公开(公告)号：US20100110566A1

公开(公告)日：2010-05-06

申请号：US12590332

申请日：2009-11-05

申请人： Tomohiro Saito

发明人： Tomohiro Saito

IPC分类号： G02B9/10

CPC分类号： G02B9/10 ,  G02B13/003

摘要： It is to provide an imaging lens that can improve optical performance while reducing size and weight.An imaging lens includes, in order from an object side to an image surface side: a diaphragm 2, a first lens 3 having a positive power whose convex surface faces the object side, and a second lens 4 that is a meniscus lens having a negative power whose convex surface faces the object side, wherein a condition expressed by the following expression is to be satisfied: 0.4≦r1/FL≦0.55 (where, r1: center radius curvature of the object side face 3a of the first lens, and FL: focal distance of the entire lens system).

摘要翻译： 它是提供一种能够在减小尺寸和重量的同时提高光学性能的成像透镜。 成像透镜从物体侧到像面侧依次包括：光圈2，具有凸面朝向物体侧的正光焦度的第一透镜3，以及具有负像的弯月形透镜的第二透镜4 其表面面向物体侧的功率，其中满足以下表达式的条件：0.4＆nlE; r1 / FL＆nlE; 0.55（其中，r1：第一透镜的物体侧面3a的中心半径曲率，以及 FL：整个镜头系统的焦距）。

公开(公告)号：US20100053777A1

公开(公告)日：2010-03-04

申请号：US12584194

申请日：2009-08-31

申请人： Tomohiro Saito

发明人： Tomohiro Saito

IPC分类号： G02B9/10

CPC分类号： G02B9/10 ,  G02B13/003

摘要： It is to provide an imaging lens that can improve optical performance while reducing size and weight.An imaging lens comprises, in order from an object side to an image surface side, a diaphragm 2, a first lens 3 that is a meniscus lens having a positive power whose convex surface faces the object side, and a second lens 4 that is a lens having a negative power whose concave surface faces the object side, wherein a condition expressed by the following expression is to be satisfied: 0.05≦r1/r2≦0.29 (where, r1: center radius curvature of the object side surface of the first lens 3, and r2: center radius curvature of the image surface side face of the first lens).

摘要翻译： 它是提供一种能够在减小尺寸和重量的同时提高光学性能的成像透镜。 成像透镜从物体侧到像面侧依次包括隔膜2，作为其凸面朝向物体侧的正光焦度的弯月形透镜的第一透镜3，以及第二透镜4， 具有凹面朝向物体侧的负功率的透镜，其中满足以下表达式的条件：0.05＆nlE; r1 / r2＆nlE; 0.29（其中，r1：第一像素的物体侧表面的中心半径曲率 透镜3和r2：第一透镜的图像表面侧面的中心半径曲率）。

公开(公告)号：US20090273845A1

公开(公告)日：2009-11-05

申请号：US12431180

申请日：2009-04-28

申请人： Satoshi Maetaki

发明人： Satoshi Maetaki

IPC分类号： G02B15/14 ,  G02B11/00 ,  G02B9/14 ,  G02B9/10 ,  G02B11/04

CPC分类号： G02B1/00 ,  G02B7/008 ,  G02B13/02 ,  G02B13/04 ,  G02B15/173

摘要： Provided is an optical system in which chromatic aberrations can be excellently corrected in spite of environmental changes, to thereby maintain high optical performance. The optical system includes: a plurality of optical elements each having refractive surfaces located in a light incident side and a light exit side; and an aperture stop. A focal length, an Abbe number of a material, and an extraordinary partial dispersion ratio of each of an l-th optical element and an r-th optical element which satisfy a condition related to the extraordinary partial dispersion ratio are suitably set.

摘要翻译： 提供了尽管环境变化可以良好地校正色像差的光学系统，从而保持高的光学性能。 光学系统包括：多个光学元件，各自具有位于光入射侧和光出射侧的折射表面; 和孔径光阑。 适当地设定满足与非常部分色散比有关的条件的第1个光学元件和第r个光学元件的焦距，材料的阿贝数以及异常的部分色散比。

公开(公告)号：US20090067064A1

公开(公告)日：2009-03-12

申请号：US12053290

申请日：2008-03-21

申请人： Huai-Yi Huang ,  Jung-Yao Chen

发明人： Huai-Yi Huang ,  Jung-Yao Chen

IPC分类号： G02B9/10

CPC分类号： G02B9/10 ,  G02B13/0045 ,  G02B13/005

摘要： A fixed-focus lens including a first lens group and a second lens group is provided. The first lens group has a negative refractive power, and consists essentially of a first lens, a second lens, a third lens, and a fourth lens arranged in sequence from an object side to an image side. Refractive powers of the first, second, third, and fourth lenses are negative, negative, positive, and negative respectively. The second lens group is disposed between the first lens group and the image side, and has a positive refractive power. The second lens group includes a fifth lens and a sixth lens arranged in sequence from the object side to the image side. Refractive powers of the fifth lens and the sixth lens are both positive.

