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11. 发明申请

US20110235191A1 Imaging optical system, and imaging apparatus incorporating the same 有权
标题翻译：成像光学系统和包含该成像装置的成像装置
公开(公告)号：US20110235191A1
公开(公告)日：2011-09-29
申请号：US12925470
申请日：2010-10-21
申请人： Kazuteru Kawamura , Keitaro Yokoyama
发明人： Kazuteru Kawamura , Keitaro Yokoyama
IPC分类号： G02B13/18 , G02B9/04
CPC分类号： G02B7/04 , G02B9/04
摘要： An imaging optical system has, in order from the object side to the image side thereof, a front lens group, an aperture stop, and a rear lens group. A lens located closest to object side in said front lens group always remains fixed in position, with satisfaction of the following conditions (1) and (2): 1.15≦fb/IHω≦1.7 (1) −4.0≦fn/f≦−1.3 (2) where f is a focal length of the whole imaging optical system, fn is a focal length of a first negative lens in said front lens group, fb is a back focus of the imaging optical system upon focusing on an object point at infinity, and IHω is a distance from an optical axis of a position where a chief ray from a maximum incident half angle of view (ω) upon focusing on an object point at infinity is imaged at the imaging plane.
摘要翻译：成像光学系统从物体侧到其像侧依次具有前透镜组，孔径光阑和后透镜组。满足以下条件（1）和（2）：1.15＆nlE; fb /IHω＆nlE; 1.7（1）-4.0＆nlE; fn / f＆nlE中的最靠近所述前透镜组中物体侧的透镜始终保持固定 ; -1.3（2）其中f是整个成像光学系统的焦距，fn是所述前透镜组中的第一负透镜的焦距，fb是在聚焦在物体上时成像光学系统的后焦点指向无限远，并且IHω是在聚焦在无限远物体上的来自最大入射半视角（ω）的主光线在成像平面成像的位置处的光轴的距离。

12. 发明授权

US07418199B2 Imaging apparatus 有权
标题翻译：成像设备
公开(公告)号：US07418199B2
公开(公告)日：2008-08-26
申请号：US11177277
申请日：2005-07-11
申请人： Kazuteru Kawamura , Kazuya Nishimura
发明人： Kazuteru Kawamura , Kazuya Nishimura
IPC分类号： G03B17/00 , H04N5/262 , H04N5/255 , G02B13/16 , G02B15/14
CPC分类号： G03B17/00
摘要： An imaging apparatus including a first lens unit with positive power in which the most object-side surface is concave and the most image-side surface is convex, an aperture stop, a second lens unit with positive power in which the most object-side surface is convex and the most image-side surface is concave, and a third lens unit with positive power; and an image sensor. Air spacing between the second lens unit and the third lens unit assumes the shape of a biconvex air lens. The imaging apparatus satisfies the following condition: 1.4≦|r 2R|/IH≦15.0 where IH is the maximum photographic image height, which is a half of the diagonal length, in an effective imaging area, of the image sensor, and r 2R is the radius of curvature, measured along the optical axis, of the most image-side surface of the second lens unit.
摘要翻译：一种成像装置，包括具有正电力的第一透镜单元，其中最物体侧表面是凹形的并且最像图像侧表面是凸形的;孔径光阑;具有正光焦度的第二透镜单元，其中最物体侧表面是凸的，并且最大的图像侧表面是凹的，以及具有正功率的第三透镜单元; 和图像传感器。第二透镜单元和第三透镜单元之间的空气间隔呈双凸透镜的形状。成像装置满足以下条件：<？in-line-formula description =“In-line formula”end =“lead”？> 1.4 <= | R2R | / IH <= 15.0 <？in-line-formula description = “直线公式”end =“tail”？>其中IH是图像传感器的有效成像区域中最大摄影图像高度，它是对角线长度的一半，r 2R是曲率半径，沿着光轴测量第二透镜单元的最大像侧表面。

