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公开(公告)号：US20100231686A1
公开(公告)日：2010-09-16
申请号：US12590114
申请日：2009-11-02
Applicant: Hisashi Goto , Akio Michinaka , Takahiro Amanai
Inventor： Hisashi Goto , Akio Michinaka , Takahiro Amanai
CPC classification number: G02B13/06 , G02B13/0035 , G02B13/18
Abstract: An optical system comprises, in order from the object side, an aperture stop, a first lens with positive refracting power, a second lens with negative refracting power, and a third lens, both surfaces of the third lens are an aspherical surface in which refracting power varies in accordance with distance from the optical axis in such a way that the both surfaces have a convex shape facing toward the object side in the vicinity of the optical axis and have a concave shape facing toward the object side in the vicinity of the outer circumference, and the following conditions (1) and (2) are satisfied: 2.2
Abstract translation: 光学系统从物体侧起依次包括孔径光阑，具有正折射力的第一透镜，具有负屈光力的第二透镜和第三透镜，第三透镜的两个表面都是非球面，折射 功率根据与光轴的距离而变化，使得两个表面在光轴附近具有面向物体侧的凸形，并且在外部附近具有面向物体侧的凹形 圆周和满足以下条件（1）和（2）：2.2
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公开(公告)号：US07692874B2
公开(公告)日：2010-04-06
申请号：US12319956
申请日：2009-01-13
Applicant: Takahiro Amanai , Akio Michinaka , Hisashi Goto
Inventor： Takahiro Amanai , Akio Michinaka , Hisashi Goto
CPC classification number: G02B13/0035 , G02B9/12
Abstract: A wide-angle optical system comprises, in order from its object side, a stop, a first lens (L1) having positive refracting power, a second lens (L2) having negative refracting power and a third lens (L3) that is an aspheric lens. The third lens is configured such that as viewed in a lens section including an optical axis, a portion thereof near the optical axis is in a meniscus shape convex on an object side thereof, and an object side surface and an image side surface thereof at a peripheral site are in a meniscus shape convex on an image side thereof. The optical system satisfies the following conditions (1-1) and (1-2). −0.40
Abstract translation: 广角光学系统从物体侧依次包括具有正折射力的第一透镜（L1），具有负折射率的第二透镜（L2）和作为非球面的第三透镜（L3）的第二透镜 镜片。 第三透镜被配置为使得如果在包括光轴的透镜部分中观察到，其在光轴附近的部分在其物体侧上呈凸形的弯月形状，并且其物体侧表面和像侧表面在 周边部位在其像侧上呈弯月形凸起。 光学系统满足以下条件（1-1）和（1-2）。 -0.40
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Patent Agency Ranking
公开(公告)号：US08379327B2
公开(公告)日：2013-02-19
申请号：US12590114
申请日：2009-11-02
Applicant: Hisashi Goto , Akio Michinaka , Takahiro Amanai
Inventor： Hisashi Goto , Akio Michinaka , Takahiro Amanai
Abstract: An optical system comprises, in order from the object side, an aperture stop, a first lens with positive refracting power, a second lens with negative refracting power, and a third lens, both surfaces of the third lens are an aspherical surface in which refracting power varies in accordance with distance from the optical axis in such a way that the both surfaces have a convex shape facing toward the object side in the vicinity of the optical axis and have a concave shape facing toward the object side in the vicinity of the outer circumference, and the following conditions (1) and (2) are satisfied: 2.2
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公开(公告)号：US20100157443A1
公开(公告)日：2010-06-24
申请号：US12590238
申请日：2009-11-03
Applicant: Hisashi Goto , Akio Michinaka , Takahiro Amanai
Inventor： Hisashi Goto , Akio Michinaka , Takahiro Amanai
IPC: G02B13/18
Abstract: A wide angle optical system is formed by, in order from the object side, an aperture stop, a first lens with positive refracting power, a second lens with negative refracting power, and a third lens. Both surfaces of the third lens are an aspherical surface in which refracting power varies in accordance with distance from the optical axis in such a way that the both surfaces have a convex shape facing toward the object side in the vicinity of the optical axis and have a concave shape facing toward the object side in the vicinity of the outer circumference, and the following conditions (1) and (2) are satisfied: 0.1
