公开(公告)号：US07443599B2

公开(公告)日：2008-10-28

申请号：US11709529

申请日：2007-02-22

申请人： Tetsuo Kohno ,  Mamoru Terada ,  Yoshihito Souma

发明人： Tetsuo Kohno ,  Mamoru Terada ,  Yoshihito Souma

IPC分类号： G02B15/14

CPC分类号： G02B9/34 ,  G02B15/177

摘要： A magnification varying optical system that directs light from an object to an image sensor includes in order from the object side: a first lens unit having negative optical power and including an optical axis changing element that changes the optical axis; a second lens unit having positive optical power and including three lens elements; a third lens unit having negative optical power; and a fourth lens unit having positive optical power. In this magnification varying optical system, in magnification varying from the wide-angle end to the telephoto end, the first lens unit is stationary, the distance from the first lens unit to the second lens unit decreases, and the distance from the third lens unit to the fourth lens unit increases. The magnification varying optical system satisfies the specified conditions.

摘要翻译： 将来自物体的光引导到图像传感器的倍率变化的光学系统包括从物体侧开始的顺序：具有负光焦度并包括改变光轴的光轴变化元件的第一透镜单元; 具有正光焦度并包括三个透镜元件的第二透镜单元; 具有负光焦度的第三透镜单元; 以及具有正光焦度的第四透镜单元。 在该倍率变化的光学系统中，在从广角端到望远端的放大倍数中，第一透镜单元是静止的，从第一透镜单元到第二透镜单元的距离减小，并且距离第三透镜单元 到第四个镜头单元增加。 变倍光学系统满足规定的条件。

公开(公告)号：US20070091200A1

公开(公告)日：2007-04-26

申请号：US11388167

申请日：2006-03-23

申请人： Shinji Yamaguchi ,  Tetsuo Kohno ,  Genta Yagyu

发明人： Shinji Yamaguchi ,  Tetsuo Kohno ,  Genta Yagyu

IPC分类号： H04N5/232 ,  G03B13/00

CPC分类号： G03B17/17 ,  G02B5/04 ,  G02B15/17 ,  G02B15/173 ,  G03B17/04 ,  H04N5/2254 ,  H04N5/23212

摘要： An image-taking lens unit includes: a variable magnification optical system for forming an optical image of an object with a variable magnification; and an image sensor for converting the optical image into an electrical signal. The image-taking lens unit changes the shape-thereof between a photographing state and a non-photographing state. The variable magnification optical system has a plurality of lens groups for performing magnification variation by changing intervals therebetween and a reflective surface for bending an optical axis. At least one of the plurality of lens groups is a movable group that moves during magnification variation. The reflective surface is kept in fixed position during magnification variation or focusing. In transition from the photographing state to the non-photographing state, at least the reflective surface moves so that at least part of the movable group is stored into a space left after the movement of the reflective surface.

摘要翻译： 摄像透镜单元包括：用于以可变放大率形成物体的光学图像的可变放大率光学系统; 以及用于将光学图像转换成电信号的图像传感器。 拍摄镜头单元在拍摄状态和非拍摄状态之间改变其形状。 可变倍率光学系统具有多个透镜组，用于通过改变它们之间的间隔来进行放大变化，以及用于弯曲光轴的反射表面。 多个透镜组中的至少一个是在放大变化期间移动的可移动组。 反射表面在放大变化或聚焦期间保持固定位置。 在从拍摄状态到非拍摄状态的转变中，至少反射表面移动，使得可移动组的至少一部分被存储在反射表面的移动之后剩余的空间中。

公开(公告)号：US06400515B1

公开(公告)日：2002-06-04

申请号：US09493605

申请日：2000-01-28

申请人： Tetsuo Kohno

发明人： Tetsuo Kohno

IPC分类号： G02B1502

CPC分类号： G02B15/173

摘要： A method of converting a frame-format in a taking optical system comprises steps of arranging a plurality of lens units constituting the taking optical system except for the lens unit disposed at the object-side end or at the image-side end and determining the configuration of the lens unit disposed at the object-side end or at the image-side end based on the desired frame-format.

