公开(公告)号：US20090029117A1

公开(公告)日：2009-01-29

申请号：US12178799

申请日：2008-07-24

申请人： Yuma Aoi ,  Youhei Nakagawa

发明人： Yuma Aoi ,  Youhei Nakagawa

IPC分类号： B32B23/00

CPC分类号： G02B3/00 ,  G02B5/1866 ,  Y10T428/24777

摘要： A composite lens that prevents insufficient hardening of an ultraviolet curable resin near the periphery of an optically effective portion. The composite lens includes a plastic lens and a resin layer. The plastic lens includes the optically effective portion and a flange surrounding the optically effective portion. The resin layer is formed from an ultraviolet curable resin and arranged in contact with the optically effective portion. The flange includes a diffusion portion which diffuses ultraviolet light irradiating the plastic lens toward the resin layer through the plastic lens.

摘要翻译： 一种复合透镜，其防止在光学有效部分的周围附近的紫外线固化树脂的硬化不足。 复合透镜包括塑料透镜和树脂层。 塑料透镜包括光学有效部分和围绕光学有效部分的凸缘。 树脂层由紫外线固化树脂形成，并与光学有效部分接触。 凸缘包括扩散部，其通过塑料透镜将照射塑料透镜的紫外线向树脂层扩散。

公开(公告)号：US08320057B2

公开(公告)日：2012-11-27

申请号：US12556414

申请日：2009-09-09

申请人： Youhei Nakagawa

发明人： Youhei Nakagawa

IPC分类号： G02B13/18 ,  G02B9/36

CPC分类号： G02B13/18 ,  G02B13/004 ,  G02B13/006

摘要： A lens unit includes a first lens having positive power, an aperture stop, a meniscal second lens having negative power, a meniscal third lens having positive power, and a fourth lens including an object side surface and an image side surface, each being aspherical and including at least one inflection point. The image side surface is concave at an image side. The first lens, the aperture stop, the second lens, the third lens, and the fourth lens are arranged in order from an object side toward the image side. The first lens includes an image side surface that is convex at the image side. The second lens includes an object side surface that is convex at the object side.

摘要翻译： 透镜单元包括具有正光焦度的第一透镜，孔径光阑，具有负光焦度的半月板第二透镜，具有正光焦度的半月板第三透镜，以及包括物体侧表面和像侧表面的第四透镜， 包括至少一个拐点。 图像侧表面在图像侧是凹的。 第一透镜，孔径光阑，第二透镜，第三透镜​​和第四透镜从物体侧朝向像侧依次布置。 第一透镜包括在像侧凸起的图像侧表面。 第二透镜包括在物体侧凸起的物体侧表面。

公开(公告)号：US08102607B2

公开(公告)日：2012-01-24

申请号：US12645679

申请日：2009-12-23

申请人： Youhei Nakagawa

发明人： Youhei Nakagawa

IPC分类号： G02B13/18 ,  G02B9/34

CPC分类号： G02B13/006 ,  G02B9/34 ,  G02B13/004

摘要： A lens unit including a first lens, an aperture stop, a second lens, a third lens, and a fourth lens arranged in order from an object side to an image side. The first lens is a meniscus lens having positive power. The second lens is a meniscus lens including a convex object side surface and having negative power. The third lens is a meniscus lens including a convex image side surface and having negative power. The fourth lens is aspherical, includes an image side surface and an object side surface, and has at least one inflection point on each of the image side surface and object side surface. The image side surface has a concave surface facing toward the image side.

摘要翻译： 一种透镜单元，包括从物体侧到像侧依次布置的第一透镜，孔径光阑，第二透镜，第三透镜​​和第四透镜。 第一透镜是具有正光焦度的弯月透镜。 第二透镜是包括凸面物体侧面并具有负电力的弯月形透镜。 第三透镜是包括凸面像侧面并且具有负光焦度的弯月形透镜。 第四透镜是非球面的，包括图像侧表面和物体侧表面，并且在每个图像侧表面和物体侧表面上具有至少一个拐点。 图像侧表面具有朝向图像侧的凹面。

公开(公告)号：US07916405B2

公开(公告)日：2011-03-29

申请号：US12181716

申请日：2008-07-29

申请人： Yuma Aoi ,  Youhei Nakagawa

发明人： Yuma Aoi ,  Youhei Nakagawa

IPC分类号： G02B9/12 ,  G02B13/18

CPC分类号： G02B13/006 ,  G02B9/12 ,  G02B13/0035

摘要： An imaging lens unit which achieves a lower profile without adversely affecting the optical performance. The imaging lens unit includes a first lens, an aperture stop, a second lens, and a third lens arranged sequentially along the optical axis from the object side to the image side. The first lens includes a first surface located on the object side and being convex toward the object side and a second surface located on the image side and being concave toward the image side near the optical axis and convex toward the image side as the rim of the first lens becomes closer.

摘要翻译： 一种成像透镜单元，其可以实现较低的轮廓，而不会不利地影响光学性能。 成像透镜单元包括从物体侧到像侧沿着光轴顺序布置的第一透镜，孔径光阑，第二透镜和第三透镜。 第一透镜包括位于物体侧的朝向物体侧凸出的第一表面和位于图像侧的第二表面，并且在光轴附近朝向像侧凹入，并且朝向像侧凸出，作为边缘 第一个镜头变得更近了。

公开(公告)号：US20100157442A1

公开(公告)日：2010-06-24

申请号：US12645679

申请日：2009-12-23

申请人： Youhei Nakagawa

发明人： Youhei Nakagawa

IPC分类号： G02B13/18

CPC分类号： G02B13/006 ,  G02B9/34 ,  G02B13/004

摘要： A lens unit including a first lens, an aperture stop, a second lens, a third lens, and a fourth lens arranged in order from an object side to an image side. The first lens is a meniscus lens having positive power. The second lens is a meniscus lens including a convex object side surface and having negative power. The third lens is a meniscus lens including a convex image side surface and having negative power. The fourth lens is aspherical, includes an image side surface and an object side surface, and has at least one inflection point on each of the image side surface and object side surface. The image side surface has a concave surface facing toward the image side.

