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公开(公告)号：US5450156A
公开(公告)日：1995-09-12
申请号：US188110
申请日：1994-01-28
CPC分类号： G02B7/102
摘要： A lens position detecting apparatus including an optical system which has a lens group that is movable in an optical axis direction, a lens moving mechanism for holding the lens group in a manner which permits the lens group to be movable in the optical axis direction, and a motor for driving the lens moving mechanism. The lens position detecting apparatus further includes a code reading mechanism which has a code plate with codes which represent the position of the lens group, and a code detecting member for detecting the bodes of the code plate, at least one of either the code plate or the detecting member being movable in association with the movement of the lens group. The lens position detecting apparatus also includes a counting mechanism for counting pulses corresponding to the amount of drive of the motor with reference to an initial value corresponding to a specific position of the lens group, a position detector for detecting the position of the lens group in accordance with the counted value counted by the counting mechanism, a reference value storing mechanism for storing reference values representing the positions of the lens group when the code detecting member detects switching points of the codes, and a correcting mechanism for correcting the counted value by comparing the counted value, counted by the counting mechanism, with the reference value, corresponding to the switching point of the codes, every time the code reading mechanism detects the switching point of the codes.
摘要翻译： 一种透镜位置检测装置，包括具有可沿光轴方向移动的透镜组的光学系统，透镜移动机构，用于以允许透镜组在光轴方向上移动的方式保持透镜组;以及 用于驱动透镜移动机构的马达。 透镜位置检测装置还包括代码读取机构，其具有代码板，代码板代表透镜组的位置，以及代码检测部件，用于检测代码板的条形码，代码板或 所述检测构件可与所述透镜组的移动相关联地移动。 透镜位置检测装置还包括计数机构，用于根据对应于透镜组的特定位置的初始值来计数对应于电动机的驱动量的脉冲;位置检测器，用于检测透镜组的位置 根据由计数机构计数的计数值，用于存储代表代码检测部件检测到代码的切换点时的透镜组的位置的基准值的基准值存储机构，以及通过比较来校正计数值的校正机构 每当代码读取机构检测到代码的切换点时，通过计数机制计数的计数值与参考值对应于代码的切换点。
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公开(公告)号：US5664234A
公开(公告)日：1997-09-02
申请号：US251653
申请日：1994-05-31
CPC分类号： G02B7/102 , G03B17/14 , G03B17/425 , G03B3/10 , G03B7/26 , G03B2217/007
摘要： A camera system that includes a zoom lens having a zooming lens unit and a zoom mechanism which supports the zooming lens unit to move in the optical axis directions, and a camera body to which the zoom lens is detachably mounted. The zoom lens has a motor drive mechanism for driving the zoom mechanism to move the zooming lens unit in the optical axis direction, a lens controller for controlling the drive of the motor drive mechanism, a switching mechanism for performing a predetermined control operation on the lens controller, and a lens input and output device for effecting data communication with the camera body. The camera body has a body controller for controlling operations of the entire camera system, and a body input and output device for effecting data communication with the zoom lens through the lens input and output device.
摘要翻译： 一种照相机系统，包括具有变焦透镜单元和变焦机构的变焦透镜，所述变焦透镜单元和变焦机构支撑所述变焦透镜单元沿光轴方向移动;以及照相机主体，所述变焦镜头可拆卸地安装在所述照相机主体上。 变焦镜头具有用于驱动变焦机构以沿光轴方向移动变焦镜头单元的电动机驱动机构，用于控制电动机构驱动机构的驱动的镜头控制器，对透镜进行规定的控制动作的切换机构 控制器和用于与相机主体进行数据通信的镜头输入和输出装置。 相机主体具有用于控制整个照相机系统的操作的主体控制器和用于通过透镜输入和输出装置与变焦透镜进行数据通信的主体输入和输出装置。
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公开(公告)号：US5617173A
公开(公告)日：1997-04-01
申请号：US390431
申请日：1995-02-17
CPC分类号： G02B7/102 , G03B17/14 , G03B17/425 , G03B3/10 , G03B7/26 , G03B2217/007
摘要： A camera system having a power zoom lens and an automatic focusing device, comprising a zoom motor for zooming the power zoom lens, a focal length detecting device for detecting a focal length of the power zoom lens, an object distance detecting device for detecting a distance of an object which is in focus, and a calculation device for calculating an image magnification in accordance with the focal length and the object distance detected by the focal length detecting device and the object distance detecting device, respectively, and then calculating a target focal length at which the image magnification is kept constant, in accordance with the object distance detected by the object distance detecting device.
