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公开(公告)号：US5061951A
公开(公告)日：1991-10-29
申请号：US582118
申请日：1990-09-14
CPC分类号： G02B7/36
摘要： An auto focus device which foreseeing-calculates a change in the focal plane based on the movement of an object after a predetermined time on the basis of focus detection result in the past and a latest focus detection result, and moves a lens to the foreseeing-calculated position. Whether the data used for the foreseeing calculation are data suitable for the foreseeing calculation is judged each time focus detection is effected, and when it is continuously judged that the data are data unsuitable for the foreseeing calculation, lens driving based on the foreseeing calculation is inhibited.
摘要翻译： 基于过去的焦点检测结果的预定时间之后的物体的移动和最近的焦点检测结果，预测的自动聚焦装置 - 基于物体的移动来计算焦平面的变化，并且将透镜移动到预测 - 计算位置。 在每次进行焦点检测时都判断用于预测计算的数据是否适合于预计计算的数据，并且当连续判断数据是不适合于预计计算的数据时，基于预见计算的透镜驱动被禁止 。
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公开(公告)号：US5060002A
公开(公告)日：1991-10-22
申请号：US308034
申请日：1989-02-09
IPC分类号： G02B7/36
CPC分类号： G02B7/36
摘要： A focus adjusting device which finds the lens driving amount for the position of the image plane in the future based on focus adjustment data obtained in past focus adjustment cycles includes a calculation circuit for calculating the lens driving amount or the position of the image plane in accordance with predetermined functional equations which use the data obtained in the past. The functional equation or equations used may be changed depending upon the number of times in the past over which the focus adjusting cycle was executed, or the reliability, e.g., contrast, of the auto focus signal.
摘要翻译： 基于过去的焦点调整周期中获得的焦点调整数据，在将来找到未来的图像平面的位置的透镜驱动量的对焦调整装置包括：计算电路，用于计算透镜驱动量或图像平面的位置 具有使用过去获得的数据的预定函数方程。 所使用的功能方程式或方程式可以根据执行焦点调整周期的过去次数或自动对焦信号的可靠性（例如对比度）来改变。
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公开(公告)号：US4974002A
公开(公告)日：1990-11-27
申请号：US313513
申请日：1989-02-22
CPC分类号： G02B7/36
摘要： An automatic focus adjusting device which takes into account a change in the position of the image plane of an object caused by movement of the object during the focus adjusting operation time and makes a lens in focus to the moving object. The position of the image plane of the object after the focus adjusting operation time is foreseeing-calculated with the result of a past focus adjusting operation as a factor, and the current focus adjusting operation time is foreseen in conformity with the foreseeing-calculated value, and the position of the image plane of the object is again foreseeing-calculated with the foreseen time as a factor.
摘要翻译： 一种自动对焦调节装置，其考虑了在焦点调整操作时间期间由物体的移动引起的物体的图像平面的位置的变化，并使透镜聚焦到移动物体。 聚焦调整操作时间之后的对象的图像平面的位置是以过去的焦点调整操作的结果作为因子来预测的，并且根据预计计算值来预测当前焦点调整操作时间， 并且对象的图像平面的位置再次被预测 - 以预计的时间作为因子计算。
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公开(公告)号：US5081479A
公开(公告)日：1992-01-14
申请号：US467196
申请日：1990-01-18
CPC分类号： G02B7/36
摘要： This invention relates to an automatic focusing device, particular capable of foreseeing the position of an object after a predetermined future time based on the results of a plurality of past focusing operations, thus enabling the focusing to the object. An automatic focusing device is provided which executes calculations for the abovementioned foreseeing after the execution of a predetermined number of focusing operations. However, if a focused state is identified in a focusing operation in the course of the execution of the predetermined number of focusing operations, the device is adapted to disregard the first-mentioned focusing operation as if it had not been conducted and to exclude the first-mentioned focusing operation from the counting of the predetermined number of focusing operations.
