公开(公告)号：US07262924B2

公开(公告)日：2007-08-28

申请号：US11466172

申请日：2006-08-22

申请人： Makoto Sekita

发明人： Makoto Sekita

IPC分类号： G02B3/02 ,  G02B1/06 ,  G02B9/00

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

摘要： At least one exemplary embodiment is directed to an optical system which includes a compound optical element including a lens element and a resin layer having different optical characteristics and having an aspherical interface therebetween. When Rref is a reference radius of curvature of the interface within an effective diameter, L is a distance from a diaphragm, ndg and νdg are a refractive index and an Abbe number, respectively, of a material of the lens element at the d-line, and ndj and νdj are a refractive index and an Abbe number, respectively, of a material of the resin layer at the d-line, the following expressions are satisfied: −1.5

摘要翻译： 至少一个示例性实施例涉及一种光学系统，其包括复合光学元件，该复合光学元件包括透镜元件和具有不同光学特性并且在其间具有非球面界面的树脂层。 当Rref是界面在有效直径内的参考曲率半径时，L是距离隔膜的距离，ndg和nudg分别是透镜元件在d线处的材料的折射率和阿贝数 ，ndj和nudj分别是树脂层在d线上的材料的折射率和阿贝数，满足下列表达式：<？in-line-formula description =“In-line Formulas” end =“lead”？> - 1.5 <？in-line-formula description =“In- 行公式“end =”lead“？> 0.1 <| ndg-ndj |之一 和5 <| nudg-nudj |。 <？in-line-formula description =“In-line Formulas”end =“tail”？>

公开(公告)号：US07215483B2

公开(公告)日：2007-05-08

申请号：US11234658

申请日：2005-09-09

申请人： Makoto Sekita

发明人： Makoto Sekita

IPC分类号： G02B15/14 ,  G02B13/16 ,  G02B27/10

CPC分类号： G02B15/177

摘要： At least one exemplary embodiment is directed to a zoom lens system which includes, in order from an object side to an image side a first lens unit having negative optical power, a second lens unit having positive optical power, and a third lens unit having positive optical power. In zooming, a distance between the first lens unit and the second lens unit and a distance between the second lens unit and the third lens unit are changed.

摘要翻译： 至少一个示例性实施例涉及一种变焦透镜系统，其从物体侧到像侧依次包括具有负光焦度的第一透镜单元，具有正光焦度的第二透镜单元和具有正光焦度的第三透镜单元 光功率 在变焦中，改变第一透镜单元和第二透镜单元之间的距离以及第二透镜单元和第三透镜单元之间的距离。

公开(公告)号：US06943962B2

公开(公告)日：2005-09-13

申请号：US10839145

申请日：2004-05-05

申请人： Makoto Sekita

发明人： Makoto Sekita

IPC分类号： G02B15/20 ,  G02B13/18 ,  G02B15/177 ,  G02B15/14

CPC分类号： G02B15/177

摘要： A zoom lens system is disclosed which includes a first lens unit with negative optical power, a second lens element with positive optical power, and a third lens element with positive optical power, arranged in that order from an object side to an image side. The zoom lens system performs zooming by changing distances between the lens units. By configuring the first lens unit of a meniscus-shaped negative lens element whose convex surface faces the object side and a positive lens element, and by setting the refractive indices of the lens elements to appropriate values, a zoom lens system is realized, which has a small number of constituent lenses, which is compact and which has an excellent optical performance.

