公开(公告)号：US4247171A

公开(公告)日：1981-01-27

申请号：US891024

申请日：1978-03-28

申请人： Sadahiko Tsuji

发明人： Sadahiko Tsuji

IPC分类号： G02B9/62

CPC分类号： G02B9/62

摘要： The present invention relates to a Gauss type lens, comprising a first positive meniscus lens whose convex surface is directed to the object, a second positive meniscus lens whose convex surface is directed to the object, a third negative meniscus lens whose convex surface is directed to the object, a fourth negative meniscus lens whose concave surface is directed to the object, consisting of a negative and a positive lens cemented on each other, the fifth positive meniscus lens whose concave surface is directed to the object and the sixth positive lens and satisfying the following conditions.(1) 0.29f

摘要翻译： 高斯型透镜本发明涉及一种高斯型透镜，其包括凸面朝向物体的第一正弯月形透镜，凸表面朝向物体的第二正凹凸透镜，凸面指向第三负弯月形透镜 该物体，其凹面指向物体的第四负凹凸透镜，由彼此胶合的负透镜和正透镜组成，第五正弯月透镜的凹面指向物体和第六正透镜，并满足 以下条件。 （1）0.29f

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：US3970367A

公开(公告)日：1976-07-20

申请号：US543276

申请日：1975-01-23

申请人： Sadahiko Tsuji

发明人： Sadahiko Tsuji

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

CPC分类号： G02B15/173

摘要： A zoom lens system comprising five lens groups of which the first, third and fifth groups are convergent, the second group is divergent, and the fourth group is a divergent doublet consisting of convergent and divergent elements cemented together, the cemented contact surface being concave toward the front, in which the second group is axially movable to effect magnification variation, and the third group is axially movable forward and then rearward when zooming the second group from an extreme focal length range to the other, said zoom lens system being characterized by the following relationships in combination:0.6f.sub.w

摘要翻译： 一种变焦透镜系统，包括五个透镜组，第一组，第三组和第五组会聚，第二组是发散的，第四组是由会聚和发散元件粘合在一起的发散双面组合，胶合接触表面朝向 其中第二组可轴向移动以实现放大变化，并且当将第二组从极焦距范围变焦到另一组时，第三组可以向前或向后轴向移动，所述变焦透镜系统的特征在于， 以下关系组合：

公开(公告)号：US5461500A

公开(公告)日：1995-10-24

申请号：US293738

申请日：1994-08-22

申请人： Sadahiko Tsuji ,  Hidetoshi Suzuki ,  Hideaki Mitsutake ,  Katsumi Kurematsu ,  Noritaka Mochizuki ,  Nobuo Minoura ,  Shigeru Kawasaki ,  Kazumi Kimura ,  Junko Shingaki

发明人： Sadahiko Tsuji ,  Hidetoshi Suzuki ,  Hideaki Mitsutake ,  Katsumi Kurematsu ,  Noritaka Mochizuki ,  Nobuo Minoura ,  Shigeru Kawasaki ,  Kazumi Kimura ,  Junko Shingaki

IPC分类号： G02B27/28 ,  G02B5/30 ,  G02F1/1335

CPC分类号： G02B27/283

摘要： This specification discloses a polarization converting apparatus having means emitting non-polarized light, and polarizing means having a light incidence surface and a light emergence surface, the polarizing means receiving the non-polarized light by the light incidence surface and causing polarized light to emerge from the light emergence surface, the size and shape of the light incidence surface being similar to the size and cross-sectional shape of the non-polarized light. The specification also discloses an optical instrument having such apparatus.

摘要翻译： 该说明书公开了一种具有发射非偏振光的装置的偏振转换装置和具有光入射表面和光出射表面的偏振装置，该偏振装置由光入射表面接收非偏振光，并使偏振光从 光出射表面，光入射表面的尺寸和形状类似于非偏振光的尺寸和横截面形状。 本说明书还公开了具有这种装置的光学仪器。

公开(公告)号：US4974009A

公开(公告)日：1990-11-27

申请号：US425349

申请日：1989-10-20

申请人： Sadahiko Tsuji

发明人： Sadahiko Tsuji

IPC分类号： G03B13/36 ,  G02B7/32 ,  G03B3/00

CPC分类号： G02B7/32

摘要： A focus detecting device and a photographic apparatus provided with such a device has an apparatus for setting optic axes thereof with a base length therebetween, and for photoelectrically detecting a focus state thereof, at least one of the optic axes being bent, or reflected, by a fixed reflecting surface, and a focus detection component disposed along the bent optic axis and movable, during a focus detection operation, in a direction intersecting the bent axis.

