公开(公告)号：US4094586A

公开(公告)日：1978-06-13

申请号：US736941

申请日：1976-11-01

申请人： Yasuhisa Sato ,  Sadahiko Tsuji ,  Katsumi Tanaka

发明人： Yasuhisa Sato ,  Sadahiko Tsuji ,  Katsumi Tanaka

IPC分类号： G02B15/167 ,  G02B15/173 ,  G02B15/18

CPC分类号： G02B15/173

摘要： A zoom lens comprising, as viewed from the side of a photographing object, a first lens group, which is positive and is provided for focusing, including a positive lens formed by joining a negative lens and a positive lens together and a positive meniscus lens; a second lens group, which is negative and is provided for variation, including a negative lens and another negative lens formed by joining a negative lens and a positive lens together; a third lens group, which is provided for compensation, including a positive lens formed by joining a negative lens and a positive lens together; a fourth lens group which is positive and is provided for image formation; and a fifth lens group which is weakly negative, the third lens group drawing a concave locus toward the object side as the second lens group moves in the direction of an optical axis. The fourth lens group is composed of two positive meniscus lenses closedly adjacent to each other and a biconcave lens disposed apart from these meniscus lenses. The fifth lens group is composed of a biconvex lens, a negative lens disposed with its concave face directed toward the object and a positive lens disposed with its convex face toward the object.

摘要翻译： 一种变焦透镜，包括：从拍摄对象侧观察为包括通过将负透镜与正透镜接合在一起形成的正透镜和正弯月形透镜的正向并被设置用于聚焦的第一透镜组; 第二透镜组，其是负的并且用于变化，包括负透镜和通过将负透镜和正透镜接合在一起而形成的另一负透镜; 第三透镜组，其被提供用于补偿，包括通过将负透镜和正透镜接合在一起而形成的正透镜; 第四透镜组是正的并被提供用于图像形成; 以及第五透镜组，其为弱负极，第三透镜​​组随着第二透镜组沿光轴方向移动而朝向物体侧绘制凹轨迹。 第四透镜组由两个彼此紧密相邻的正弯月形透镜和与这些弯液面透镜隔开的双凹透镜组成。 第五透镜组由双凸透镜，其凹面朝向物体设置的负透镜和朝向物体的凸面设置的正透镜构成。

公开(公告)号：US4240699A

公开(公告)日：1980-12-23

申请号：US902499

申请日：1978-05-03

申请人： Yasuhisa Sato ,  Sadahiko Tsuji ,  Katsumi Tanaka

发明人： Yasuhisa Sato ,  Sadahiko Tsuji ,  Katsumi Tanaka

IPC分类号： G02B15/167 ,  G02B13/24 ,  G02B15/14 ,  G02B15/173 ,  G02B15/22 ,  G02B15/18

CPC分类号： G02B13/24 ,  G02B15/173

摘要： A method of designing a telephoto type zoom lens having a convergent front member movable for focusing and capable of providing focusing down to as short an object distance as 6.5 times the longest focal length to achieve good stabilization of correction of spherical aberration on adjustment of the other aberrations within predetermined limits throughout the extended focusing range even when zooming is effected to the telephoto settings. This is accomplished by means of the formula:F(Ao, Lo) = .phi..sup.3 h.sup.4 Ao(1-.lambda..sup.4 -4a.beta.+6a.sup.2 .beta..sup.2) + 4.phi..sup.2 h.sup.2 Lo(-.beta.+3a.beta..sup.2) - .beta.(.alpha.').sup.2 + .beta..sup.2 {2.phi.(3+Po) + 3.alpha.'.alpha.'}In the case of the telephoto type zoom lens comprising, in addition to such front component, a divergent second component or variator, a convergent or divergent third component or compensator and a convergent fourth component or relay lens,-0.25.ltoreq.F(Ao, Lo).ltoreq.0.25is found as acceptable.

