公开(公告)号：US07023625B2

公开(公告)日：2006-04-04

申请号：US10935112

申请日：2004-09-08

申请人： Norihiro Nanba ,  Koji Hoshi ,  Hiroyuki Hamano ,  Makoto Sekita

发明人： Norihiro Nanba ,  Koji Hoshi ,  Hiroyuki Hamano ,  Makoto Sekita

IPC分类号： G02B15/14

CPC分类号： G02B15/177

摘要： A zoom lens, including, in order from an object side to an image side (a) a first lens unit of negative optical power, (b) a second lens unit of positive optical power, and (c) a third lens unit of positive optical power, wherein a separation between the first lens unit and the second lens unit and a separation between the second lens unit and the third lens unit are varied to effect variation of magnification, and wherein, during the variation of magnification from a wide-angle end to a telephoto end with an infinitely distant object focused on, the third lens unit moves monotonically toward the image side or moves with a locus convex toward the image side.

公开(公告)号：US20050041303A1

公开(公告)日：2005-02-24

申请号：US10935112

申请日：2004-09-08

申请人： Norihiro Nanba ,  Koji Hoshi ,  Hiroyuki Hamano ,  Makoto Sekita

发明人： Norihiro Nanba ,  Koji Hoshi ,  Hiroyuki Hamano ,  Makoto Sekita

IPC分类号： G02B15/00 ,  G02B15/177 ,  G02B15/14

CPC分类号： G02B15/177

摘要： A zoom lens is constructed with, in order from an object side to an image side, a first lens unit of negative optical power, the first lens unit including a negative meniscus lens having a concave surface facing the image side and a positive meniscus lens having a convex surface facing the object side, a second lens unit of positive optical power, the second lens unit including a cemented lens of positive optical power as a whole disposed on the most image side of the second lens unit, and a lens having a concave surface facing the image side and adjoining a surface on the object side of the cemented lens, and a third lens unit of positive optical power, wherein a separation between the first lens unit and the second lens unit and a separation between the second lens unit and the third lens unit are varied to effect variation of magnification.

公开(公告)号：US07113347B2

公开(公告)日：2006-09-26

申请号：US10934392

申请日：2004-09-07

申请人： Norihiro Nanba ,  Koji Hoshi ,  Hiroyuki Hamano ,  Makoto Sekita

发明人： Norihiro Nanba ,  Koji Hoshi ,  Hiroyuki Hamano ,  Makoto Sekita

IPC分类号： G02B15/14

CPC分类号： G02B15/177

摘要： A zoom lens, including, in order from an object side to an image side (a) a first lens unit of negative optical power, (b) a second lens unit of positive optical power, and (c) a third lens unit of positive optical power, wherein a separation between the first lens unit and the second lens unit and a separation between the second lens unit and the third lens unit are varied to effect variation of magnification, and wherein the zoom lens satisfies the following conditions: ndp3 70.0, where ndp3 and vdp3 are a refractive index and Abbe number, respectively, of material of the positive lens in the third lens unit.

摘要翻译： 一种变焦透镜，包括从物体侧到图像侧的顺序（a）具有负光焦度的第一透镜单元，（b）具有正光焦度的第二透镜单元，以及（c）具有正光焦度的第三透镜单元 光功率，其中第一透镜单元和第二透镜单元之间的间隔以及第二透镜单元和第三透镜单元之间的间隔被改变以实现放大率的变化，并且其中变焦透镜满足以下条件：ndp 3 < 1.5和vdp 3> 70.0，其中ndp 3和vdp 3分别是第三透镜单元中的正透镜的材料的折射率和阿贝数。

公开(公告)号：US06999242B2

公开(公告)日：2006-02-14

申请号：US10935225

申请日：2004-09-08

申请人： Norihiro Nanba ,  Koji Hoshi ,  Hiroyuki Hamano ,  Makoto Sekita

发明人： Norihiro Nanba ,  Koji Hoshi ,  Hiroyuki Hamano ,  Makoto Sekita

IPC分类号： G02B15/14

CPC分类号： G02B15/177

摘要： A zoom lens, including, in order from an object side to an image side (a) a first lens unit of negative optical power, the first lens unit consisting of, in order from the object side to the image side, a negative lens and a positive lens, (b) a second lens unit of positive optical power, and (c) a third lens unit of positive optical power, wherein a separation between the first lens unit and the second lens unit and a separation between the second lens unit and the third lens unit are varied to effect variation of magnification, wherein, during the variation of magnification from a wide-angle end to a telephoto end with an infinitely distant object focused on, the third lens unit moves monotonically toward the image side or moves with a locus convex toward the image side.

