公开(公告)号：US09001430B2

公开(公告)日：2015-04-07

申请号：US13557222

申请日：2012-07-25

Applicant: Kuo-Chuan Wang ,  Sheng-Tang Lai

Inventor： Kuo-Chuan Wang ,  Sheng-Tang Lai

IPC: G02B15/14 ,  G02B15/173 ,  G02B15/28

CPC classification number: G02B13/18 ,  G02B3/04 ,  G02B9/60 ,  G02B15/14 ,  G02B15/167 ,  G02B15/173 ,  G02B15/28 ,  H04N5/2254 ,  H04N7/18

Abstract: A lens module for capturing an object light-beam from an object-side is provided. The lens module includes a first lens group, a second lens group, a third lens group, a fourth lens group and a fifth lens group sequentially-arranged from the object-side to an image-side. The five lens groups respectively have at least one lens with positive refractive-power and at least one lens with negative refractive-power. The first, third and fifth lens groups are fixed groups, while the second and fourth lens groups are movable groups. An image apparatus including the lens module is also provided.

Abstract translation: 提供了一种用于从物体侧捕获物体光束的透镜模块。 透镜模块包括从物体侧到图像侧顺序地布置的第一透镜组，第二透镜组，第三透镜​​组，第四透镜组和第五透镜组。 五个透镜组分别具有至少一个具有正折光力的透镜和至少一个具有负折光力的透镜。 第一，第三和第五透镜组是固定组，而第二和第四透镜组是可移动组。 还提供了包括透镜模块的图像设备。

公开(公告)号：US20150070780A1

公开(公告)日：2015-03-12

申请号：US14480816

申请日：2014-09-09

Applicant: Yoshifumi SUDOH

Inventor： Yoshifumi SUDOH

IPC: G02B15/14

CPC classification number: G02B15/14 ,  G02B3/14 ,  G02B5/005 ,  G02B9/34 ,  G02B13/002 ,  G02B13/009 ,  G02B13/18 ,  G02B15/167 ,  G02B15/173 ,  H04N5/23296

Abstract: A zoom lens includes, in order from an object side toward an image side: a first lens unit having a positive refractive power and provided with a positive lens; a second lens unit having a negative refractive power; a third lens unit having a positive refractive power and provided with a diffraction plane of a diffraction optical element; a fourth lens unit having a positive refractive power to perform focusing; and an aperture stop between the second lens unit and the third lens unit. According to a change of magnification from a short focal end to a long focal end, the first lens unit is stationary, the second lens unit is moved to the image side, the third lens unit is moved to the object side, and the fourth lens unit is moved, and the positive lens satisfies the following condition formulas: 1.45

Abstract translation: 变焦透镜从物体侧朝向像侧依次包括具有正折光力并具有正透镜的第一透镜单元; 具有负屈光力的第二透镜单元; 具有正屈光力并具有衍射光学元件的衍射面的第三透镜单元; 具有正屈光力进行聚焦的第四透镜单元; 以及第二透镜单元和第三透镜单元之间的孔径光阑。 根据从短焦端到长焦端的放大率的变化，第一透镜单元是静止的，第二透镜单元移动到图像侧，第三透镜​​单元移动到物体侧，第四透镜 单位移动，正透镜满足以下条件式：1.45

公开(公告)号：US08767313B2

公开(公告)日：2014-07-01

申请号：US13479394

申请日：2012-05-24

Applicant: Kazuya Shimomura ,  Fumiaki Usui

Inventor： Kazuya Shimomura ,  Fumiaki Usui

IPC: G02B15/14 ,  G02B15/22

CPC classification number: G02B15/22 ,  G02B15/167 ,  G02B15/17 ,  G02B15/173

Abstract: A zoom lens including, in order from object side: a positive first unit fixed for zooming; a negative second unit moving for zooming; a zoom unit including at least one unit moving for zooming; a stop; and a fixed unit. The first unit includes a negative first sub-unit not moving for focusing, and a positive second sub-unit and a positive third sub-unit moving toward image side and object side, respectively, when focusing from infinity object to proximity object. A focal lengths of the first and second units, a distance from a vertex of a surface closest to the image side in the first unit to an image side principal point position of the first unit, a thickness of the first unit on an optical axis, and lateral magnifications of the second and third sub-units when focusing on infinity object are appropriately set.