摘要翻译： 一种长焦型变焦镜头的设计方法，具有可聚焦的会聚前部构件，能够将目标距离设定为距离最长焦距的6.5倍，从而实现对其他调整的球面像差校正的良好稳定性 即使对长焦设置进行变焦，在整个扩展对焦范围内的像差也在预定的范围内。 这通过以下公式来实现：F（Ao，Lo）= phi 3h4Ao（1-λ4-4aβ+6a2β2）+ 4phi2h2Lo（-β+3aβ2）-β（α'）2 +β2 {2 phi（3 + Po）+3α'alpha'}在长焦型变焦透镜的情况下，除了这种前部分量之外，还包括发散的第二分量或变换器，收敛或发散的第三分量或 补偿器和收敛的第四分量或中继透镜，-0.25

公开(公告)号：US4294529A

公开(公告)日：1981-10-13

申请号：US70659

申请日：1979-08-28

申请人： Yasuhisa Sato ,  Sadahiko Tsuji ,  Kazuo Ishikawa

发明人： Yasuhisa Sato ,  Sadahiko Tsuji ,  Kazuo Ishikawa

IPC分类号： G03B17/20 ,  G03B19/12

CPC分类号： G03B17/20 ,  G03B19/12

摘要： In the camera disclosed, a volume type diffraction device having an indicium recorded therein to be reproduced later, is sealed between transparent optical members and arranged in the finder optical path so that when illuminated by a light source at an oblique angle, the indicium is reproduced, represents photographic information to be displayed in the finder.

摘要翻译： 在所公开的相机中，具有记录在其中以便再现的标记的体积型衍射装置被密封在透明光学部件之间并且被布置在取景器光路中，使得当被光源以斜角照射时，标记被再现 表示要在取景器中显示的照片信息。

公开(公告)号：US4240698A

公开(公告)日：1980-12-23

申请号：US925299

申请日：1978-07-17

申请人： Sadahiko Tsuji ,  Yasuhisa Sato

发明人： Sadahiko Tsuji ,  Yasuhisa Sato

IPC分类号： G02B15/167 ,  G02B15/17 ,  G02B15/18

CPC分类号： G02B15/17

摘要： The present invention relates to a large aperture zoom lens consisting of a positive focusing lens group, a negative variator, a negative compensator, an afocal lens group and an image forming lens in sequence from the object. The focusing lens group consists of a negative meniscus lens whose convex surface is directed toward the object, a bi-convex lens and a positive meniscus lens whose convex surface is directed toward the object, the variator of a negative meniscus lens whose convex surface is directed toward the object, the bi-concave lens and a positive lens cemented with each other, the compensator representing a negative lens of a bi-concave lens and a lens cemented with each other, the negative meniscus lens in the focusing lens group is distant from the bi-convex lens so as to form are air lens with weak divergence and the compensator is moved forwards and backwards at the same time with the movement of the variator for zooming.

摘要翻译： 本发明涉及一种大尺寸孔径变焦镜头，其由正对焦透镜组，负变换器，负补偿器，无焦透镜组和成像透镜组成。 聚焦透镜组由凸面朝向物体的负弯月透镜，凸面朝向物体的双凸透镜和正弯月透镜组成，凸面朝向物体的负弯月透镜的变倍器 朝向物体，双凹透镜和正透镜彼此粘合，补偿器表示双凹透镜的负透镜和彼此胶合的透镜，聚焦透镜组中的负弯月透镜远离 双凸透镜形成为具有弱散度的空气透镜，并且补偿器随着用于变焦的变倍器的移动而同时向前和向后移动。