摘要翻译： 本发明涉及一种自动聚焦装置，其特别是能够基于多个过去的聚焦操作的结果预测在预定的未来时间之后的物体的位置，从而能够对对象进行聚焦。 提供了一种自动对焦装置，其在执行预定数量的聚焦操作之后执行上述预见的计算。 然而，如果在执行预定数量的聚焦操作的过程中在聚焦操作中识别到聚焦状态，则该设备适于忽视首先提到的聚焦操作，就好像它未被执行，并且排除第一 来自对预定次数的聚焦操作的计数的所述聚焦操作。
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公开(公告)号：US4908645A
公开(公告)日：1990-03-13
申请号：US305162
申请日：1989-02-02
IPC分类号： G02B7/34
CPC分类号： G02B7/34
摘要： An automatic focusing device for foreseeing or predicting the position of object after a predetermined time, based on plural past focusing operations on the object, utilizing a function of a higher order, and driving a lens for focusing to the predicted object position. According to the present invention there is provided a correcting circuit for correcting the coefficients of the higher-order function to reduce the influence of the measuring errors contained in the past focusing results, thus constantly enabling appropriate focusing.
摘要翻译： 一种自动对焦装置，用于基于对对象的多次过去聚焦操作，利用较高阶的功能来预测或预测物体在预定时间之后的位置，并且驱动用于聚焦到预测对象位置的透镜。 根据本发明，提供了一种用于校正高阶函数的系数以减少过去聚焦结果中包含的测量误差的影响的校正电路，从而不断地实现适当的聚焦。
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公开(公告)号：US5140359A
公开(公告)日：1992-08-18
申请号：US684499
申请日：1991-04-15
申请人： Masaki Higashihara , Ichiro Ohnuki , Akira Akashi , Terutake Kadohara , Hidehiko Fukahori , Yasuo Suda , Kenji Itoh
发明人： Masaki Higashihara , Ichiro Ohnuki , Akira Akashi , Terutake Kadohara , Hidehiko Fukahori , Yasuo Suda , Kenji Itoh
IPC分类号： G02B7/34
CPC分类号： G02B7/34
摘要： An auto focusing device for foreseeing-calculating lens driving data for making a lens focus on an object after a predetermined time on the basis of the past focus adjusting operation data and the latest focus detection data. A plurality of distance measuring points are read to effect distance measurements at a time. Data suitable for foreseeing calculation is found from the respective distance measuring points, and the data suitable for foreseeing calculation is specified as the latest focus detection data used for the foreseeing calculation.
摘要翻译： 一种自动对焦装置，用于根据过去的焦点调整操作数据和最近的焦点检测数据，在预定时间之后预测计算用于使镜头聚焦在物体上的透镜驱动数据。 读取多个距离测量点以一次实现距离测量。 从相应距离测量点发现适合于预测计算的数据，并将适合于预测计算的数据指定为用于预计计算的最新焦点检测数据。
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公开(公告)号：US5089843A
公开(公告)日：1992-02-18
申请号：US671649
申请日：1991-03-20
IPC分类号： G02B7/36
CPC分类号： G02B7/36
摘要： An auto focus device for predicting the position of a moving objerct after a predetermined time on the basis of past autofocus operations and driving the lens to focus on the predicted position. The predetermined time being calculated based on the discrimination of the direction of movement of the object. The predicting calculations place the lens in a closer near state rather than making the lens in focus to the moving object.
摘要翻译： 一种自动对焦装置，用于基于过去的自动对焦操作在预定时间之后预测运动对象的位置，并且驱动镜头以聚焦于预测位置。 基于对物体的移动方向的辨别来计算预定时间。 预测计算将镜头置于更接近的状态，而不是将镜头对准移动物体。
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公开(公告)号：US5061953A
公开(公告)日：1991-10-29
申请号：US639420
申请日：1991-01-10
CPC分类号： G02B7/36
摘要： A focus adjusting apparatus in which a lens position in focus to an object at a predetermined time is foreseen with the result of the distance measurement at a plurality of times in the past taken into account, and a lens is driven to the foreseen position to thereby make the lens always in focus to a moving object. Whether the distance measurement is being continuously effected for the same object is discriminated based on the continuity of movement of the moving object and when the distance measurement for the same object is not effected, the foreseeing operation is inhibited and proper foreseeing operations are executed.
