公开(公告)号：US20080144189A1

公开(公告)日：2008-06-19

申请号：US11980457

申请日：2007-10-31

申请人： Yoshito Iwasawa ,  Yasushi Yamamoto

发明人： Yoshito Iwasawa ,  Yasushi Yamamoto

IPC分类号： G02B15/177

CPC分类号： G02B15/177

摘要： There is provided a zoom lens, including, in an order from an object side to an image side, a first lens group having a negative refractive power; a second lens group having a positive refractive power; a third lens group having a negative refractive power; and a fourth lens group having a positive refractive power. During power variation from a wide angle end to a telephoto end, each group is moved in an optical axis direction, and a following conditional expression (1) is satisfied: −5

摘要翻译： 提供了一种变焦透镜，包括从物体侧到像侧的顺序具有负折光力的第一透镜组; 具有正屈光力的第二透镜组; 具有负屈光力的第三透镜组; 以及具有正屈光力的第四透镜组。 在从广角端到望远端的功率变化期间，每组在光轴方向上移动，并且满足以下条件表达式（1）：<？in-line-formula description =“在线公式”结束 =“lead”？> - 5 f1是 第一透镜组; f4是第四透镜组的焦距。

公开(公告)号：US20110222167A1

公开(公告)日：2011-09-15

申请号：US13046965

申请日：2011-03-14

申请人： Yoshito Iwasawa

发明人： Yoshito Iwasawa

IPC分类号： G02B15/14

CPC分类号： G02B15/17

摘要： A zoom lens includes a first lens group including an optical path change member that changes an optical path, a second lens group including at least one negative lens and at least one positive lens, and lens groups having a positive refractive power. The first lens group is closer to an object side of the zoom lens and is fixed relative to an image plane during a zooming operation. The second lens group is adapted to move during the zooming operation. Each of the lens groups includes at least one positive lens, and the lens groups are closer to an image plane side of the zoom lens. The zoom lens satisfies vdLP>71, vdL2p 1.71, wherein “vdLP” is an Abbe number, “vdL2p” is an Abbe number, and “ndL2m” is a refractive index.

摘要翻译： 变焦透镜包括包括改变光路的光路改变部件的第一透镜组，包括至少一个负透镜和至少一个正透镜的第二透镜组以及具有正折光力的透镜组。 第一透镜组更靠近变焦透镜的物体侧，并且在变焦操作期间相对于像平面固定。 第二透镜组适于在变焦操作期间移动。 每个透镜组包括至少一个正透镜，并且透镜组更靠近变焦透镜的像面侧。 变焦透镜满足vdLP> 71，vdL2p <40，ndL2m> 1.71，其中“vdLP”是阿贝数，“vdL2p”是阿贝数，“ndL2m”是折射率。

公开(公告)号：US07312934B2

公开(公告)日：2007-12-25

申请号：US11206265

申请日：2005-08-18

申请人： Yoshito Iwasawa

发明人： Yoshito Iwasawa

IPC分类号： G02B9/60

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：US07286163B2

公开(公告)日：2007-10-23

申请号：US10449099

申请日：2003-06-02

申请人： Yoshihiro Hara ,  Sadanobu Ueda ,  Yoshito Iwasawa ,  Kazuaki Matsui ,  Akira Kosaka ,  Satoshi Yokota

发明人： Yoshihiro Hara ,  Sadanobu Ueda ,  Yoshito Iwasawa ,  Kazuaki Matsui ,  Akira Kosaka ,  Satoshi Yokota

IPC分类号： H04N5/228

CPC分类号： H04N5/23258 ,  G03B17/17 ,  G03B2205/0023 ,  H04N5/2254 ,  H04N5/23248 ,  H04N5/23287

摘要： A digital camera having an image shake correction apparatus and a method of preventing the image shake of an image taken by the digital camera. The digital camera includes optical elements arranged along a bent line for focusing an object image upon a light receiving plane in which the elements include at least one mirror which reflects a light from an object toward the light receiving plane, a driver for moving the mirror so as to turn its light axis having been bent by the mirror, a vibration sensor for sensing a vibration of a camera body, and a processor for making the driver move the mirror based on the sensed vibration. The mirror turns so as to cancel the vibration of the object image focussed on the light receiving plane.

