公开(公告)号：US20160238823A1

公开(公告)日：2016-08-18

申请号：US15044478

申请日：2016-02-16

Applicant: Tamron Co., Ltd.

Inventor： Hisayuki Yamanaka ,  Keisuke Okada ,  Yoshito Iwasawa

IPC: G02B13/02 ,  G02B13/00 ,  G02B27/00 ,  G02B9/64

CPC classification number: G02B13/02 ,  G02B9/64 ,  G02B13/006 ,  G02B27/0025

Abstract: The optical system of the present invention includes, in order from an object side: a first lens group G1 having positive refractive power; a second lens group G2 having negative refractive power; and a third lens group G3 having positive refractive power, wherein the first lens group G1 and the third lens group G3 are fixed in an optical axis direction, while the second lens group G2 is moved in the optical axis direction to focus on from an object at infinity to an object at a finite distance, the third lens group G3 includes, in order from the object side: an object-side group G3a; an aperture stop S; and an image-side group G3b, and a specified condition is satisfied.

Abstract translation: 本发明的光学系统从物体侧依次包括具有正折射力的第一透镜组G1; 具有负屈光力的第二透镜组G2; 和具有正折射力的第三透镜组G3，其中第一透镜组G1和第三透镜组G3沿光轴方向固定，而第二透镜组G2沿光轴方向移动以从对象聚焦 在有限距离处的物体无限远地，第三透镜​​组G3从物体侧起依次包括物体侧组G3a; 孔径光阑S; 和图像侧组G3b，并且满足指定条件。

公开(公告)号：US20160154227A1

公开(公告)日：2016-06-02

申请号：US14984286

申请日：2015-12-30

Applicant: Tamron Co., Ltd.

Inventor： Yoshito Iwasawa

IPC: G02B15/20 ,  G02B7/08 ,  G02B15/173

CPC classification number: G02B15/20 ,  G02B7/08 ,  G02B7/10 ,  G02B15/17 ,  G02B15/173

Abstract: The zoom lens is composed of: an object side lens group at least including, in order from an object side: a first lens group G1 having positive refractive power; and a second lens group G2 having negative refractive power; and an image focusing side lens group including, in order from the object side: a negative lens group A having negative refractive power; and a negative lens group B arranged by facing the negative lens group A across an air distance, having negative refractive power. In the zoom lens, focusing from infinity to a close object is achieved by moving just the negative lens group A toward an image focusing side to satisfy a conditional expression below: [Expression 1] −1.80

Abstract translation: 变焦透镜由以下部分构成：物体侧透镜组，从物体侧开始依次具有：具有正折射光焦度的第一透镜组G1; 和具有负屈光力的第二透镜组G2; 以及图像聚焦侧透镜组，其包括从物体侧起依次具有负折射力的负透镜组A; 以及负透镜组B，其通过面对负透镜组A而跨越具有负屈光力的空气距离。 在变焦透镜中，通过将负透镜组A朝向图像聚焦侧移动以满足下面的条件表达式来实现从无穷远到闭合对象的对焦：[表达式1] -1.80 <＆bgr 2t <-0.94（1） （1＆bgr; At2）×＆bgr; Bt <-4.5（2）其中“＆bgr”2t“是无限远聚焦中第二透镜组的远摄端的横向放大倍数，”＆bgr; At“是长焦时的横向放大倍率 在无限远聚焦中，负透镜组A的端部，“＆bgr; Bt”是负透镜组B的远摄端在无限远聚焦中的横向放大率。

公开(公告)号：US09182574B2

公开(公告)日：2015-11-10

申请号：US13717542

申请日：2012-12-17

Applicant: Tamron Co., Ltd.

Inventor： Shingo Fuse

IPC: G02B13/14 ,  G02B13/18 ,  G02B13/00 ,  G02B9/10 ,  G02B9/06

CPC classification number: G02B13/14 ,  G02B9/06 ,  G02B9/10 ,  G02B13/003

Abstract: The invention provides an infrared fixed-focus lens of which component lens pieces are made of germanium characterized by low chromatic dispersion, and have no surface processed to serve as diffraction optics. The infrared fixed-focus lens comprises a first lens piece disposed closer to an object and of negative power, and a second lens piece disposed closer to the image plane and of positive power. Both the first and second lens pieces are made of germanium.

