公开(公告)号：US5684639A

公开(公告)日：1997-11-04

申请号：US580844

申请日：1995-12-29

申请人： Motoyuki Ohtake

发明人： Motoyuki Ohtake

IPC分类号： G02B15/20 ,  G02B15/173 ,  G02B15/177 ,  G02B15/22 ,  G02B15/14

CPC分类号： G02B15/177 ,  G02B15/173

摘要： A small zoom lens makes possible short distance focusing with a high zoom ratio and high performance using a simple lens barrel. A focusing second lens unit moves along the optical axis during focusing to the short distance object; a first lens unit is adjacent to and on the object side of the focusing lens unit; and a third lens unit is adjacent to and on the image side of the focusing lens unit. The second unit lens and the third lens unit move integrally together during zooming between a maximum wide-angle state and a maximum telephoto state. The focusing lens unit moves in conjunction with and relative to the second and third lens units. The first or the third lens unit has a positive focal length and the other has a negative focal length. Additionally, the first and third lens units satisfies the following condition: -0.6

摘要翻译： 小型变焦镜头可以实现短距离对焦，具有高变焦比和高性能，使用简单的镜筒。 聚焦第二透镜单元在聚焦到短距离物体期间沿着光轴移动; 第一透镜单元邻近于聚焦透镜单元的物体侧; 并且第三透镜单元邻近聚焦透镜单元的图像侧。 第二单位透镜和第三透镜单元在最大广角状态和最大望远状态之间的变焦期间一体地移动。 聚焦透镜单元与第二和第三透镜单元结合并相对于第二和第三透镜单元移动。 第一或第三透镜单元具有正焦距，另一个具有负焦距。 另外，第一和第三透镜单元满足以下条件：-0.6 <（fa + fb）/（fa-fb）<0.4其中fa =第一透镜单元的焦距，fb =第三透镜单元的焦距 。

公开(公告)号：US5630181A

公开(公告)日：1997-05-13

申请号：US709508

申请日：1996-09-06

申请人： Motoyuki Ohtake

发明人： Motoyuki Ohtake

IPC分类号： G02B15/20 ,  G02B15/173 ,  G03B17/00

CPC分类号： G02B15/173

摘要： A variable focal length optical system includes a first lens unit (G1) having a positive refractive power and arranged to be closest to an object, a final lens unit (Gb) having a negative refractive power and arranged to be closest to an image, the first lens unit (G1) and the final lens unit (Gb) moving to the object side when a focal length of an entire lens system changes from a smallest focal length state to a largest focal length state, and an aperture stop arranged on an image side of the first lens unit (G1) and on an object side of the final lens unit (Gb), wherein the variable focal length optical system satisfies the following conditions:0.25

摘要翻译： 可变焦距光学系统包括具有正折光力并且被布置为最靠近物体的第一透镜单元（G1），具有负折光力并被布置为最靠近图像的最终透镜单元（Gb）， 当整个透镜系统的焦距从最小焦距状态变化到最大焦距状态时，第一透镜单元（G1）和最终透镜单元（Gb）移动到物体侧，并且孔径光阑布置在图像上 第一透镜单元（G1）的侧面和最终透镜单元（Gb）的物体侧，其中可变焦距光学系统满足以下条件：0.25 <| fb | / f1 <0.450.7

公开(公告)号：US5617163A

公开(公告)日：1997-04-01

申请号：US667335

申请日：1996-06-20

申请人： Motoyuki Ohtake

发明人： Motoyuki Ohtake

IPC分类号： G03B15/05 ,  G03B15/03

CPC分类号： G03B15/05 ,  G03B2215/0503

摘要： A camera equipped with an illuminating optical system for illuminating a phototaking range of a phototaking lens is configured so that the illuminating optical system includes a light source and a direction unit for directing a light beam from the light source to illuminate the phototaking range, and so that the direction unit composed of includes a Fresnel lens having a cylindrical envelope plane.

摘要翻译： 配备有照明光学系统的照相装置，用于照射摄影镜头的摄影范围，使得照明光学系统包括光源和用于引导来自光源的光束以照亮光引射范围的方向单元，因此 构成的方向单元包括具有圆柱形包络面的菲涅尔透镜。

公开(公告)号：US5534687A

公开(公告)日：1996-07-09

申请号：US334324

申请日：1994-11-02

申请人： Motoyuki Ohtake

发明人： Motoyuki Ohtake

IPC分类号： G01C3/06 ,  G01M11/02 ,  G02B7/32 ,  G03B13/36 ,  G02B7/04

CPC分类号： G02B7/32

摘要： In order to provide a focus detecting optical system of the active type which is capable of effecting good focus detection and enables a space to be effectively used, the focus detecting optical system of the present invention is a focus detecting optical system provided with a light projecting system for applying a beam of light emitted from a light emission source to an object through a light projecting lens. A light receiving surface condenses the reflected beam of light from the object on a light receiving element through a light receiving lens, and measures the distance to the object on the basis of a change in the imaged position on the light receiving element to thereby detect the focus position. The light emission source is positioned with eccentricity by a predetermined distance from the center of the outer diameter of the light projecting lens in a direction orthogonal to the direction of a base length. The paraxial curvature center position of at least one lens surface of the light projecting lens is positioned with eccentricity by a predetermined distance from the center of the outer diameter of the lens in the direction orthogonal to the direction of the base length.

