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41. 发明授权

US5289317A Compact zoom lens 失效
标题翻译：紧凑型变焦镜头
公开(公告)号：US5289317A
公开(公告)日：1994-02-22
申请号：US63041
申请日：1993-05-19
申请人： Keiji Ikemori , Koutaro Yano , Hiroki Nakayama
发明人： Keiji Ikemori , Koutaro Yano , Hiroki Nakayama
IPC分类号： G02B15/177 , G02B15/14
CPC分类号： G02B15/177
摘要： A zoom lens comprising, from front to rear, a first lens group of negative power, a second lens group of positive power and a third lens group of negative power, wherein as zooming from the wide-angle end to the telephoto end is performed by moving the first, second and third lens groups, the second and third lens groups both are directed forward and the speed of movement of the third lens group is faster than that of movement of the second lens group, the zoom lens satisfying the following conditions:1
摘要翻译：一种变焦透镜，包括从前到后具有负功率的第一透镜组，正光焦度的第二透镜组和负光焦度的第三透镜组，其中，从广角端到望远端的变焦由移动第一，第二和第三透镜组时，第二透镜组和第三透镜组都向前指向，并且第三透镜组的移动速度比第二透镜组的移动速度快，该变焦透镜满足以下条件： 1

42. 发明授权

US4826301A Photographic system having soft focus function 失效
标题翻译：具有柔焦功能的照相系统
公开(公告)号：US4826301A
公开(公告)日：1989-05-02
申请号：US926648
申请日：1986-11-03
申请人： Keiji Ikemori
发明人： Keiji Ikemori
IPC分类号： G02B13/18 , G02B13/20
CPC分类号： G02B13/20 , G02B13/18
摘要： A photographic objective having a soft focus function comprising, from front to rear, a first lens component of positive power, a second lens component having a meniscus-shaped lens of forward convexity, an aperture stop, and a third lens component, the second lens component being axially movable for the purpose of producing a soft focus effect, and a technique of compensating for the image shift resulting from the movement of the soft focus-introducing lens component by automatically readjusting the position of the focusing lens component, are disclosed.
摘要翻译：具有软焦点功能的照相物镜包括从前到后的正功率的第一透镜部件，具有前凸的弯月面透镜的第二透镜部件，孔径光阑和第三透镜部件，第二透镜公开了用于产生软焦点效果的轴向可移动部件，以及通过自动重新调整聚焦透镜部件的位置来补偿由于通过软焦点引入透镜部件的移动而产生的图像偏移的技术。

43. 发明授权

US4750821A Zoom lens assembly 失效
标题翻译：变焦镜头组合
公开(公告)号：US4750821A
公开(公告)日：1988-06-14
申请号：US768408
申请日：1985-08-22
申请人： Hiroshi Yamamoto , Keiji Ikemori
发明人： Hiroshi Yamamoto , Keiji Ikemori
IPC分类号： G02B7/10 , G02B7/04
CPC分类号： G02B7/10
摘要： A zoom lens optical system having the focusing provision at a rear zoom component with an automatic mechanism for varying its axial position as a function of the focal length of the entire system with an object at a constant distance. The automatic mechanism includes a motor whose stator and rotor are formed to hollow cylindrical shapes and a device for producing a driving signal for the motor with the power density thereof varying with the variation of the focal length.
摘要翻译：一种变焦透镜光学系统，其具有在后变焦部件处的聚焦设置，该自动机构用于随着物体处于恒定距离的整个系统的焦距而改变其轴向位置。该自动机构包括其定子和转子形成为中空圆柱形状的电动机以及用于产生电动机的驱动信号的装置，其功率密度随着焦距的变化而变化。

44. 发明授权

US4730199A Photographic apparatus 失效
标题翻译：摄影器材
公开(公告)号：US4730199A
公开(公告)日：1988-03-08
申请号：US795619
申请日：1985-11-06
申请人： Keiji Ikemori , Ichiro Ohnuki , Masaharu Eguchi
发明人： Keiji Ikemori , Ichiro Ohnuki , Masaharu Eguchi
IPC分类号： G02B15/20 , G02B5/04 , G02B13/00 , G02B15/173 , G03B19/12
CPC分类号： G03B19/12 , G02B15/173 , G02B5/04 , Y10S358/906
摘要： A photographic apparatus comprising an objective including a front lens unit for forming an image of an object and a rear lens unit, a beam splitter arranged between the front and rear lens units for splitting an optical path, a viewfinder including a roof type prism and an eyepiece and arranged on the optical path split by the beam splitter so as to observe the object image by the front lens unit, and an image receiver on which an object image of different magnification is formed by the objective.
摘要翻译：一种摄影装置，包括：物镜，其包括用于形成物体的图像的前透镜单元和后透镜单元;布置在用于分割光路的前透镜单元和后透镜单元之间的分束器，包括屋顶型棱镜的取景器和目镜，并配置在由分束器分割的光路上，以便通过前透镜单元观察物体图像，以及图像接收器，通过该目标形成不同倍率的物体图像。

