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公开(公告)号：US20180224641A1
公开(公告)日：2018-08-09
申请号：US15945661
申请日：2018-04-04
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.
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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
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。
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公开(公告)号：US20120194730A1
公开(公告)日：2012-08-02
申请号：US13357468
申请日：2012-01-24
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。
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公开(公告)号：US07405889B2
公开(公告)日：2008-07-29
申请号：US11210809
申请日：2005-08-25
CPC分类号： G02B15/177
摘要： The invention relates to an optical system that is capable of providing a zoom lens having improved image-formation capability with a reduced number of lenses, and fabricating a slim yet high-performance digital or video camera. The optical system comprises a cemented lens having a cementing surface on its optical axis. Air contact surfaces on the light ray entrance and exit sides of the cemented lens G2 are aspheric, and at least one cementing surface in the cemented lens G2 satisfies condition (1). 6.4
摘要翻译： 本发明涉及一种光学系统，其能够提供具有减少的透镜数量的改进的图像形成能力的变焦透镜，以及制造纤细而高性能的数字或摄像机。 光学系统包括在其光轴上具有固化表面的胶合透镜。 胶合透镜G 2的光线入射侧和出射侧的空气接触表面是非球面的，并且胶合透镜G 2中的至少一个胶结表面满足条件（1）。 <？in-line-formula description =“In-line Formulas”end =“lead”？> 6.4 <|（r / R）| （1）<？in-line-formula description =“In-line Formulas”end =“tail”？>这里r是固井表面的轴向曲率半径，R是固井表面的最大直径。
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公开(公告)号：US07339744B2
公开(公告)日：2008-03-04
申请号：US11357338
申请日：2006-02-21
IPC分类号： G02B15/14
CPC分类号： G02B15/177 , G02B5/04 , G02B23/145
摘要： An electronic imaging apparatus includes a zoom optical system having, in order from the object side, a first lens unit with negative power and a second lens unit with positive power, in which lens components having refracting power in the first lens unit are only a single biconcave negative lens element located at the most object-side position and a positive lens component located at the most image-side position; an electronic image sensor placed on the image side of the zoom optical system; and an image processing section electrically processing image data obtained by the electronic image sensor to change the shape thereof. The zoom lens system satisfies the following conditions in focusing of a nearly infinite object point: 0.85
摘要翻译： 一种电子成像装置，包括：变焦光学系统，其具有从物体侧起的具有负电源的第一透镜单元和具有正光焦度的第二透镜单元，其中在第一透镜单元中具有折射能力的透镜部件仅为单个 位于最物体侧位置的双凹面负透镜元件和位于最图像侧位置的正透镜部件; 放置在变焦光学系统的像侧的电子图像传感器; 以及电子处理由电子图像传感器获得的图像数据以改变其形状的图像处理部分。 变焦透镜系统在几乎无限的对象点的聚焦中满足以下条件：<？in-line-formula description =“In-line Formulas”end =“lead”？> 0.85 <| Y <07 ＆lt;＆lt;＆lt;＆gt;＆gt;＆lt;＆lt;＆gt;＆lt;＆lt;＆lt;＆gt; ？in-line-formula description =“In-line Formulas”end =“lead”？> 0.75 <| Y /（f 10w ）| <0.93 <？in-line-formula description =“In-line Formulas”end =“tail”？>其中f
是整个变焦光学的焦距 系统处于广角位置，y <10>是从电子图像传感器的有效成像表面的中心到距离中心最远的点的距离，y < 是由0.7×10 表示的图像高度，ω-07w是由对应于图像点的对象点的方向所形成的角度，连接有效的 电子图像传感器的成像表面在wi 去角位置和图像高度y <07>的位置与光轴。 -
公开(公告)号：US20060221212A1
公开(公告)日：2006-10-05
申请号：US11357338
申请日：2006-02-21
IPC分类号： H04N5/262
CPC分类号： G02B15/177 , G02B5/04 , G02B23/145
摘要： An electronic imaging apparatus includes a zoom optical system having, in order from the object side, a first lens unit with negative power and a second lens unit with positive power, in which lens components having refracting power in the first lens unit are only a single biconcave negative lens element located at the most object-side position and a positive lens component located at the most image-side position; an electronic image sensor placed on the image side of the zoom optical system; and an image processing section electrically processing image data obtained by the electronic image sensor to change the shape thereof. The zoom lens system satisfies the following conditions in focusing of a nearly infinite object point: 0.85
摘要翻译： 一种电子成像装置，包括：变焦光学系统，其具有从物体侧起的具有负电源的第一透镜单元和具有正光焦度的第二透镜单元，其中在第一透镜单元中具有折射能力的透镜部件仅为单个 位于最物体侧位置的双凹面负透镜元件和位于最图像侧位置的正透镜部件; 放置在变焦光学系统的像侧的电子图像传感器; 以及电子处理由电子图像传感器获得的图像数据以改变其形状的图像处理部分。 变焦透镜系统在几乎无限的对象点的聚焦中满足以下条件：<？in-line-formula description =“In-line Formulas”end =“lead”？> 0.85 <| Y <07 ＆lt;＆lt;＆lt;＆gt;＆gt;＆lt;＆lt;＆gt;＆lt;＆lt;＆lt;＆gt; ？in-line-formula description =“In-line Formulas”end =“lead”？> 0.75 <| Y /（f 10w ）| <0.93 <？in-line-formula description =“In-line Formulas”end =“tail”？>其中f
是整个变焦光学的焦距 系统处于广角位置，y <10>是从电子图像传感器的有效成像表面的中心到距离中心最远的点的距离，y < 是由0.7×10 表示的图像高度，ω-07w是由对应于图像点的对象点的方向所形成的角度，连接有效的 电子图像传感器的成像表面 广角位置和图像高度y <07>的位置与光轴。 -
公开(公告)号：US20060056067A1
公开(公告)日：2006-03-16
申请号：US11210809
申请日：2005-08-25
IPC分类号： G02B9/00
CPC分类号： G02B15/177
摘要： The invention relates to an optical system that is capable of providing a zoom lens having improved image-formation capability with a reduced number of lenses, and fabricating a slim yet high-performance digital or video camera. The optical system comprises a cemented lens having a cementing surface on its optical axis. Air contact surfaces on the light ray entrance and exit sides of the cemented lens G2 are aspheric, and at least one cementing surface in the cemented lens G2 satisfies condition (1). 6.4
摘要翻译： 本发明涉及一种光学系统，其能够提供具有减少的透镜数量的改进的图像形成能力的变焦透镜，以及制造纤细而高性能的数字或摄像机。 光学系统包括在其光轴上具有固化表面的胶合透镜。 胶合透镜G 2的光线入射侧和出射侧的空气接触表面是非球面的，并且胶合透镜G 2中的至少一个胶结表面满足条件
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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
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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
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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20.发明授权公开(公告)号：US08248716B2
公开(公告)日：2012-08-21
申请号：US12925470
申请日：2010-10-21
IPC分类号： G02B9/06
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。
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