Abstract translation: 一种变焦透镜，包括从物体侧起的顺序：固定用于变焦的正的第一单元; 用于缩放的负第二单元; 变焦单元，包括至少一个移动以用于变焦的单元; 停下来 和固定单元。 当从无限远对象到近距离物体聚焦时，第一单元包括不能聚焦的负的第一子单元和分别朝向图像侧和物体侧移动的正的第二子单元和正的第三子单元。 第一单元和第二单元的焦距，距离第一单元中最靠近图像侧的表面的顶点到第一单元的图像侧主点位置的距离，第一单元在光轴上的厚度， 并且当聚焦在无限远物体上时，第二和第三子单元的横向放大率被适当地设定。

公开(公告)号：US20140152887A1

公开(公告)日：2014-06-05

申请号：US14077681

申请日：2013-11-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hiroyuki Hagiwara

IPC: G02B15/167 ,  G02B27/64

CPC classification number: G02B15/167 ,  G02B15/177 ,  G02B15/22 ,  G02B27/646

Abstract: A zoom lens includes, sequentially from an object side, a first lens group having negative refractive power, a second lens group having positive refractive power, a third lens group having negative refractive power; and a fourth lens group having positive refractive power. When zoom is varied from a wide-angle end to a telephoto end, positions of the first lens group and the fourth lens group are fixed on an optical axis. The second lens group includes, sequentially from the object side, a second A lens group having positive refractive power and a second B lens group having positive refractive power, and the second B lens group is moved in the optical axis direction to perform a focusing function from an object disposed in a close range to an object disposed at infinity. The third lens group is shifted in a direction perpendicular to the optical axis to correct image blur.

Abstract translation: 变焦透镜从物体侧顺序地包括具有负折光力的第一透镜组，具有正折光力的第二透镜组，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。 当从广角端到望远端变焦时，第一透镜组和第四透镜组的位置固定在光轴上。 第二透镜组从物体侧依次包括具有正折光力的第二A透镜组和具有正折光力的第二B透镜组，并且第二B透镜组沿光轴方向移动以执行聚焦功能 从设置在近距离处的物体放置在无限远处的物体。 第三透镜组在垂直于光轴的方向上偏移以校正图像模糊。

公开(公告)号：US20120300118A1

公开(公告)日：2012-11-29

申请号：US13479394

申请日：2012-05-24

Applicant: Kazuya Shimomura ,  Fumiaki Usui

Inventor： Kazuya Shimomura ,  Fumiaki Usui

IPC: H04N5/225 ,  G02B15/14

CPC classification number: G02B15/22 ,  G02B15/167 ,  G02B15/17 ,  G02B15/173

Abstract: A zoom lens including, in order from object side: a positive first unit fixed for zooming; a negative second unit moving for zooming; a zoom unit including at least one unit moving for zooming; a stop; and a fixed unit. The first unit includes a negative first sub-unit not moving for focusing, and a positive second sub-unit and a positive third sub-unit moving toward image side and object side, respectively, when focusing from infinity object to proximity object. A focal lengths of the first and second units, a distance from a vertex of a surface closest to the image side in the first unit to an image side principal point position of the first unit, a thickness of the first unit on an optical axis, and lateral magnifications of the second and third sub-units when focusing on infinity object are appropriately set.

Abstract translation: 一种变焦透镜，包括从物体侧起的顺序：固定用于变焦的正的第一单元; 用于缩放移动的负第二单元; 变焦单元，包括至少一个移动以用于变焦的单元; 停下来 和固定单元。 第一单元包括不能聚焦的负第一子单元，以及当从无穷远对象聚焦到接近对象时分别朝向图像侧和对象侧移动的正的第二子单元和正的第三子单元。 第一单元和第二单元的焦距，距离第一单元中最接近图像侧的表面的顶点到第一单元的图像侧主点位置的距离，第一单元在光轴上的厚度， 并且当聚焦在无限远物体上时，第二和第三子单元的横向放大率被适当地设定。

公开(公告)号：US20100302640A1

公开(公告)日：2010-12-02

申请号：US12788292

申请日：2010-05-26

Applicant: Toshinori TAKE

Inventor： Toshinori TAKE

IPC: G02B15/14 ,  G02B27/64 ,  G02B11/30 ,  B23P17/04

CPC classification number: G02B15/163 ,  G02B15/14 ,  G02B15/167 ,  G02B15/173 ,  G02B15/20 ,  G02B27/646 ,  Y10T29/49004 ,  Y10T29/49826

