公开(公告)号：US08004777B2

公开(公告)日：2011-08-23

申请号：US12419490

申请日：2009-04-07

申请人： Eigo Sano ,  Takashi Kawasaki ,  Yuichi Ozaki

发明人： Eigo Sano ,  Takashi Kawasaki ,  Yuichi Ozaki

IPC分类号： G02B9/34

CPC分类号： G02B9/34 ,  G02B13/004 ,  G02B13/22

摘要： An image pickup lens includes: an aperture stop; a first lens having a positive power and including a convex surface facing an object side; a second lens having a negative power and including a concave surface facing an image side; a third lens in a meniscus shape having a positive power and including a convex surface facing the image side; and a fourth lens in a meniscus shape having a negative power and including a convex surface facing the object side. The image pickup lens satisfies predetermined conditions relating to a composite focal length of the first through third lenses, a length of an air space between the third lens and the fourth lens along the optical axis, and a curvature radius of a surface of the second lens facing the image side.

摘要翻译： 图像拾取透镜包括：孔径光阑; 具有正功率并且包括面向物体侧的凸面的第一透镜; 具有负功率并且包括面向图像侧的凹面的第二透镜; 具有正功率并且包括面向图像侧的凸面的弯液面形状的第三透镜; 以及具有负功率并且包括面向物体侧的凸面的弯液面形状的第四透镜。 图像拾取透镜满足关于第一至第三透镜的复合焦距，沿着光轴的第三透镜和第四透镜之间的空气间隔的长度以及第二透镜的表面的曲率半径的预定条件 面对图像侧。

公开(公告)号：US08130455B2

公开(公告)日：2012-03-06

申请号：US12467980

申请日：2009-05-18

申请人： Eigo Sano ,  Takashi Kawasaki

发明人： Eigo Sano ,  Takashi Kawasaki

IPC分类号： G02B3/02 ,  G02B13/18

CPC分类号： G02B13/16 ,  G02B7/08 ,  G02B13/004 ,  G02B13/22

摘要： An image pickup lens includes, in order from an object side thereof: a first lens in a meniscus shape having a positive refractive power and including a convex surface facing the object side; a second lens having a negative refractive power and including a concave surface facing an image side of the image pickup lens; a third lens in a meniscus shape having a positive refractive power and including a convex surface facing the image side; and a fourth lens having a negative refractive power and including a concave surface facing the image side, where at least one surface of the fourth lens is in an aspheric shape. The image pickup lens satisfies a predetermined condition relating to a composite focal length of the first lens and the second lens, and a focal length of a total system of the image pickup lens.

摘要翻译： 图像拾取透镜从其物体侧依次包括：具有正屈光力并且包括面向物体侧的凸面的弯液面形状的第一透镜; 具有负屈光力并且包括面向图像拾取透镜的像侧的凹面的第二透镜; 具有正屈光力并且包括面向图像侧的凸面的弯液面形状的第三透镜; 以及第四透镜，其具有负屈光力并且包括面向图像侧的凹面，其中第四透镜的至少一个表面为非球面形状。 图像拾取透镜满足与第一透镜和第二透镜的合成焦距有关的预定条件以及图像拾取透镜的总系统的焦距。

公开(公告)号：US09310582B2

公开(公告)日：2016-04-12

申请号：US14345152

申请日：2012-09-10

申请人： Eigo Sano ,  Keiko Yamada

发明人： Eigo Sano ,  Keiko Yamada

IPC分类号： G02B9/60 ,  G02B7/02 ,  G02B13/00 ,  G02B13/04 ,  H04N5/225 ,  H04N5/357

CPC分类号： G02B7/021 ,  G02B9/60 ,  G02B13/0045 ,  G02B13/04 ,  H04N5/2254 ,  H04N5/3572

摘要： Provided is an image pickup lens that despite being small is favorably corrected for aberrations and has a five element configuration that is wide angle and has a bright F-number also provided is an image pickup device and a portable terminal using the image pickup lens. The image surface side of the fifth lens has an aspherical shape, has an inflection point at a position other than a position that intersects with the light axis, and satisfies the following formulae: −5.0

摘要翻译： 提供了一种图像拾取透镜，尽管小而有利地用于像差校正，并且具有广角的五元件配置并且还具有明亮的F数，但是也提供了图像拾取装置和使用图像拾取透镜的便携式终端。 第五透镜的像面侧具有非球面形状，在与光轴相交的位置以外的位置具有拐点，满足下式：-5.0 <（r1 + r2）/（r1-r2 ）＆nlE; -1.0（1）; 0.90