摘要翻译： 为了提供能够实现良好的焦点检测并且能够有效地利用空间的有源类型的焦点检测光学系统，本发明的焦点检测光学系统是设置有光投射的焦点检测光学系统 用于通过光投射透镜将从发光源发射的光束施加到物体的系统。 光接收表面通过光接收透镜将来自物体的物体的反射光束会聚在光接收元件上，并且基于光接收元件上的成像位置的变化来测量到物体的距离，从而检测 焦点位置。 发光源在与基准长度方向正交的方向上偏心距离投光透镜的外径的中心预定的距离。 光投射透镜的至少一个透镜表面的近轴曲率中心位置以与基底长度方向正交的方向偏心距透镜外径的中心偏心地定位。

公开(公告)号：US5496994A

公开(公告)日：1996-03-05

申请号：US296888

申请日：1994-08-29

申请人： Motoyuki Ohtake

发明人： Motoyuki Ohtake

IPC分类号： G01C3/06 ,  G01C3/10 ,  G02B7/32 ,  G02B13/18 ,  G02B7/04 ,  G01C3/08

CPC分类号： G01C3/10 ,  G02B7/32

摘要： Provided is an active range detection optical system which can measure a distance with high accuracy independent of the position of an object over the far-to-near range. The range detection optical system is provided with a light projection system for projecting a beam emitted from a light emission source through a light projection lens onto the object, and a light receiving system for condensing a reflection beam from the object through a light receiving lens onto a light receiving element, in which the optical axis of the light projection system and the optical axis of the light receiving system are positioned as separate a predetermined distance from each other, which is for measuring a distance between a predetermined position and the object, based on an output signal from the light receiving element, and which is characterized in that a position of the light-source-side focal point of the light projection lens is located between a surface closest to the light source, of the light projection lens and the light emission source.

摘要翻译： 提供了一种有源范围检测光学系统，其可以独立于远远到近的范围内的物体的位置而以高精度测量距离。 范围检测光学系统设置有用于将从发光源发射的光束通过光投射透镜投射到物体上的光投射系统，以及用于将来自物体的反射光束通过光接收透镜聚光到光接收系统的光接收系统 光接收元件，其中光投射系统的光轴和光接收系统的光轴被定位成彼此隔开预定距离，用于测量预定位置和物体之间的距离，基于 在来自光接收元件的输出信号上，其特征在于，光投射透镜的光源侧焦点的位置位于最靠近光源的表面，光投射透镜和 发光源。

公开(公告)号：US5493447A

公开(公告)日：1996-02-20

申请号：US299410

申请日：1994-09-01

申请人： Motoyuki Ohtake

发明人： Motoyuki Ohtake

IPC分类号： G02B15/20 ,  G02B15/173 ,  G02B15/14

CPC分类号： G02B15/173

摘要： The purpose of the present invention is to provide a zoom lens capable of reducing the whole length of the zoom lens in a telescopic end and effective diameters of front lenses thereof, decreasing the number of lenses thereof to enable miniaturization of the zoom lens, and obtaining great zoom ratio. The zoom lens of the present invention has, in the following order from the object side, a first lens group G1 with a positive refractive power, a second lens group G2 with a negative refractive power, a third lens group G3 with a positive refractive power and a fourth lens group G4 with a negative refractive power wherein in a refractive power varying operation from a wide-angle end to a telescopic end, the first lens group G1 and the fourth lens group G4 are moved to the object side, the distance of an air space between the first lens group G1 and the second lens group G2 is increased and the distance of an air space between the third lens group G3 and the fourth lens group G4 is decreased, the following condition is satisfied:1.47

摘要翻译： 本发明的目的是提供一种变焦透镜，其能够缩小变焦透镜在伸缩端的整个长度，并且其前透镜的有效直径减小其透镜数量，以实现变焦镜头的小型化，并获得 伟大的变焦比。 本发明的变焦透镜从物体侧按照以下顺序具有正屈光力的第一透镜组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 以及具有负屈光力的第四透镜组G4，其中在从广角端到伸缩端的屈光力变化操作中，第一透镜组G1和第四透镜组G4移动到物体侧，距离 第一透镜组G1和第二透镜组G2之间的空气空间增加，并且第三透镜组G3和第四透镜组G4之间的空间距离减小，满足以下条件：1.47 <（dt34- dw34）x psi 3x psi 4x（Ft-Fw）<2.00，Fw / r4 <-0.1。

