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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：US4855777A
公开(公告)日：1989-08-08
申请号：US162575
申请日：1988-03-01
IPC分类号： G02B7/34
CPC分类号： G02B7/34
摘要： An focus detecting apparatus has a scanning plate disposed on or near the predetermined imaging plane of an objective lens and reciprocally movable to grating-scan the image of an object, a mask having an aperture adjacent to the scanning plate and movable to a desired position in a plane perpendicular to the optic axis of the objective lens to determine a range for detection, a plurality of light-receiving devices for receiving light fluxes passed through the scanning plate and the mask and outputting a signal regarding the focus adjusted state of the objective lens, and a field lens for relating the light fluxes entering the light-receiving devices to each other so as to pass through different areas of the exit pupil of the objective lens.
摘要翻译： 焦点检测装置具有设置在物镜的预定成像平面上或附近的扫描板，并且可往复移动以对物体的图像进行光栅扫描;掩模具有邻近扫描板的孔，并可移动到所需位置 垂直于物镜的光轴的平面以确定检测范围;多个用于接收通过扫描板和掩模的光束的光接收装置，并输出关于物镜的焦点调整状态的信号 以及用于将进入光接收装置的光束彼此相关联以通过物镜的出射光瞳的不同区域的场透镜。
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公开(公告)号：US5091742A
公开(公告)日：1992-02-25
申请号：US499634
申请日：1990-03-27
CPC分类号： G02B7/36 , G03B2217/005
摘要： An auto focusing device or a camera including such a device has a focus detecting circuit for detecting the defocus states of a plurality of objects. A calculation circuit calculates a lens position and an aperture value which are capable of placing at least two of the plurality of objects in focus on the basis of the detected defocus states. When a defocus amount difference between the two objects is outside of a predetermined range, the calculation circuit calculates a lens position capable of placing two other objects, the defocused amount difference between which is within the predetermined range, in focus.
摘要翻译： 包括这种装置的自动对焦装置或照相机具有用于检测多个物体的散焦状态的聚焦检测电路。 计算电路基于检测到的散焦状态来计算能够将多个物体中的至少两个放置在焦点上的透镜位置和孔径值。 当两个物体之间的散焦量差异在预定范围之外时，计算电路计算焦点上能够放置另外两个物体的透镜位置，其散焦量差在预定范围内。
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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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5.发明授权Focus detection device having a plurality of means for forming light patterns provided at different distances from the optical axis 失效焦点检测装置具有多个用于形成设置在与光轴不同的距离处的光图案的装置
公开(公告)号：US5109154A
公开(公告)日：1992-04-28
申请号：US690332
申请日：1991-04-26
申请人： Masaki Higashihara , Keiji Ohtaka , Kenji Suzuki , Takeshi Koyama , Yasuo Suda
发明人： Masaki Higashihara , Keiji Ohtaka , Kenji Suzuki , Takeshi Koyama , Yasuo Suda
CPC分类号： G02B7/346
摘要： A focusing detecting device is disclosed having apparatus for forming object light patterns whose relative position changes in conformity with a focus state of an objective lens. Light flux passes through different areas of an exit pupil of the objective lens, and circuitry receives and photoelectrically converts the light patterns, and detects the focus state of the objective lens on the basis of the photoelectrically converted signal. The focusing apparatus accroding to the present invention a plurality of sets of structures for forming light patterns and means for photoelectrically converting the light patterns which are provided at different distances from the position of the optic axis of the objective lens. Also disclosed are means for making (a) the shapes of the areas of the exit pupil through which the light flux is passed to form the light patterns, or (b) intervals between the centers of gravity of said areas, or (c) both, different between a position in the vicinity of the optic axis of the objective lens, and a position distant therefrom.
摘要翻译： 公开了一种聚焦检测装置，其具有用于形成相对位置根据物镜的焦点状态变化的物体光图案的装置。 光通量通过物镜的出射光瞳的不同区域，并且电路接收并光电转换光图案，并且基于光电转换信号检测物镜的聚焦状态。 根据本发明的聚焦装置用于形成光图案的多组结构和用于光电转换设置在与物镜的光轴的位置不同的距离处的光图案的装置。 还公开了用于制造（a）通过光束通过的出射光瞳的区域的形状以形成光图案的装置，或（b）所述区域的重心之间的间隔，或（c）两者 在物镜的光轴附近的位置和远离物镜的位置之间不同。
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6.发明授权Camera apparatus having means for setting the position of an optical grating at a desired location in the viewfinder 失效相机装置具有用于将光栅的位置设置在取景器中的期望位置的装置
公开(公告)号：US4963912A
公开(公告)日：1990-10-16
申请号：US281780
申请日：1988-12-09
申请人： Yasuo Suda , Masaki Higashihara
发明人： Yasuo Suda , Masaki Higashihara
CPC分类号： G02B7/34 , G03B7/09972
摘要： A camera apparatus having means for setting an optical grating at a desired location in the viewfinder includes a viewfinder for observing a prospective image plane of an objective lens, a light dividing mirror for reflecting the light toward the viewfinder, and a scanning plate having a reflective optical grating thereon for scanning the image of an object on the prospective image plane. Light receiving circuitry is provided for receiving light reflected by the optical grating through the light dividing mirror, and for forming an electrical signal representing the focus adjusting state of the objective lens. Structure is provided for setting the optical grating in a desired position in the viewing field of the viewfinder.
摘要翻译： 具有用于在取景器中的期望位置设置光栅的装置的相机装置包括用于观察物镜的预期图像平面的取景器，用于将光朝向取景器反射的分光镜，以及具有反射 光栅，用于扫描预期图像平面上的物体的图像。 光接收电路用于接收由光分光镜反射的光，并形成表示物镜聚焦调节状态的电信号。 提供了用于将光栅设置在取景器的视野中的期望位置的结构。
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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：US5628038A
公开(公告)日：1997-05-06
申请号：US227349
申请日：1994-04-14
申请人： Masaki Higashihara
发明人： Masaki Higashihara
CPC分类号： G03B19/12 , G03B7/09972
摘要： A camera with a mirror device comprises a first mirror, i.e., a main mirror, device for reflecting object light, and a second mirror, i.e., a sub-mirror, device for reflecting light transmitted through the first mirror device to another device, i.e., a focus detector. The second mirror device has a reflective layer formed as a sub-mirror surface formed directly on a base member. With the sub-mirror surface formed by, e.g., evaporation directly on a partial protruded area of the base member, the manufacture process is facilitated, a sub-mirror area can be increased, and reliability and durability are improved because the sub-mirror will not experience variations in its mounting angle or be subject to peeling-off from a separate base member.
摘要翻译： 具有镜装置的相机包括第一反射镜，即主镜，用于反射物体光的装置，以及第二反射镜，即用于将透过第一反射镜装置的光反射到另一装置的副镜装置，即， ，焦点检测器。 第二反射镜装置具有形成为直接形成在基体上的副镜面的反射层。 通过例如直接蒸发在基底部件的突出区域上形成的副镜表面，便于制造过程，可以增加副镜面积，并且由于副镜将会提高可靠性和耐久性 不会经历其安装角度的变化或者不能从单独的基座部件剥离。
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