公开(公告)号：US4368956A

公开(公告)日：1983-01-18

申请号：US218576

申请日：1980-12-22

申请人： Yasuyuki Yamada ,  Kikuo Momiyama

发明人： Yasuyuki Yamada ,  Kikuo Momiyama

IPC分类号： G02B9/34 ,  G02B9/36 ,  G02B13/04 ,  G02B13/18 ,  G02B3/04

CPC分类号： G02B13/04 ,  G02B9/36

摘要： The objective disclosed includes, from front to rear, a positive meniscus lens of forward convexity, a negative lens, a positive lens, and a negative meniscus lens having an aspheric front surface concave toward the front, and fulfills the following requirements: ##EQU1## where f is the focal length of the entire system;fA is the focal length of the air lens defined by the opposing surfaces of the first and second lenses counting from the front; and ##EQU2## wherein r.sub.7 is the paraxial radius of curvature of the front surface of the 4th lens; andr.sub.7 * is the radius of curvature of the lens reference spherical surface defined by ##EQU3##

摘要翻译： 所公开的目的是从前方向后方具有向前凸起的正弯月形透镜，负透镜，正透镜和具有朝向前方凹入的非球面前表面的负弯月形透镜，并且满足以下要求：-1.5f 其中f是整个系统的焦距; fA是从前面计数的第一和第二透镜的相对表面限定的空气透镜的焦距; 和 + TR ，其中r7是第四透镜的前表面的近轴曲率半径; 并且r7 *是由定义的透镜基准球面的曲率半径

公开(公告)号：US4364643A

公开(公告)日：1982-12-21

申请号：US153861

申请日：1980-05-28

申请人： Kikuo Momiyama

发明人： Kikuo Momiyama

IPC分类号： G02B9/62 ,  G02B13/00 ,  G02B11/32

CPC分类号： G02B13/00 ,  G02B9/62

摘要： Disclosed is a photographic lens with improved correction for off-axis halo and image plane distortion, and composed of seven lenses in six components. The first component consists of a positive meniscus lens having a convex surface toward the object, the second component a positive meniscus lens having a convex surface toward the object, the third component a negative meniscus lens having a convex surface toward the object, the fourth component a negative meniscus lens consisting of a negative and a positive lens cemented to each other and having a convex surface toward the image as a whole, the fifth component a positive meniscus lens having a convex surface toward the image and the sixth component a bi-convex lens; with the conditions:(1) 1.75 45.(3) 1.85

摘要翻译： 公开了一种具有改进的偏轴晕和图像平面失真校正的摄影镜头，由六个组件中的七个镜头组成。 第一部件包括具有朝向物体的凸面的正弯月透镜，第二部件为具有朝向物体的凸面的正弯月透镜，第三部件为朝向物体的凸面的负弯月形透镜，第四部件 第一部分是具有朝向图像的凸面的正弯月形透镜，第六部件为双凸形 镜片; 条件是：（1）1.75 <（N1 + N2 + N5 + N6 + N7）/ 5（2）（nu 1+ nu 2+ nu 5+ nu 6+ nu 7）/ 5> 45。 （3）1.85

公开(公告)号：US4299453A

公开(公告)日：1981-11-10

申请号：US55073

申请日：1979-07-05

申请人： Kikuo Momiyama ,  Shigeru Kamata

发明人： Kikuo Momiyama ,  Shigeru Kamata

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

CPC分类号： G02B15/177

摘要： The present invention relates to an objective lens for zooming by varying the distance between the divergent front lens group and the convergent rear lens group consisting of a first sub-group for forming a convergent light beam and a second sub-group between which sub-groups a photographing aperture is provided so as to be independent from them, whereby when the rear lens group is displaced forward for zooming the photographing aperture is displaced backward with reference to the first sub-group.

摘要翻译： 本发明涉及一种用于通过改变发散前透镜组与会聚后透镜组之间的距离进行变焦的物镜，该会聚后透镜组由用于形成会聚光束的第一子组和第二子组组成，其中子组 提供了一种与它们独立的拍摄孔径，由此当后透镜组向前移位以进行变焦时，参考第一子组向后移动拍摄孔径。

公开(公告)号：US4165151A

公开(公告)日：1979-08-21

申请号：US806507

申请日：1977-06-14

申请人： Kikuo Momiyama

发明人： Kikuo Momiyama

IPC分类号： G02B17/08 ,  G02B17/00

CPC分类号： G02B17/0852 ,  G02B17/0808 ,  G02B17/0856 ,  G02B17/0884

摘要： The present invention relates to a catadioptric optical system provided with two-reflecting surfaces, or a reflecting-refractive type objective. A two-reflecting catadioptric optical system includes a front positive lens having a front surface of which the radius of curvature is smaller than that of a rear surface thereof, a negative meniscus lens positioned on the image side of said front positive lens in axially aligned relation thereto, having a front surface concave toward the front, and having a rear surface provided with a mirrored portion surrounding a light-permeable region, a positive meniscus lens convex toward the front and arranged between said front positive lens and said negative meniscus lens, a convex mirror facing to the rear and arranged between said front positive lens and said positive meniscus lens, a negative lens cemented together with the front surface of said negative meniscus lens, and a positive lens cemented together with the rear surface of the negative meniscus lens at the light-permeable region thereof.