13. 发明申请

US20060024038A1 Imaging apparatus 有权
标题翻译：成像设备
公开(公告)号：US20060024038A1
公开(公告)日：2006-02-02
申请号：US11177277
申请日：2005-07-11
申请人： Kazuteru Kawamura , Kazuya Nishimura
发明人： Kazuteru Kawamura , Kazuya Nishimura
IPC分类号： G03B17/00
CPC分类号： G03B17/00
摘要： An imaging apparatus has a photographing optical system including, in order form the object side, a first lens unit with positive power in which the most object-side surface is concave and the most image-side surface is convex, an aperture stop, a second lens unit with positive power in which the most object-side surface is convex and the most image-side surface is concave, and a third lens unit with positive power; and an image sensor converting an optical image formed by the photographing optical system into an electric signal. Air spacing between the second lens unit and the third lens unit assumes the shape of a biconvex air lens. The imaging apparatus satisfies the following condition: 1.4≦|r2R/IH≦15.0 where IH is the maximum photographic image height, which is a half of the diagonal length, in an effective imaging area, of the image sensor, and r 2R is the radius of curvature, measured along the optical axis, of the most image-side surface of the second lens unit.
摘要翻译：一种成像装置具有拍摄光学系统，其中依次形成物体侧，具有最大物体侧表面为凹面且最多像侧表面为凸的正光焦度的第一透镜单元，孔径光阑，第二透镜单元具有最大物体侧表面是凸的并且最多的图像侧表面是凹的正电力的透镜单元和具有正功率的第三透镜单元; 以及将由拍摄光学系统形成的光学图像转换为电信号的图像传感器。第二透镜单元和第三透镜单元之间的空气间隔呈双凸透镜的形状。成像装置满足以下条件：<？in-line-formula description =“In-line Formulas”end =“lead”？> 1.4 <= | r2R / IH <= 15.0 <？in-line-formula description =“ 其中IH是图像传感器的有效成像区域中的对角线长度的一半的最大摄影图像高度，r 2R是曲率半径，沿着光轴测量第二透镜单元的最大像侧表面。

14. 发明申请

US20050254139A1 Image-formation lens, and imaging system using the same 有权
标题翻译：图像形成透镜和使用其的成像系统
公开(公告)号：US20050254139A1
公开(公告)日：2005-11-17
申请号：US11130176
申请日：2005-05-17
申请人： Toshio Takahashi , Kazuteru Kawamura , Masashi Hankawa , Eiji Shirota
发明人： Toshio Takahashi , Kazuteru Kawamura , Masashi Hankawa , Eiji Shirota
IPC分类号： G02B15/20 , G02B15/14
CPC分类号： G02B15/14
摘要： The invention relates to an image-formation lens system well balanced among cost reductions, size reductions and performance improvements and an imaging system incorporating that lens system. The image-formation lens system in the imaging system is a zoom lens system that comprises at least three lens groups including a first lens group G1 of positive power, a second lens group G2 of positive power and a third lens group G3 of negative power, wherein zooming is carried out by varying the spacing between adjacent lens groups. The zoom lens system comprises a total of up to 8 lenses, and satisfies the following conditions: 0.07
摘要翻译：本发明涉及在成本降低，尺寸减小和性能改进之间良好平衡的图像形成透镜系统以及并入该透镜系统的成像系统。成像系统中的图像形成透镜系统是变焦透镜系统，其包括至少三个透镜组，其包括正功率的第一透镜组G 1，正光焦度的第二透镜组G 2和第三透镜组G 3 负功率，其中通过改变相邻透镜组之间的间距来执行变焦。变焦透镜系统包括总共多达8个透镜，并且满足以下条件：<？in-line-formula description =“In-line formula”end =“lead”？> 0.07 / IH <0.23（1）<？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead “？> 1.8 <？in-line-formula description =”In-line Formulas“ end =“lead”？> - 8％ <8％（3）<？in-line-formula description =“In-line Formulas”end =“tail”？> 在远摄端的变焦透镜系统的d行和g行之间的后焦点位置之间的差异是IH，在图像平面处的最大图像高度，WideFno和TeleFno是F - 分别在广角端和远摄端的变焦透镜系统的d线处，并且DTL 是在28.0°的视角处的d线失真量广角端。

15. 发明授权

US5262897A Zoom lens system 失效
标题翻译：变焦镜头系统
公开(公告)号：US5262897A
公开(公告)日：1993-11-16
申请号：US806335
申请日：1991-12-13
申请人： Kazuteru Kawamura
发明人： Kazuteru Kawamura
IPC分类号： G02B15/177 , G02B23/14 , G02B15/14 , G02B13/18
CPC分类号： G02B15/177 , G02B23/145
摘要： This invention relates to a zoom lens system that is an object lens for taking images which is independent of an objective lens for a viewfinder, said zoom lens system being less likely to vary in the total length by zooming in spite of having a high zoom ratio and being reduced in the total length under every condition from the wide angle to telephoto settings. To achieve this, the present zoom lens system is made up of a first lens unit having a negative refractive power, a second lens unit having a positive refractive power and a third lens unit having a positive refractive power. In zooming from the wide angle to telephoto end the spaces between the respective lens units are variable, and the present lens system satisfies the following condition:f.sub.B
摘要翻译：本发明涉及一种变焦透镜系统，其是用于拍摄独立于取景器的物镜的图像的物镜，所述变焦透镜系统尽可能通过变焦而不太可能在总长度上变化，尽管具有高变焦比并且在从广角到远摄设置的每个条件下的总长度减小。为了实现这一点，本变焦透镜系统由具有负折光力的第一透镜单元，具有正折光力的第二透镜单元和具有正折光力的第三透镜单元组成。在从广角到远摄端的放大中，各透镜单元之间的空间是可变的，并且本透镜系统满足以下条件：fB