摘要翻译： 一种变焦透镜，包括从物体侧到图像侧的顺序（a）具有负光焦度的第一透镜单元，所述第一透镜单元从物体侧到像侧依次由负透镜和 正透镜，（b）正光焦度的第二透镜单元，以及（c）具有正光焦度的第三透镜单元，其中，第一透镜单元和第二透镜单元之间的间隔以及第二透镜单元之间的间隔 并且第三透镜单元被改变以实现放大率的变化，其中，在从广角端到远摄端的放大变化中，无限遥远的物体聚焦时，第三透镜​​单元朝向像侧单调移动或移动 具有向图像侧凸出的轨迹。

公开(公告)号：US06822808B2

公开(公告)日：2004-11-23

申请号：US10195364

申请日：2002-07-16

申请人： Norihiro Nanba ,  Koji Hoshi ,  Hiroyuki Hamano ,  Makoto Sekita

发明人： Norihiro Nanba ,  Koji Hoshi ,  Hiroyuki Hamano ,  Makoto Sekita

IPC分类号： G02B1514

CPC分类号： G02B15/177

摘要： A zoom lens is constructed with, in order from an object side to an image side, a first lens unit of negative optical power, the first lens unit including a negative meniscus lens having a concave surface facing the image side and a positive meniscus lens having a convex surface facing the object side, a second lens unit of positive optical power, the second lens unit including a cemented lens of positive optical power as a whole disposed on the most image side of the second lens unit, and a lens having a concave surface facing the image side and adjoining a surface on the object side of the cemented lens, and a third lens unit of positive optical power, wherein a separation between the first lens unit and the second lens unit and a separation between the second lens unit and the third lens unit are varied to effect variation of magnification.

摘要翻译： 变焦透镜从物体侧到像侧依次构成具有负光焦度的第一透镜单元，第一透镜单元包括具有面向图像侧的凹面的负弯月形透镜和具有面向像侧的正弯月形透镜， 面向物体侧的凸面，具有正光焦度的第二透镜单元，第二透镜单元整体设置在第二透镜单元的最像侧的正光焦度透镜，以及具有凹面的透镜 表面朝向图像侧并与胶合透镜的物体侧上的表面相邻，以及具有正光焦度的第三透镜单元，其中第一透镜单元和第二透镜单元之间的间隔以及第二透镜单元与第二透镜单元之间的间隔 变化第三透镜单元以实现放大率的变化。

公开(公告)号：US06545819B1

公开(公告)日：2003-04-08

申请号：US09650861

申请日：2000-08-29

申请人： Norihiro Nanba ,  Koji Hoshi ,  Hiroyuki Hamano ,  Makoto Sekita

发明人： Norihiro Nanba ,  Koji Hoshi ,  Hiroyuki Hamano ,  Makoto Sekita

IPC分类号： G02B1514

CPC分类号： G02B15/177

摘要： A zoom lens is constructed with, in order from an object side to an image side, a first lens unit of negative optical power, the first lens unit including a negative meniscus lens having a concave surface facing the image side and a positive meniscus lens having a convex surface facing the object side, a second lens unit of positive optical power, the second lens unit including a cemented lens of positive optical power as a whole disposed on the most image side of the second lens unit, and a lens having a concave surface facing the image side and adjoining a surface on the object side of the cemented lens, and a third lens unit of positive optical power, wherein a separation between the first lens unit and the second lens unit and a separation between the second lens unit and the third lens unit are varied to effect variation of magnification.

摘要翻译： 变焦透镜从物体侧到像侧依次构成具有负光焦度的第一透镜单元，第一透镜单元包括具有面向图像侧的凹面的负弯月形透镜和具有面向像侧的正弯月形透镜， 面向物体侧的凸面，具有正光焦度的第二透镜单元，第二透镜单元整体设置在第二透镜单元的最像侧的正光焦度透镜，以及具有凹面的透镜 表面朝向图像侧并与胶合透镜的物体侧上的表面相邻，以及具有正光焦度的第三透镜单元，其中第一透镜单元和第二透镜单元之间的间隔以及第二透镜单元与第二透镜单元之间的间隔 变化第三透镜单元以实现放大率的变化。

公开(公告)号：US07450318B2

公开(公告)日：2008-11-11

申请号：US11427548

申请日：2006-06-29

申请人： Norihiro Nanba ,  Koji Hoshi ,  Hiroyuki Hamano ,  Makoto Sekita

发明人： Norihiro Nanba ,  Koji Hoshi ,  Hiroyuki Hamano ,  Makoto Sekita

IPC分类号： G02B15/14

CPC分类号： G02B15/177

摘要： A zoom lens, including, in order from an object side to an image side (a) a first lens unit of negative optical power, (b) a second lens unit of positive optical power, and (c) a third lens unit of positive optical power, wherein a separation between the first lens unit and the second lens unit and a separation between the second lens unit and the third lens unit are varied to effect variation of magnification, and wherein the zoom lens satisfies the following conditions: ndp3 70.0, where ndp3 and νdp3 are a refractive index and Abbe number, respectively, of material of the positive lens in the third lens unit.