摘要翻译： 考虑到过去考虑到多次的距离测量的结果，预测在预定时间对焦在物体上的透镜位置的焦点调节装置，并且将透镜驱动到预定位置，从而 使镜头始终对准移动物体。 基于运动物体的运动的连续性来判别距离测量是否持续进行同一物体的距离测量，并且当不对同一物体进行距离测量时，可以预测可预见的操作并执行适当的预见操作。
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公开(公告)号：US5005037A
公开(公告)日：1991-04-02
申请号：US528908
申请日：1990-05-29
CPC分类号： G02B7/282
摘要： Apparatus for use with an autofocus adjusting device which has a focus detecting circuit for detecting a focus state of an imaging optical system, and a driving circuit for driving the imaging optical system in accordance with the detected focus has a calculation circuit for performing a first calculation in which imaging plane positions at a plurality of points of time in the past and in the present time are determined on the basis of a signal representing a focusing state in the past and a signal representing a focusing state at the latest time to determine coefficients of a predetermined higher order function. The calculation circuit also performs a second calculation in which an imaging plane position at a time after a predetermined period of time has past is determined on the basis of the higher order function. A regulation circuit regulates the signal representing the focusing state detected by the focus detecting circuit when the second calculation is performed, and causes the second calculation to be performed on the basis of the regulated signal. A control circuit is provided for transmitting the signal representing the imaging plane position obtained by the calculation circuit to the driving circuit for driving the imaging optical system. This allows proper focus point prediction even when the zoom state of a zoom lens changes.
摘要翻译： 用于具有用于检测成像光学系统的聚焦状态的聚焦检测电路的自动对焦调整装置和根据检测到的焦点驱动成像光学系统的驱动电路的装置具有用于执行第一计算的计算电路 其中在过去和当前时间的多个时间点处的成像平面位置基于表示过去的聚焦状态的信号和表示最近时间的聚焦状态的信号来确定，以确定系数 预定的高阶函数。 计算电路还执行第二计算，其中基于较高阶函数确定在预定时间段之后的时间过去的成像平面位置。 当执行第二次计算时，调节电路调节表示由焦点检测电路检测到的聚焦状态的信号，并且基于调节信号进行第二次计算。 提供控制电路，用于将表示由计算电路获得的成像平面位置的信号传输到用于驱动成像光学系统的驱动电路。 即使当变焦镜头的变焦状态改变时，也允许适当的对焦点预测。
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公开(公告)号：US4974003A
公开(公告)日：1990-11-27
申请号：US375875
申请日：1989-07-06
摘要： In a camera having an autofocus device, when performing a continuous shooting, an autofocus operation by the autofocus device is repeatedly performed during a time from the termination of the shooting operation to the completion of a preparation for the next shooting operation, and if the performance of the autofocus operation has been at least once completed before the completion of the preparation for the next shooting operation, the completion of the aforesaid preparation for the next shooting operation is, even though the autofocus operation is in progress, immediately followed by the start of the next shooting operation, while if the autofocus operation has not been at least once completed before the completion of the aforesaid preparation for the next shooting operation, the next shooting operation is started depending on the completion of the autofocus operation.
摘要翻译： 在具有自动对焦装置的相机中，当执行连续拍摄时，在从拍摄操作结束到完成下一次拍摄操作的准备的时间期间，自动对焦装置的自动对焦操作被重复执行，并且如果演奏 在完成下一次拍摄操作的准备之前，自动对焦操作已经至少一次完成，即使自动对焦操作正在进行，上述下一次拍摄操作的准备工作的完成是紧接着开始 下一次拍摄操作时，如果在完成上述下一次拍摄操作的准备之前自动对焦操作尚未至少一次完成，则根据自动对焦操作的完成开始下一次拍摄操作。
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