公开(公告)号：US07551355B2

公开(公告)日：2009-06-23

申请号：US11984902

申请日：2007-11-26

申请人： Yoshito Iwasawa

发明人： Yoshito Iwasawa

IPC分类号： G02B27/64

CPC分类号： G02B15/173 ,  G02B27/646

摘要： Disclosed is a zoom lens which is composed of a plurality of groups of lenses and which varies the power thereof by changing inter-group spacings. The zoom lens is configured such that: the last group of lenses that is located at the end of an image space and is negatively refractive is held stationary in optical-axis directions during variation of the power of the zoom lens, and includes a front group of negative lenses and a rear group of positive lenses; and the rear group of positive lenses or part of the rear group of positive lenses (hereinafter, referred to as a group of blur compensation lenses) is movable in directions orthogonal to the optical axis of the zoom lens. In this configuration, the group of blur compensation lenses is moved in the directions orthogonal to the optical axis in order to shift an image.

摘要翻译： 公开了一种由多组透镜组成并通过改变组间距而改变其功率的变焦透镜。 变焦透镜被配置为使得：位于图像空间的端部并且是负折射的最后一组透镜在变焦透镜的功率变化期间在光轴方向上保持静止，并且包括前组 的负透镜和后组的正透镜; 并且正透镜的后组或后透镜组的一部分（以下称为一组模糊补偿透镜）可在与变焦透镜的光轴正交的方向上移动。 在该配置中，为了移动图像，使该组模糊补偿透镜沿与光轴正交的方向移动。

公开(公告)号：US07405887B2

公开(公告)日：2008-07-29

申请号：US10556753

申请日：2005-02-15

申请人： Yoshito Iwasawa

发明人： Yoshito Iwasawa

IPC分类号： G02B15/14 ,  G02B17/00

CPC分类号： G02B15/177 ,  G02B5/04

摘要： The present invention is directed to a zoom lens used for image pick-up optical system of digital still camera, or video camera, and is composed, in order from the object side, of a first group GR1 including a reflection member for bending or folding the optical axis and having negative refractive power, a second group GR2 having negative refractive power, a third group GR3 having positive refractive power, and a fourth group GR4 having positive refractive power, wherein a light quantity adjustment member ST1 for adjusting light quantity is fixed during zooming operation.

摘要翻译： 本发明涉及一种用于数字静态照相机或摄像机的摄像光学系统的变焦透镜，并且从物体侧起依次包括第一组GR1，其包括用于弯曲的反射构件或 折叠光轴并具有负屈光力，具有负屈光力的第二组GR 2，具有正折光力的第三组GR 3和具有正屈光力的第四组GR 4，其中，用于 在变焦操作期间调整光量是固定的。

公开(公告)号：US07248293B2

公开(公告)日：2007-07-24

申请号：US10390360

申请日：2003-03-17

申请人： Yoshito Iwasawa

发明人： Yoshito Iwasawa

IPC分类号： H04N5/262

CPC分类号： G02B13/0045 ,  G02B13/006 ,  G02B13/0065 ,  G02B13/009 ,  G02B15/173 ,  H04N5/2254

摘要： An image-sensing apparatus has a zoom lens system for forming an optical image of an object with variable magnification, which zoom lens system includes a plurality of lens units and achieves zooming by varying distances between the lens units, and an image sensor for converting 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 that has a positive optical power, includes a reflective member for turning the optical path, and is kept stationary relative to the image sensor during zooming, a second lens unit that is disposed on the image side of the first lens unit and has a negative optical power, an aperture stop that is disposed on the image side of the second lens unit and is kept stationary relative to the image sensor during zooming, and at least one lens unit that is disposed on the image side of the aperture stop and is moved relative to the image sensor during zooming.

摘要翻译： 一种图像感测装置具有变焦透镜系统，用于形成具有可变放大倍率的物体的光学图像，该变焦透镜系统包括多个透镜单元，并且通过改变透镜单元之间的距离实现变焦，以及用于转换 由变焦透镜系统形成的光学图像变成电信号。 变焦透镜系统从对象侧具有具有正光焦度的第一透镜单元，包括用于转动光路的反射构件，并且在变焦期间相对于图像传感器保持静止;第二透镜单元， 设置在第一透镜单元的像侧并具有负光焦度，设置在第二透镜单元的像侧并在变焦期间相对于图像传感器保持静止的孔径光阑，以及至少一个透镜单元 其设置在孔径光阑的图像侧，并且在变焦期间相对于图像传感器移动。

