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1. 发明授权

US5359457A Wide-angle zoom lens system 失效
标题翻译：广角变焦镜头系统
公开(公告)号：US5359457A
公开(公告)日：1994-10-25
申请号：US947788
申请日：1992-09-18
申请人： Manami Saka , Katsuhiro Takamoto
发明人： Manami Saka , Katsuhiro Takamoto
IPC分类号： G02B15/173 , G02B15/14
CPC分类号： G02B15/173
摘要： A wide-angle zoom lens system comprises, from the object side to the image side, a first positive lens unit being stationary on an optical axis during a zooming operation, a second negative lens unit shifting along the optical axis during the zooming operation, a third positive lens unit being stationary on the optical axis during the zooming operation, and a fourth positive lens unit shifting along the optical axis during the zooming operation, wherein the refractive power of the first and second lens units fulfills the predetermined conditions.
摘要翻译：广角变焦透镜系统包括从物体侧到像侧，在变焦操作期间在光轴上固定的第一正透镜单元，在变焦操作期间沿着光轴移动的第二负透镜单元，第三正透镜单元在变焦操作期间在光轴上是静止的，以及在变焦操作期间沿着光轴移动的第四正透镜单元，其中第一和第二透镜单元的屈光力达到预定条件。

2. 发明授权

US4863248A Single collimator lens 失效
标题翻译：单准直透镜
公开(公告)号：US4863248A
公开(公告)日：1989-09-05
申请号：US274298
申请日：1988-11-21
申请人： Manami Saka
发明人： Manami Saka
IPC分类号： G02B27/30 , G02B3/02 , G02B13/18 , G02B13/24
CPC分类号： G02B3/02 , G02B13/24
摘要： A collimator lens of a single lens type having a convex aspherical surface on the collimated light side and a plane surface on the condensed light side fulfills the following conditions: ##EQU1## wherein f represents a focal length of the collimator lens; t represents an axial distance of the collimator lens; NA represents a numerical aperture of the collimator lens; n represents a refractive index of the collimator lens; r represents a radius of curvature of the convex aspherical surface in the paraxial region. According to the collimator lens of a single lens type thus configurated, short axial distance and light weight can be realized, which makes it possible to be formed by the liquid glass drop method. In addition, the collimator lens of a single lens type which keeps good balance of an axial aberration and an off-axial aberration is obtainable.
摘要翻译：在准直光侧具有凸形非球面的表面和聚光侧的平面的单透镜型准直透镜满足以下条件：其中f表示准直透镜的焦距; t表示准直透镜的轴向距离; NA表示准直透镜的数值孔径; n表示准直透镜的折射率; r表示近轴区域中的凸非球面的曲率半径。根据这样构成的单透镜的准直透镜，可以实现短的轴向距离和重量轻，这可以通过液体玻璃滴下法形成。此外，可以获得保持良好平衡轴向像差和偏轴像差的单透镜类型的准直透镜。

3. 发明授权

US5543970A Zoom lens system 失效
标题翻译：变焦镜头系统
公开(公告)号：US5543970A
公开(公告)日：1996-08-06
申请号：US197006
申请日：1994-02-15
申请人： Kazuyoshi Hata , Yukio Maekawa , Katsuhiro Takamoto , Manami Saka
发明人： Kazuyoshi Hata , Yukio Maekawa , Katsuhiro Takamoto , Manami Saka
IPC分类号： G02B15/173 , G02B15/14 , G02B13/18
CPC分类号： G02B15/173
摘要： A zoom lens system according to the present invention comprises, from the object side to the image side, a first lens unit with a positive refractive power including a negative high dispersion lens element and a positive lens element; a second lens unit with a negative refractive power consisting of two or three lens elements including a positive high dispersion lens element and a negative lens element, and having at least one aspherical surface; and a third lens unit with a positive refractive power consisting of five or less lens elements including a negative high dispersion lens element and one or two positive lens elements located on the object side of the negative high dispersion lens element, and having at least one aspherical surface. With the lens arrangement, a compact high-zoom-ratio zoom lens system having a high aberration correction performance is realized.
摘要翻译：根据本发明的变焦透镜系统包括从物体侧到像侧，具有包括负高分散透镜元件和正透镜元件的正折光力的第一透镜单元; 具有负折射力的第二透镜单元，由具有正高分散透镜元件和负透镜元件的两个或三个透镜元件组成，并具有至少一个非球面; 以及具有正折射光焦度的第三透镜单元，其由五个或更少的透镜元件组成，所述透镜元件包括负高分散透镜元件和位于负高分散透镜元件的物体侧上的一个或两个正透镜元件，并且具有至少一个非球面表面。利用透镜布置，实现了具有高像差校正性能的紧凑型高变焦比变焦透镜系统。