公开(公告)号：US5349402A

公开(公告)日：1994-09-20

申请号：US124670

申请日：1993-09-21

申请人： Isao Soshi ,  Hidenori Miyamoto ,  Motoyuki Ohtake ,  Hiroshi Wakabayashi

发明人： Isao Soshi ,  Hidenori Miyamoto ,  Motoyuki Ohtake ,  Hiroshi Wakabayashi

IPC分类号： G03B17/24

CPC分类号： G03B17/24 ,  G03B2217/243

摘要： A data imprinting device for a camera has a light source, a diaphragm member, and an optical member mounted on support structures integrally formed in a body of the camera. Another embodiment of the invention includes first and second optical members for imprinting data at two respective locations, upon a film, corresponding to full size and panorama size modes of operation. A shutter slides to obstruct emergent light from one of the first and second optical member thus disabling it from imprinting. The first and second optical members are integrally formed in a bracket structure which is mounted in a body of the camera. Embodiments includes the first and second optical members having emergent planes equidistant from the film. The first and second optical elements have incident planes either offset in a direction parallel with the film or perpendicular to it. Similar exposure characteristic at the two respective locations are maintained by controlling numerical apertures and transmittances of the first and second optical members.

摘要翻译： 用于相机的数据记录装置具有光源，隔膜部件和安装在整体形成在相机主体中的支撑结构上的光学部件。 本发明的另一实施例包括第一和第二光学构件，用于在胶片上的两个相应位置处压印数据，对应于全尺寸和全景大小的操作模式。 A挡板滑动以阻止来自第一和第二光学构件之一的紧急光，从而使其不被打印。 第一和第二光学构件一体地形成在安装在照相机的主体中的支架结构中。 实施例包括具有与膜等距的出射平面的第一和第二光学构件。 第一和第二光学元件具有入射平面或者与平行于膜的方向偏移或垂直于其。 通过控制第一和第二光学构件的数值孔径和透射率来保持两个相应位置处的类似曝光特性。

公开(公告)号：US08228620B2

公开(公告)日：2012-07-24

申请号：US12923549

申请日：2010-09-28

申请人： Motoyuki Ohtake ,  Masayuki Murata ,  Atsuo Kikuchi

发明人： Motoyuki Ohtake ,  Masayuki Murata ,  Atsuo Kikuchi

IPC分类号： G02B9/60

CPC分类号： G02B15/173 ,  G02B13/18

摘要： Disclosed herein is a variable focal length lens system including a first lens group, a second lens group, a third lens group, a fourth lens group, and a fifth lens group. The first to the fifth lens groups are arranged in order from an object side. The variable focal length lens system satisfies following conditional expressions (1) to (3): 0.95

摘要翻译： 本发明公开了一种包括第一透镜组，第二透镜组，第三透镜​​组，第四透镜组和第五透镜组的可变焦距透镜系统。 第一至第五透镜组从物体侧依次排列。 可变焦距透镜系统满足以下条件表达式（1）至（3）：0.95

公开(公告)号：US07920332B2

公开(公告)日：2011-04-05

申请号：US12654934

申请日：2010-01-08

申请人： Motoyuki Ohtake

发明人： Motoyuki Ohtake

IPC分类号： G02B15/14

CPC分类号： G02B15/173

摘要： A variable-focal-length lens system includes first to fifth lens groups having positive, negative, positive, negative, and positive refractive powers, respectively, from the object side. As the lens-position state changes from wide-angle to telephoto, the air space between the first and second lens groups increases, the air space between the second and third lens groups decreases, the air space between the third and fourth lens groups changes, the air space between the fourth and fifth lens groups increases, the first lens group moves monotonously toward the object, the second lens group is fixed in the optical-axis direction, and the third and fourth lens groups move toward the object. Conditions 0.2

摘要翻译： 可变焦距透镜系统包括从物体侧分别具有正，负，正和正折射光焦度的第一至第五透镜组。 当透镜位置状态从广角变化到长焦时，第一和第二透镜组之间的空气空间增加，第二和第三透镜组之间的空气间隙减小，第三和第四透镜组之间的空气空间发生变化， 第四透镜组和第五透镜组之间的空间增加，第一透镜组朝向物体单调移动，第二透镜组在光轴方向上固定，第三透镜​​组和第四透镜组朝向物体移动。 满足条件0.2

公开(公告)号：US07848028B2

公开(公告)日：2010-12-07

申请号：US12458708

申请日：2009-07-21

申请人： Motoyuki Ohtake

发明人： Motoyuki Ohtake

IPC分类号： G02B15/14

CPC分类号： G02B15/173

摘要： A variable focal length lens system includes: a first lens group having a positive refracting power; a second lens group having a negative refracting power; a third lens group having a positive refracting power; a fourth lens group having a negative refracting power; a fifth lens group having a negative refracting power; and a sixth lens group having a positive refracting power; the first to sixth lens groups being disposed in order from an object side.