公开(公告)号：US5249079A

公开(公告)日：1993-09-28

申请号：US573874

申请日：1990-08-28

申请人： Hiromu Umeda

发明人： Hiromu Umeda

IPC分类号： G02B15/20 ,  G02B15/173 ,  G02B27/64 ,  G03B5/00

CPC分类号： G02B15/173 ,  G02B27/646

摘要： A lens system comprises a plurality of lens elements, including a deflecting lens group, to stabilize a blurred image at a focal plane. The deflecting lens group moves slightly in a circular orbit around a predetermined central point on an optical axis of the lens system, resulting in the deflecting lens group being decentered in a direction perpendicular to the optical axis of the lens system and at the same time an optical axis of the deflecting lens group being inclined relative to the optical axis of the lens system.

摘要翻译： 透镜系统包括多个透镜元件，包括偏转透镜组，以在焦平面处稳定模糊图像。 偏转透镜组围绕透镜系统的光轴上的预定中心点以圆形轨道稍微移动，导致偏转透镜组在垂直于透镜系统的光轴的方向上偏心，并且同时 偏转透镜组的光轴相对于透镜系统的光轴倾斜。

公开(公告)号：US5153777A

公开(公告)日：1992-10-06

申请号：US622715

申请日：1990-12-05

申请人： Takashi Okada ,  Akira Fukushima ,  Hiromu Umeda ,  Hisashi Tokumaru ,  Junji Hashimura ,  Hisayuki Masumoto

发明人： Takashi Okada ,  Akira Fukushima ,  Hiromu Umeda ,  Hisashi Tokumaru ,  Junji Hashimura ,  Hisayuki Masumoto

IPC分类号： G02B13/18 ,  G02B15/16 ,  G02B15/173

CPC分类号： G02B15/173

摘要： A compact-size, light-weight, low-cost zoom lens system with high optical quality is achieved by using a ray restrictor placed at the most object side of the zoom lens system. In one type, the ray resistor shifts toward the object at a speed different from that of the most object side lens of the zoom lens system as the zoom lens system is zoomed toward the longest focal length, which effectively blocks harmful rays causing coma flare in the peripheral area. In another type, the aperture diameter of the ray restrictor varies according to a zooming operation. The ray restrictor of any type is especially effective when used in a zoom lens system composed of two lens groups. By introducing one or more aspherical surfaces satisfying a certain condition (or conditions) in the zoom lens system, various aberrations are further favorably corrected.

摘要翻译： 通过使用放置在变焦透镜系统的最物体侧的射线限制器来实现具有高光学质量的紧凑型，重量轻，低成本的变焦透镜系统。 在一种类型中，随着变焦透镜系统朝向最长焦距变焦，射线电阻以与变焦透镜系统的最物体侧透镜的速度不同的速度朝向物体移动，这有效地阻挡了导致昏迷的有害射线 周边地区。 在另一种类型中，光线限制器的孔径根据变焦操作而变化。 当用于由两个透镜组组成的变焦透镜系统中时，任何类型的光线限制器是特别有效的。 通过在变焦透镜系统中引入满足一定条件（或条件）的一个或多个非球面，可进一步有利地校正各种像差。

公开(公告)号：US5168403A

公开(公告)日：1992-12-01

申请号：US623298

申请日：1990-12-06

申请人： Hiromu Umeda ,  Akira Fukushima ,  Takashi Okada ,  Junji Hashimura ,  Hisayuki Masumoto

发明人： Hiromu Umeda ,  Akira Fukushima ,  Takashi Okada ,  Junji Hashimura ,  Hisayuki Masumoto

IPC分类号： G02B13/18 ,  G02B15/16 ,  G02B27/46 ,  G03B5/00

CPC分类号： G02B15/16

摘要： A zoom lens system comprises from the object side, a front lens group having a refractive power of a predetermined sign and a rear lens group having a refractive power of different sign from that of the front lens group. The front lens group is shiftable along the optical axis of the lens system in a zooming operation, and movable perpendicularly to the optical axis for decreasing a blur caused by a hand shake. The rear lens group is shiftable along the optical axis in the zooming operation.

摘要翻译： 变焦透镜系统包括物体侧具有预定符号的折射力的前透镜组和具有与前透镜组的折射力不同的折光力的后透镜组。 前透镜组可以在变焦操作中沿着透镜系统的光轴移动，并且可垂直于光轴移动，以减少由手摇引起的模糊。 在变焦操作中，后透镜组可沿光轴移动。

公开(公告)号：US5875060A

公开(公告)日：1999-02-23

申请号：US604449

申请日：1996-02-21

申请人： Hiromu Umeda

发明人： Hiromu Umeda

IPC分类号： G02B13/18 ,  G02B15/16 ,  G02B15/177 ,  G02B15/14

CPC分类号： G02B15/177

摘要： A zoom lens system includes, in order from the object side to the image side, a first lens unit, having a negative refractive power, which moves along an optical axis during a zooming operation, a stop diaphragm which moves along the optical axis with the first lens unit at one body during the zooming operation, and a second lens unit having a positive refractive power.

摘要翻译： 变焦透镜系统从物体侧到像侧依次包括在变焦操作期间沿着光轴移动的具有负折光力的第一透镜单元，沿着光轴移动的停止光阑， 在变焦操作期间在一个主体处的第一透镜单元和具有正折光力的第二透镜单元。

公开(公告)号：US5327290A

公开(公告)日：1994-07-05

申请号：US595389

申请日：1990-10-10

申请人： Akira Fukushima ,  Takashi Okada ,  Junji Hashimura ,  Hiromu Umeda ,  Hisayuki Masumoto ,  Hisashi Tokumaru

发明人： Akira Fukushima ,  Takashi Okada ,  Junji Hashimura ,  Hiromu Umeda ,  Hisayuki Masumoto ,  Hisashi Tokumaru

IPC分类号： G02B15/16 ,  G02B15/14 ,  G02B13/18

CPC分类号： G02B15/161

摘要： A new compact-size, light-weight and low-cost zoom lens system having a high optical quality with a very simple structure including, from the object side to the image side, a front lens group having a positive refractive power and a rear lens group having a negative refractive power. The zoom lens system is operated by changing the axial air distance between the front and rear lens groups during a zooming operation. The zoom lens system uses aspherical surfaces whose low-cost manufacturing has been enabled by the recent progresses in plastic molding technology and glass molding technology. Many embodiments of the lens compositions according to the present invention, and further more specific examples of the embodiments are described with figures and data that show compactness and high optical performance.

摘要翻译： 一种新型紧凑型，重量轻，成本低的变焦透镜系统，其具有高光学质量，结构非常简单，包括从物体侧到像侧，具有正折光力的前透镜组和后透镜 组具有负屈光力。 通过在变焦操作期间改变前后透镜组之间的轴向空气距离来操作变焦透镜系统。 变焦透镜系统采用非球面，其最近在塑料成型技术和玻璃成型技术方面进行了低成本的制造。 使用显示紧凑性和高光学性能的图形和数据来描述根据本发明的透镜组合物的许多实施例以及实施例的更具体的示例。