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：US06191895B1

公开(公告)日：2001-02-20

申请号：US09165452

申请日：1998-10-02

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

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

IPC分类号： G02B1514

CPC分类号： G02B15/173

摘要： A zoom lens system has, from the object side, a first lens unit having a optical power, a second lens unit having a negative optical power a third lens unit having a positive optical power, and a succeeding lens unit. The first and the third lens units monotonically move toward the object side during zooming from the shortest focal length condition to the longest focal length condition. A number of predetermined conditions are disclosed which can be satisfied to ensure a high quality, compact zoom lens for a digital camera.

摘要翻译： 变焦透镜系统从物体侧具有具有光焦度的第一透镜单元，具有负光焦度的第二透镜单元，具有正光焦度的第三透镜单元和后续透镜单元。 第一透镜单元和第三透镜单元在从最短焦距条件到最长焦距条件的变焦期间单调地向物体侧移动。 公开了可以满足多个预定条件以确保用于数码相机的高品质紧凑变焦镜头。

公开(公告)号：US6038084A

公开(公告)日：2000-03-14

申请号：US170831

申请日：1998-10-13

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

发明人： Takashi Okada ,  Tetsuya Arimoto ,  Mamoru Terada ,  Kenji Konno ,  Tetsuo Kohno ,  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 at least three lens units of, from the most object side, a first lens unit having a negative optical power, a second lens unit having a positive optical power and a third lens unit, wherein the distances between the lens units are varied by moving all of the lens units during zooming. The zoom lens system satisfies the predetermined mathematical condition.

摘要翻译： 变焦透镜系统具有至少三个透镜单元，从最物体侧起，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第三透镜单元，其中透镜单元 通过在变焦期间移动所有镜头单元来改变。 变焦透镜系统满足预定的数学条件。

公开(公告)号：US5257135A

公开(公告)日：1993-10-26

申请号：US770085

申请日：1991-09-30

申请人： Tetsuo Kohno ,  Takashi Okada ,  Tetsuya Arimoto ,  Hiroyuki Matsumoto

发明人： Tetsuo Kohno ,  Takashi Okada ,  Tetsuya Arimoto ,  Hiroyuki Matsumoto

IPC分类号： G02B15/173 ,  G02B15/14 ,  G02B13/18

CPC分类号： G02B15/173

摘要： A compact zoom lens system comprises from the object side: a first lens component of a positive refractive power; a second lens component of a negative refractive power with a variable air space between the first and second lens components; and a third lens component of a positive refractive power with a variable air space between the second and third lens components. A plurality of aspherical surfaces are employed for the realization of a compact and low-cost zoom lens system. Furthermore, a focusing operation is carried out by both of the first and second lens components or third lens component.

摘要翻译： 一种紧凑型变焦透镜系统，包括：物体侧：正屈光力的第一透镜部件; 具有在第一和第二透镜部件之间具有可变空气空间的负折光力的第二透镜部件; 以及具有在第二和第三透镜部件之间具有可变空气空间的正折光力的第三透镜部件。 多个非球面用于实现紧凑且低成本的变焦透镜系统。 此外，由第一和第二透镜部件或第三透镜部件两者进行聚焦操作。

公开(公告)号：US06215603B1

公开(公告)日：2001-04-10

申请号：US09226875

申请日：1999-01-07

申请人： Tetsuo Kohno ,  Masashi Isono ,  Tomoo Doi ,  Hiromu Mukai ,  Kazuhiko Ishimaru

发明人： Tetsuo Kohno ,  Masashi Isono ,  Tomoo Doi ,  Hiromu Mukai ,  Kazuhiko Ishimaru

IPC分类号： B02B702

CPC分类号： G02B15/173 ,  G02B7/10

摘要： A lens holding structure in a lens block forming all or part of an optical system, the lens holding structure capable of attaining a compact lens block of inexpensive and simple construction by using a holding barrel having an outer diameter smaller than an outer diameter of the largest lens element to be included in the lens block. The largest lens element is fixed to another lens element to be included in the lens block or the holding barrel by a face thereof having a predetermined angle with respect to an optical axis of the lens block.

摘要翻译： 一种形成光学系统的全部或一部分的透镜块中的透镜保持结构，透镜保持结构能够通过使用外径小于最大外径的保持筒来获得廉价且简单的结构的紧凑型透镜块 透镜元件被包括在透镜块中。 最大的透镜元件通过其相对于透镜块的光轴具有预定角度的面被固定到另一个透镜元件以包括在透镜块或保持筒中。

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：US20070201143A1

公开(公告)日：2007-08-30

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：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。