Abstract: A lens system having, in order from an object, at least a first lens group G1 having positive refractive power, and second to fourth lens groups G2 to G4, wherein the first lens group G1 includes a front portion lens group G1a, and a rear portion lens group G1b which is disposed to an image side of the front portion lens group G1a with an air distance therebetween, and performs focusing by shifting the rear portion lens group G1b in the optical axis direction, and the fourth lens group G4 includes, in order from the object, a negative lens and a positive lens (cemented negative lens L41), a negative lens L42, and an aperture stop S, and is fixed in the optical axis direction with respect to an image plane I upon zooming from a wide angle end state to a telephoto end state.

Abstract translation: 具有从物体起依次具有至少具有正折光力的第一透镜组G1和第二至第四透镜组G2至G4的透镜系统，其中第一透镜组G1包括前部透镜组G1a和后部透镜组 部分透镜组G1b，其设置在前部透镜组G1a的像侧，其间具有空气距离，并且通过使后部透镜组G1b沿光轴方向偏移来进行聚焦，并且第四透镜组G4包括在 来自物体的顺序，负透镜和正透镜（胶合负透镜L41），负透镜L42和孔径光阑S，并且在从广角变焦时相对于像平面I在光轴方向上被固定 角度端状态到远摄端状态。

公开(公告)号：US20020030895A1

公开(公告)日：2002-03-14

申请号：US09880966

申请日：2001-06-15

Applicant: ASAHI KOGAKU KOGYO KABUSHIKI KAISHA

Inventor： Tetsuro Tani

IPC: G02B015/14 ,  G02B015/22

CPC classification number: G02B15/167 ,  G02B23/14

Abstract: A zoom viewfinder includes an objective optical system having a frontmost lens group and a movable lens group positioned behind the frontmost lens group, and a guide shaft which extends parallel to an optical axis of the objective optical system to guide the movable lens group in the optical axis direction. The frontmost end of the guide shaft is positioned behind the frontmost lens group of the objective optical system.

Abstract translation: 变焦取景器包括物镜光学系统，其具有最前面的透镜组和位于最前面的透镜组后面的可移动透镜组;以及引导轴，其平行于物镜光学系统的光轴延伸以将可移动透镜组引导到光学 轴方向。 引导轴的最前端位于物镜光学系统的最前面的透镜组之后。

公开(公告)号：US06342975B1

公开(公告)日：2002-01-29

申请号：US09560565

申请日：2000-04-28

Applicant: Takanori Yamanashi

Inventor： Takanori Yamanashi

IPC: G02B1514

CPC classification number: G02B15/167

Abstract: The object of the invention is to reduce the size of a camera by the provision of a zoom lens system which has a high zoom ratio and a small telephoto ratio at the wide-angle and telephoto end, and is simple in lens arrangement and reduced in size during lens collapsing. The zoom lens system comprises a positive first lens group G1, a positive second lens group G2 and a negative third lens group G3. For zooming from a wide-angle end to a telephoto end of the system, each lens group moves toward the object side while a spacing between the first lens group and the second lens group becomes wide and a spacing between the second lens group and the third lens group becomes narrow. The first lens group G1 comprises at least one set of a negative lens and a positive lens. The second lens group G2 includes an aperture stop and comprises at least one set of a negative lens and a positive lens. The third lens group G3 comprises one set of a positive lens and a negative lens. Specific conditions for an actual air space between the second and third lens groups G2 and G3, the focal length of the third group G3 and the zoom ratio shared by the third group G3 are all satisfied.