摘要翻译： 提供了包括第一透镜组和第二透镜组的固定焦点透镜。 第一透镜组具有负折光力，并且基本上由从物体侧到像侧依次布置的第一透镜，第二透镜，第三透镜​​和第四透镜组成。 第一，第二，第三和第四透镜的折射率分别为负，负，正和负。 第二透镜组设置在第一透镜组和像侧之间，并且具有正的折射光焦度。 第二透镜组包括从物体侧到像侧依次布置的第五透镜和第六透镜。 第五透镜和第六透镜的折射率均为正。

公开(公告)号：US20080088950A1

公开(公告)日：2008-04-17

申请号：US11869666

申请日：2007-10-09

申请人： Hiroshi Endo

发明人： Hiroshi Endo

IPC分类号： G02B9/10 ,  G02B9/12 ,  G02B9/14

CPC分类号： G02B13/02 ,  G02B27/0037 ,  G02B27/4211 ,  G02B27/646

摘要： A photographing optical system includes at least one of a positive lens and diffractive optical element being provided closer to an object side of the system than an intersection P of a light axis and paraxial chief ray, and a negative lens, provided closer to an image side than the intersection. The positive lens and the negative lens are formed of materials satisfying the following conditions when the maximum height of a paraxial marginal ray, passing through a lens surface, from the light axis at a location closer to the object side than the intersection is greater than a maximum height of the paraxial marginal ray, passing through a lens surface, from the light axis at a location closer to the image than the intersection: −0.0015×νd+0.6425

摘要翻译： 摄影光学系统包括：靠近系统的物体侧的正透镜和衍射光学元件中的至少一个，与靠近图像侧的光轴和近轴主光线的交点P和负透镜 比交叉点。 正透镜和负透镜由满足以下条件的材料形成，当穿过透镜表面的近轴边缘光线的最大高度在比交叉点更靠近物体侧的位置处的光轴的最大高度大于 傍轴边缘射线的最大高度，通过透镜表面，在比交叉点更靠近图像的位置处的光轴：<？in-line-formula description =“In-line Formulas”end =“lead”？ > -0.0015xnud + 0.6425 <？in-line-formula description =“In-line Formulas”end =“lead” ？> 60 其中，nud是阿贝数，thetagF是部分色散比。

公开(公告)号：US20050207030A1

公开(公告)日：2005-09-22

申请号：US11076184

申请日：2005-03-09

申请人： Tsuyoshi Wakazono

发明人： Tsuyoshi Wakazono

IPC分类号： G02B15/16 ,  G02B9/10 ,  G02B15/167 ,  G02B15/17 ,  G02B17/00 ,  G02B17/08 ,  G02B27/64 ,  G03B19/00

CPC分类号： G02B27/642 ,  G02B9/10 ,  G02B15/17

摘要： Provided is an optical system having an image rotating function disposed on an image side with respect to an image pick up lens, which makes it possible that its optical performance is satisfactory, an eclipse amount is small, a field angle and an F number intended by a photographer are obtained, and compactness is achieved. The optical system is an optical system mountable to the image pick up lens. The optical system includes: an image rotator which is disposed on the image side with respect to a first imaging plane of the image pick up lens and has an incident optical axis and an emission optical axis made coaxial to each other; a first lens unit having a negative optical power which is disposed between the image pick up lens and the first imaging plane; a second lens unit having a positive optical power which is disposed between the first imaging plane and the image rotator; and a third lens unit having a positive optical power which is disposed on the image side with respect to the image rotator.

摘要翻译： 提供了一种具有相对于图像拾取透镜设置在图像侧的图像旋转功能的光学系统，这使得其光学性能令人满意，日食量小，视场角度和F数量可能 获得了摄影师，实现了紧凑性。 光学系统是可安装到图像拾取透镜的光学系统。 该光学系统包括：图像旋转器，其相对于图像拾取透镜的第一成像平面设置在图像侧，并具有彼此同轴的入射光轴和发射光轴; 具有负光学功率的第一透镜单元，其设置在所述图像拾取透镜和所述第一成像面之间; 具有正光学功率的第二透镜单元，其设置在第一成像面和图像旋转体之间; 以及相对于图像旋转体设置在像侧的具有正光焦度的第三透镜单元。

