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公开(公告)号：US5721976A
公开(公告)日：1998-02-24
申请号：US649229
申请日：1996-05-17
申请人： Noboru Suzuki , Shigeo Toji , Masahiro Kawasaki
发明人： Noboru Suzuki , Shigeo Toji , Masahiro Kawasaki
摘要： A lens focusing system for a camera. The camera includes a focusing lens that is movable between a first terminus point and a second terminus point. An amount required to move the focusing lens to obtain an in-focus condition is determined, which is used to drive the focusing lens to position the focusing lens at the in-focus condition. A plurality of drive signals are generated in response to the driving of the focusing lens, which are monitored. A monitored position value is established that is based upon the plurality of drive signals monitored by the monitoring means, and the monitored position value is compared with a predetermined position value corresponding to one of the first terminus point and the second terminus point after the lens has been moved by the amount determined to be required to move the focusing lens to obtain the in-focus condition. The focusing lens is then driven in a direction until the focusing lens is prevented from moving when the monitored position value corresponds to a position which is out of a range between the first terminus point and the second terminus point. When the focusing lens has been moved to one of the first terminus point and the second terminus point, the monitored position value is replaced with the predetermined position value.
摘要翻译： 镜头对焦系统。 相机包括可在第一终点和第二终点之间移动的聚焦透镜。 确定移动聚焦透镜以获得对焦条件所需的量，其用于驱动聚焦透镜以将聚焦透镜定位在对焦状态。 响应被监测的聚焦透镜的驱动而产生多个驱动信号。 建立基于由监视装置监视的多个驱动信号的监视位置值，并且将监视的位置值与对应于镜头具有的第一终点和第二终点之一的预定位置值进行比较 被移动了确定为移动聚焦透镜以获得对焦条件所需的量。 然后，当监视的位置值对应于在第一终点和第二终点之间的范围之外的位置时，聚焦透镜被沿着一个方向被驱动，直到聚焦透镜被阻止移动。 当聚焦透镜已经移动到第一终点和第二终点之一时，监视的位置值被替换为预定位置值。
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公开(公告)号：US5432584A
公开(公告)日：1995-07-11
申请号：US956581
申请日：1992-10-05
申请人： Noboru Suzuki , Shigeo Toji , Masahiro Kawasaki
发明人： Noboru Suzuki , Shigeo Toji , Masahiro Kawasaki
摘要： A lens accommodation device for a camera employing a lens unit that is interchangeably mounted to a camera body. The lens unit provides data to the camera body as to whether the photographic lens thereof is accommodatable. If the lens is accommodatable, the photographic lens of the lens unit is driven in a direction in which the photographic lens is accommodated when a predetermined condition occurs.
摘要翻译： 一种用于摄像机的镜头容纳装置，其采用可互换地安装到照相机主体的透镜单元。 透镜单元向照相机主体提供关于其摄影镜头是否可容纳的数据。 如果透镜可容纳，则当发生预定条件时，透镜单元的摄影透镜在摄影镜头被容纳的方向上被驱动。
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公开(公告)号：US5283607A
公开(公告)日：1994-02-01
申请号：US881785
申请日：1992-05-11
申请人： Noboru Suzuki , Shigeo Toji , Masahiro Kawasaki
发明人： Noboru Suzuki , Shigeo Toji , Masahiro Kawasaki
摘要： An image magnification control device for a camera. Control focal length required to maintain an image magnification constant is computed based upon defocus information detected by using a light having passed through a photographic lens. In case focal length of the photographic lens comes out of a range wherein the set image magnification can be obtained, various operations such as shutter-release lock operation are executed depending upon designs.
摘要翻译： 用于照相机的图像放大控制装置。 基于通过使用通过摄影镜头的光检测到的散焦信息来计算保持图像倍率常数所需的控制焦距。 在摄影镜头的焦距超出可以获得设定图像倍率的范围的情况下，根据设计执行诸如快门释放锁定操作的各种操作。
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公开(公告)号：US5740475A
公开(公告)日：1998-04-14
申请号：US649291
申请日：1996-05-17
申请人： Noboru Suzuki , Shigeo Toji , Masahiro Kawasaki
发明人： Noboru Suzuki , Shigeo Toji , Masahiro Kawasaki
摘要： An image magnification control device for a camera having a photographic lens. A defocus amount "dx" of an object is detected by analyzing a light that passed through the photographic lens. A control focal length "f1" required to maintain an image magnification is calculated that is based upon the detected defocus amount "dx". Thereafter, it is determined whether the control focal length "f1" falls within a range between a tele terminus focal length "ft" of the photographic lens and a wide terminus focal length "fw" of the photographic lens. A first controller controls a focal length of the photographic lens so as to meet the control focal length "f1" when it is determined that the control focal length falls within the range, while a second controller controls the focal length of the photographic lens so as to meet one of the tele terminus focal length "ft" and the wide terminus focal length "fw" when it is determined that the control focal length "f1" goes beyond the range.