Abstract translation: 本发明的目的是通过提供在广角和远摄端具有高变焦比和小望远比的变焦透镜系统来减小照相机的尺寸，并且透镜布置简单 镜片塌缩时尺寸。 变焦透镜系统包括正的第一透镜组G1，正的第二透镜组G2和负的第三透镜组G3。 为了从广角端到远摄端的放大，每个透镜组向物体侧移动，而第一透镜组和第二透镜组之间的间隔变宽，并且第二透镜组与第三透镜组之间的间隔 镜头组变窄。 第一透镜组G1包括至少一组负透镜和正透镜。 第二透镜组G2包括孔径光阑，并且包括至少一组负透镜和正透镜。 第三透镜组G3包括一组正透镜和负透镜。 第二组和第三透镜组G2和G3之间的实际空气空间的特定条件，第三组G3的焦距和由第三组G3共享的变焦倍数都被满足。

公开(公告)号：US06339509B1

公开(公告)日：2002-01-15

申请号：US09499642

申请日：2000-02-08

Applicant: Motoyuki Ohtake

Inventor： Motoyuki Ohtake

IPC: G02B1514

CPC classification number: G02B15/167

Abstract: A variable focal length optical system of reducing size and increased zoom ratio is provided. According to one aspect. at least three lens groups, in order from an object side, a first lens group G1 having a positive refractive power, a second lens group G2 having a positive refractive power, and a third lens group G3 having a negative refractive power. When a state of lens group positions is changed from a wide-angle end state to a telephoto end state, each lens group moves to the object side such that an air gap between the first lens group G1 and the second lens group G2 increases, and an air gap between the second lens group G2 and the third lens group G3 decreases. An aperture diaphragm is arranged between the first lens group G1 and the third lens group G3. The second lens group G2 is arranged in the vicinity of the aperture diaphragm and has a positive lens having double aspherical surfaces. Particular conditions are satisfied.

Abstract translation: 提供了减小尺寸和增加变焦比的可变焦距光学系统。 根据一个方面 至少三个透镜组，从物体侧开始，具有正折光力的第一透镜组G1，具有正折光力的第二透镜组G2和具有负折光力的第三透镜组G3。 当透镜组位置的状态从广角端状态改变为望远端状态时，每个透镜组移动到物体侧，使得第一透镜组G1和第二透镜组G2之间的气隙增加，并且 第二透镜组G2和第三透镜组G3之间的空气间隙减小。 在第一透镜组G1和第三透镜组G3之间布置孔径光阑。 第二透镜组G2布置在孔径光阑附近，并具有具有双非球面的正透镜。 特殊条件得到满足。

公开(公告)号：US5999330A

公开(公告)日：1999-12-07

申请号：US204847

申请日：1998-12-03

Applicant: William T. Goosey, Jr.

Inventor： William T. Goosey, Jr.

IPC: G02B15/167 ,  G02B15/14 ,  G02B3/02 ,  G02B9/00

CPC classification number: G02B15/167

Abstract: The zoom lens according to the present invention comprises three lens units. More specifically, there is a front lens unit of positive refractive power, a middle lens unit of positive refractive power, and a rear lens unit of negative refractive power. The front lens unit has a positive lens element and a negative lens element airspaced from the positive lens element. During zooming from a wide-angle to a telephoto position, the front and the rear lens units simultaneously move the toward an object side. The middle lens unit also moves toward the object side, but by a shorter net axial distance than the distance traveled by the front and rear lens units. The "net axial distance" refers to the axial distance between one zoom and another zoom position of a lens unit. The lens elements have sufficient optical powers, spacings and radii of curvature to provide for a large zoom ratio ZR and to maintain an overall compactness so that L.sub.v /f.sub.t 2.5, where L.sub.v is the distance from the front vertex of the zoom lens to the film plane in the telephoto position, f.sub.t is the focal length of the zoom lens in the telephoto position, and f.sub.w is the focal length of the zoom lens in the wide-angle position.

Abstract translation: 根据本发明的变焦镜头包括三个透镜单元。 更具体地，存在正屈光力的前透镜单元，正屈光力的中间透镜单元和负折光力的后透镜单元。 前透镜单元具有从正透镜元件空气空间的正透镜元件和负透镜元件。 在从广角变焦到远摄位置时，前后透镜单元同时向物体侧移动。 中间透镜单元也朝向物体侧移动，但是通过比前后透镜单元行进的距离更短的净轴向距离。 “净轴距”是指透镜单元的一个变焦与另一变焦位置之间的轴向距离。 透镜元件具有足够的光焦度，间距和曲率半径以提供大的变焦比ZR并且保持整体紧凑性，使得Lv / ft <0.9和ZR = ft / fw> 2.5，其中Lv是距离 在远摄位置，变焦镜头的前顶点到胶片平面，ft是变焦镜头在远摄位置的焦距，fw是变焦镜头在广角位置的焦距。