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51. 发明授权

US4784479A Varifocal optical system 失效
标题翻译：变焦光学系统
公开(公告)号：US4784479A
公开(公告)日：1988-11-15
申请号：US737342
申请日：1985-05-23
申请人： Keiji Ikemori
发明人： Keiji Ikemori
IPC分类号： G02B3/00 , G02B3/14 , G02B15/02 , G02B15/14 , G02B15/00
CPC分类号： G02B3/14 , G02B15/02 , G02B15/14 , G02B3/00
摘要： A varifocal optical system having at least two lens units A and B, the lens unit A being axially moved to vary the magnifying power, and, while it is moving, the refractive power of the lens unit B being continuously varied to compensate for the displacement of the position of the image surface caused by the variation of the magnifying power of the lens unit A, wherein variation of the refractive power of the lens unit B is made so as to maintain the constant position of a front principal point of the lens unit B when the lens unit A is in front of the lens unit B, or a rear principal point of the lens unit B when the lens unit A is at the rear of the lens unit B, relative to the image plane of the entire system.
摘要翻译：一种具有至少两个透镜单元A和B的变焦光学系统，透镜单元A被轴向移动以改变放大倍率，并且在移动时，透镜单元B的屈光力被连续变化以补偿位移由透镜单元A的放大倍率的变化引起的图像表面的位置的变化，使得透镜单元B的折射力的变化保持透镜单元的前主点的恒定位置 B，当透镜单元A位于透镜单元B的后部时，透镜单元B位于透镜单元B的前方，或者透镜单元B的后方主要点，相对于整个系统的像面。

52. 发明授权

US4702567A Zoom lens 失效
标题翻译：变焦镜头
公开(公告)号：US4702567A
公开(公告)日：1987-10-27
申请号：US17025
申请日：1987-02-18
申请人： Masatake Kato , Keiji Ikemori , Tsunefumi Tanaka , Kazuo Tanaka
发明人： Masatake Kato , Keiji Ikemori , Tsunefumi Tanaka , Kazuo Tanaka
IPC分类号： G02B15/173 , G02B15/18
CPC分类号： G02B15/173
摘要： A zoom lens having a component V which has at least one group of lens elements axially movable mainly for changing image magnification, a component C which has at least one group of lens elements axially movable for compensating for the image shift resulting from the change of image magnification to maintain the constant position of the image plane, and a compound component F positioned on the image side of either, or both, of said component V and said component C to be movable with zooming, and having a plurality of lens groups contributing to a small overall refractive power, whereby the focusing provision is made in at least one of the groups in said compound component F.
摘要翻译：具有分量V的变焦透镜具有至少一组主要用于改变图像放大率的可轴向移动的透镜元件组; C组件，其具有至少一组轴向可移动的透镜元件，用于补偿由图像变化引起的图像偏移以保持图像平面的恒定位置，以及位于所述部件V和所述部件C中的任意一方或两者的图像侧上的复合部件F可以变焦地移动，并且具有多个透镜组，小的总屈光力，由此在所述化合物组分F中的至少一个基团中进行聚焦。

53. 发明授权

US4687302A Zoom lens 失效
标题翻译：变焦镜头
公开(公告)号：US4687302A
公开(公告)日：1987-08-18
申请号：US903901
申请日：1986-09-04
申请人： Keiji Ikemori , Tsunefumi Tanaka , Masatake Kato
发明人： Keiji Ikemori , Tsunefumi Tanaka , Masatake Kato
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 negative first component, a positive second component, a positive or negative third component and a positive fourth component. To effect zooming, the first, second and third components are made to axially move in differential relation to each other. This makes it possible to achieve a minimization of the bulk and size of the entire system and a valuable increase in the angle of view field for the wide angle setting.
摘要翻译：一种变焦透镜，包括从前到后的负的第一分量，正的第二分量，正或负的第三分量和正的第四分量。为了实现变焦，使第一，第二和第三分量彼此以差分关系轴向移动。这使得可以实现整个系统的体积和尺寸的最小化以及广角设置的视野范围的有价值的增加。