摘要翻译： 一种具有图像抖动校正装置的数字照相机和防止由数字照相机拍摄的图像的图像抖动的方法。 数字照相机包括沿着弯曲线布置的光学元件，用于将物体图像聚焦在光接收平面上，其中元件包括将来自物体的光朝向光接收平面反射的至少一个反射镜，用于将镜子移动的驱动器 为了使其光轴被镜子弯曲，用于感测照相机主体的振动的振动传感器和用于使驾驶员基于感测到的振动来移动镜子的处理器。 镜子转动以消除聚焦在光接收平面上的物体图像的振动。

公开(公告)号：US20070127124A1

公开(公告)日：2007-06-07

申请号：US11607007

申请日：2006-12-01

申请人： Yoshito Iwasawa

发明人： Yoshito Iwasawa

IPC分类号： G02B27/64

CPC分类号： G02B15/177

摘要： A zoom lens includes, in the following order from an object side: a first lens group including negative refractive power; a second lens group including negative refractive power; and a third lens group. At least the second and third lens group are movable along an optical axis to perform a zooming action. The second lens group is movable in a direction orthogonal to the optical axis to shift an image in a direction orthogonal to the optical axis. The following (1) and (2) are satisfied: 0.5

摘要翻译： 变焦透镜从物体侧按照以下顺序包括：包括负屈光力的第一透镜组; 包括负折光力的第二透镜组; 和第三透镜组。 至少第二和第三透镜组可沿着光轴移动以执行变焦动作。 第二透镜组可以在与光轴正交的方向上移动，以沿与光轴正交的方向移动图像。 满足以下（1）和（2）：<？in-line-formula description =“In-line Formulas”end =“lead”？> 0.5 <（1-βalpha）xbetab <1.0，和（1） ？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line formula”end =“lead”？> 0.1 <| f 1 / f 2 | <1.25，（2）<？在线公式描述=“在线公式”end =“tail”？>其中βalpha是变焦透镜的望远端处的第二透镜组的放大率; 甜菜碱是相对于第二透镜组的像侧的透镜组的放大倍数; f 1，f 2分别是第一，第二透镜组的焦距。

公开(公告)号：US08111467B2

公开(公告)日：2012-02-07

申请号：US13046927

申请日：2011-03-14

申请人： Yoshito Iwasawa

发明人： Yoshito Iwasawa

IPC分类号： G02B15/14

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

摘要： A zoom lens includes, in order from an object side to an image plane side, a first lens group fixed to the image plane during zooming, having a positive refractive power, and including a single lens having a negative refractive power, an optical path change member for changing an optical path, and a positive lens group having a positive refractive power, which are arranged in order from the object side, a second lens group having a negative refractive power and including a negative lens group and a positive lens group which are arranged in order from the object side with an air gap, a third lens group fixed to the image plane during zooming and having a positive refractive power, and at least one lens group having a positive refractive power. The zoom lens satisfies the conditions the 1.4

摘要翻译： 变焦透镜从物体侧到像面侧依次包括在变焦期间固定到像面的第一透镜组，具有正折光力，并且包括具有负折光力的单透镜，光路变化 具有正折射力的正透镜组，从物体侧依次排列的具有负折光力的第二透镜组，包括负透镜组和正透镜组，它们均为 从对象侧依次排列有气隙，第三透镜​​组在变焦期间固定在像面上并具有正折射力，以及至少一个具有正折光力的透镜组。 变焦透镜满足1.4 <| fLG1 / fw | <5.8和-4.8

公开(公告)号：US07800829B2

公开(公告)日：2010-09-21

申请号：US10592920

申请日：2005-02-15

申请人： Yoshito Iwasawa

发明人： Yoshito Iwasawa

IPC分类号： G02B15/14 ,  G02B17/00 ,  G02B7/00

CPC分类号： G02B15/173 ,  G02B5/08 ,  G02B13/0065 ,  G02B13/009

摘要： A zoom lens composed of plural groups and adapted for changing group spacing or spacings, and includes, in a first group GR1 fixed during zooming operation, a reflection member M for bending or folding the optical axis substantially by 90 degrees and a negative group at the object side relative to the reflection member M. At the image side of the first group GR1, there are at least included a second group GR2 movable during zooming operation and having negative refractive power, and a light quantity adjustment member ST1 fixed during zooming operation. Angle of the reflection member M is changed at the time of sinking lens barrel so that the negative group of the first group GR1 is accommodated into a space thus defined.