45. 发明授权

US4707103A Optical system of variable magnification 失效
标题翻译：可变放大倍数的光学系统
公开(公告)号：US4707103A
公开(公告)日：1987-11-17
申请号：US828959
申请日：1986-02-12
申请人： Keiji Ikemori , Takeshi Koyama
发明人： Keiji Ikemori , Takeshi Koyama
IPC分类号： G02B15/177 , G02B23/14 , G03B3/00 , G03B13/08
CPC分类号： G02B15/177 , G02B23/145
摘要： An optical system of variable magnification including an image forming lens system having at least one optical member axially movable for varying the image magnification, and a light beam splitting device in the optical path of the lens system, the optical member and the splitting device being arranged to move simultaneously.
摘要翻译：一种可变倍率的光学系统，包括具有至少一个光学构件的成像透镜系统，所述成像透镜系统具有轴向可移动以改变图像放大率;以及光束分离装置，在所述透镜系统的光路中，所述光学构件和所述分离装置被布置同时移动

46. 发明授权

US4456340A Optical system for focal length conversion 失效
标题翻译：用于焦距转换的光学系统
公开(公告)号：US4456340A
公开(公告)日：1984-06-26
申请号：US319589
申请日：1981-11-09
申请人： Keiji Ikemori
发明人： Keiji Ikemori
IPC分类号： G02B15/12 , G02B15/14
CPC分类号： G02B15/12 , G02B15/14
摘要： An optical system has a convertible focal length. A positive lens system having a positive refractive power is supplemented by a negative lens system having a negative refractive power between said positive lens system and an image plane to convert the focal length. The front principal point of the aforesaid negative lens system thereby assumes a position rearwardly of the rear principal point thereof, and is made to lie rearwardly of the rear principal point of the aforesaid positive lens system. The overall length of the aforesaid negative lens system is longer than 0.1 times but shorter than 0.5 times the back focus of the aforesaid positive lens system.
摘要翻译：光学系统具有可转换焦距。具有正折光力的正透镜系统由在所述正透镜系统和像平面之间具有负折光力的负透镜系统补充以转换焦距。因此，前述负透镜系统的前主要点位于其后方主点后方的位置，并使其位于上述正透镜系统的后方主点的后方。上述负透镜系统的总长度大于上述正透镜系统的后焦距的0.1倍但小于0.5倍。

47. 发明授权

US4437746A Photo metering device for single lens reflex camera 失效
标题翻译：单反相机照片测光装置
公开(公告)号：US4437746A
公开(公告)日：1984-03-20
申请号：US361838
申请日：1982-03-25
申请人： Keiji Ikemori
发明人： Keiji Ikemori
IPC分类号： G02B5/00 , G03B7/099 , G03B7/0997 , G03B7/00
CPC分类号： G03B7/09972
摘要： In the disclosed device, light radiated from an object image formed on the focal plane by an objective lens is directed to a photo-cell using a condenser lens. The condenser lens has reflection areas formed in portions of the surfaces thereof. According to an embodiment, the surface closer to the oncoming light is mirrored at the central portion and the more remote surface is mirrored marginally. In another embodiment, the more remote area is recessed to receive the photo-cell.
摘要翻译：在所公开的装置中，通过物镜从形成在焦平面上的物体图像发出的光被引导到使用聚光透镜的光电池。聚光透镜具有形成在其表面的一部分中的反射区域。根据一个实施例，靠近迎面而来的光的表面在中心部分被镜像，并且较远的表面被微小地镜像。在另一个实施例中，更偏远的区域被凹入以接收光电池。