54. 发明授权

US4647160A Small-sized wide angle zoom objective 失效
标题翻译：小尺寸广角变焦镜头
公开(公告)号：US4647160A
公开(公告)日：1987-03-03
申请号：US733856
申请日：1985-05-13
申请人： Keiji Ikemori
发明人： Keiji Ikemori
IPC分类号： G02B15/177 , G02B15/14
CPC分类号： G02B15/177
摘要： A small-sized wide angle zoom objective comprising, from front to rear, a 1st lens unit of negative power, a 2nd lens unit of positive power and a 3rd lens unit, wherein the 1st and 2nd units are made axially movable to effect zooming.
摘要翻译：一种小型广角变焦目标，其从前到后包括负功率的第一透镜单元，正光焦度的第二透镜单元和第三透镜单元，其中，第一和第二单元被轴向移动以实现变焦。

55. 发明授权

US4630899A Zoom lens having movable diaphragm 失效
标题翻译：具有可移动隔膜的变焦镜头
公开(公告)号：US4630899A
公开(公告)日：1986-12-23
申请号：US532577
申请日：1983-09-15
申请人： Masatake Kato , Keiji Ikemori
发明人： Masatake Kato , Keiji Ikemori
IPC分类号： G02B15/15 , G02B15/173 , G02B15/14
CPC分类号： G02B15/173
摘要： In the disclosed zoom lens, a varifocal lens system includes a positive first component at the object end of the system and is movable closer to the object in a telephoto position than in a wide angle position. A diaphragm on the image end of the varifocal lens system is movable during zooming and the location of the diaphragm in the telephoto position is closer to the object than in the wide angle position.
摘要翻译：在所公开的变焦透镜中，变焦透镜系统包括在系统的物体端处的正的第一分量，并且在远摄位置比在广角位置更靠近物体移动。变焦透镜系统的图像端上的光阑在变焦期间是可移动的，并且在望远位置处的光阑的位置比在广角位置更接近物体。

56. 发明授权

US4509833A High variable magnification wide angle zoom lens 失效
标题翻译：高可变倍率广角变焦镜头
公开(公告)号：US4509833A
公开(公告)日：1985-04-09
申请号：US435560
申请日：1982-10-21
申请人： Keiji Ikemori
发明人： Keiji Ikemori
IPC分类号： G02B15/177 , G02B9/64 , G02B15/14
CPC分类号： G02B15/177
摘要： A wide angle zoom lens with an increased varifocal range comprises, from front to rear, a divergent 1st lens group, a convergent 2nd lens group and a divergent 3rd lens group, the aforesaid three lens groups being axially movable to effect zooming, and the focal lengths and the directions of movement of the 2nd and 3rd lens groups being properly set forth, to thereby achieve a good aberration correction.
摘要翻译：具有增加的变焦范围的广角变焦镜头包括从前到后的发散的第一透镜组，会聚的第二透镜组和发散的第三透镜组，上述三个透镜组可轴向移动以实现变焦，并且焦点长度和第二和第三透镜组的移动方向被正确地列出，从而实现良好的像差校正。

57. 发明授权

US4468099A Telephoto objective 失效
标题翻译：远摄目标
公开(公告)号：US4468099A
公开(公告)日：1984-08-28
申请号：US308565
申请日：1981-10-05
申请人： Keiji Ikemori
发明人： Keiji Ikemori
IPC分类号： G02B13/02 , G02B9/64
CPC分类号： G02B13/02
摘要： Disclosed is a compact high-performance telephoto objective having two groups of which the front group is of positive power and the rear group is of negative power. The front lens group having, from front to rear, three lenses of positive power and one lens of negative power, and the rear lens group having, from front to rear, a lens of positive power and a cemented lens of negative power followed by at least one cemented lens of negative power.
摘要翻译：公开了一种紧凑型高性能长焦物镜，其具有两组，前组具有正功率，后组具有负功率。前透镜组从前到后具有三个正功率透镜和一个负功率透镜，并且后透镜组从前到后具有正光焦度透镜和负功率的胶合透镜，之后是至少一个负功率的胶合透镜。