摘要翻译： 一种在拍摄光学系统中转换帧格式的方法包括以下步骤：布置构成拍摄光学系统的多个透镜单元，所述多个透镜单元除了设置在物体侧端部或图像侧端部处的透镜单元，并且确定构造 基于期望的帧格式设置在物体侧端部或图像侧端部处的透镜单元。

公开(公告)号：US6118592A

公开(公告)日：2000-09-12

申请号：US163121

申请日：1998-09-29

申请人： Tetsuo Kohno ,  Kenji Konno ,  Mamoru Terada ,  Tetsuya Arimoto ,  Takashi Okada ,  Kazuhiko Ishimaru

发明人： Tetsuo Kohno ,  Kenji Konno ,  Mamoru Terada ,  Tetsuya Arimoto ,  Takashi Okada ,  Kazuhiko Ishimaru

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

CPC分类号： G02B15/177

摘要： A zoom lens system has four or five lens units with the optical powers being +/-/+/- or +/-/+/+/-, respectively, from the object side. The image side lens unit has a negative optical power and is movable, along with at least one other lens unit, in a zooming operation. The zoom lens system satisfies the following conditions: 0.6

摘要翻译： 变焦透镜系统具有四个或五个透镜单元，其光学功率分别为+ / - / + / - 或+ / - / + / + / - 。 图像侧透镜单元具有负光学功率，并且能够与缩放操作中的至少一个其它透镜单元一起移动。 变焦透镜系统满足以下条件：0.6

公开(公告)号：US6081385A

公开(公告)日：2000-06-27

申请号：US112368

申请日：1998-07-09

申请人： Kenji Konno ,  Tetsuo Kohno ,  Hitoshi Hagimori

发明人： Kenji Konno ,  Tetsuo Kohno ,  Hitoshi Hagimori

IPC分类号： G02B15/173 ,  G02B27/00 ,  G02B27/14 ,  G02B27/64

CPC分类号： G02B27/0025 ,  G02B15/173 ,  G02B27/0012

摘要： An optical system design method determines a specific optical group having a relatively high decentering aberration error sensitivity to parallel decentering and tilt decentering, and minimizes the absolute value of the decentering aberration coefficient of that group. In a first stage, an optical system group consisting of at least one lens surface is identified which presents a problem in production because of a relatively high centering error sensitivity. A second stage calculates decentering aberration using a decentering aberration coefficient of the group identified in the first stage, and compares a decentering aberration that is obtained by the calculation with actual decentering aberration. A third stage identifies a third order aberration coefficient that makes a major contribution to increased centering error sensitivity when it is determined as the result of the comparison in the second stage that there is good agreement between the decentering aberration obtained by the calculation and the actual decentering aberration. A fourth stage minimizes the third order aberration coefficient identified in the third stage. A fifth stage restores an aberration balance that varied as a result of the design in the fourth stage, so that overall performance is maintained at a level equivalent to the condition before the design in the fourth stage.

摘要翻译： 光学系统设计方法确定对平行偏心和倾斜偏心具有相对高的偏心像差误差灵敏度的特定光学组，并使该组的偏心像差系数的绝对值最小化。 在第一阶段中，由至少一个透镜表面组成的光学系统组被识别，由于相对较高的定心误差灵敏度，这导致了生产中的问题。 第二级使用在第一级中识别的组的偏心像差系数来计算偏心像差，并将通过计算获得的偏心像差与实际偏心像差进行比较。 第三阶段确定了在确定第二阶段的比较结果时，通过计算获得的偏心像差与实际偏心度之间存在良好一致性，对增加的对中误差灵敏度做出主要贡献的三阶像差系数 像差 第四级将在第三级中识别的三阶像差系数最小化。 第五阶段恢复由于第四阶段中的设计而变化的像差平衡，使得整体性能保持在与第四阶段中的设计之前的条件相当的水平。