摘要翻译： 公开了一种变焦透镜系统，其包括具有负光焦度的第一透镜单元，具有正光焦度的第二透镜元件和具有正光焦度的第三透镜元件，其从物体侧到像侧依次布置。 变焦镜头系统通过改变镜头单元之间的距离进行变焦。 通过将凸面朝向物体侧的弯月形负透镜元件的第一透镜单元和正透镜元件配置，并且通过将透镜元件的折射率设定为适当值，实现变焦透镜系统，其具有 少数构成透镜，其结构紧凑，具有优异的光学性能。

公开(公告)号：US06940662B2

公开(公告)日：2005-09-06

申请号：US10222352

申请日：2002-08-16

申请人： Makoto Sekita

发明人： Makoto Sekita

IPC分类号： G02B11/30 ,  G02B13/04 ,  G02B13/18 ,  G02B9/60

CPC分类号： G02B13/04

摘要： In a lens system, a first lens having negative optical power and a meniscus shape with a convex surface facing an object side, a second lens having positive optical power and a double-convex shape, a third lens having negative optical power and a double-concave shape, a fourth lens having positive optical power, and a fifth lens having positive optical power and a double-convex shape are arranged sequentially from a front side to a rear side. Letting D1,2 be an interval between said first and second lenses, D2,3 an interval between said second and third lenses, bf be a back focus of the entire system, and f be a focal length of the entire system, at least one of three conditions given by 0.6

摘要翻译： 在透镜系统中，具有负光焦度和具有朝向物体侧的凸面的弯月形状的第一透镜，具有正光焦度和双凸形状的第二透镜，具有负光焦度的第三透镜和双光焦度， 具有正光焦度的第四透镜和具有正光焦度和双凸形的第五透镜从前侧到后方依次布置。 令D <1,2>是所述第一透镜和第二透镜之间的间隔，D 2,3是所述第二透镜和第三透镜之间的间隔，bf是整个透镜的后焦点 系统，f是整个系统的焦距，由0.6 / f <1.0,0.55 给出的三个条件中的至少一个， SUB> / f <0.85，并且满足0.9

公开(公告)号：US06337772B2

公开(公告)日：2002-01-08

申请号：US09792242

申请日：2001-02-23

申请人： Tsukasa Uehara ,  Makoto Sekita ,  Kenji Kawano ,  Seiji Iida

发明人： Tsukasa Uehara ,  Makoto Sekita ,  Kenji Kawano ,  Seiji Iida

IPC分类号： G02B2714

CPC分类号： G02B17/086 ,  G02B17/0848 ,  G02B17/0896

摘要： In an optical element (B1) prepared by integrally forming, on surfaces of a transparent member, a refracting surface (R2) for receiving a light beam, a plurality of reflecting surfaces (R3, R4, R5) with curvatures, and a refracting surface (R6) for outputting the light beam reflected by the plurality of reflecting surfaces, a reference portion (7) for defining the position of the optical element in a predetermined direction with respect to a Y′-Z′ plane including an incident reference axis (5) and an exit reference axis (5) of at least one reflecting surface of the optical element (B1) is formed on the optical element.

摘要翻译： 在通过在透明构件的表面上一体地形成用于接收光束的折射表面（R2），具有曲率的多个反射表面（R3，R4，R5）和折射表面（B1）制备的光学元件（B1） （R6），用于输出由多个反射表面反射的光束;基准部分（7），用于相对于包括入射参考轴线的Y'-Z'平面在预定方向上限定光学元件的位置（ 5），并且光学元件（B1）的至少一个反射表面的出射参考轴线（5）形成在光学元件上。

公开(公告)号：US06181470B2

公开(公告)日：2001-01-30

申请号：US09356463

申请日：1999-07-19

申请人： Makoto Sekita

发明人： Makoto Sekita

IPC分类号： G02B1700

CPC分类号： G02B17/086 ,  G02B17/0848

摘要： An integrally formed optical element includes an incident surface into which light flux from an object enters, a plurality of reflecting curved surfaces decentered one to the other from which the light flux entered from the incident surface is reflected and an emergent surface from which the light flux from the reflecting curved surfaces is emitted, wherein an antireflection film is applied onto the incident surface and the emergent surface, and wherein the light flux emitted from the emergent surface forms an image.