Abstract translation: 本发明提供了一种红外固定焦距透镜，其中分量透镜片由具有低色散特性的锗制成，并且没有进行表面处理以用作衍射光学元件。 红外固定焦点透镜包括靠近物体和负电源设置的第一透镜片，以及靠近图像平面和正电力设置的第二透镜片。 第一和第二透镜片都由锗制成。

公开(公告)号：US20150070754A1

公开(公告)日：2015-03-12

申请号：US14386501

申请日：2013-03-21

Applicant: TAMRON CO., LTD.

Inventor： Shoko Kawai

IPC: G02B9/10 ,  G02B13/14

CPC classification number: G02B9/10 ,  G02B13/14

Abstract: An infrared optical system of two-lens structure comprises a front or first lens of negative refractive power and a rear or second lens of positive refractive power disposed in series relative to an object, the first lens having its concave surface faced toward the imaging plane, the second lens having its convex surface faced toward the object, the infrared optical system meeting the requirements as defined in the following formula 2.1≦d/f≦11, where d is an axial distance from the surface of the first lens closer to the imaging plane to the surface of the second lens closer to the object, and f is a focal length of the entire optical system.

Abstract translation: 双透镜结构的红外光学系统包括负屈光力的前或第一透镜和相对于物体串联设置的正折射力的后或后透镜，第一透镜的凹面朝向成像面， 第二透镜具有朝向物体的凸面，红外光学系统满足如下公式2.1＆nlE; d / f＆nlE; 11中定义的要求，其中d是距离第一透镜表面更接近 成像平面到靠近物体的第二透镜的表面，f是整个光学系统的焦距。

公开(公告)号：US08908297B2

公开(公告)日：2014-12-09

申请号：US14063691

申请日：2013-10-25

Applicant: Tamron Co., Ltd.

Inventor： Nobuyuki Adachi ,  Yasuhiko Obikane ,  Takahiko Sakai

IPC: G02B9/14 ,  G02B13/00 ,  G02B9/12 ,  G02B9/62 ,  G02B9/64

CPC classification number: G02B13/0015 ,  G02B9/12 ,  G02B9/62 ,  G02B9/64 ,  G02B13/00

Abstract: A fixed focus lens comprising, sequentially from an object side, a first lens group having a positive refractive power; a second lens group having a negative refractive power; and a third lens group having a positive refractive power. The first lens group includes an aperture stop. The second lens group is configured by a single lens element. During focusing, the second lens group moves along an optical axis and the first lens group and the third lens group are fixed with respect to an imaging plane.

Abstract translation: 一种固定聚焦透镜，其从物体侧依次具有正屈光力的第一透镜组; 具有负屈光力的第二透镜组; 以及具有正屈光力的第三透镜组。 第一透镜组包括孔径光阑。 第二透镜组由单个透镜元件构成。 在聚焦期间，第二透镜组沿光轴移动，第一透镜组和第三透镜组相对于成像平面固定。

公开(公告)号：US20140347545A1

公开(公告)日：2014-11-27

申请号：US14284731

申请日：2014-05-22

Applicant: Tamron Co., Ltd.

Inventor： Yasuhiko Obikane

IPC: G02B15/15 ,  G02B15/14

CPC classification number: G02B27/646 ,  G02B15/14 ,  G02B15/173 ,  G02B15/22

Abstract: A zoom lens includes a first lens group having positive refracting power, a second lens group having negative refracting power, a third lens group having positive refracting power, a fourth lens group having negative refracting power and a fifth lens group having negative refracting power in order from an object side, in which the lens groups move in magnification change from a wide angle end to a telephoto end such that a gap between the first lens group and the second lens group increases and a gap between the second lens group and the third lens group decreases, a negative lens group disposed closer to an image focusing side than a diaphragm among all lens groups is set as a focusing lens group, and the focusing lens group moves toward the image focusing side at focusing from infinity to a close object, the zoom lens satisfies a conditional expression, the fifth lens group includes at least a single lens block of a meniscus shape provided with a concave surface at an object side, the single lens block of the meniscus shape has a negative focal distance and satisfies a different conditional expression.