摘要翻译： 一种变焦透镜，包括从物体侧到图像侧的顺序（a）具有负光焦度的第一透镜单元，（b）具有正光焦度的第二透镜单元，以及（c）具有正光焦度的第三透镜单元 光功率，其中第一透镜单元和第二透镜单元之间的间隔以及第二透镜单元和第三透镜单元之间的间隔被改变以实现放大率的变化，并且其中变焦透镜满足以下条件：ndp3 <1.5 和nudp3> 70.0，其中ndp3和nudp3分别是第三透镜单元中正透镜的材料的折射率和阿贝数。

公开(公告)号：US20060238890A1

公开(公告)日：2006-10-26

申请号：US11427548

申请日：2006-06-29

申请人： Norihiro Nanba ,  Koji Hoshi ,  Hiroyuki Hamano ,  Makoto Sekita

发明人： Norihiro Nanba ,  Koji Hoshi ,  Hiroyuki Hamano ,  Makoto Sekita

IPC分类号： G02B15/14

CPC分类号： G02B15/177

摘要： A zoom lens, including, in order from an object side to an image side (a) a first lens unit of negative optical power, (b) a second lens unit of positive optical power, and (c) a third lens unit of positive optical power, wherein a separation between the first lens unit and the second lens unit and a separation between the second lens unit and the third lens unit are varied to effect variation of magnification, and wherein the zoom lens satisfies the following conditions: ndp3 70.0, where ndp3 and νdp3 are a refractive index and Abbe number, respectively, of material of the positive lens in the third lens unit.

摘要翻译： 一种变焦透镜，包括从物体侧到图像侧的顺序（a）具有负光焦度的第一透镜单元，（b）具有正光焦度的第二透镜单元，以及（c）具有正光焦度的第三透镜单元 光功率，其中第一透镜单元和第二透镜单元之间的间隔以及第二透镜单元和第三透镜单元之间的间隔被改变以实现放大率的变化，并且其中变焦透镜满足以下条件：ndp3 <1.5 和nudp3> 70.0，其中ndp3和nudp3分别是第三透镜单元中正透镜的材料的折射率和阿贝数。

公开(公告)号：US07113348B2

公开(公告)日：2006-09-26

申请号：US11237806

申请日：2005-09-29

申请人： Norihiro Nanba ,  Koji Hoshi ,  Hiroyuki Hamano ,  Makoto Sekita

发明人： Norihiro Nanba ,  Koji Hoshi ,  Hiroyuki Hamano ,  Makoto Sekita

IPC分类号： G02B15/14

CPC分类号： G02B15/177

摘要： A zoom lens, including, in order from an object side to an image side (a) a first lens unit of negative optical power, (b) a second lens unit of positive optical power, and (c) a third lens unit of positive optical power, wherein a separation between the first lens unit and the second lens unit and a separation between the second lens unit and the third lens unit are varied to effect variation of magnification, and wherein, during the variation of magnification from a wide-angle end to a telephoto end with an infinitely distant object focused on, the third lens unit moves monotonically toward the image side or moves with a locus convex toward the image side.

公开(公告)号：US20060238889A1

公开(公告)日：2006-10-26

申请号：US11427546

申请日：2006-06-29

申请人： Norihiro Nanba ,  Koji Hoshi ,  Hiroyuki Hamano ,  Makoto Sekita

发明人： Norihiro Nanba ,  Koji Hoshi ,  Hiroyuki Hamano ,  Makoto Sekita

IPC分类号： G02B15/14

CPC分类号： G02B15/177

摘要： A zoom lens, comprising, in order from an object side to an image side: (a) a first lens unit of negative optical power; (b) a second lens unit of positive optical power; and (c) a third lens unit of positive optical power, wherein a separation between the first lens unit and the second lens unit and a separation between the second lens unit and the third lens unit are varied during zooming, and wherein, during zooming from a wide-angle end to a telephoto end, the first lens unit moves so that its motion comprises (a) moving toward the image side and (b) moving thereafter toward the object side, and the third lens unit moves so that its motion comprises (a) moving toward the image side and (b) moving thereafter toward the object side.

摘要翻译： 一种变焦透镜，包括从物体侧到像侧的顺序：（a）负光焦度的第一透镜单元; （b）具有正光焦度的第二透镜单元; 以及（c）正光焦度的第三透镜单元，其中在变焦期间，第一透镜单元和第二透镜单元之间的间隔以及第二透镜单元与第三透镜单元之间的间隔变化，并且其中， 与望远端的广角端，第一透镜单元移动，使得其运动包括（a）朝向图像侧移动，（b）朝向物体侧移动，并且第三透镜单元移动，使得其运动包括 （a）向图像侧移动，（b）朝向物体侧移动。