公开(公告)号：US08917457B2

公开(公告)日：2014-12-23

申请号：US13637338

申请日：2011-03-22

申请人： Keiji Matsusaka ,  Hiroaki Tanaka ,  Eigo Sano

发明人： Keiji Matsusaka ,  Hiroaki Tanaka ,  Eigo Sano

IPC分类号： G02B3/02 ,  G02B9/62

CPC分类号： G02B13/0045 ,  G02B13/18

摘要： An imaging lens system has, from an object side, at least one positive lens element convex to the object side, a negative lens element, and at least one lens element having an aspherical surface. The positive and negative lens elements are arranged next to each other. The formulae 0.1

摘要翻译： 成像透镜系统从物体侧具有至少一个凸出到物体侧的正透镜元件，负透镜元件和至少一个具有非球面的透镜元件。 正和负透镜元件彼此相邻布置。 满足公式0.1

公开(公告)号：US20140340568A1

公开(公告)日：2014-11-20

申请号：US14345152

申请日：2012-09-10

申请人： Eigo Sano ,  Keiko Yamada

发明人： Eigo Sano ,  Keiko Yamada

IPC分类号： G02B7/02 ,  H04N5/225

CPC分类号： G02B7/021 ,  G02B9/60 ,  G02B13/0045 ,  G02B13/04 ,  H04N5/2254 ,  H04N5/3572

摘要： Provided is an image pickup lens that despite being small is favorably corrected for aberrations and has a five element configuration that is wide angle and has a bright F-number also provided is an image pickup device and a portable terminal using the image pickup lens. The image surface side of the fifth lens has an aspherical shape, has an inflection point at a position other than a position that intersects with the light axis, and satisfies the following formulae: −5.0

摘要翻译： 提供了一种图像拾取透镜，尽管小而有利地用于像差校正，并且具有广角的五元件配置并且还具有明亮的F数，但是也提供了图像拾取装置和使用图像拾取透镜的便携式终端。 第五透镜的像面侧具有非球面形状，在与光轴相交的位置以外的位置具有拐点，满足下式：-5.0 <（r1 + r2）/（r1-r2 ）＆nlE; -1.0（1）; 0.90

公开(公告)号：US08792184B2

公开(公告)日：2014-07-29

申请号：US13574988

申请日：2010-12-22

申请人： Kazuki Matsui ,  Eigo Sano ,  Yasunari Fukuta

发明人： Kazuki Matsui ,  Eigo Sano ,  Yasunari Fukuta

IPC分类号： G02B13/18

CPC分类号： G02B13/0035

摘要： An image-capturing lens includes, in order from an object side: a meniscus-shaped first lens which has positive power near an optical axis; a second lens which has positive power near the optical axis and has negative power in the periphery of the second lens; and a meniscus-shaped third lens. The image-capturing lens satisfies the following conditional formulas: TL/f

摘要翻译： 图像拍摄透镜从物体侧依次包括：在光轴附近具有正光焦度的弯液面状的第一透镜; 第二透镜，其在光轴附近具有正电力，并且在第二透镜的周边具有负电力; 和弯月面状的第三透镜。 图像拍摄透镜满足以下条件式：TL / f <1.10,2.00 <（r2 + r1）/（r2-r1）<4.00和0.07

公开(公告)号：US08502907B2

公开(公告)日：2013-08-06

申请号：US13253501

申请日：2011-10-05

申请人： Eigo Sano ,  Yuichi Ozaki

发明人： Eigo Sano ,  Yuichi Ozaki

IPC分类号： H04N5/225 ,  G02B15/14 ,  G02B13/02 ,  G02B7/28

CPC分类号： G02B13/0045 ,  G02B13/18 ,  H04N5/225

摘要： Provided is a small-sized five-element image pickup lens which ensures a sufficient lens speed of about F2 and exhibits various aberrations being excellently corrected. The image pickup lens is composed of, in order from the object side, a first lens with a positive refractive power, including a convex surface facing the object side; a second lens with a negative refractive power, including a concave surface facing the image side; a third lens with a positive or negative refractive power; a fourth lens with a positive refractive power, including a convex surface facing the image side; and a fifth lens with a negative refractive power, including a concave surface facing the image side. The image-side surface of the fifth lens has an aspheric shape, and includes an inflection point at a position excluding an intersection point with the optical axis.