16. 发明申请

US20180224641A1 ZOOM LENS AND IMAGE PICKUP APPARATUS USING THE SAME 审中-公开
公开(公告)号：US20180224641A1
公开(公告)日：2018-08-09
申请号：US15945661
申请日：2018-04-04
申请人： Kazuteru Kawamura , Akiko Naito , Keitaro Yokoyama , Toshio Takahashi
发明人： Kazuteru Kawamura , Akiko Naito , Keitaro Yokoyama , Toshio Takahashi
IPC分类号： G02B15/163 , G02B15/177 , H04N5/262 , G02B5/00 , G02B13/18 , G02B27/00 , H04N5/225 , G02B13/00 , G02B9/60 , G02B9/34 , G02B9/00 , G02B7/10 , G02B15/14 , G02B15/16 , G02B15/20 , G02B13/04
CPC分类号： G02B15/163 , G02B5/005 , G02B7/10 , G02B9/00 , G02B9/34 , G02B9/60 , G02B13/0015 , G02B13/004 , G02B13/0045 , G02B13/009 , G02B13/04 , G02B13/18 , G02B15/14 , G02B15/16 , G02B15/177 , G02B15/20 , G02B27/0025 , H04N5/2254 , H04N5/2628
摘要： A zoom lens comprises four lens unit, and at the time of zooming, each of a distance between a first positive lens unit and a first negative lens unit and a distance between a second negative lens unit and a second positive lens unit changes, and a distance between the first positive lens unit and the second negative lens unit widens more at the telephoto end than at the wide angle end, and the first positive lens unit includes an object-side sub-lens unit and an image-side sub-lens unit, and an aperture stop is disposed between the object-side sub-lens unit and the image-side sub-lens unit, and the first negative lens unit includes a negative lens and a positive lens, and a refracting surface nearest to an image in the first negative lens unit is concave toward the image side, and a refracting surface nearest to an object in the second positive lens unit is concave toward the object side, and a refracting surface nearest to the image in the second positive lens unit is convex toward the image side, and the zoom lens satisfies predetermined conditional expressions.

17. 发明申请

US20120212835A1 ZOOM LENS 有权
标题翻译：变焦镜头
公开(公告)号：US20120212835A1
公开(公告)日：2012-08-23
申请号：US13369777
申请日：2012-02-09
申请人： Hirohiko KIMATA , Yasuharu Yamada , Yasuji Ogata , Kazuteru Kawamura , Kenichi Nagasawa , Hiroshi Kodama , Toshio Takahashi , Kento Kokubu
发明人： Hirohiko KIMATA , Yasuharu Yamada , Yasuji Ogata , Kazuteru Kawamura , Kenichi Nagasawa , Hiroshi Kodama , Toshio Takahashi , Kento Kokubu
IPC分类号： G02B15/22 , G02B15/14
CPC分类号： G02B15/22 , G02B15/14 , G02B15/173 , G02B15/177
摘要： In a zoom lens of a fixed total length, at the time of changing the magnification from the wide-angle end toward the telephoto end, the first lens group is anchored while the second lens group is moved, and the third and fourth lens groups are moved so as to be located at the object side of the telephoto end relative to the wide-angle end, such that: the interval between the second and third lens groups is decreased at the telephoto end relative to the wide-angle end; the interval between the third and fourth lens groups is increased at the telephoto end relative to the wide-angle end; and the interval between the fourth and fifth lens groups is increased at the telephoto end relative to the wide-angle end, and at the time of focusing a near object point from a remote object point, the second lens group is moved.
摘要翻译：在固定的总长度的变焦透镜中，在从广角端向望远端改变放大倍数时，第一透镜组在第二透镜组移动的同时被固定，第三和第四透镜组是相对于广角端部位于长焦端的物体侧，使得第二透镜组和第三透镜组之间的间隔在望远端相对于广角端减小; 第三透镜组和第四透镜组之间的间隔在望远端相对于广角端增加; 并且第四透镜组和第五透镜组之间的间隔在望远端相对于广角端增加，并且在从远程对象点聚焦近物点时，第二透镜组移动。