公开(公告)号：US20070139786A1

公开(公告)日：2007-06-21

申请号：US10569232

申请日：2004-08-27

申请人： Yoshito Iwasawa

发明人： Yoshito Iwasawa

IPC分类号： G02B15/14

CPC分类号： G02B13/009 ,  G02B13/0045 ,  G02B13/006 ,  G02B13/007 ,  G02B15/173

摘要： Provided is a zoom lens allows size reduction in the depth direction and compactness. The zoom lens includes a plurality of lens groups (GR1 to GR5) and performs zooming by changing an inter-group distance. Of the plurality of lens groups (GR1 to GR5), a first lens group (GR1) on the most object side has a positive refractive power and is fixed. A reflection member for bending an optical axis is provided in the first lens group (GR1) and the reflection member is formed of a rectangular prism (P) having a negative refractive power. In addition, an imaging apparatus using the zoom lens is provided.

摘要翻译： 提供了一种变焦镜头，使得深度方向的尺寸减小和紧凑。 变焦透镜包括多个透镜组（GR 1至GR 5），并且通过改变组间距离进行变焦。 在多个透镜组（GR 1〜GR 5）中，最物体侧的第一透镜组（GR 1）具有正屈光力并固定。 在第一透镜组（GR1）中设置用于弯曲光轴的反射部件，反射部件由具有负折光力的矩形棱镜（P）形成。 此外，提供了使用变焦透镜的成像装置。

公开(公告)号：US07209298B2

公开(公告)日：2007-04-24

申请号：US11505830

申请日：2006-08-18

申请人： Yoshito Iwasawa ,  Nobuyuki Adachi ,  Masayuki Murata

发明人： Yoshito Iwasawa ,  Nobuyuki Adachi ,  Masayuki Murata

IPC分类号： G02B15/14

CPC分类号： G02B15/177

摘要： A zoom lens having a first lens group having a negative refractive power, a second lens group having a positive refractive power, and a third lens group having a positive refractive power arranged in the order from an object side, wherein the first lens group includes a negative lens and a positive lens having at least one aspherical surface arranged from the object side and satisfies the following condition: 0.4

摘要翻译： 具有负屈光力的第一透镜组的变焦透镜，具有正折光力的第二透镜组和具有从物体侧开始顺序排列的正折光力的第三透镜组，其中第一透镜组包括： 负透镜和具有从物体侧排列的至少一个非球面的正透镜，并且满足以下条件：0.4

公开(公告)号：US07180675B2

公开(公告)日：2007-02-20

申请号：US10926316

申请日：2004-08-26

申请人： Masaki Tamura ,  Yoshito Iwasawa

发明人： Masaki Tamura ,  Yoshito Iwasawa

IPC分类号： G02B25/00 ,  G02B17/00

CPC分类号： G02B23/14

摘要： A viewfinder of a small size and a small thickness is implemented to achieve a miniaturization and reduction in thickness of an image pickup apparatus. The viewfinder includes an eyepiece system for expanding an image displayed on an image display element so as to be visually observed. The eyepiece includes a first single lens disposed adjacent to the image display element and having a negative refractive power and a second single lens disposed remotely from the image display element and having a positive refractive power. A reflecting member is disposed between the first single lens and the second single lens for diverting an optical axis to a predetermined direction.

摘要翻译： 实现小尺寸和小厚度的取景器以实现图像拾取装置的厚度的小型化和减小。 取景器包括用于展开图像显示元件上显示的图像以便目视观察的目镜系统。 目镜包括与图像显示元件相邻设置并具有负折光力的第一单透镜和远离图像显示元件设置并具有正屈光力的第二单透镜。 反射构件设置在第一单透镜和第二单透镜之间，用于将光轴转向预定方向。

公开(公告)号：US07177091B2

公开(公告)日：2007-02-13

申请号：US11212875

申请日：2005-08-29

申请人： Yoshito Iwasawa ,  Nobuyuki Adachi ,  Masayuki Murata

发明人： Yoshito Iwasawa ,  Nobuyuki Adachi ,  Masayuki Murata

IPC分类号： G02B15/14

CPC分类号： G02B15/177

摘要： Disclosed is a zoom lens having a first lens group having a negative refractive power, a second lens group having a positive refractive power, and a third lens group having a positive refractive power arranged in the mentioned order from an object side, wherein the first lens group includes a negative lens and a positive lens having at least one aspherical surface arranged in the mentioned order from the object side and satisfies a following inequality (1): 0.4

