公开(公告)号：US4371419A

公开(公告)日：1983-02-01

申请号：US115195

申请日：1980-01-25

申请人： Tsuguo Fukuda ,  Hitoshi Hirano

发明人： Tsuguo Fukuda ,  Hitoshi Hirano

IPC分类号： C01G35/00 ,  C30B15/00 ,  C30B29/30 ,  H01L41/18 ,  H01L41/22 ,  H01L41/39 ,  C30B15/10

CPC分类号： C30B15/00 ,  C30B29/30 ,  Y10S117/90 ,  Y10S117/906 ,  Y10S117/91

摘要： A method for producing a lithium tantalate single crystal comprises the steps of preparing a melt consisting essentially of lithium tantalate in a platinum-rhodium crucible including (20 to 35 weight percent of rhodium and 80 to 65 weight percent of platinum), and growing a lithium tantalate single crystal from the melt.

摘要翻译： 一种钽酸锂单晶的制造方法包括以下步骤：在铂铑坩埚中制备基本上由钽酸锂组成的熔体，其包含（20〜35重量％的铑和80〜65重量％的铂），并生长锂 来自熔体的钽质单晶。

公开(公告)号：US4022652A

公开(公告)日：1977-05-10

申请号：US611838

申请日：1975-09-09

申请人： Hitoshi Hirano ,  Tsuguo Fukuda

发明人： Hitoshi Hirano ,  Tsuguo Fukuda

IPC分类号： C01G35/00 ,  C30B15/00 ,  C30B15/34 ,  C30B19/06 ,  H01L21/208 ,  B01J17/18 ,  B01J17/34 ,  B01J17/36

CPC分类号： C30B19/062 ,  C30B15/00 ,  C30B15/007 ,  C30B15/34 ,  C30B29/30 ,  Y10S117/90

摘要： A method of growing multiple monocrystalline layers from melts comprising growing a first monocrystalline layer from the first melt, and growing a second monocrystalline layer on the first monocrystalline layer from the second melt by successively contacting the first monocrystalline layer with the second melt during the growth of the first monocrystalline layer.

摘要翻译： 一种从熔体生长多个单晶层的方法，包括从第一熔体生长第一单晶层，以及在第二熔体的生长过程中，通过使第一单晶层与第二熔体连续接触，从第二熔体在第一单晶层上生长第二单晶层 第一个单晶层。

公开(公告)号：US08988793B2

公开(公告)日：2015-03-24

申请号：US13494406

申请日：2012-06-12

申请人： Yoji Kubota ,  Kenichi Kubota ,  Hitoshi Hirano ,  Ichiro Kurihara ,  Yoshio Ise ,  Tomohiro Yonezawa

发明人： Yoji Kubota ,  Kenichi Kubota ,  Hitoshi Hirano ,  Ichiro Kurihara ,  Yoshio Ise ,  Tomohiro Yonezawa

IPC分类号： G02B9/60 ,  G02B13/00

CPC分类号： G02B13/0045 ,  G02B9/60 ,  G02B27/0025

摘要： An imaging lens includes a positive first lens; a negative second lens with a meniscus lens shape directing a convex surface thereof to an object side near an optical axis; a positive third lens; a negative fourth lens with a meniscus lens shape directing a concave surface thereof to the object side near the optical axis; a negative fifth lens with a meniscus lens shape directing a convex surface thereof to the object side near the optical axis, arranged in this order from the object side. The imaging lens satisfies the following conditional expressions when the first lens has a focal length f1, the second lens has a focal length f2, the third lens has a focal length f3, the fourth lens has a focal length f4, and the fifth lens has a focal length f5: f1

摘要翻译： 成像透镜包括正的第一透镜; 具有将其凸形表面引导到靠近光轴的物体侧的弯月透镜形状的负第二透镜; 正第三透镜; 具有弯曲透镜形状的负第四透镜，其凹面朝向光轴附近的物体侧; 具有弯曲透镜形状的负第五透镜，其将其凸表面引导到物体侧的靠近光轴的物体侧，从物体侧依次排列。 当第一透镜具有焦距f1，第二透镜具有焦距f2，第三透镜​​具有焦距f3，第四透镜具有焦距f4时，成像透镜满足以下条件表达式，并且第五透镜具有 焦距f5：f1