摘要翻译： 本发明涉及一种具有双反射面的反折射光学系统或反射折射型物镜。 双反射反折射光学系统包括前正透镜，前正表面的曲率半径小于其后表面的正面透镜，位于所述前正透镜的像侧的负弯月形透镜的轴向对准关系 具有朝向前方凹陷的前表面，并且具有设置有围绕透光区域的镜面部分的后表面，朝向前方凸起并布置在所述前正透镜和所述负弯月形透镜之间的正弯月形透镜， 凸面镜面朝向后方并且布置在所述前正透镜和所述正弯月透镜之间，负透镜与所述负弯月形透镜的前表面粘合在一起，并且正透镜与阴弯月透镜的后表面胶合在一起 其透光区域。

公开(公告)号：US3944339A

公开(公告)日：1976-03-16

申请号：US485555

申请日：1974-07-03

申请人： Kikuo Momiyama

发明人： Kikuo Momiyama

IPC分类号： G02B9/34

CPC分类号： G02B9/34

摘要： A photographic objective lens system for adaption with a diaphragm located in front of the entire system. The lens system comprises positive front and rear lenses and a negative intermediate lens in optical alignment with each other. The front lens is in the form of a positive meniscus doublet composed of a double convex lens and double concave lens cemented together at their adjoining surfaces. The intermediate lens is a double concave singlet. The rear lens consists of a positive meniscus front singlet of rearward convexity and a positive meniscus rear singlet of forward convexity. This objective is so designed as to have a relative aperture of at most two in F-number and a field angle as wide as 44.degree. while nevertheless preserving an excellent state of correction of various aberrations.

摘要翻译： 一种摄影物镜系统，适用于位于整个系统前面的隔膜。 透镜系统包括正的前后透镜和彼此光学对准的负中间透镜。 前透镜是由双凸透镜和双凹透镜组成的正弯月面双面的形式，在其相邻表面处胶合在一起。 中间透镜是双凹单峰。 后透镜由向后凸起的正弯月面前侧单体和向前凸起的正弯月面后方单体组成。 该目的被设计为具有在F数中至多两个的相对孔径和宽度为44°的场角，同时保持了各种像差的良好校正状态。

公开(公告)号：US4830477A

公开(公告)日：1989-05-16

申请号：US724280

申请日：1985-04-17

申请人： Sadatoshi Takahashi ,  Keiji Ikemori ,  Nozomu Kitagishi ,  Tsunefumi Tanaka ,  Takashi Matsushita ,  Kikuo Momiyama

发明人： Sadatoshi Takahashi ,  Keiji Ikemori ,  Nozomu Kitagishi ,  Tsunefumi Tanaka ,  Takashi Matsushita ,  Kikuo Momiyama

IPC分类号： G02B15/02 ,  G02B15/173 ,  G02B15/20

CPC分类号： G02B15/173

摘要： A zoom lens comprising, from front to rear, a first zoom section and a second zoom section, the first zoom section having a plurality of movable lens units which simultaneously move to effect zooming, and the second zoom section having a plurality of axially movable lens units, the light beam exiting from the rearmost unit in the first section enters directly the frontmost unit in the second section, and the refractive powers of the front and rear lens units are made positive and negative respectively, whereby the front and rear lens units are simultaneously moved in such a way that the magnifying power of the rear lens unit remains positive when the focal length of the entire system varies.

摘要翻译： 一种变焦透镜，包括从前到后的第一变焦部分和第二变焦部分，所述第一变焦部分具有同时移动以实现变焦的多个可移动透镜单元，并且所述第二变焦部分具有多个可轴向移动的透镜 在第一部分中从最后面单元排出的光束直接进入第二部分中的最前面的单元，并且前后透镜单元的折射力分别为正负透镜单元， 同时移动，使得当整个系统的焦距变化时，后透镜单元的放大倍率保持为正。

公开(公告)号：US4717819A

公开(公告)日：1988-01-05

申请号：US677207

申请日：1984-12-03

申请人： Kikuo Momiyama ,  Kazuo Fujibayashi ,  Keiji Ohtaka

发明人： Kikuo Momiyama ,  Kazuo Fujibayashi ,  Keiji Ohtaka

IPC分类号： G02B7/32 ,  G03B3/00 ,  G03B3/10 ,  G01J1/36 ,  G01C3/08

CPC分类号： G03B3/10

摘要： A focus detecting device arranged to detect the focusing condition of an objective lens by projecting a light flux from a light source onto an object through the objective lens and by sensing the light flux after it is reflected from the object. The focus detecting device is provided with sensors which produce information necessary for detecting the focal point of the objective lens by sensing the light of the light source reflected by the object. Degradation of the device's detection accuracy due to the eccentrically mounted objective lens is prevented when these sensors are symmetrically arranged relative to a plane containing the optical axis of the objective lens.

