公开(公告)号：US06775073B2

公开(公告)日：2004-08-10

申请号：US09978776

申请日：2001-10-18

申请人： Yuji Kamo

发明人： Yuji Kamo

IPC分类号： G02B1514

CPC分类号： G02B17/086 ,  G02B17/0848 ,  G02B17/0896 ,  G02B23/145

摘要： The invention relates to a compact, high-performance yet wide-field real image type zoom finder comprising a positive objective optical system Ob and a positive eyepiece optical system Ep and further including an image-inverting means for erecting an real image formed by the objective optical system. The objective optical system Ob comprises a plurality of moving groups G2 and G3, and the eyepiece optical system Ep comprises positive reflecting surfaces, at least one of which is defined by a rotationally asymmetric surface, and satisfies conditions 1.25

摘要翻译： 本发明涉及一种紧凑，高性能的宽视场实像图像缩放取景器，其包括正物镜光学系统Ob和正目镜光学系统Ep，并且还包括用于竖立由物镜形成的真实图像的图像反转装置 光学系统。 目标光学系统Ob包括多个移动组G2和G3，并且目镜光学系统Ep包括正反射表面，其中至少一个由旋转非对称表面限定，并且满足条件1.25

公开(公告)号：US06771434B2

公开(公告)日：2004-08-03

申请号：US10400474

申请日：2003-03-28

申请人： Ken Hirunuma ,  Gouji Funatsu ,  Atsumi Kaneko

发明人： Ken Hirunuma ,  Gouji Funatsu ,  Atsumi Kaneko

IPC分类号： G02B1514

CPC分类号： G02B7/06 ,  G02B23/18

摘要： An optical device comprises a lens barrel and a casing. The casing has two casing sections that are movable relative to each other. A distribution cable is provided in the casing, and extends between the casing sections. The distribution cable is loosely wound around the lens barrel, whereby a movement of the distribution cable, caused by a relative movement of the casing sections, is absorbed by the loosely wound portion of the distribution cable.

摘要翻译： 光学装置包括透镜镜筒和外壳。 壳体具有可相对于彼此移动的两个壳体部分。 分配电缆设置在壳体中，并且在壳体部分之间延伸。 分配电缆松动地缠绕在镜筒上，由此由配置电缆的松动缠绕部分吸收由配置电缆的相对运动引起的配电电缆的移动。

公开(公告)号：US06754011B2

公开(公告)日：2004-06-22

申请号：US10376601

申请日：2003-03-03

申请人： Satoshi Todani

发明人： Satoshi Todani

IPC分类号： G02B1514

CPC分类号： G02B7/10

摘要： A high zoom ratio lens with a reduced number of barrel components or elements of a telescopic barrel having a light-weight outermost diameter. The zoom lens comprises first to fourth groups of lenses, a fixed barrel, a first cam barrel inside the fixed barrel, a linear barrel inside the first cam barrel, a focusing cam inside the linear barrel, and a second cam barrel outside the fixed barrel and rotatably connected to the first cam barrel. The first group of lenses move for zooming by a second—A cam in the linear barrel, and either third or fourth group of lenses move for zooming by a cam in the first cam barrel. The second group lenses move for focusing by a second—B cam in the focusing cam.

摘要翻译： 具有减少数量的桶部件或具有轻质最外径的伸缩筒的元件的高变焦倍率透镜。 变焦镜头包括第一至第四组透镜，固定镜筒，固定镜筒内的第一凸轮筒，第一凸轮筒内的直线镜筒，直线镜筒内的聚焦凸轮，以及固定镜筒外的第二凸轮筒 并且可旋转地连接到第一凸轮筒。 第一组透镜通过直线镜筒中的第二A凸轮移动，并且第三组或第四组透镜通过第一凸轮筒中的凸轮移动以进行变焦。 第二组透镜移动用于聚焦在聚焦凸轮中的第二B凸轮。

公开(公告)号：US06751030B2

公开(公告)日：2004-06-15

申请号：US10452029

申请日：2003-05-30

申请人： Hiroshi Saruwatari

发明人： Hiroshi Saruwatari

IPC分类号： G02B1514

CPC分类号： G02B15/173

摘要： A zoom lens comprising four lens units is disclosed which achieves a high variable magnification ratio and favorable optical performance at an arbitrary zoom position. The zoom lens of the present invention includes, in order from an object side, a first lens unit having positive optical power, a second lens unit having a negative optical power, a third lens unit having a positive optical power, and a fourth lens unit having a positive optical power. During zooming from the wide angle end to the telephoto end, the spacing between the first and second lens units is increased, the spacing between the second and third lens units is decreased, the spacing between the third and fourth lens units is increased, and an aperture stop moves together with the third lens unit. In addition, specific conditions are satisfied.