公开(公告)号：US08427569B2

公开(公告)日：2013-04-23

申请号：US12638837

申请日：2009-12-15

申请人： Eigo Sano

发明人： Eigo Sano

IPC分类号： G02B13/16

CPC分类号： G02B15/14 ,  G02B13/0045 ,  G02B13/16 ,  H04N5/2254 ,  H04N5/23212 ,  H04N5/335

摘要： An image pickup lens includes: a first lens with a positive power, including a convex surface facing the object side; an aperture stop; a second lens with a negative power, including a concave surface facing the image side; a third lens with a positive or negative power; a fourth lens with a positive power, including a convex surface facing the image side; and a fifth lens with a negative power, including a concave surface facing the image side. The surface of the fifth lens facing the image side is an aspheric surface and includes an inflection point. The image pickup lens satisfies the predetermined condition relating to a focal length of the first lens.

摘要翻译： 图像拾取透镜包括：具有正功率的第一透镜，包括面向物体侧的凸面; 孔径光阑; 具有负功率的第二透镜，包括面向图像侧的凹面; 具有正或负功率的第三透镜; 具有正功率的第四透镜，包括面向图像侧的凸面; 以及具有负功率的第五透镜，包括面向图像侧的凹面。 面向图像侧的第五透镜的表面是非球面并且包括拐点。 图像拾取透镜满足与第一透镜的焦距有关的预定条件。

公开(公告)号：US20120075721A1

公开(公告)日：2012-03-29

申请号：US13376347

申请日：2010-03-11

申请人： Hirotoshi Konishi ,  Taizo Wakimura ,  Satoshi Onishi ,  Kenji Matsusaka ,  Mitsuhiko Morita ,  Eigo Sano ,  Hiroaki Tanaka

发明人： Hirotoshi Konishi ,  Taizo Wakimura ,  Satoshi Onishi ,  Kenji Matsusaka ,  Mitsuhiko Morita ,  Eigo Sano ,  Hiroaki Tanaka

IPC分类号： G02B13/18 ,  G02B9/60 ,  G02B7/04

CPC分类号： G02B13/02 ,  G02B13/003 ,  G02B13/0045 ,  G02B13/18

摘要： Provided is an image pickup lens that forms an image on an image pickup element with light from a subject. In the image pickup lens, a lens that is disposed on an image pickup element side is fixed in position, and a focusing lens group having a plurality of lenses including a lens closest to the subject is moved in an optical axis direction, thereby performing focusing.

摘要翻译： 提供了一种利用来自被摄体的光在图像拾取元件上形成图像的图像拾取透镜。 在图像拾取透镜中，设置在图像拾取元件侧的透镜被固定就位，并且具有包括最接近被摄体的透镜的多个透镜的聚焦透镜组在光轴方向上移动，从而进行聚焦 。

公开(公告)号：US07535659B2

公开(公告)日：2009-05-19

申请号：US11893180

申请日：2007-08-15

申请人： Eigo Sano

发明人： Eigo Sano

IPC分类号： G02B9/34 ,  G02B3/02 ,  G02B9/00

CPC分类号： G02B9/34 ,  G02B13/004

摘要： The present invention provides an image pickup lens for forming a light flux from a subject into an image on a photo-electric converter of a solid image pickup element, and the image pickup lens includes, in order from an object side thereof: and aperture stop; a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; and a fourth lens having a negative refractive power. The fourth lens includes a concave surface facing the object side and at least one optical surface has an aspheric shape in the fourth lens. The image pickup lens satisfies the predetermined condition according to a curvature radius of the surfaces of the fourth lens and a focal length.

摘要翻译： 本发明提供了一种用于在固体摄像元件的光电转换器上形成从被摄体的光束到图像的图像拾取透镜，并且图像拾取透镜从其物体侧依次包括：孔径光阑 ; 具有正屈光力的第一透镜; 具有负屈光力的第二透镜; 具有正屈光力的第三透镜; 以及具有负屈光力的第四透镜。 第四透镜包括面向物体侧的凹面，并且至少一个光学表面在第四透镜中具有非球面形状。 图像拾取透镜根据第四透镜的表面的曲率半径和焦距来满足预定条件。