公开(公告)号：US6002529A

公开(公告)日：1999-12-14

申请号：US694540

申请日：1996-08-09

申请人： Tetsuo Kohno ,  Takashi Okada

发明人： Tetsuo Kohno ,  Takashi Okada

IPC分类号： G02B15/173 ,  G02B15/14

CPC分类号： G02B15/173

摘要： A zoom lens system for use in a compact lens shutter camera has excellent optical properties at a high zoom ratio of 4-5 across the entire zoom range with a small number of lenses. The zoom lens system has, from the object side to the image side, a positive first lens unit, a negative second lens unit, a positive third lens unit and a negative fourth lens unit, wherein the air spaces between each lens unit vary during a zooming operation. The zoom lens system fulfills predetermined conditions related to the back focal distance, the shifting amount of the second and third lens units during zooming and the thickness of the third lens unit.

摘要翻译： 用于紧凑型镜头快门摄像机的变焦透镜系统在整个变焦范围内的高变焦比下具有优异的光学特性，并具有少量的透镜。 变焦透镜系统从物体侧到像侧具有正的第一透镜单元，负的第二透镜单元，正的第三透镜单元和负的第四透镜单元，其中每个透镜单元之间的空气间隔在 缩放操作。 变焦透镜系统满足与后焦距，变焦期间的第二和第三透镜单元的移动量以及第三透镜单元的厚度相关的预定条件。

公开(公告)号：US5999324A

公开(公告)日：1999-12-07

申请号：US868599

申请日：1997-06-04

申请人： Tetsuo Kohno ,  Takashi Okada ,  Hideki Nagata

发明人： Tetsuo Kohno ,  Takashi Okada ,  Hideki Nagata

IPC分类号： G02B13/04 ,  G02B27/10 ,  G02B9/00

CPC分类号： G02B13/04

摘要： An optical system focuses an object upon an image surface of a solid-state image device. The optical system has a master optical system and a condenser lens. The master optical system and the condenser lens both have positive optical power. The focusing optical system fulfills the following conditions: ##EQU1## where a represents the distance between the exit pupil of the master optical system and the image surface;b represents the distance between the exit pupil of the entire optical system and the image surface; andY' represents the maximum image height.

摘要翻译： 光学系统将物体聚焦在固态图像装置的图像表面上。 光学系统具有主光学系统和聚光透镜。 主光学系统和聚光透镜都具有正光学功率。 聚焦光学系统满足以下条件：其中a表示主光学系统的出射光瞳和图像表面之间的距离; b表示整个光学系统的出射光瞳和图像表面之间的距离; Y'表示最大图像高度。

公开(公告)号：US07692869B2

公开(公告)日：2010-04-06

申请号：US11388167

申请日：2006-03-23

申请人： Shinji Yamaguchi ,  Tetsuo Kohno ,  Genta Yagyu

发明人： Shinji Yamaguchi ,  Tetsuo Kohno ,  Genta Yagyu

IPC分类号： G02B15/14

CPC分类号： G03B17/17 ,  G02B5/04 ,  G02B15/17 ,  G02B15/173 ,  G03B17/04 ,  H04N5/2254 ,  H04N5/23212

摘要： An image-taking lens unit includes: a variable magnification optical system for forming an optical image of an object with a variable magnification; and an image sensor for converting the optical image into an electrical signal. The image-taking lens unit changes the shape thereof between a photographing state and a non-photographing state. The variable magnification optical system has a plurality of lens groups for performing magnification variation by changing intervals therebetween and a reflective surface for bending an optical axis. At least one of the plurality of lens groups is a movable group that moves during magnification variation. The reflective surface is kept in fixed position during magnification variation or focusing. In transition from the photographing state to the non-photographing state, at least the reflective surface moves so that at least part of the movable group is stored into a space left after the movement of the reflective surface.