摘要翻译： 公开了一种包括四个透镜单元的变焦透镜，其在任意变焦位置实现高可变放大率和良好的光学性能。 本发明的变焦透镜从物体侧依次包括具有正光焦度的第一透镜单元，具有负光焦度的第二透镜单元，具有正光焦度的第三透镜单元和第四透镜单元 具有正光焦度。 在从广角端到长焦端的变焦期间，第一和第二透镜单元之间的间隔增大，第二和第三透镜单元之间的间隔减小，第三和第四透镜单元之间的间隔增加，并且 孔径光阑与第三透镜单元一起移动。 另外，满足特定条件。

公开(公告)号：US06744565B1

公开(公告)日：2004-06-01

申请号：US09444811

申请日：1999-11-22

申请人： Atsushi Kashitani ,  Toshiyasu Nakao

发明人： Atsushi Kashitani ,  Toshiyasu Nakao

IPC分类号： G02B1514

CPC分类号： F16M11/2014 ,  F16M11/10 ,  F16M11/18 ,  F16M2200/041

摘要： A biaxial driving mechanism, an image inputting apparatus used this biaxial driving mechanism and a light projecting apparatus used this biaxial driving mechanism, in which a mirror positioned in front of a camera or a light projecting instrument is rotated biaxially, and takes an image of a desiring direction or projects an image to a desiring direction without having an electric connection between the mirror and a driving part, are provided. In the biaxial driving mechanism, a horizontal rotating mechanism provides a ring gear, whose center axis is the same as that of an optical axis of a camera, holds a mirror, and a motor for rotating the ring gear around the optical axis of the camera. And also, in the biaxial driving mechanism, a vertical rotating mechanism provides an end cam gear, whose center axis is the same as that of the optical axis of the camera and its thickness changes along its circumference direction, a motor for rotating the end cam gear around the optical axis of the camera, a link mechanism, whose one end is fitted to the mirror in a stage that the one end can rotate, and at the other end a rolling bearing is fitted and the rolling bearing contacts the upper face of the end cam gear, and a spring pushes the link mechanism to the end cam gear.

摘要翻译： 使用该双轴驱动机构的双轴驱动机构，使用该双轴驱动机构的图像输入装置和使用该双轴驱动机构的投光装置，其中位于相机前方的反射镜或投光仪器双轴旋转，并且拍摄图像 提供了希望的方向或将图像投射到期望的方向，而不会在反射镜和驱动部分之间具有电连接。 在双轴驱动机构中，水平旋转机构提供一个环形齿轮，其中心轴与相机的光轴相同，保持反射镜，以及用于围绕相机的光轴旋转齿圈的马达 。 此外，在双轴驱动机构中，垂直旋转机构提供端部凸轮齿轮，其中心轴与照相机的光轴相同，并且其厚度沿其圆周方向变化，用于使端部凸轮旋转的电动机 围绕照相机的光轴的齿轮，连杆机构，其一端在一端可旋转的阶段装配到反射镜，另一端装配有滚动轴承，滚动轴承接触到 端部凸轮齿轮和弹簧将连杆机构推动到端部凸轮齿轮。

公开(公告)号：US06717741B2

公开(公告)日：2004-04-06

申请号：US10145817

申请日：2002-05-16

申请人： Takanori Yamanashi

发明人： Takanori Yamanashi

IPC分类号： G02B1514

CPC分类号： G02B15/161

摘要： The invention relates to a two-group zoom lens of +− construction, which, albeit having a high zoom ratio, is reduced in length not only at the wide-angle end but also at the telephoto end and has a low telephoto ratio at the telephoto end where the length of the system becomes longest. The zoom lens comprises a first lens group G1 having positive refracting power and a second lens group G2 having negative refracting power. For zooming from the wide-angle end to the telephoto end of the system, each lens group moves toward the object side while the spacing between the first and second lens groups G1 and G2 becomes narrow. Specific conditions for the focal length of the second lens group G2, the amount of movement of the second lens group G2 and the zoom ratio shared by the second lens group G2 are satisfied.

摘要翻译： 本发明涉及+构造的双组变焦透镜，其尽管具有高变焦比，但不仅在广角端而且在望远端处也减小了长度，并且在长焦比处具有低的长焦比 长焦端，系统长度最长。 变焦透镜包括具有正折射率的第一透镜组G1和具有负折射光焦度的第二透镜组G2。 为了从广角端到远摄端的放大，每个透镜组朝向物体侧移动，同时第一和第二透镜组G1和G2之间的间隔变窄。 满足第二透镜组G2的焦距的特定条件，第二透镜组G2的移动量和由第二透镜组G2共享的变焦倍率。

公开(公告)号：US06714357B2

公开(公告)日：2004-03-30

申请号：US10325960

申请日：2002-12-23

申请人： Yoshihiro Yamazaki

发明人： Yoshihiro Yamazaki

IPC分类号： G02B1514

CPC分类号： G02B7/08

摘要： A lens drive system includes a lens frame having a lens element; a nut member secured to the lens frame; a feed screw shaft having a male thread portion and a non-threaded portion, the male thread portion engaged with a screw hole of the nut member; an engagement portion formed on the nut member and having a deformable screw-engaging portion engaged with the male thread portion; and a motor for rotating the feed screw shaft. The screw-engaging portion is disengaged from the male thread portion when a large force is applied to the engagement portion in an axial direction. When the linear movement of the lens frame and the nut member is restricted during rotation of the feed screw shaft, the engagement portion remains on the male thread portion of the feed screw shaft while the female thread portion is moved onto the non-thread portion.