公开(公告)号：US4380377A

公开(公告)日：1983-04-19

申请号：US187707

申请日：1980-09-16

申请人： Yasuhisa Sato ,  Sadahiko Tsuji

发明人： Yasuhisa Sato ,  Sadahiko Tsuji

IPC分类号： G02B15/167 ,  G02B15/173 ,  G02B9/64 ,  G02B15/18

CPC分类号： G02B15/173

摘要： A compact zoom lens comprising, from front to rear, a positive 1st group movable for focusing consisting of a positive doublet of negative and positive lenses and a positive singlet, a negative 2nd group movable for variation of magnification consisting of a negative singlet and a negative doublet of negative and positive lenses, a positive 3rd group movable for image shift compensation simultaneously with the second group consisting of a positive doublet of positive and negative lenses, and a relay lens of positive power consisting of 4th and 5th groups, the fourth consisting of at least one positive lens of forward convexity and a negative lens, and the fifth consisting of a negative meniscus lens of rearward convexity and a positive lens, the zoom lens satisfying the following conditions:0.7 N4p (3)1.76

摘要翻译： 一种紧凑型变焦透镜，包括从前到后的可移动的用于聚焦的正的第一组，由负和正透镜的正双重和正单峰组成，负的第二组可移动以用于由负单调和负的单元组成的放大率 负透镜和正透镜的双重透镜，与第二组同时具有正反转透镜的正和负透镜的第二组以及由第四组和第五组组成的正功率的中继透镜同时可移动用于图像偏移补偿的正三组，第四组包括 至少一个正透镜的正透镜和负透镜，第五个由后凸的负弯月透镜和正透镜组成，该变焦透镜满足以下条件：0.7 N4p（3）1.76

公开(公告)号：US4230398A

公开(公告)日：1980-10-28

申请号：US925860

申请日：1978-07-18

申请人： Sadahiko Tsuji ,  Yasuhisa Sato

发明人： Sadahiko Tsuji ,  Yasuhisa Sato

IPC分类号： G02B15/167 ,  G02B15/17 ,  G02B15/18

CPC分类号： G02B15/17

摘要： A zoom lens system having a range in the order of 1:9 with a relative aperture of 1:1.4, including a variable afocal front attachment and a basic objective which is designed to improve the Petzval sum with front and rear groups each consisting of three lens elements of positive, positive and negative powers in this order from the front by fulfilling the following relationships with its individual focal length Fr: ##EQU1## wherein Ff is the focal length of the front group; r4 is the radius of curvature of the rear surface of the second positive lens in the front group; r5 is the radius of curvature of the front surface of the negative lens in the front group; r8 and r10 are the radii of curvature of the rear surfaces of the first and second positive lenses in the rear group respectively; and r11 is the radius of curvature of the front surface of the negative lens in the rear group.

摘要翻译： 一种变焦镜头系统，其范围在1：9的范围内，相对孔径为1：1.4，包括一个可变的无焦正面附件和一个基本物镜，用于改善前后组的Petzval总和，每组由三个组成 通过与其各自的焦距Fr相关的以下关系，从前方按顺序排列正，负和负功率的透镜元件Fr：3Fr （2）0.05Fr <| r8 | <0.85Fr （3）（4）其中Ff是前组的焦距; r4是前组中第二正透镜的后表面的曲率半径; r5是前组中负透镜前表面的曲率半径; r8和r10分别是后组中的第一和第二正透镜的后表面的曲率半径; 并且r11是后组中的负透镜的前表面的曲率半径。

公开(公告)号：US4200380A

公开(公告)日：1980-04-29

申请号：US945906

申请日：1978-09-26

申请人： Yasuhisa Sato ,  Sadahiko Tsuji ,  Kazuo Ishikawa ,  Susumu Matsumura

发明人： Yasuhisa Sato ,  Sadahiko Tsuji ,  Kazuo Ishikawa ,  Susumu Matsumura

IPC分类号： G03B17/20 ,  G02B5/32 ,  G03B17/06 ,  G03H1/00 ,  G03B13/02

CPC分类号： G03B17/06 ,  G02B5/32

摘要： A camera according to this invention includes a diffracting means disposed in the optical path of the object image forming light for a finder. The diffracting means is illuminated by a light source also provided within the body of the camera so as to exit the diffracted light toward the object side. A person who stands on the object side as an object can ascertain whether or not he is within the area of the object field to be photographed by the camera. Also, in taking a picture of himself with a camera mounted on a tripod using a self-timer, he can, while standing on the object side, obtain information about the self-timer through a photographic lens. According to one preferred embodiment of the invention, as the diffracting means, there is used a volume type phase diffracting means to avoid any adverse effect of the diffracting means on the object image forming light in which the diffracting means is placed.

