点条件;以及旋转数控制装置，用于根据指定所述电动机的转数与散焦值单位之间的关系的恒定数据来控制由所述焦点检测控制装置驱动的所述电动机的转速 。 因此，根据在所述照相镜的移动期间的散焦变化来控制所述照相镜的移动速度，导致可以通过低对比度搜索来检测物体的聚焦位置而不超越聚焦位置，即使 物体远离焦点检测的可用范围。
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公开(公告)号：US4924250A
公开(公告)日：1990-05-08
申请号：US374590
申请日：1989-06-28
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：US5196881A
公开(公告)日：1993-03-23
申请号：US741785
申请日：1991-08-06
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.
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公开(公告)号：US5040015A
公开(公告)日：1991-08-13
申请号：US508274
申请日：1990-04-11
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.
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公开(公告)号：US4882601A
公开(公告)日：1989-11-21
申请号：US136811
申请日：1987-12-21
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：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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公开(公告)号：US5003336A
公开(公告)日：1991-03-26
申请号：US315845
申请日：1989-02-27
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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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：US5144357A
公开(公告)日：1992-09-01
申请号：US630887
申请日：1990-12-20
申请人： Tokuji Ishida , Toshio Norita , Masataka Hamada , Hiroshi Ootsuka
发明人： Tokuji Ishida , Toshio Norita , Masataka Hamada , Hiroshi Ootsuka
IPC分类号： G02B7/34
CPC分类号： G02B7/346
摘要： An automatic focus condition detecting device comprising an objective lens; a unit for receiving light from an object through the objective lens; a focus detecting unit responsive to the output of the receiving unit for detecting a focusing condition of the objective lens; a unit responsive to the output of the receiving unit for judging whether or not it is possible for the focus detecting unit to detect a focusing condition of the objective lens; a lens position detecting unit for detecting whether or not the objective lens is positioned within a predetermined range included in the lens driving range; a unit for driving the objective lens; and a unit for controlling the driving unit to drive the objective lens when the judging judges that it is impossible for the focus detecting unit to detect a focusing condition and, moreover, the lens detecting unit detects that the objective lens is positioned within the predetermined range, for the purpose of a search a lens position 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; 用于通过物镜接收来自物体的光的单元; 焦点检测单元，响应于所述接收单元的输出，用于检测所述物镜的聚焦状态; 响应于所述接收单元的输出的单元，用于判断所述焦点检测单元是否可以检测所述物镜的聚焦状态; 透镜位置检测单元，用于检测物镜是否位于包括在透镜驱动范围内的预定范围内; 用于驱动物镜的单元; 以及当所述判断判定所述焦点检测单元不可能检测到聚焦状态时，用于控制所述驱动单元驱动所述物镜的单元，并且所述透镜检测单元检测到所述物镜位于所述预定范围内 为了搜索焦点检测单元可以检测聚焦条件的透镜位置的目的。
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公开(公告)号：US4994841A
公开(公告)日：1991-02-19
申请号：US267304
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 focus condition detecting device comprising an objective lens; a unit for receiving light from an object through the objective lens; a focus detecting unit responsive to the output of the receiving unit for detecting a focusing condition of the objective lens; a unit responsive to the output of the receiving unit for judging whether or not it is possible for the focus detecting unit to detect a focusing condition of the objective lens; a lens position detecting unit for detecting whether or not the objective lens is positioned within a predetermined range included in the lens driving range; a unit for driving the objective lens; and a unit for controlling the driving unit to drive the objective lens when the judging judges that it is impossible for the focus detecting unit to detect a focusing condition and, moreover, the lens detecting unit detects that the objective lens is positioned within the predetermined range, for the purpose of a search a lens position where the focus detecting unit can detect a focusing condition.
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