公开(公告)号：US08879172B2

公开(公告)日：2014-11-04

申请号：US13347048

申请日：2012-01-10

申请人： Yoji Kubota ,  Kenichi Kubota ,  Hitoshi Hirano ,  Ichiro Kurihara ,  Yoshio Ise ,  Sumio Fukuda

发明人： Yoji Kubota ,  Kenichi Kubota ,  Hitoshi Hirano ,  Ichiro Kurihara ,  Yoshio Ise ,  Sumio Fukuda

IPC分类号： G02B9/34 ,  G02B13/18 ,  G02B13/00

CPC分类号： G02B13/004 ,  G02B9/34 ,  G02B13/18

摘要： An imaging lens includes a first lens L1 that has a biconvex shape near an optical axis and has positive refractive power, a second lens L2 that has a biconcave shape near the optical axis and has negative refractive power, a third lens L3 that has a shape of a meniscus lens directing a concave surface thereof to an object side near an optical axis and has positive refractive power, and a fourth lens L4 that has a biconcave shape near the optical axis and has negative refractive power, arranged in this order from the object side. When the whole lens system has a focal length f and the fourth lens L4 has a focal length f4, the imaging lens of the invention satisfies the following expression: −0.7

摘要翻译： 成像透镜包括在光轴附近具有双凸形状并且具有正折光力的第一透镜L1，在光轴附近具有双凹形状并具有负折光力的第二透镜L2，具有负折射力的第三透镜L3，具有形状 的凹凸透镜将其凹面指向光轴附近的物体侧并具有正折光力;以及第四透镜L4，其具有靠近光轴并具有负折光力的第二透镜L4，该第四透镜L4从物体依次排列 侧。 当整个透镜系统具有焦距f并且第四透镜L4具有焦距f4时，本发明的成像镜片满足以下表达式：-0.7

公开(公告)号：US08760769B2

公开(公告)日：2014-06-24

申请号：US13448653

申请日：2012-04-17

申请人： Yoji Kubota ,  Kenichi Kubota ,  Hitoshi Hirano

发明人： Yoji Kubota ,  Kenichi Kubota ,  Hitoshi Hirano

IPC分类号： G02B15/14

CPC分类号： G02B15/177

摘要： A zoom lens includes a first lens group G1 that is negative, a second lens group G2 that is negative, and a third lens group G3 that is positive. The first lens group G1 includes a first lens L1 that is negative and a prism P, and the second lens group G2 includes a second lens L2 that is positive and a third lens L3 that is negative. The third lens group G3 includes a stop ST, a fourth lens L4 that is positive, and a fifth lens L5 that is negative. According to this configuration, upon changing magnification from a wide-angle end to a telephoto end, the first lens group G1 is secured, the second lens group G2 first moves to the image plane side and then moves to the object side, and the third lens group G3 linearly moves to the object side.

摘要翻译： 变焦透镜包括为负的第一透镜组G1，为负的第二透镜组G2和为正的第三透镜组G3。 第一透镜组G1包括负的第一透镜L1和棱镜P，并且第二透镜组G2包括正的第二透镜L2和为负的第三透镜L3。 第三透镜组G3包括挡块ST，正的第四透镜L4和为负的第五透镜L5。 根据该结构，在从广角端到望远端的倍率变化时，固定第一透镜组G1，第二透镜组G2首先移动到像面侧，然后移动到物体侧，第三透镜​​组 透镜组G3直线移动到物体侧。

公开(公告)号：US08477435B2

公开(公告)日：2013-07-02

申请号：US13478762

申请日：2012-05-23

申请人： Yoji Kubota ,  Kenichi Kubota ,  Hitoshi Hirano ,  Ichiro Kurihara ,  Yoshio Ise ,  Sumio Fukuda