摘要翻译： 具有这种装置的焦点检测装置和摄影装置具有用于设置其光轴的基准长度的装置，并且用于光电检测其聚焦状态，至少一个光轴被弯曲或反射，由 固定的反射面，以及焦点检测部件，其沿着弯曲的光轴设置，并且在聚焦检测操作期间沿与弯曲轴线交叉的方向可移动。

公开(公告)号：US4963005A

公开(公告)日：1990-10-16

申请号：US44776

申请日：1987-05-01

申请人： Sadahiko Tsuji

发明人： Sadahiko Tsuji

IPC分类号： G02B13/04 ,  G02B15/16 ,  G02B15/177

CPC分类号： G02B15/177

摘要： A zoom lens comprising, from front to rear, a first lens unit of negative power and a second lens unit of positive power, both lens being axially moved to effect zooming, in which a diaphragm is arranged between the first and second lens units to remain stationary during zooming.

摘要翻译： 一种变焦透镜，包括从前到后具有负功率的第一透镜单元和正功率的第二透镜单元，两个透镜被轴向移动以实现变焦，其中隔膜布置在第一和第二透镜单元之间以保持 在变焦期间静止。

公开(公告)号：US4797700A

公开(公告)日：1989-01-10

申请号：US878605

申请日：1986-06-26

申请人： Sadahiko Tsuji ,  Hiroyoshi Inaba

发明人： Sadahiko Tsuji ,  Hiroyoshi Inaba

IPC分类号： G03B9/02 ,  G03B9/42

CPC分类号： G03B9/02 ,  G03B9/42

摘要： A diaphragm device including a pair of diaphragm blades movable in opposite directions relatively to each other along a moving line passing through an optical axis of an optical system characterized in that each of the diaphragm blades is provided with an opening of a shape consisting of combination of an arc having a center of curvature located on said moving line and at least one arc having a radius smaller than the above-mentioned arc and having a center of curvature located on said moving line or on a line at right angle to said moving line.

摘要翻译： 一种隔膜装置，包括一对光阑叶片，其沿着相对于彼此相对的方向沿着通过光学系统的光轴的移动线路可移动，其特征在于，每个所述光阑叶片设置有由以下组成的形状的开口： 具有位于所述移动线上的曲率中心的圆弧和至少一个具有小于上述弧的半径的圆弧，并且具有位于所述移动线上的曲率中心或与所述移动线成直角的线。

公开(公告)号：US4749266A

公开(公告)日：1988-06-07

申请号：US552486

申请日：1983-11-16

申请人： Sadatoshi Takahashi ,  Sadahiko Tsuji

发明人： Sadatoshi Takahashi ,  Sadahiko Tsuji

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

CPC分类号： G02B15/173

摘要： A zoom lens including, from front to rear, a first lens group of positive power, a second lens group of negative power, a third lens group of positive power, a fourth lens group of negative power, and a fifth lens group of positive power. For zooming from the shortest focal length to the longest focal length, the first lens group is moved forward, the air space between the first and second lens groups is increased, the air space between the second and the third lens groups is decreased, the air space between the third and fourth lens groups is increased, and the air space between the fourth and fifth lens groups is decreased. The fifth lens group remains stationary during zooming. This construction and arrangement results in a zoom lens of compact form with a large aperture while still permitting good stability of aberration correction throughout a greatly extended zooming range.

摘要翻译： 一种变焦透镜，包括从前到后具有正功率的第一透镜组，负功率的第二透镜组，正光焦度的第三透镜组，负功率的第四透镜组和正功率的第五透镜组 。 为了从最短焦距变焦到最长焦距，第一透镜组向前移动，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空间减小，空气 第三透镜组和第四透镜组之间的空间增加，并且第四和第五透镜组之间的空气空间减小。 第五个透镜组在变焦期间保持静止。 这种结构和布置导致具有大孔径的紧凑形式的变焦镜头，同时仍然允许在大大延长的变焦范围内的像差校正的良好稳定性。

公开(公告)号：US4687303A

公开(公告)日：1987-08-18

申请号：US628447

申请日：1984-07-06

申请人： Sadatoshi Takahashi ,  Masatake Kato ,  Sadahiko Tsuji

发明人： Sadatoshi Takahashi ,  Masatake Kato ,  Sadahiko Tsuji

IPC分类号： G02B15/20 ,  G02B15/177 ,  G02B15/16

CPC分类号： G02B15/177

摘要： A zoom lens system having, from front to rear, a positive first component, a negative second component, a positive third component and a fourth component, in which to effect zooming, the first, second and third components are moved axially in A relation such that the movements of the first and second components are non-linear with respect to that of the third component, and that when in the telephoto end, the first and third components lie more toward the front and the second component lies more toward the rear than when in the wide angle end. By specifying the relation in which the first, second and third components move as zooming nears the wide angle end, a valuable decrease in the diameter of the front lens members is achieved to provide a compact zoom lens system.

摘要翻译： 一种变焦透镜系统，其从前到后具有正的第一分量，负的第二分量，正的第三分量和第四分量，其中，为了进行变焦，第一，第二和第三分量以如下关系如下 第一和第二部件的运动相对于第三部件的运动是非线性的，并且当在长焦端时，第一和第三部件更靠近前部，而第二部件更靠近后部， 当在广角端。 通过指定第一，第二和第三分量随着广角端附近的变焦而移动的关系，实现了前透镜构件的直径的有价值的降低以提供紧凑的变焦透镜系统。