58. 发明授权

US4466707A Variable magnification lens system 失效
标题翻译：可变放大镜系统
公开(公告)号：US4466707A
公开(公告)日：1984-08-21
申请号：US244780
申请日：1981-03-17
申请人： Keiji Ikemori , Kazuo Tanaka
发明人： Keiji Ikemori , Kazuo Tanaka
IPC分类号： G02B15/02 , G02B15/04 , G02B15/14
CPC分类号： G02B15/14 , G02B15/02 , G02B15/04
摘要： A compact variable magnification objective lens system with interchangeable lens components comprising, from front to rear, a first lens component of positive power, a second lens component of negative power and a third lens component of positive power. The focal length of the entire system can be changed by interchanging the second lens component by another lens component having a different refractive power from that of the second lens component and by shifting the first lens component simultaneously.
摘要翻译：一种具有可互换透镜部件的紧凑型可变倍率物镜系统，包括从前到后的正功率的第一透镜部件，负功率的第二透镜部件和正光焦度的第三透镜部件。通过将第二透镜部件与具有与第二透镜部件的折射力不同的折射力的另一透镜部件并且同时移动第一透镜部件来交换整个系统的焦距。

59. 发明授权

US4432615A Zoom lens 失效
标题翻译：变焦镜头
公开(公告)号：US4432615A
公开(公告)日：1984-02-21
申请号：US274665
申请日：1981-06-17
申请人： Keiji Ikemori
发明人： Keiji Ikemori
IPC分类号： G02B15/167 , G02B15/14 , G02B15/16 , G02B15/22 , G03B9/02 , G02B7/11
CPC分类号： G02B15/22 , G02B15/14 , G02B15/16
摘要： A zoom lens includes a number of lens groups in which the first lens group, counting from the front, is movably adjustable for focusing. A stop is arranged at the rear of the zooming lens groups for movement forwardly together with the first lens group upon focusing down to shorter object distances. Accordingly, added compactness of the entire lens system is achieved, while high grade imagery is preserved throughout the extended focusing range.
摘要翻译：变焦透镜包括多个透镜组，其中从前面计数的第一透镜组可移动地可调节用于聚焦。缩放透镜组的后部设置有一个挡块，用于在聚焦到较短的物体距离时与第一透镜组一起向前移动。因此，实现了整个透镜系统的增加的紧凑性，而在整个扩展聚焦范围内保留了高等级的图像。

60. 发明授权

US4422734A Photographic lens system having an auxiliary lens 失效
标题翻译：具有辅助透镜的摄影透镜系统
公开(公告)号：US4422734A
公开(公告)日：1983-12-27
申请号：US219977
申请日：1980-12-24
申请人： Kazuo Tanaka , Keiji Ikemori
发明人： Kazuo Tanaka , Keiji Ikemori
IPC分类号： G02B15/12 , G02B9/62 , G02B9/64 , G02B15/10
CPC分类号： G02B9/62 , G02B9/64
摘要： Disclosed is a lens system having a principal lens, a photographic film and an auxiliary lens which can be mounted between the principal lens and the photographic lens and has a negative refractive power. The auxiliary lens consisting of a first positive lens having a front surface with large radius and a convex rear surface at the image side, a second bi-concave lens and a third positive lens having a convex front surface at the object side and a rear surface with large radius in sequence from the object side, while the axial distance between the first positive lens and the second bi-concave lens is larger than that between the second bi-concave lens and the third positive lens and the second bi-concave lens and the third positive lens have a negative composed refraction power.
摘要翻译：公开了一种透镜系统，其具有可以安装在主透镜和摄影透镜之间并具有负折光力的主透镜，照相胶片和辅助透镜。辅助透镜由具有大半径的前表面和图像侧的凸表面的第一正透镜，第二双凹透镜和在物侧具有凸前表面的第三正透镜组成，从物体侧起依次具有大的半径，而第一正透镜和第二双凹透镜之间的轴向距离大于第二双凹透镜与第三正透镜和第二双凹透镜之间的轴向距离，以及第三正透镜具有负折射率。

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