发明人： Yoji Kubota ,  Kenichi Kubota ,  Hitoshi Hirano ,  Ichiro Kurihara ,  Yoshio Ise ,  Sumio Fukuda

IPC分类号： G02B9/34 ,  G02B13/18

CPC分类号： G02B13/004 ,  G02B9/34 ,  G02B13/18

摘要： An imaging lens, although compact, has satisfactorily corrected aberrations. The imaging lens is configured by disposing, in sequence from the object side, a stop (ST); a first lens (L1), which has a double convex shape near the optical axis; a meniscus-shaped negative second lens (L2) which has near the optical axis a convex surface facing the object side; a meniscus-shaped positive third lens (L3) which has near the optical axis a concave surface facing the object side; and a positive fourth lens (L4) which has a double convex shape near the optical axis. In the configuration, the refractive power of the first lens (L1) is greater than the refractive power of each of the second lens (L2), the third lens (L3), and the fourth lens (L4).

摘要翻译： 成像透镜虽然紧凑，但令人满意地校正了像差。 成像透镜通过从物体侧依次设置止动件（ST）而构成; 第一透镜（L1），其在光轴附近具有双凸形状; 弯液面状的负第二透镜（L2），其在光轴附近具有面向物体侧的凸面; 在光轴附近具有面向物体侧的凹面的弯液面状的正的第三透镜（L3） 以及在光轴附近具有双凸形状的正的第四透镜（L4）。 在该结构中，第一透镜（L1）的屈光力大于第二透镜（L2），第三透镜​​（L3）和第四透镜（L4）中的每一个的折射力。

公开(公告)号：US20130057973A1

公开(公告)日：2013-03-07

申请号：US13597521

申请日：2012-08-29

申请人： Yoji Kubota ,  Kenichi Kubota ,  Hitoshi Hirano ,  Ichiro Kurihara ,  Yoshio Ise ,  Tomohiro Yonezawa

发明人： Yoji Kubota ,  Kenichi Kubota ,  Hitoshi Hirano ,  Ichiro Kurihara ,  Yoshio Ise ,  Tomohiro Yonezawa

IPC分类号： G02B9/60

CPC分类号： G02B13/0045 ,  G02B9/60 ,  G02B13/18

摘要： An imaging lens includes a first lens having positive refractive power; a second lens having negative refractive power; a third lens having positive refractive power; and a fourth and a fifth lens having negative refractive power. The first lens is formed so that a curvature radius of an object-side surface is positive and the second lens is formed so that a curvature radius of an object-side surface and a curvature radius of an image plane-side surface are positive. The third lens is formed so that a curvature radius of an object-side surface is positive, and the fifth lens is formed so that a curvature radius of an object-side surface and a curvature radius of an image plane-side surface are both positive. An Abbe's number from the first and the third to the fifth lens is greater than 45, and an Abbe's number of the second lens is less than 35.

摘要翻译： 成像透镜包括具有正折光力的第一透镜; 具有负屈光力的第二透镜; 具有正折射光焦度的第三透镜; 以及具有负屈光力的第四和第五透镜。 第一透镜被形成为使得物体侧表面的曲率半径为正，并且第二透镜形成为使得物体侧表面的曲率半径和像面侧表面的曲率半径为正。 第三透镜被形成为使得物体侧表面的曲率半径为正，并且第五透镜形成为使得物体侧表面的曲率半径和像面侧表面的曲率半径均为正 。 从第一和第三到第五透镜的阿贝数大于45，第二透镜的阿贝数小于35。

公开(公告)号：US20120293871A1

公开(公告)日：2012-11-22

申请号：US13455479

申请日：2012-04-25

申请人： Yoji KUBOTA ,  Kenichi Kubota ,  Hitoshi Hirano

发明人： Yoji KUBOTA ,  Kenichi Kubota ,  Hitoshi Hirano

IPC分类号： G02B15/177

CPC分类号： G02B15/173

摘要： A zoom lens includes a first lens group, a second lens group, a third lens group, and a fourth lens group. The first lens group includes a first lens that has positive refractive power, a second lens that has negative refractive power, and a prism. The second lens group includes a third lens that has positive refractive power and a fourth lens that has negative refractive power. The third lens group includes a stop, a fifth lens that has positive refractive power, and a sixth lens that has negative refractive power. The fourth lens group includes a seventh lens that has positive refractive power. Upon changing magnification from a wide-angle end to a telephoto end, the first and fourth lens groups are fixed, the second lens group first moves toward an image plane side and then moves toward an object side, and the third lens group linearly moves toward the object side.