摘要翻译： 公开了具有负屈光力的第一透镜组，具有正屈光力的第二透镜组的变焦透镜和从物体侧按照上述顺序布置的具有正折光力的第三透镜组，其中第一透镜 组包括负透镜和正透镜，其具有从物体侧按照上述顺序布置的至少一个非球面，并且满足以下不等式（1）：<？in-line-formula description =“In-line formula”end = “lead”？> 0.4 其中D1表示第一透镜组内的距离 最靠近物体的透镜表面和最靠近图像的透镜表面，fw表示与变焦透镜设置在广角位置的焦距。

公开(公告)号：US20070031134A1

公开(公告)日：2007-02-08

申请号：US11491081

申请日：2006-07-24

申请人： Daisuke Kuroda ,  Yoshito Iwasawa ,  Makoto Kanai

发明人： Daisuke Kuroda ,  Yoshito Iwasawa ,  Makoto Kanai

IPC分类号： G03B17/00

CPC分类号： G02B27/646 ,  G02B13/0035 ,  G02B13/0045 ,  G02B13/006 ,  G02B13/0065 ,  G02B13/007 ,  G02B13/009 ,  G02B15/173

摘要： The invention aims to achieve slim design by employing a light path folding optical system, add a hand-shake correction capability, and lower power consumption. An imaging lens device includes a light path folding optical system having a reflector that folds the optical axis incident perpendicular to the gravitational direction toward the gravitational direction, and an imaging element that converts an image formed by the light path folding optical system into an electrical signal. The imaging lens device also includes drive means that moves some of lens groups or one lens (hereinafter referred to as “shake correction lens group”) in the direction perpendicular to the optical axis folded toward the gravitational direction by the reflector (hereinafter referred to as “vertical optical axis”). The shake correction lens group is moved in the direction perpendicular to the vertical optical axis to move the image in the direction perpendicular to the vertical optical axis.

摘要翻译： 本发明旨在通过采用光路折叠光学系统来实现纤薄设计，增加手抖校正能力和降低功耗。 一种成像透镜装置包括光路折叠光学系统，该光路折叠光学系统具有使朝向重力方向垂直于重力入射的光轴折射的反射器，以及将由光路折叠光学系统形成的图像转换为电信号的摄像元件 。 成像透镜装置还包括驱动装置，该驱动装置沿着与通过反射器朝向重力方向折叠的光轴垂直的方向移动一些透镜组或一个透镜（以下称为“抖动校正透镜组”）（以下称为“抖动校正透镜组” “垂直光轴”）。 抖动校正透镜组在垂直于垂直光轴的方向上移动，以沿与垂直光轴垂直的方向移动图像。

公开(公告)号：US20050248669A1

公开(公告)日：2005-11-10

申请号：US11115292

申请日：2005-04-27

申请人： Yoshito Iwasawa

发明人： Yoshito Iwasawa

IPC分类号： G02B15/20 ,  G02B7/04 ,  G02B7/10 ,  G02B13/18 ,  G02B27/10 ,  G02B27/14 ,  G03B17/17 ,  H04N1/00 ,  H04N5/225 ,  H04N5/262 ,  H04N9/097

CPC分类号： G02B27/1013 ,  G02B7/102 ,  G02B27/145

摘要： An imaging apparatus includes: a zoom lens system including a plurality of groups and performing variable magnification by changing intervals of the lens groups; a color-separation optical system configured to carry out color separation of a light flux from the zoom lens system; and a plurality of imaging devices configured to convert optical images separated by colors by the color-separation optical system into electric signals. The zoom lens system includes at least one reflection member configured to bend an optical axis by 90 degrees or approximately 90 degrees. The color-separation optical system is arranged such that color-separation is performed in a direction within a plane perpendicular to another plane formed by an optical axis for light incident to the zoom lens system and an optical axis for light reflected by the reflection member.

摘要翻译： 一种成像装置，包括：变焦透镜系统，包括多个组，并且通过改变透镜组的间隔来执行可变放大; 配置为执行来自变焦透镜系统的光束的颜色分离的分色光学系统; 以及多个成像装置，被配置为将由所述分色光学系统分离的颜色的光学图像转换成电信号。 变焦透镜系统包括至少一个被配置为使光轴弯曲90度或大约90度的反射构件。 分色光学系统被布置成使得在垂直于由入射到变焦透镜系统的光的光轴形成的另一平面的平面内的方向和由反射构件反射的光的光轴上进行分色。