摘要翻译： 一种具有动力变焦镜头和自动对焦装置的相机系统，包括用于变焦动力变焦镜头的变焦电动机，用于检测动力变焦镜头的焦距的焦距检测装置，用于检测距离的物体距离检测装置 以及计算装置，用于分别根据由焦距检测装置和物体距离检测装置检测的焦距和物体距离来计算图像放大率，然后计算目标焦距 根据由物体距离检测装置检测到的物体距离，图像放大率保持恒定。
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公开(公告)号：US5396306A
公开(公告)日：1995-03-07
申请号：US193669
申请日：1994-02-07
摘要： A lens driving apparatus in an optical system including a movable lens unit and a lens moving mechanism which supports the movable lens unit to move in an optical axis direction. The lens driving apparatus further includes a motor for driving the lens moving mechanism to move the movable lens unit, a power supply for continuously or discontinuously supplying the motor with electrical power, a detecting device for generating detection signals in association with the operation of the motor at a predetermined interval corresponding to a predetermined displacement thereof, a speed setting device for setting the operational speed of the motor at a time interval corresponding to the output of the detection signals of the detecting device, and a supply control device for shortening the discontinuous supply time by a predetermined time unit when the detection signals are outputted within the time interval, and for lengthening the discontinuous supply time by a predetermined time unit when no detection signal is outputted within the time interval, respectively.
摘要翻译： 一种光学系统中的透镜驱动装置，包括可移动透镜单元和透镜移动机构，其支撑可移动透镜单元沿光轴方向移动。 透镜驱动装置还包括用于驱动透镜移动机构以移动可移动透镜单元的电动机，用于连续或不连续地向电动机供电的电源，用于产生与电动机的操作相关联的检测信号的检测装置 在对应于其预定位移的预定间隔处，设置用于以与所述检测装置的检测信号的输出相对应的时间间隔设定所述电动机的操作速度的速度设定装置，以及用于缩短所述不连续供给的供给控制装置 当在时间间隔内输出检测信号时，以预定的时间单位进行时间预定，并且在时间间隔内没有输出检测信号时，将不连续的供给时间延长预定的时间单位。
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公开(公告)号：US5367354A
公开(公告)日：1994-11-22
申请号：US886701
申请日：1992-05-21
CPC分类号： G02B7/102 , G03B17/14 , G03B17/425 , G03B3/10 , G03B7/26 , G03B2217/007
摘要： A motor driven lens includes a movable lens group and a lens moving mechanism which hold and move the movable lens group in an optical axis direction within a predetermined movable range. The motor driven lens further includes a motor for driving the lens moving mechanism to move the movable lens group. A counter counts the time in which a movement of the movable lens group is impeded during the operation of the motor, and a control device controls an operational speed of the motor and stops the operation of the motor for a predetermined period of time in which the movement of the movable lens group is impeded, depending on the operational speed of the motor.
摘要翻译： 马达驱动透镜包括可移动透镜组和透镜移动机构，其将可移动透镜组沿光轴方向保持并移动到预定可移动范围内。 马达驱动透镜还包括用于驱动透镜移动机构以移动可移动透镜组的马达。 计数器对电动机的运转期间阻止移动透镜组的移动的时间进行计数，并且控制装置控制电动机的操作速度并停止电动机的操作一段预定的时间，其中 取决于电动机的操作速度，可动镜头组的移动受到阻碍。
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公开(公告)号：US5315345A
公开(公告)日：1994-05-24
申请号：US886402
申请日：1992-05-21
CPC分类号： G02B7/102 , G03B17/14 , G03B17/425 , G03B3/10 , G03B7/26 , G03B2217/007
摘要： A camera system that includes a taking lens having a motor drive mechanism and a control mechanism for controlling the motor drive mechanism, and a camera body to which the taking lens is detachably mounted. The camera system has a power supply that is provided in the camera body. Power supplying circuits provided in the camera body and the taking lens independently supply the motor drive mechanism and the control mechanism with electrical power. An abnormal power supply detecting device in the taking lens detects an abnormality in the supply of power to the motor drive mechanism, and a power cutting device in the camera body cuts the power supply to the motor drive mechanism when the abnormal power supply detecting device detects an abnormality in the power supply.