18. 发明申请

US20120194730A1 ZOOM LENS AND IMAGE PICKUP APPARATUS HAVING THE SAME 有权
标题翻译：变焦镜头和图像拾取器具
公开(公告)号：US20120194730A1
公开(公告)日：2012-08-02
申请号：US13357468
申请日：2012-01-24
申请人： Masaru MOROOKA , Kazuteru Kawamura , Koki Hozumi , Hideyuki Nagaoka , Koji Nakagawa
发明人： Masaru MOROOKA , Kazuteru Kawamura , Koki Hozumi , Hideyuki Nagaoka , Koji Nakagawa
IPC分类号： H04N5/232 , G02B15/14
CPC分类号： G02B15/173 , G02B13/18 , H04N5/2254
摘要： A zoom lens includes a first lens group of positive refractive power; a second lens group of negative power; a third lens group of positive power; a fourth lens group of negative power, and a fifth lens group of positive power arranged from the object side to the image side. At activation of variable power from the wide angle end to the telescopic end, the first, third, fourth and fifth lens groups moves so as to get closer to the object side or the image side at the telescopic end than at the wide angle end; and a gap between the first lens group and the second lens group increases; a gap between the second lens group and the third lens group decreases; a gap between the third lens group and the forth lens group increases; and a gap between the forth lens group and the fifth lens group increases.
摘要翻译：变焦透镜包括正屈光力的第一透镜组; 负功率的第二透镜组; 第三透镜组正功率; 负功率的第四透镜组和从物体侧到像侧布置的正功率的第五透镜组。在从广角端到伸缩端的可变功率的激活中，第一，第三，第四和第五透镜组移动以便在伸缩端处比在广角端更靠近物体侧或像侧; 并且第一透镜组和第二透镜组之间的间隙增加; 第二透镜组和第三透镜组之间的间隙减小; 第三透镜组和第四透镜组之间的间隙增加; 并且第四透镜组和第五透镜组之间的间隙增加。

19. 发明授权

US06324018B1 Zoom lens system 有权
标题翻译：变焦镜头系统
公开(公告)号：US06324018B1
公开(公告)日：2001-11-27
申请号：US09532309
申请日：2000-03-22
申请人： Kazuteru Kawamura
发明人： Kazuteru Kawamura
IPC分类号： G02B1514
CPC分类号： G02B15/173
摘要： A zoom lens system comprising a first positive lens unit, a second negative lens unit, a third positive lens unit and a fourth positive lens unit: the second lens unit consisting of a first negative lens component, a second negative lens component, a third positive lens component and a fourth negative lens component; the third lens unit comprising a positive lens component disposed on the object side and a negative lens component disposed on the image side; and the fourth lens unit consisting of a front subunit and a rear subunit comprising a positive lens element, a negative lens element and an air lens which is formed between these lens elements so as to have a meniscus shape convex toward the image side, whereby the zoom lens system satisfies the following conditions (1) and (2): (1) 0.16
摘要翻译：一种变焦透镜系统，包括第一正透镜单元，第二负透镜单元，第三正透镜单元和第四正透镜单元：第二透镜单元包括第一负透镜组件，第二负透镜组件，第三正透镜单元透镜部件和第四负透镜部件; 第三透镜单元包括设置在物体侧的正透镜部件和设置在像侧的负透镜部件; 以及第四透镜单元，由前部亚单元和后部子单元组成，该正面单元和后部子单元包括形成在这些透镜元件之间的正透镜元件，负透镜元件和空气透镜，以便具有向图像侧凸出的弯月面形状，变焦透镜系统满足以下条件（1）和（2）：（1）0.16 <| f2 | / f1 <0.23（2）5

20. 发明授权

US5687413A Camera having short entire length 失效
标题翻译：相机具有短的全长
公开(公告)号：US5687413A
公开(公告)日：1997-11-11
申请号：US502594
申请日：1995-07-18
申请人： Kazuteru Kawamura
发明人： Kazuteru Kawamura
IPC分类号： G02B15/16 , G03B17/17 , G03B19/12 , G03B15/00
CPC分类号： G03B19/12 , G03B17/17
摘要： A camera includes a photographing optical system in which at least one of a plurality of reflecting surfaces is disposed between a plurality of lenses and the optical path is bent by two reflecting surfaces including the at least one reflecting surface so that an image of an object falls on a film surface substantially facing the object; and an observing optical system of real image type in which one of the two reflecting surfaces is configured as a movable or path splitting surface to conduct light outside the photographing optical system so that the image of the object can be observed. Thus, the height as well as the entire length of the camera is reduced and compact design of the camera can be attained.
摘要翻译：相机包括拍摄光学系统，其中多个反射表面中的至少一个设置在多个透镜之间，并且光路被包括至少一个反射表面的两个反射表面弯曲，使得物体的图像下降在基本上面向物体的膜表面上; 以及实景图像类型的观察光学系统，其中两个反射表面中的一个被配置为可移动或路径分割表面，以在拍摄光学系统之外传导光，使得可以观察对象的图像。因此，相机的高度以及整个长度被减小，并且可以实现照相机的紧凑设计。

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