摘要翻译： 一种变焦透镜，由多组构成并适于改变组间距或间距，并且包括在变焦操作期间固定的第一组GR1中，用于使光轴大致弯曲或折叠90度的反射部件M， 物镜侧相对于反射构件M.在第一组GR1的像侧，至少包括在变焦操作期间可移动并具有负屈光力的第二组GR2，以及在变焦操作期间固定的光量调节构件ST1。 反射构件M的角度在下降镜筒时变化，使得第一组GR1的负组被容纳在如此限定的空间中。

公开(公告)号：US07505210B2

公开(公告)日：2009-03-17

申请号：US10549919

申请日：2004-12-24

申请人： Daisuke Kuroda ,  Yoshito Iwasawa

发明人： Daisuke Kuroda ,  Yoshito Iwasawa

IPC分类号： G02B15/14

CPC分类号： G02B13/0065 ,  G02B13/009 ,  G02B15/173

摘要： A zoom lens has good optical performance, is compact, and has a high magnifying power, and is suitable for use in a video camera, a digital still camera, a cellular phone, or the like, and an image pickup apparatus employs the zoom lens. The zoom lens includes a first lens group fixed upon zooming and having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, a fourth lens group having a negative refractive power, and a fifth lens group having a positive refractive power, which are successively arranged in the order from the object side. At least the second lens group and the fourth lens group are moved for zooming.

摘要翻译： 变焦镜头具有良好的光学性能，紧凑并且具有高放大倍率，并且适用于摄像机，数码相机，蜂窝电话等，并且图像拾取装置采用变焦透镜 。 变焦透镜包括：在变焦时固定并具有正折光力的第一透镜组，具有负屈光力的第二透镜组，具有正折光力的第三透镜组，具有负折光力的第四透镜组，以及 具有正折射力的第五透镜组，其从物体侧依次排列。 至少第二透镜组和第四透镜组移动以进行变焦。

公开(公告)号：US20080094709A1

公开(公告)日：2008-04-24

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 ,  G02B9/60

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：US07218455B2

公开(公告)日：2007-05-15

申请号：US11455038

申请日：2006-06-19

申请人： Yoshito Iwasawa

发明人： Yoshito Iwasawa

IPC分类号： G02B15/14 ,  G02B27/64

CPC分类号： G02B15/177 ,  G02B13/22

摘要： A zoom lens having at least a first lens group including a reflection member for bending an optical axis fixedly during zooming and having a negative refractive power, a second lens group having a negative refractive power, and a third lens group arranged in the order from an object side is provided. In the zoom lens, an image can be shifted into a direction perpendicular to the optical axis by moving either of the second and the third lens groups (“shift lens group”) in a direction perpendicular to the optical axis, and a following conditional expression (1) is satisfied, 0.5

摘要翻译： 一种变焦透镜，具有至少第一透镜组，所述第一透镜组包括用于在变焦期间固定地弯曲光轴并具有负折光力的反射构件，具有负折射光焦度的第二透镜组和从第一透镜组的顺序排列的第三透镜组 物体侧。 在变焦镜头中，通过沿着与光轴垂直的方向移动第二和第三透镜组（“移动透镜组”）中的任意一个，可以将图像移动到垂直于光轴的方向上，并且具有以下条件表达式 （1）满足<？in-line-formula description =“In-line formula”end =“lead”？> 0.5 <（1-betaalpha）xbetab <3.0，（1）<？ =“直线公式”end =“tail”？>其中：betaalpha：最大远摄状态下移动透镜组的放大倍数，betab：布置在移位透镜的图像表面侧的透镜组的放大倍率 组在最大远摄状态。