摘要翻译： 整体形成的光学元件包括从物体进入的光束进入的入射面，多个反射曲面，其中入射面入射的光束从该入射面反射，并且出射面 发射反射曲面，其中将防反射膜施加到入射表面和出射表面上，并且其中从出射表面发射的光束形成图像。

公开(公告)号：US5973858A

公开(公告)日：1999-10-26

申请号：US789801

申请日：1997-01-28

申请人： Makoto Sekita

发明人： Makoto Sekita

IPC分类号： G02B17/08 ,  G02B17/00 ,  G02B27/14

CPC分类号： G02B17/086 ,  G02B17/0816 ,  G02B17/0848

摘要： The present invention relates to a reflecting optical system, wherein the reflecting optical system comprises a first reflecting surface having a positive power and a second reflecting surface having a negative power, wherein at least one of the surfaces is inclined and the reflecting optical system comprises a substantially afocal optical system of the surfaces.

摘要翻译： 反射光学系统本发明涉及一种反射光学系统，其中反射光学系统包括具有正光焦度的第一反射表面和具有负光焦度的第二反射表面，其中至少一个表面是倾斜的并且反射光学系统包括 表面的基本无焦光学系统。

公开(公告)号：US5917662A

公开(公告)日：1999-06-29

申请号：US789802

申请日：1997-01-28

申请人： Makoto Sekita

发明人： Makoto Sekita

IPC分类号： G02B23/02 ,  G02B17/08 ,  G02B27/14 ,  G02B17/00

CPC分类号： G02B17/086 ,  G02B17/0816

摘要： This invention is directed to a phototaking optical system including a solid optical element having a refraction incident surface on incident surface on which light from an object is incident, a plurality of curved reflection surfaces which sequentially reflect the light from the refraction incident surface, and a refraction exit surface from which the light from the curved reflection surfaces emerges, wherein at least one of the refraction incident surface and the refraction exit surface is a rotation asymmetrical surface.

摘要翻译： 本发明涉及一种摄影光学系统，其包括：固体光学元件，其在入射表面上具有折射入射表面，来自物体的光入射到所述入射表面上;多个弯曲反射表面，其依次反射来自折射入射表面的光;以及 来自弯曲反射面的光从该出射面出射，其中折射入射面和折射射出面中的至少一个为旋转对称面。

公开(公告)号：US5132848A

公开(公告)日：1992-07-21

申请号：US781579

申请日：1991-10-23

申请人： Akihiro Nishio ,  Makoto Sekita

发明人： Akihiro Nishio ,  Makoto Sekita

IPC分类号： G02B15/20 ,  G02B15/177

CPC分类号： G02B15/177

摘要： A wideangle zoom lens has four lens groups including a first lens group having a negative refractive power, a second group having a positive refractive power, a third lens group having a negative refractive power and a fourth lens group having a positive refractive power. The first to fourth lens groups being arranged object side in that order. The zooming operation from a wideangle end to a telephoto end is performed by increasing the distance between the second and third lens groups while reducing the distance betwen the third and fourth lens groups. Zooming is performed by non-linearly moving the first lens group. The first to fourth lens groups are arranged to meet the following conditions:3.0

摘要翻译： 广角变焦透镜具有四个透镜组，包括具有负折光力的第一透镜组，具有正折光力的第二组，具有负折光力的第三透镜组和具有正折光力的第四透镜组。 第一至第四透镜组按照该顺序布置在物体侧。 通过在减小第三和第四透镜组之间的距离的同时增加第二和第三透镜组之间的距离来执行从广角端到望远端的变焦操作。 通过非线性移动第一透镜组来进行变焦。 第一至第四透镜组被设置为满足以下条件：3.0

公开(公告)号：US5103343A

公开(公告)日：1992-04-07

申请号：US742405

申请日：1991-08-08

申请人： Makoto Sekita

发明人： Makoto Sekita

IPC分类号： G02B15/167 ,  G02B15/173

CPC分类号： G02B15/173

摘要： A zoom lens is disclosed comprising, in the order from the object side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a stop and a third lens unit having a positive refractive power, zooming being performed by moving the second lens unit along an optical axis and focusing being performed by moving the third lens unit, the zoom lens satisfying the following conditions;-0.6