摘要翻译： 根据本发明的照相机包括设置在取景器的物体成像光的光路中的衍射装置。 衍射装置由也设置在照相机主体内的光源照射，以将衍射光朝物体侧射出。 作为对象站在物体侧的人可以确定他是否在由照相机拍摄的物场的区域内。 另外，在使用自拍定时器安装在三脚架上的相机拍摄自己的照片时，他可以在物体侧站立时通过摄影镜头获取有关自拍的信息。 根据本发明的一个优选实施例，作为衍射装置，使用体积型相位衍射装置，以避免衍射装置对放射衍射装置的物体成像光的任何不利影响。

公开(公告)号：US4200358A

公开(公告)日：1980-04-29

申请号：US919770

申请日：1978-06-28

申请人： Sadahiko Tsuji ,  Yasuhisa Sato

发明人： Sadahiko Tsuji ,  Yasuhisa Sato

IPC分类号： G02B15/167 ,  G02B15/17 ,  G02B15/18

CPC分类号： G02B15/17

摘要： A zoom lens having a focal length range of about 1:9.5 with a relative aperture of 1:1.4 and whose minimum focal length is made shorter than has heretofore been possible to correspond to an image angle of 56.degree. or more, while good stability of aberration correction is maintained throughout the extended zooming range at the increased relative aperture with limitation of the overall dimensions to a minimum. The lens is suitable for cine cameras of small size and includes a positive first group of four lens elements movable for focusing, negative second and negative third groups axially movable to effect zooming, a positive fourth group acting in afocal manner, and a positive fifth group having an image forming function, the first, fourth and fifth groups being stationary during zooming.

摘要翻译： 焦距为约1:9.5的变焦透镜，相对孔径为1：1.4，其最小焦距缩短到迄今为止可以对应于56°以上的图像角度，同时良好的稳定性 在增大的相对孔径的整个扩展变焦范围内，维持整体尺寸的限制的像差校正最小。 该镜头适用于小尺寸的电影照相机，包括一个可以聚焦的四个透镜元件的正的第一组，可以轴向移动以实现变焦的负第二和负第三组，正焦点的第四组和第五组 具有图像形成功能，第一，第四和第五组在变焦期间是静止的。

公开(公告)号：US5040881A

公开(公告)日：1991-08-20

申请号：US346512

申请日：1989-05-02

申请人： Sadahiko Tsuji

发明人： Sadahiko Tsuji

IPC分类号： G02B15/167

CPC分类号： G02B15/167

摘要： A zoom lens comprising a front lens group including a lens unit for decentering relative to an optical axis to stabilize an image at the focal plane and a rear lens group including lens units movable along the optical axis for zooming on the image side of the front lens group.

摘要翻译： 一种变焦透镜，包括：前透镜组，其包括用于相对于光轴偏心以使焦平面处的图像稳定的透镜单元;以及包括可沿光轴移动的透镜单元的后透镜组，用于变焦在前透镜的像侧 组。

公开(公告)号：US4929068A

公开(公告)日：1990-05-29

申请号：US411203

申请日：1989-09-21

申请人： Sadahiko Tsuji

发明人： Sadahiko Tsuji

IPC分类号： G02B15/10

CPC分类号： G02B15/10

摘要： A front conversion lens is disclosed comprising, from front to rear, a first lens unit made of glass material, a second lens unit made of plastic material, and a third lens unit made of glass material.

摘要翻译： 公开了一种前转换透镜，包括从前到后的由玻璃材料制成的第一透镜单元，由塑料材料制成的第二透镜单元和由玻璃材料制成的第三透镜单元。