Abstract translation: 变焦透镜包括具有正折射率的第一透镜组，具有负折射力的第二透镜组，具有正折射率的第三透镜组，具有负折射光焦度的第四透镜组和具有负折射光焦度的第五透镜组，具有负折射力的第五透镜组 从物体侧起，透镜组从广角端到远摄端的放大变化，使得第一透镜组和第二透镜组之间的间隙增加，并且第二透镜组和第三透镜之间的间隙 组减小，将设置在所有透镜组中的比聚光侧更靠近图像聚焦侧的负透镜组设置为聚焦透镜组，并且聚焦透镜组在从无穷远到近距离物体聚焦时朝向图像聚焦侧移动， 变焦透镜满足条件表达式，第五透镜组至少包括在物体侧设置有凹面的弯液面的单个透镜块，th 弯月面形状的单透镜块具有负焦距并满足不同的条件表达式。

公开(公告)号：US20140347522A1

公开(公告)日：2014-11-27

申请号：US14283680

申请日：2014-05-21

Applicant: Tamron Co., Ltd.

Inventor： Yoshito Iwasawa

IPC: G02B15/16 ,  H04N5/232 ,  G02B13/00

CPC classification number: H04N5/23296 ,  G02B15/173

Abstract: The zoom lens includes at least, in order from an object side: a first lens group G1 having positive refractive power; a second lens group G2 having negative refractive power; a third lens group G3 having positive refractive power; a fourth lens group G4 having negative refractive power; and a fifth lens group G5 having negative refractive power. In the zoom lens, focusing from infinity to a proximity of object is achieved by movement of just fourth lens group toward an image focusing side and is characterized in Satisfaction of expressions below: [Expression 1] 2.1

Abstract translation: 变焦透镜至少包括从物体侧开始的顺序：具有正折射光焦度的第一透镜组G1; 具有负屈光力的第二透镜组G2; 具有正屈光力的第三透镜组G3; 具有负屈光力的第四透镜组G4; 以及具有负屈光力的第五透镜组G5。 在变焦透镜中，通过仅将第四透镜组朝向图像聚焦侧的移动实现从无限远到对象的接近，并且其特征在于以下表达式的满足：[表达式1] 2.1 <＆bgr; rt <3.5（1） -1.80 <＆bgr; 2t <-0.94（2）其中“＆bgr rt”是在无限远聚焦下位于比第三透镜组更靠近图像聚焦侧的透镜组的远摄端处的复合横向放大倍数，“＆bgr; 2t “是在无限远聚焦的第二透镜组的远摄端处的横向放大率。

公开(公告)号：US20140338175A1

公开(公告)日：2014-11-20

申请号：US14451113

申请日：2014-08-04

Applicant: TAMRON CO., LTD

Inventor： Yukio Tanaka

IPC: G02B27/64

CPC classification number: G02B27/646 ,  G03B5/00 ,  G03B2205/0015 ,  H02K41/0356 ,  H04N5/23258 ,  H04N5/2328 ,  Y10T29/49826

Abstract: To provide an anti-vibration actuator capable of smooth transition to image-blur prevention control. The present invention is an actuator (10) furnished with a locking mechanism, including: a fixed portion (12); a movable portion (14) with an image-blur prevention lens (16); a movable portion support means (18); a drive means for driving the movable portion; a movable portion locking mechanism (42) for locking a movable portion by limiting the range over which the movable portion can move to be within a predetermined locked movable range; a memory section (36a), within which is stored the movable portion initial position to which the movable portion is moved upon startup of image-blur prevention control; and a control section (36) for moving the movable portion to the initial position and releasing the lock upon startup of control; whereby the predetermined position in the locked movable range is stored as an initial position.