摘要翻译： 一种照相机系统，包括具有电动机驱动机构的拍摄镜头和用于控制电动机驱动机构的控制机构，以及拍摄镜头可拆卸地安装到该照相机主体。 相机系统具有设置在照相机主体中的电源。 设置在照相机主体和拍摄镜头中的供电电路独立地通过电力供应电动机驱动机构和控制机构。 拍摄镜头中的异常电源检测装置检测到对电动机驱动机构的供电的异常，并且当异常电源检测装置检测到电力驱动机构时，照相机体中的动力切断装置切断对电动机驱动机构的电力供应 电源异常。
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公开(公告)号：US5331367A
公开(公告)日：1994-07-19
申请号：US886349
申请日：1992-05-21
CPC分类号： G02B7/102 , G03B17/14 , G03B17/425 , G03B3/10 , G03B7/26 , G03B2217/007
摘要： A camera including a power zoom lens having a zoom mechanism, which supports a zooming lens unit to move in the optical axis direction, and a shutter mechanism. The camera further includes a motor for driving the zoom mechanism, and a control device for actuating the motor for a predetermined period of time after a shutter has been opened and before the shutter is subsequently closed.
摘要翻译： 一种照相机，包括具有变焦机构的功率变焦镜头，该变焦机构支撑变焦透镜单元沿光轴方向移动，以及快门机构。 照相机还包括用于驱动变焦机构的电动机和用于在快门被打开之后并且在快门随后关闭之后的预定时间段内致动电动机的控制装置。
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公开(公告)号：US5363165A
公开(公告)日：1994-11-08
申请号：US886690
申请日：1992-05-21
CPC分类号： G02B7/102 , G03B17/14 , G03B17/425 , G03B3/10 , G03B7/26 , G03B2217/007
摘要： A power zoom lens having a zooming lens unit which is movable in an optical axis direction to vary a focal length thereof and which is detachably mounted to a camera body. The power zoom lens includes a drive mechanism for driving the zooming lens unit, a detecting device for detecting a focal length of the power zoom lens, a memory device for storing the focal length detected by the detecting device, and a control device for controlling the drive mechanism until the focal length stored in the memory device is obtained.
摘要翻译： 一种电动变焦镜头，其具有可沿光轴方向移动的变焦透镜单元，用于改变其焦距并且可拆卸地安装在照相机主体上。 功率变焦透镜包括用于驱动变焦透镜单元的驱动机构，用于检测功率变焦镜头的焦距的检测装置，用于存储由检测装置检测的焦距的存储装置，以及用于控制 驱动机构，直到获得存储在存储器件中的焦距。
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9.发明授权Camera system having a communication system between a camera body and a photographing lens 失效相机系统具有在相机主体和拍摄透镜之间的通信系统公开(公告)号：US06707992B2
公开(公告)日：2004-03-16
申请号：US10083618
申请日：2002-02-27
IPC分类号： G03B1700
CPC分类号： G03B17/00 , G02B27/646 , G03B5/00 , G03B7/26 , G03B17/02 , G03B17/14 , G03B2205/0007 , G03B2217/005
摘要： An interchangeable lens camera system having a camera body, a photographing lens, and a rear converter, the camera body and photographing lens communicating with each other via a first group of contacts and a second group of contacts, respectively, includes a group of relay channels via which the first group of contacts are electrically connected with the second group of contacts, in a state where the rear converter is mounted between the camera body and the photographing lens; a memory in which rear converter data is stored; and a controller which reads the rear converter data from the memory. The memory and the controller have a function to send the rear converter data to the camera body while the camera body and the photographing lens communicate with each other via the first group of contacts, the second group of contacts, and the group of relay channels.
摘要翻译： 具有照相机主体，拍摄镜头和后转换器的可互换镜头相机系统，分别经由第一组触点和第二组触点相互通信的照相机主体和拍摄镜头分别包括一组中继通道 在后转换器安装在相机主体和拍摄镜头之间的状态下，第一组触点通过该第一组触点与第二组触点电连接; 存储后转换器数据的存储器; 以及从存储器读取后转换器数据的控制器。 存储器和控制器具有将相机主体和拍摄镜头经由第一组触点，第二组触点和中继通道组彼此通信的方式将后转换器数据发送到相机主体的功能。
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公开(公告)号：US5713052A
公开(公告)日：1998-01-27
申请号：US529576
申请日：1995-09-18
CPC分类号： G03B17/14
摘要： A camera system includes a camera body and a photographing lens which is detachably attached to the camera body. The photographing lens has an input and output device which inputs and outputs data to and from the camera body, a timing controller which outputs clock pulses for driving the input and output device, and a loading device which loads specific initial value lens data in the input and output device in accordance with the clock pulses. The camera body includes an information processing device which receives the specific initial value lens data loaded in the input and output device.
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