摘要翻译： 一种透镜单元，包括从物体侧到像侧依次布置的第一透镜，孔径光阑，第二透镜，第三透镜​​和第四透镜。 第一透镜是具有正光焦度的弯月透镜。 第二透镜是包括凸面物体侧面并具有负电力的弯月形透镜。 第三透镜是包括凸面像侧面并且具有负光焦度的弯月形透镜。 第四透镜是非球面的，包括图像侧表面和物体侧表面，并且在每个图像侧表面和物体侧表面上具有至少一个拐点。 图像侧表面具有朝向图像侧的凹面。

公开(公告)号：US07558008B2

公开(公告)日：2009-07-07

申请号：US12058974

申请日：2008-03-31

申请人： Youhei Nakagawa

发明人： Youhei Nakagawa

IPC分类号： G02B9/34

CPC分类号： G02B13/006 ,  G02B5/205 ,  G02B5/208 ,  G02B9/34 ,  G02B13/0035 ,  G02B13/004

摘要： In a photographing lens unit, an aperture diaphragm, a first lens having positive refractive power, a second lens having negative refractive power, a third lens of a positive meniscus lens with a concave surface on the object side, an ND filter, a fourth lens of a negative meniscus lens with a convex surface on the object side, an IR cut filter, and an imaging element are disposed in order from the object side to the imaging element side. In the third lens, a surface shape on the object side changes from concave to convex as it is away from an optical axis, and a surface shape on the image side changes from convex to concave as it is away from the optical axis. In the fourth lens, a surface shape on the object side changes from convex to concave as it is away from the optical axis.

摘要翻译： 在拍摄镜头单元中，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，物体侧具有凹面的正凹凸透镜的第三透镜，ND滤光器，第四透镜 具有物体侧的凸面的负凹凸透镜，红外截止滤光器和摄像元件从物体侧到成像元件侧依次配置。 在第三透镜中，物体侧的表面形状随着离开光轴而从凹形变为凸状，并且像侧的表面形状随着离开光轴而从凸形变为凹状。 在第四透镜中，物体侧的表面形状随着离开光轴而从凸形变为凹状。

公开(公告)号：US08189275B2

公开(公告)日：2012-05-29

申请号：US12490870

申请日：2009-06-24

申请人： Youhei Nakagawa

发明人： Youhei Nakagawa

IPC分类号： G02B9/36 ,  G02B9/00

CPC分类号： G02B13/006 ,  G02B9/18 ,  G02B13/0035 ,  G02B13/004 ,  G02B13/18

摘要： A lens unit including a first lens, a second lens, a third lens, and a fourth lens arranged in order from an object side toward an image side. The first lens is laminated with the second lens. An aperture stop is held between the first lens and the second lens.

摘要翻译： 一种透镜单元，包括从物体侧朝向像侧依次布置的第一透镜，第二透镜，第三透镜​​和第四透镜。 第一透镜与第二透镜层压。 孔径光阑被保持在第一透镜和第二透镜之间。

公开(公告)号：US20070007675A1

公开(公告)日：2007-01-11

申请号：US11482755

申请日：2006-07-10

申请人： Youhei Nakagawa

发明人： Youhei Nakagawa

IPC分类号： B29D11/00

CPC分类号： B29D11/0073 ,  B29B11/00 ,  B29C35/0266 ,  B29C35/0894 ,  B29C37/0003 ,  B29C2035/0827 ,  B29C2791/001 ,  B29L2011/0016 ,  B29L2011/005

摘要： A method of manufacturing a compound optical element that reduces any damage to the mold and the lens base material caused by tight contact between the mold and the resin layer, enables easy control of thickness of the resin layer and realizes high productivity is provided. For this purpose, the method of manufacturing a compound optical element having a resin layer on a surface of a base material includes the steps of: applying a liquid of ultraviolet curing resin to at least one of the base material and the mold body; adjusting arrangement of the base material and the mold body; curing the liquid of ultraviolet curing resin at an outer circumference of a release facilitating region; curing the liquid of ultraviolet curing resin at the release facilitating region; and separating a resin layer formed by curing from the mold body.

摘要翻译： 制造复合光学元件的方法，其通过模具和树脂层之间的紧密接触而减少对模具和透镜基材的任何损坏，能够容易地控制树脂层的厚度并实现高生产率。 为此，在基材表面制造具有树脂层的复合光学元件的方法包括以下步骤：将紫外线固化树脂的液体施加到基材和模体中的至少一个; 调整基材和模体的布置; 在释放促进区域的外周处理紫外线固化树脂的液体; 在释放促进区域固化紫外线固化树脂的液体; 以及通过固化形成的树脂层与模体分离。

公开(公告)号：US20060050399A1

公开(公告)日：2006-03-09

申请号：US11217305

申请日：2005-09-02

申请人： Youhei Nakagawa

发明人： Youhei Nakagawa

IPC分类号： G02B3/00

CPC分类号： G02B1/00 ,  G02B3/02

摘要： A composite lens of the present invention has a resin layer made from a resin to be polymerized by ultraviolet rays provided on at least a part of a surface of a glass base material, the resin layer including a completely cured resin layer and an incompletely cured resin layer. The incompletely cured resin layer may be formed outside a lens effective diameter. Preferably, the incompletely cured resin layer has a polymerization degree of 60 to 90%.