摘要翻译： 透镜驱动系统包括具有透镜元件的透镜框架; 固定在透镜框上的螺母构件; 具有阳螺纹部分和非螺纹部分的进给螺杆轴，阳螺纹部分与螺母构件的螺纹孔接合; 接合部，形成在所述螺母构件上，并且具有与所述阳螺纹部接合的可变形的螺纹接合部; 以及用于旋转进给丝杠轴的马达。 当在轴向上对接合部施加大的力时，螺纹接合部从外螺纹部脱离。 当进给螺杆轴旋转期间，透镜框架和螺母构件的直线运动受到限制，当内螺纹部分移动到非螺纹部分上时，接合部分保持在进给螺杆轴的外螺纹部分上。

公开(公告)号：US06707620B2

公开(公告)日：2004-03-16

申请号：US09961231

申请日：2001-09-24

申请人： Hiroshi Nomura ,  Takamitsu Sasaki ,  Kazunori Ishizuka ,  Maiko Takashima

发明人： Hiroshi Nomura ,  Takamitsu Sasaki ,  Kazunori Ishizuka ,  Maiko Takashima

IPC分类号： G02B1514

CPC分类号： G02B7/102

摘要： A zoom lens mechanism includes a switching lens group frame which supports a first sub-lens group frame and a second sub-lens group frame; a shift cam mechanism provided on opposed surfaces of the first and second sub-lens group frames, respectively, the shift cam mechanism causing the first and second sub-lens group frames to move to a mutually close position or mutually distant position; an actuator ring for providing relative rotation between the first and second sub-lens group frames; a receiving surface provided on the switching lens group frame wherein a rear end surface of the actuator ring abuts against the receiving surface; and a biasing device for biasing the first sub-lens group frame toward the actuator ring to force the first and second sub-lens group frames, and the actuator ring against the receiving surface, so that the shift cam mechanism come into contact with each other.

摘要翻译： 变焦透镜机构包括支撑第一子透镜组框架和第二子透镜组框架的切换透镜组框架; 分别设置在第一和第二子透镜组框架的相对表面上的移动凸轮机构，使得第一和第二子透镜组框架移动到相互靠近的位置或相互远离的位置的移动凸轮机构; 用于在第一和第二子透镜组框架之间提供相对旋转的致动器环; 设置在切换透镜组框架上的接收表面，其中致动器环的后端表面抵靠接收表面; 以及用于将第一子透镜组框架朝向致动器环偏置以将第一和第二子透镜组框架以及致动器环压靠在接收表面上的偏置装置，使得变速凸轮机构彼此接触 。

公开(公告)号：US06657791B2

公开(公告)日：2003-12-02

申请号：US09852307

申请日：2001-05-10

申请人： Takeshi Nishimura

发明人： Takeshi Nishimura

IPC分类号： G02B1514

CPC分类号： G02B15/177

摘要： A zoom lens includes, in succession from the object side, a first lens unit of negative optical power, a second lens unit of positive optical power, a third lens unit of positive optical power and a fourth lens unit of negative optical power. In case of zooming from the wide angle end to the telephoto end, the spacing between the first lens unit and the second lens unit is increased, the spacing between the second lens unit and the third lens unit is increased, and the spacing between the third lens unit and the fourth lens unit is decreased. At least one of the first to fourth lens units has a diffraction optical portion.

公开(公告)号：US06646815B2

公开(公告)日：2003-11-11

申请号：US10024263

申请日：2001-12-21

申请人： Shinsuke Nobe

发明人： Shinsuke Nobe

IPC分类号： G02B1514

CPC分类号： G02B15/177 ,  G03B13/22

摘要： A zoom lens, comprises: three lens groups including a first lens group having a negative refracting power, a second lens group having a positive refracting power and a third lens group having a positive refracting power arranged serially in this order from the object side. The second lens group comprises a positive lens, a cemented lens including a positive lens and a negative lens and one lens arranged serially in this order from the object side. The following conditional expression is satisfied; 0.4

摘要翻译： 变焦透镜包括：三个透镜组，包括具有负折射力的第一透镜组，具有正折射率的第二透镜组和具有正折射率的第三透镜组，所述第三透镜组从物体侧依次排列。 第二透镜组包括正透镜，包括正透镜和负透镜的胶合透镜以及从物体侧依次排列的一个透镜。 满足以下条件表达式：其中f2表示第二透镜组的焦距，fw表示广角端的总光学系统的焦距。