4. 发明授权

US5398064A Camera system with automatic variator compensation in a zooming mode of operation 失效
标题翻译：相机系统具有自动变倍补偿的变焦操作模式
公开(公告)号：US5398064A
公开(公告)日：1995-03-14
申请号：US171851
申请日：1993-12-21
申请人： Manami Saka
发明人： Manami Saka
IPC分类号： G03B13/36 , G02B7/08 , G02B7/10 , G02B7/28 , G02B15/14 , H04N5/232
CPC分类号： G02B7/102 , H04N5/23212
摘要： A camera system including an objective lens system and a camera body comprises: a movable lens unit included in the objective lens system to act as a variator for varying a focal length of whole of the objective lens system; a CCD for receiving light passed through the objective lens system to pick up an image formed by the objective lens system; a motor for shifting the CCD along the optical axis of the objective lens system; a first detector for detecting a position of an image formed by the objective lens system to produce a defocus signal representing the position of the image; a second detector for detecting a position of the movable lens unit along the optical axis to produce a lens position signal representing the detected position of the movable lens unit; and a controller for controlling the motor in accordance with both of the defocus signal and the lens position signal to bring the light receiver to the position of the image formed by the objective lens system. According to the above feature, a camera system is realized where a varifocal lens system has a satisfactorily small total length and weight because the shifting CCD serves the function of a compensator lens, and the lens system can be driven at a sufficiently high speed for an AF operation with a video camera, etc.
摘要翻译：一种包括物镜系统和照相机主体的照相机系统包括：包括在物镜系统中的可移动透镜单元，用作用于改变整个物镜系统的焦距的变倍器; 用于接收通过物镜系统的光以拾取由物镜系统形成的图像的CCD; 用于沿着物镜系统的光轴移动CCD的马达; 第一检测器，用于检测由物镜系统形成的图像的位置，以产生表示图像位置的散焦信号; 第二检测器，用于检测可移动透镜单元沿着光轴的位置，以产生表示可移动透镜单元的检测位置的透镜位置信号; 以及控制器，用于根据散焦信号和透镜位置信号来控制电动机，以将光接收器带入由物镜系统形成的图像的位置。根据上述特征，实现了一种相机系统，其中变焦透镜系统具有令人满意的小的总长度和重量，因为移动CCD用于补偿透镜的功能，并且可以以足够高的速度驱动透镜系统使用摄像机进行AF操作等

5. 发明授权

US5268793A Zoom lens system 失效
标题翻译：变焦镜头系统
公开(公告)号：US5268793A
公开(公告)日：1993-12-07
申请号：US10582
申请日：1993-01-28
申请人： Manami Saka , Katsuhiro Takamoto
发明人： Manami Saka , Katsuhiro Takamoto
IPC分类号： G02B13/18 , G02B15/16 , G02B15/173 , G02B15/14
CPC分类号： G02B15/173
摘要： A variable lens system has three lens unit whose refractive powers are positive, negative and positive from an object side to the image side. Each lens unit consists of at least two lens elements. The central lens unit and the image side lens unit are shifted along an optical axis during a zooming operation. The lens system fulfills the conditions: ##EQU1## wherein fS, Z, and Y' represent the shortest focal length, a zoom ratio and an image height, respectively, of the lens system. .phi.1 and .phi.2 represent refractive powers of the object side and central lens units.
摘要翻译：可变透镜系统具有三个透镜单元，其折射力从物体侧到像侧为正，负和正。每个透镜单元由至少两个透镜元件组成。在变焦操作期间，中心透镜单元和图像侧透镜单元沿光轴移动。透镜系统满足以下条件：0.10 其中fS，Z和Y'表示最短焦距，a 分别为透镜系统的变焦比和图像高度。 phi 1和phi 2表示物体侧和中心透镜单元的折射力。

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