摘要翻译： 摄像透镜单元包括：用于以可变放大率形成物体的光学图像的可变放大率光学系统; 以及用于将光学图像转换成电信号的图像传感器。 摄像镜头单元在拍摄状态和非拍摄状态之间改变其形状。 可变倍率光学系统具有多个透镜组，用于通过改变它们之间的间隔来进行放大变化，以及用于弯曲光轴的反射表面。 多个透镜组中的至少一个是在放大变化期间移动的可移动组。 反射表面在放大变化或聚焦期间保持固定位置。 在从拍摄状态到非拍摄状态的转变中，至少反射表面移动，使得可移动组的至少一部分被存储在反射表面的移动之后剩余的空间中。

公开(公告)号：US07408583B2

公开(公告)日：2008-08-05

申请号：US10611016

申请日：2003-07-01

申请人： Yoshito Iwasawa ,  Takashi Okada ,  Tetsuo Kohno

发明人： Yoshito Iwasawa ,  Takashi Okada ,  Tetsuo Kohno

IPC分类号： H04N5/225 ,  H04N5/232 ,  H04N5/262

CPC分类号： G02B13/0045 ,  G02B13/006 ,  G02B13/009 ,  G02B15/177

摘要： A taking lens apparatus includes a zoom lens system that is composed of a plurality of lens units and that achieves zooming by varying the distances between the lens units and an image sensor that converts the optical image formed by the zoom lens system into an electrical signal. The zoom lens system has, from the object side,: a first lens unit having a negative optical power, a second lens unit disposed on the image side of the first lens unit and having a negative optical power, a third lens unit disposed on the image side of the second lens unit and having a positive optical power, a fourth lens unit disposed on the image side of the third lens unit and having a positive optical power, and a fifth lens unit disposed on the image side of the fourth lens unit and having a positive optical power. During zooming, the first lens unit remains stationary relative to the image sensor, and the second and third lens units move.

摘要翻译： 拍摄透镜装置包括变焦透镜系统，该变焦透镜系统由多个透镜单元组成，并且通过改变透镜单元之间的距离和将由变焦透镜系统形成的光学图像转换为电信号的图像传感器来实现变焦。 变焦透镜系统从物体侧具有：具有负光焦度的第一透镜单元，设置在第一透镜单元的像侧并具有负光焦度的第二透镜单元，设置在第一透镜单元上的第三透镜单元 所述第二透镜单元的像侧具有正光焦度;第四透镜单元，设置在所述第三透镜单元的像侧且具有正光焦度;以及第五透镜单元，设置在所述第四透镜单元的像侧 并具有正光焦度。 在变焦期间，第一透镜单元相对于图像传感器保持静止，并且第二和第三透镜单元移动。

公开(公告)号：US07369326B2

公开(公告)日：2008-05-06

申请号：US11593357

申请日：2006-11-06

申请人： Genta Yagyu ,  Tetsuo Kohno ,  Shinji Yamaguchi

发明人： Genta Yagyu ,  Tetsuo Kohno ,  Shinji Yamaguchi

IPC分类号： G02B15/14 ,  H04N5/262

CPC分类号： G02B15/173 ,  G02B7/102

摘要： A compact bent zooming imaging optical system characterized by sufficient aberration correction. The imagining optical system contains, in order from the object, a first lens group having positive refractive power, a second lens group with negative power which has a reflective optical element for bending the optical axis and lenses on each of the object side and the image side of the reflective optical element, and a following lens group. At least the aforementioned first lens group and following lens group are moved to change in the magnification. −0.6

摘要翻译： 特征在于足够的像差校正的紧凑型弯曲成像光学系统。 该想象光学系统从物体起依次包含具有正折光力的第一透镜组，具有负光焦度的第二透镜组，其具有用于弯曲光轴的反射光学元件和每个物体侧上的透镜和图像 反射光学元件的一侧，以及后面的透镜组。 至少上述第一透镜组和后续透镜组移动以改变放大率。 -0.6