Abstract translation: 提供能够平滑过渡到图像模糊防止控制的抗振动致动器。 本发明是具有锁定机构的致动器（10），包括：固定部分（12）; 具有图像模糊防止透镜的可动部分（14）; 可移动部分支撑装置（18）; 用于驱动可动部分的驱动装置; 一可移动部分锁定机构，用于通过限制所述可移动部分可移动的范围在预定的锁定可移动范围内来锁定可动部分; 存储部，其中，在启动图像模糊防止控制时，存储可移动部分初始位置，可移动部分初始位置移动到可移动部分初始位置; 以及控制部（36），用于将可动部移动到初始位置，并且在启动控制时释放锁定; 从而将锁定的可移动范围内的预定位置存储为初始位置。

公开(公告)号：US08867144B2

公开(公告)日：2014-10-21

申请号：US13760973

申请日：2013-02-06

Applicant: Tamron Co., Ltd.

Inventor： Hisayuki Yamanaka

IPC: G02B15/14 ,  G02B15/24 ,  G02B15/17

CPC classification number: G02B15/24 ,  G02B15/17

Abstract: The present invention is directed to providing a large aperture telephotographing zoom lens that employs an inner-focusing system to enable quick focusing and avoid a great aberration when the zoom lens renders the close object in focus. The zoom lens comprises at least five groups of lens pieces arranged in series, namely, the foremost or first lens group of positive refractivity positioned the closest to the object, the succeeding second lens group of negative refractivity, the third lens group of negative refractivity, the fourth lens group of positive refractivity, and the rearmost or fifth lens group of positive refractivity. During varying the magnification for zooming in a transition from the wide-angle end to the telephoto end, all the lens pieces of the second, third, and fourth lens groups are moved toward the image plane, and the third lens group alone is displaced for focusing.

Abstract translation: 本发明旨在提供一种大孔径长焦摄影变焦镜头，其采用内部聚焦系统来实现快速聚焦，并且当变焦镜头使焦点对准物体时避免大的像差。 变焦透镜包括至少五组串联布置的透镜片，即位于最接近物体的正折射率的最前面或第一透镜组，负折射率的后续第二透镜组，负折射率的第三透镜组， 正折射率的第四透镜组和正折射率的最后或第五透镜组。 在变化用于放大从广角端到望远端的转变的放大倍数时，第二，第三和第四透镜组的所有透镜片朝向图像平面移动，并且仅第三透镜组移位， 聚焦。

公开(公告)号：US20140177065A1

公开(公告)日：2014-06-26

申请号：US14100617

申请日：2013-12-09

Applicant: Tamron Co., Ltd.

Inventor： Nobuyuki Adachi

IPC: G02B15/14

CPC classification number: G02B15/173 ,  G02B27/646

Abstract: A high-power zoom lens that achieves size and price reduction, and at the same time provides high-quality imaging. This lens includes at least four lens groups arranged along an optical axis, which are moveable along the axis in order to achieve changes in magnification. The first, third, and fourth lens groups have positive refractive powers, and the second group has a negative refractive power. The second lens group includes a negative meniscus lens arranged closest to the object, provided with a convex surface at the object side. A negative lens is arranged next to the negative meniscus lens, and a negative lens provided with a concave surface at the object side is arranged closest to the image. The fourth lens group includes at least two positive lenses and one negative lens.

Abstract translation: 实现尺寸和价格降低的大功率变焦镜头，同时提供高质量的成像。 该透镜包括沿着光轴布置的至少四个透镜组，其可以沿轴线移动以实现放大率的变化。 第一，第三和第四透镜组具有正折射力，第二组具有负屈光力。 第二透镜组包括最靠近物体布置的负弯月透镜，在物体侧设置有凸面。 靠近负弯月形透镜设置负透镜，并且在物体侧设置有凹面的负透镜最靠近图像布置。 第四透镜组包括至少两个正透镜和一个负透镜。