摘要翻译： 变焦镜头包括第一透镜组，第二透镜组，第三透镜​​组和第四透镜组。 第一透镜组包括具有正屈光力的第一透镜，具有负屈光力的第二透镜和棱镜。 第二透镜组包括具有正折光力的第三透镜和具有负屈光力的第四透镜。 第三透镜组包括具有正屈光力的光阑，第五透镜和具有负屈光力的第六透镜。 第四透镜组包括具有正屈光力的第七透镜。 在从广角端到望远端的倍率变化时，第一透镜组和第四透镜组是固定的，第二透镜组首先朝向像平面侧移动，然后朝向物体侧移动，并且第三透镜组线性移动朝向 物体侧。

公开(公告)号：US07561774B2

公开(公告)日：2009-07-14

申请号：US10797053

申请日：2004-03-11

申请人： Keiichi Kuramoto ,  Hiroaki Izu ,  Mitsuaki Matsumoto ,  Youhei Nakagawa ,  Hitoshi Hirano ,  Nobuhiko Hayashi

发明人： Keiichi Kuramoto ,  Hiroaki Izu ,  Mitsuaki Matsumoto ,  Youhei Nakagawa ,  Hitoshi Hirano ,  Nobuhiko Hayashi

IPC分类号： G02B6/10

CPC分类号： G02B6/1221 ,  G02B6/138 ,  G02B2006/121

摘要： In the optical waveguide which comprises a core layer to be an optical transmission region and an upper clad layer and a lower clad layer covering the surrounding of the core layer and of which the upper clad layer is formed while being shrunk in the volume, a stress moderating layer formed a material with a smaller storage modulus than that of the upper clad layer is formed between the upper clad layer and the lower clad layer in at least a portion of a region where the upper clad layer and the lower clad layer are brought into contact with each other.

摘要翻译： 在包括作为光传输区域的芯层和覆盖芯层的周围的上覆盖层和下覆盖层的光波导中，并且在收缩体积时形成上覆盖层，应力 在上包层和下包层的区域的至少一部分中形成具有比上包层的储能模量小的材料的调节层形成在上包覆层和下包层之间 互相接触。

公开(公告)号：US07521725B2

公开(公告)日：2009-04-21

申请号：US11059648

申请日：2005-02-17

申请人： Youhei Nakagawa ,  Nobuhiko Hayashi ,  Keiichi Kuramoto ,  Mitsuaki Matsumoto ,  Hitoshi Hirano

发明人： Youhei Nakagawa ,  Nobuhiko Hayashi ,  Keiichi Kuramoto ,  Mitsuaki Matsumoto ,  Hitoshi Hirano

IPC分类号： H01L33/00

CPC分类号： G02B6/138

摘要： Disclosed herein is an optical waveguide comprising a core layer to be an optical waveguide region, an upper clad layer covering the core layer and a lower clad layer, characterized in that an ultraviolet control region for preventing ultraviolet light from entering is provided at any one location of under the lower clad layer, on an interface of the lower clad layer and the upper clad layer, and on the upper clad layer. And a method of fabricating this optical waveguide is also disclosed.

摘要翻译： 本文公开了一种光波导，其包括作为光波导区域的芯层，覆盖芯层的上覆层和下包层，其特征在于，在任何一个位置处设置用于防止紫外线进入的紫外线控制区域 在下包层的下面，在下包层和上包层的界面上，在上包层上。 并且还公开了制造该光波导的方法。