摘要翻译： 一种用于具有摄影镜头的相机的图像放大控制装置。 通过分析通过摄影镜头的光来检测物体的散焦量“dx”。 计算基于检测到的散焦量“dx”来维持图像倍率所需的控制焦距“f1”。 此后，确定控制焦距“f1”是否在摄影镜头的远端终焦焦距“ft”与摄影镜头的宽终点焦距“fw”之间的范围内。 当确定控制焦距在该范围内时，第一控制器控制摄影镜头的焦距以满足控制焦距“f1”，而第二控制器控制摄影镜头的焦距，以便 当确定控制焦距“f1”超出该范围时，满足远程终端焦距“ft”和宽终端焦距“fw”之一。
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公开(公告)号：US5541702A
公开(公告)日：1996-07-30
申请号：US373369
申请日：1995-01-17
申请人： Noboru Suzuki , Shigeo Toji , Masahiro Kawasaki
发明人： Noboru Suzuki , Shigeo Toji , Masahiro Kawasaki
摘要： An image magnification control device for a camera. Control focal length required to maintain an image magnification constant is computed based upon defocus information detected by analyzing a light that passes through a photographic lens. In case a focal length of the photographic lens moves out of a range wherein the set image magnification can be obtained, various options, such as a shutter-release lock operation, can be executed depending upon the chosen design of the camera.
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公开(公告)号：US5159377A
公开(公告)日：1992-10-27
申请号：US652038
申请日：1991-02-04
申请人： Noboru Suzuki , Shigeo Toji , Masahiro Kawasaki
发明人： Noboru Suzuki , Shigeo Toji , Masahiro Kawasaki
摘要： An image magnification control device for a camera. Control focal length required to maintain an image magnification constant is computed based upon defocus information detected by analyzing a light that passes through a photographic lens. In case a focal length of the photographic lens moves out of a range wherein the set image magnification can be obtained, various options, such as a shutter-release lock operation, can be executed depending upon the chosen design of the camera.
摘要翻译： 用于照相机的图像放大控制装置。 基于通过分析通过摄影镜头的光检测到的散焦信息来计算保持图像放大常数所需的控制焦距。 在摄影镜头的焦距移动到可以获得设定图像放大率的范围之外的情况下，可以根据所选择的照相机的设计来执行诸如快门释放锁定操作的各种选项。
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公开(公告)号：US5093680A
公开(公告)日：1992-03-03
申请号：US410880
申请日：1989-09-22
申请人： Noboru Suzuki , Shigeo Toji , Masahiro Kawasaki
发明人： Noboru Suzuki , Shigeo Toji , Masahiro Kawasaki
摘要： An image magnification control device for a camera. Control focal length required to maintain an image magnification constant is computed based upon defocus information detected by analyzing a light that passes through a photographic lens. In case a focal length of the photographic lens moves out of a range wherein the set image magnification can be obtained, various options, such as a shutter-release lock operation, can be executed depending upon the chosen design of the camera.
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公开(公告)号：US5065175A
公开(公告)日：1991-11-12
申请号：US406523
申请日：1989-09-13
申请人： Noboru Suzuki , Shigeo Toji , Masahiro Kawasaki
发明人： Noboru Suzuki , Shigeo Toji , Masahiro Kawasaki
IPC分类号： G02B7/36
CPC分类号： G02B7/36
摘要： An autofocus system for a single-lens-reflex camera system, in which an autofocus operation is executed in cooperation with a camera body and a lens unit mounted to the camera body. The amount of cooperation between the lens unit and camera body is determined by the camera body, and depends upon the performance of the lens unit mounted thereto. Where the lens unit is equipped with a computing means and a lens drive means, the camera body merely detects a defocus amount and sends it to the lens unit so that a focusing operation can be executed by the lens unit itself.
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公开(公告)号：US5832316A
公开(公告)日：1998-11-03
申请号：US866257
申请日：1997-05-30
申请人： Noboru Suzuki , Shigeo Toji , Masahiro Kawasaki
发明人： Noboru Suzuki , Shigeo Toji , Masahiro Kawasaki
摘要： An image magnification control device for a camera. Control focal length required to maintain an image magnification constant is computed based upon defocus information detected by analyzing a light that passes through a photographic lens. In case a focal length of the photographic lens moves out of a range wherein the set image magnification can be obtained, various options, such as a shutter-release lock operation, can be executed depending upon the chosen design of the camera.
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公开(公告)号：US5708869A
公开(公告)日：1998-01-13
申请号：US701759
申请日：1996-08-22
申请人： Noboru Suzuki , Shigeo Toji , Masahiro Kawasaki
发明人： Noboru Suzuki , Shigeo Toji , Masahiro Kawasaki
摘要： An image magnification control device for a camera. Control focal length required to maintain an image magnification constant is computed based upon defocus information detected by analyzing a light that passes through a photographic lens. In case a focal length of the photographic lens moves out of a range wherein the set image magnification can be obtained, various options, such as a shutter-release lock operation, can be executed depending upon the chosen design of the camera.
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