Abstract translation: 广角光学系统由物体侧依次形成有孔径光阑，具有正折射力的第一透镜，具有负折射力的第二透镜和第三透镜。 第三透镜的两个表面都是非球面，其中折射力根据距离光轴的距离而变化，使得两个表面在光轴附近具有朝向物体侧的凸形，并且具有 （1）和（2）满足以下条件（1）和（2）：0.1
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公开(公告)号：US08625207B2
公开(公告)日：2014-01-07
申请号：US12590114
申请日：2009-11-02
Applicant: Hisashi Goto , Akio Michinaka , Takahiro Amanai
Inventor： Hisashi Goto , Akio Michinaka , Takahiro Amanai
IPC: G02B13/18
CPC classification number: G02B13/06 , G02B13/0035 , G02B13/18
Abstract: An optical system comprises, in order from the object side, an aperture stop, a first lens with positive refracting power, a second lens with negative refracting power, and a third lens, both surfaces of the third lens are an aspherical surface in which refracting power varies in accordance with distance from the optical axis in such a way that the both surfaces have a convex shape facing toward the object side in the vicinity of the optical axis and have a concave shape facing toward the object side in the vicinity of the outer circumference, and the following conditions (1) and (2) are satisfied: 2.2
Abstract translation: 光学系统从物体侧起依次包括孔径光阑，具有正折射力的第一透镜，具有负屈光力的第二透镜和第三透镜，第三透镜的两个表面都是非球面，折射 功率根据与光轴的距离而变化，使得两个表面在光轴附近具有面向物体侧的凸形，并且在外部附近具有面向物体侧的凹形 圆周和满足以下条件（1）和（2）：2.2
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公开(公告)号：US20090180200A1
公开(公告)日：2009-07-16
申请号：US12319956
申请日：2009-01-13
Applicant: Takahiro Amanai , Akio Michinaka , Hisashi Goto
Inventor： Takahiro Amanai , Akio Michinaka , Hisashi Goto
IPC: G02B13/18
CPC classification number: G02B13/0035 , G02B9/12
Abstract: A wide-angle optical system comprises, in order from its object side, a stop, a first lens (L1) having positive refracting power, a second lens (L2) having negative refracting power and a third lens (L3) that is an aspheric lens. The third lens is configured such that as viewed in a lens section including an optical axis, a portion thereof near the optical axis is in a meniscus shape convex on an object side thereof, and an object side surface and an image side surface thereof at a peripheral site are in a meniscus shape convex on an image side thereof. The optical system satisfies the following conditions (1-1) and (1-2). −0.40
Abstract translation: 广角光学系统从物体侧依次包括具有正折射力的第一透镜（L1），具有负折射率的第二透镜（L2）和作为非球面的第三透镜（L3）的第二透镜 镜片。 第三透镜被配置为使得如果在包括光轴的透镜部分中观察到，其在光轴附近的部分在其物体侧上呈凸形的弯月形状，并且其物体侧表面和像侧表面在 周边部位在其像侧上呈弯月形凸起。 光学系统满足以下条件（1-1）和（1-2）。 <？in-line-formula description =“In-line Formulas”end =“lead”？> - 0.40
<？in-line-formula description =“In-line formula”end =“lead”？> 0.30 其中f是整个广角光学系统的焦距，f3是第三个透镜的焦距。 当Lm表示以光轴以36°的角度穿过止动件的中心的光线时，Pm7表示Lm通过第三透镜的像侧表面的点，hc7应为 距离Pm7到光轴的距离，并且假设hp7是从第三透镜的像侧表面的凸顶点Pp7到光轴的距离。 -
公开(公告)号：US08072696B2
公开(公告)日：2011-12-06
申请号：US12590238
申请日：2009-11-03
Applicant: Hisashi Goto , Akio Michinaka , Takahiro Amanai
Inventor： Hisashi Goto , Akio Michinaka , Takahiro Amanai
Abstract: A wide angle optical system is formed by, in order from the object side, an aperture stop, a first lens with positive refracting power, a second lens with negative refracting power, and a third lens. Both surfaces of the third lens are an aspherical surface in which refracting power varies in accordance with distance from the optical axis in such a way that the both surfaces have a convex shape facing toward the object side in the vicinity of the optical axis and have a concave shape facing toward the object side in the vicinity of the outer circumference, and the following conditions (1) and (2) are satisfied: 0.1
Abstract translation: 广角光学系统由物体侧依次形成有孔径光阑，具有正折射力的第一透镜，具有负折射力的第二透镜和第三透镜。 第三透镜的两个表面都是非球面，其中折射力根据距离光轴的距离而变化，使得两个表面在光轴附近具有朝向物体侧的凸形，并且具有 （1）和（2）满足以下条件（1）和（2）：0.1
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