摘要翻译： 一种焦点检测装置，其被配置为通过将来自光源的光束投射到物体上并通过在物体被反射之后感测光束来检测物镜的聚焦状态。 焦点检测装置设置有传感器，其产生通过感测由物体反射的光源的光来检测物镜的焦点所需的信息。 当这些传感器相对于包含物镜的光轴的平面对称地布置时，防止由于偏心安装的物镜导致的装置的检测精度的降低。

公开(公告)号：US4544256A

公开(公告)日：1985-10-01

申请号：US648704

申请日：1984-09-07

申请人： Kikuo Momiyama ,  Kazuo Fujibayashi

发明人： Kikuo Momiyama ,  Kazuo Fujibayashi

IPC分类号： G03B7/099 ,  G03B7/0997 ,  G03B19/12

CPC分类号： G03B19/12 ,  G03B7/09979

摘要： In the single lens reflex camera including a photographic system having an objective lens and an image detector, and a viewfinder optically disposed of the photographic system and comprising a focusing screen having a transparent area surrounded by a light diffusing area, a prism for changing the direction of an optical path, and an eye-piece in sequence from the object, a light receiving element for light measuring is positioned away from an optical axis of the viewfinder in rear of an image forming lens for converging the light from the focusing screen to the light receiving element, and is provided with a mask for blocking the main part of an image of the transparent area which is formed by the image forming lens, thereby the proportionality between the variation of F-number of the objective lens and the amount of light measured is improved.

摘要翻译： 在包括具有物镜和图像检测器的照相系统的单镜头反光照相机中，以及光学地设置在摄影系统中的取景器，包括具有由光漫射区域包围的透明区域的聚焦屏幕，用于改变方向的棱镜 的光路和从物体开始的眼镜，用于光测量的光接收元件远离成像透镜后方的取景器的光轴，用于将来自聚焦屏的光会聚到 光接收元件，并且设置有用于阻挡由成像透镜形成的透明区域的图像的主要部分的掩模，由此物镜的F数的变化与光量之间的比例 测量得到改善。

公开(公告)号：US4474448A

公开(公告)日：1984-10-02

申请号：US504983

申请日：1983-06-16

申请人： Kikuo Momiyama

发明人： Kikuo Momiyama

IPC分类号： G02B7/34 ,  G02B9/12 ,  G02B9/16 ,  G02B13/18 ,  G03B13/18

CPC分类号： G02B9/16 ,  G02B13/18

摘要： A focus detection device for detecting the in-focus condition of an objective lens by arranging in rear of an image of an object to be photographed by said objective lens, second-image forming lenses for reforming said object image on the surfaces of photo-sensitive elements, wherein the output signals from said photo-sensitive elements are used to indicate the detection of the in-focus condition, whereby said second-image forming lenses are constructed in proper form to increase the accuracy of detection of the in-focus condition.

摘要翻译： 一种焦点检测装置，用于通过将由所述物镜照相的被摄体的图像的后方排列在后面来检测物镜的对焦状态，第二图像形成透镜，用于在光敏表面上重构所述物体图像 元件，其中来自所述光敏元件的输出信号用于指示对焦条件的检测，由此所述第二图像形成透镜以适当的形式被构造以提高对焦条件的检测精度。

公开(公告)号：US4376575A

公开(公告)日：1983-03-15

申请号：US319068

申请日：1981-11-06

申请人： Hiromi Someya ,  Kikuo Momiyama

发明人： Hiromi Someya ,  Kikuo Momiyama

IPC分类号： G03B7/00 ,  G03B13/02 ,  G03B17/20 ,  G03B19/12

CPC分类号： G03B19/12 ,  G03B17/20

摘要： The disclosed single lens reflex camera includes a shutter dial and a pentaprism as well as an eyepiece, and forms an image of a scene in the camera's field of view and a data image near the scene image through the eyepiece by passing data light from the vicinity of the pentaprism into the interior of the pentaprism. A display switchover device includes a transmission arrangement on the shutter dial for transmitting the motion of the dial, a linkage arrangement engageable with the transmission arrangement to be actuated on the basis of the selected position of the shutter dial, and a display selector between the pentaprism and the eyepiece and actuated by the linkage arrangement to control the direction of the data light to the eyepiece. According to an embodiment, the selector includes a subprism having a surface from which the data light from the pentaprism is reflected and another surface for directing the data light to the eyepiece, and a reflector that faces the two subprism surfaces for changing the reflecting position in response to the linkage arrangement.

摘要翻译： 所公开的单镜头反光相机包括快门拨盘和五棱镜以及目镜，并通过目镜的数据光通过目镜形成摄像机的视野中的场景的图像和场景图像附近的数据图像 五棱镜进入五棱镜的内部。 一种显示切换装置，包括：用于传送表盘运动的快门表盘上的传动装置;可根据所述快门盘选择的位置使所述传动装置啮合的连杆装置;以及五棱镜之间的显示选择器 和目镜，并由联动装置致动以控制到目镜的数据光的方向。 根据实施例，选择器包括具有来自五棱镜的数据光被反射的表面和用于将数据光引导到目镜的另一表面的面，以及面向两个子表面的反射器，用于改变反射位置的反射位置 响应联动安排。