公开(公告)号：US5615049A

公开(公告)日：1997-03-25

申请号：US403436

申请日：1995-03-14

申请人： Masanobu Kaneko ,  Masaaki Yanagisawa

发明人： Masanobu Kaneko ,  Masaaki Yanagisawa

IPC分类号： G02B9/10 ,  G02B7/04 ,  G02B13/02 ,  G02B9/62 ,  G02B9/60

CPC分类号： G02B7/04

摘要： A compact internal focus objective lens system utilized in an astronomical telescope, tenestrical telescope, photo lens or the like has a superior ability to compose images when focusing on close or near objects. The lens system includes, in order from the object side, a first lens group G1 with a positive refractory power and a second lens group G2 with a negative refractory power. The first lens group G1 includes a composite lens L1 with a negative lens L11 and a positive lens L12 and a single lens L2 with a positive refractory power. The second lens group G2 has a composite lens L3 that has an overall negative refractory power. The second lens group G2 is moved along the optical axis for focusing. The objective lens satisfies the following conditions, thus permitting the compact internal focus objective lens system to clearly compose images, when focusing on close or near objects:0.3

摘要翻译： 在天文望远镜，天文望远镜，照相镜头等中使用的紧凑型内部聚焦物镜系统在聚焦在近距离物体上时具有优异的组合图像的能力。 透镜系统从物体侧依次包括具有正耐火能力的第一透镜组G1和具有负难熔力的第二透镜组G2。 第一透镜组G1包括具有负透镜L11和正透镜L12的复合透镜L1和具有正耐火能力的单透镜L2。 第二透镜组G2具有总体负的耐火功率的复合透镜L3。 第二透镜组G2沿着光轴移动以进行聚焦。 该物镜满足以下条件，因此当聚焦于近距离或近物体时，可以使紧凑型内部聚焦物镜系统清晰地组成图像：0.3

公开(公告)号：US5313328A

公开(公告)日：1994-05-17

申请号：US882254

申请日：1992-05-08

申请人： Norihiko Aoki

发明人： Norihiko Aoki

IPC分类号： G02B3/00 ,  G02B9/00 ,  G02B9/10 ,  G02B9/34 ,  G02B13/04 ,  G02B15/16 ,  G02B15/14

CPC分类号： G02B9/10 ,  G02B3/0087 ,  G02B9/34

摘要： An optical system comprising a plural number of lens elements at least one of which is designed as a graded refractive index lens element having refractive index distribution in the radial direction, and has aberrations favorably corrected in said optical system as a whole by making most of the correcting functions of the graded refractive index lens element for Petzval's sum and chromatic aberration.

摘要翻译： 一种光学系统，包括多个透镜元件，其中至少一个透镜元件被设计为在径向方向上具有折射率分布的渐变折射率透镜元件，并且在所述光学系统中通过使大部分 校正屈曲度和色差的渐变折射率透镜元件的功能。

公开(公告)号：US4755039A

公开(公告)日：1988-07-05

申请号：US741879

申请日：1985-06-06

申请人： Jun Hattori

发明人： Jun Hattori

IPC分类号： G02B9/00 ,  G02B3/00 ,  G02B9/04 ,  G02B9/10

CPC分类号： G02B9/04 ,  G02B3/0087

摘要： A distributed index of refraction type lens is applied to a focusing lens suitable for a photographing lens to correct various aberrations. One distributed index of refraction type lens and a single-lens (including a bonded lens) of homogeneous medium are combined such that the distributed index of refraction type lens has an index of refraction distribution which continuously decreases as a light goes away from an optical axis, and has a thickness distribution which is smallest on the optical axis of the lens and increases as it goes away from the optical axis. Thus, the aberrations in the whole system can be corrected by the single distributed index of refraction type lens and a light and easy-to-manufacture focusing lens is provided.

摘要翻译： 将折射型透镜的分布折射率应用于适于拍摄镜头的聚焦透镜以校正各种像差。 组合折射型透镜的一个分布折射率和均匀介质的单透镜（包括粘合透镜），使得折射型透镜的分布折射率具有随着光远离光轴而连续减小的折射率分布 ，并且具有在透镜的光轴上最小的厚度分布，并且随着其离开光轴而增加。 因此，可以通过单个折射型透镜的折射率来校正整个系统中的像差，并且提供光和易于制造的聚焦透镜。

公开(公告)号：US3817604A

公开(公告)日：1974-06-18

申请号：US32079373

申请日：1973-01-03

申请人： ATOMIC ENERGY COMMISSION

发明人： WATT B

IPC分类号： B23K26/02 ,  G02B6/42 ,  G02B13/00 ,  H01S3/23 ,  G02B9/10

CPC分类号： H01S3/2316 ,  B23K26/02 ,  G02B6/4206 ,  G02B6/4296 ,  G02B13/00

摘要： A method of providing a focal spot position independent of the input optical power of a laser beam. A negative lens is interposed such that focal spot motion caused by a changing refractive index in one lens element is canceled by an opposing motion in the negative lens element.

摘要翻译： 提供与激光束的输入光功率无关的焦点位置的方法。 插入负透镜，使得由一个透镜元件中的折射率变化引起的焦斑运动通过负透镜元件中的相反运动而抵消。