48. 发明授权

US4400064A Zoom lens 失效
标题翻译：变焦镜头
公开(公告)号：US4400064A
公开(公告)日：1983-08-23
申请号：US281554
申请日：1981-07-08
申请人： Keiji Ikemori , Akira Tajima
发明人： Keiji Ikemori , Akira Tajima
IPC分类号： G02B13/04 , G02B13/18 , G02B15/14 , G02B15/16 , G02B3/04
CPC分类号： G02B13/18 , G02B15/14
摘要： A zoom lens comprising, from front to rear, a first lens group of negative power, and a second lens group of positive power with the axial air separation therebetween being variable to effect zooming. The first lens group includes at least one negative lens element and one positive lens element, and the negative lens element has its one surface configured to an aspheric shape, and is made of a plastic material. The bulk and size of the lens system is minimized even though the aberrations are well corrected.
摘要翻译：一种变焦透镜，包括从前到后的负功率的第一透镜组和具有其间的轴向空气间隔的正功率的第二透镜组，其变化以实现变焦。第一透镜组包括至少一个负透镜元件和一个正透镜元件，并且负透镜元件的一个表面构造为非球面形状，并且由塑料材料制成。即使像差很好地校正，镜头系统的体积和尺寸也被最小化。

49. 发明授权

US4390248A Wide angle zoom lens 失效
标题翻译：广角变焦镜头
公开(公告)号：US4390248A
公开(公告)日：1983-06-28
申请号：US188560
申请日：1980-09-18
申请人： Keiji Ikemori
发明人： Keiji Ikemori
IPC分类号： G02B13/12 , G02B15/16 , G02B15/18
CPC分类号： G02B15/16 , G02B13/12
摘要： In the wide angle zoom lens disclosed, a first lens group of positive refractive power is stationary during zooming, but movable for focusing and consists of four elements forming three members, namely from front to rear, a cemented lens and two positive lenses, all three in meniscus form with convex curvature toward the front, and with the cemented lens being almost afocal with its cemented surface divergent and convex toward the front. A second lens group of negative refractive power is movable for changing the magnification and consists of four elements, namely, from front to rear, two negative meniscus lenses of forward convixity, a bi-concave negative lens and a positive lens, with the bi-concave negative lens and the positive lens defining an air space having a converging effect. A third lens group is movable for maintaining a constant image plane as the second group moves to effect a change in magnification, and a fourth lens group positioned in the rear of the third group is stationary during zooming.
摘要翻译：在所公开的广角变焦镜头中，正折射力的第一透镜组在变焦期间是静止的，但是可移动用于聚焦，并且由四个元件组成，即从前到后，形成胶合透镜和两个正透镜的三个元件在弯液面形式具有朝向前方的凸曲率，并且胶合透镜几乎无焦点，其胶结表面发散并朝向前方凸出。具有负屈光力的第二透镜组可移动以改变放大率，并且由四个元件组成，即从前到后，两个正向折射的负弯月形透镜，双凹负透镜和正透镜，凹负透镜和正透镜限定具有会聚效果的空气空间。当第二组移动以实现放大率的变化时，第三透镜组可移动以保持恒定的图像平面，并且位于第三组的后部的第四透镜组在变焦期间是静止的。

50. 发明授权

US4232942A Optically compensated zoom lens 失效
标题翻译：光学补偿变焦镜头
公开(公告)号：US4232942A
公开(公告)日：1980-11-11
申请号：US906630
申请日：1978-05-16
申请人： Keiji Ikemori
发明人： Keiji Ikemori
IPC分类号： G02B15/15 , G02B15/173 , G02B15/14
CPC分类号： G02B15/173
摘要： An optically compensated zoom lens particularly suited for use in a still camera. This lens system comprises positive first, negative second and positive third lens groups counting from the front of which the first and third ones are axially movable in fixedly spaced relation to each other during zooming, while the second one remains stationary together with a relay lens group that follows the third lens group, the relay lens group consisting of a negative lens with its front surface of strong divergence, and bi-convex, bi-concave and bi-convex lenses. In said first and said second lens groups, there are provided individual divergent contact surfaces configured in opposite direction of curvature to each other so as to facilitate good correction of astigmatism and distortion. For high grade imaging performance throughout the entire range of magnification, the shift of focal plane with zooming is limited within the depth of focus by fulfilling the following relationships for the three lens groups in the zoom portion:(1) 0.97 Ft
摘要翻译：一种特别适用于静态照相机的光学补偿变焦镜头。该透镜系统包括正的第一，负第二和正的第三透镜组，从其前面开始，第一和第三透镜组的第一和第三透镜组的前面可在变焦期间彼此以固定间隔的关系轴向移动，而第二透镜组与中继透镜组一起保持静止在第三透镜组之后，由具有强散射的前表面的负透镜和双凸，双凹和双凸透镜组成的中继透镜组。在所述第一透镜组和所述第二透镜组中，设置有彼此相反曲率配置的各个发散接触表面，以便于散光和变形的良好校正。对于在整个放大倍数范围内的高等级成像性能，通过满足缩放部分中的三个透镜组的以下关系，在焦深范围内，焦平面的移动受到限制：（1）0.97 Ft

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