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1. 发明授权

US4854681A Compact zoom lens 失效
标题翻译：紧凑型变焦镜头
公开(公告)号：US4854681A
公开(公告)日：1989-08-08
申请号：US931537
申请日：1986-11-14
申请人： Masatake Kato , Sadahiko Tsuji , Muneharu Sugiura , Kazuo Tanaka
发明人： Masatake Kato , Sadahiko Tsuji , Muneharu Sugiura , Kazuo Tanaka
IPC分类号： G02B15/173
CPC分类号： G02B15/173
摘要： A compact zoom lens comprising, from front to rear, a first lens unit of positive power for focusing, a second lens unit of negative power axially movable in one direction when zooming from one end of a range of image magnification to the other, a third lens unit of positive power axially movable in a path convex toward the rear to maintain the constant position of an image surface which shifts with zooming, and a fourth lens unit of positive power for forming an image which remains stationary during zooming, wherein a fixed diaphragm is arranged in a space between the second and third lens units.
摘要翻译：一种紧凑型变焦透镜，包括从前到后具有用于聚焦的正光焦度的第一透镜单元，当从一定范围的图像放大倍数的一端变焦到另一方向时可以沿一个方向轴向移动的负光焦度的第二透镜单元，具有正向功率的透镜单元，其在朝向后方凸出的路径中可轴向移动，以保持图像表面随着变焦而移动的恒定位置，以及用于形成在变焦期间保持静止的图像的正电力的第四透镜单元，其中，布置在第二和第三透镜单元之间的空间中。

2. 发明授权

US4763998A Compact zoom lens 失效
标题翻译：紧凑型变焦镜头
公开(公告)号：US4763998A
公开(公告)日：1988-08-16
申请号：US877101
申请日：1986-06-23
申请人： Sadahiko Tsuji , Muneharu Sugiura , Kazuo Tanaka , Masatake Kato
发明人： Sadahiko Tsuji , Muneharu Sugiura , Kazuo Tanaka , Masatake Kato
IPC分类号： G02B15/173 , G02B15/14 , G02B9/64
CPC分类号： G02B15/173
摘要： A zoom lens comprising a first lens unit of positive refractive power for focusing, a second unit of negative refractive power movable for zooming in a mono-direction throughout, a third unit of positive refractive power movable for zooming in the opposite mono-direction to that of movement of the second unit, and a fourth unit of positive refractive power having an image forming function which is held stationary during zooming, with a diaphragm being arranged in between the second and third units to be stationary.
摘要翻译：一种变焦透镜，包括用于聚焦的正折光力的第一透镜单元，可折叠单向放大的可折叠的第二单位的负折射光焦度的第三单位的正折光力，可以将相对的单向放大到与之相反的单向第二单元的运动以及具有在变焦期间保持静止的图像形成功能的正屈光力的第四单元，其中隔膜布置在待固定的第二和第三单元之间。

3. 发明授权

US4525036A Zoom lens 失效
标题翻译：变焦镜头
公开(公告)号：US4525036A
公开(公告)日：1985-06-25
申请号：US470623
申请日：1983-02-28
申请人： Kazuo Fujibayashi , Muneharu Sugiura , Sadahiko Tsuji
发明人： Kazuo Fujibayashi , Muneharu Sugiura , Sadahiko Tsuji
IPC分类号： G02B15/17 , G02B15/00
CPC分类号： G02B15/17
摘要： A zoom lens having, from front to rear, a 1st lens group having a positive refractive power for focusing, a 2nd lens group of negative refractive power having a magnification changing function, a 3rd lens group having a negative refractive power for compensating for the image shift resulting from the change of the magnification, and a 4th lens group of positive refractive power having an image forming function, the aforesaid 4th lens group having two lens groups with the front or 4-1st lens group and the rear or 4-2nd lens group. The form and construction and arrangement of the lens elements of the aforesaid 4-1st and the aforesaid 4-2nd lens groups are properly set forth so as to achieve good correction of aberrations and, at the same time, limiting the bulk and size of the entire system to a minimum.
摘要翻译：具有从前到后具有用于聚焦的正折光力的第一透镜组的变焦透镜，具有倍率变化功能的负折射力的第二透镜组，具有用于补偿图像的负折光力的第三透镜组具有图像形成功能的具有正折射力的第4透镜组，具有前透镜组或第4-1透镜组的两个透镜组的第四透镜组以及后透镜或第四透镜组组。上述第4-1和第4-2透镜组的透镜元件的形状和结构和布置被适当地阐述，以便实现良好的像差校正，并且同时限制了大小和尺寸整个系统降至最低。

4. 发明授权

US4618219A Zoom lens 失效
标题翻译：变焦镜头
公开(公告)号：US4618219A
公开(公告)日：1986-10-21
申请号：US581953
申请日：1984-02-21
申请人： Muneharu Sugiura , Kazuo Fujibayashi , Sadahiko Tsuji
发明人： Muneharu Sugiura , Kazuo Fujibayashi , Sadahiko Tsuji
IPC分类号： G02B15/167 , G02B15/17 , G02B15/14
CPC分类号： G02B15/17
摘要： The disclosed zoom lens includes, from front to rear, a first lens component of positive power for focusing the lens, a second lens component of negative power for varying magnification power, a third lens component of negative power for compensating for the image shift resulting from the change of magnification power, and a fourth lens component of positive power for forming an image. The second lens component includes, from front to rear, a negative meniscus-shaped lens having a strong refracting rear surface, and another negative mensicus-shaped lens having a strong refracting front surface and a cemented surface of forward convexity. A front group of the fourth component includes, from front to rear, a bi-convex lens having a rear surface of strong curvature, another bi-convex lens having a front surface of strong curvature, a lens of negative power having a front surface of strong curvature and a lens of positive power having a front surface of strong curvature. The second group of the fourth component includes, from front to rear, a bi-concave lens having a rear surface of strong curvature, a bi-convex lens having a rear surface of strong curvature, and another bi-convex lens having a front surface of strong curvature. This permits a compact lens with good correction throughout the zooming range.
摘要翻译：所公开的变焦镜头包括从前到后的用于聚焦透镜的正功率的第一透镜部件，用于变化放大倍率的负功率的第二透镜部件，负功率的第三透镜部件，用于补偿由放大倍率的变化，以及用于形成图像的正电力的第四透镜分量。第二透镜部件包括从前到后的具有强折射后表面的负弯液面透镜，以及具有强折射前表面和具有向前凸起的胶合表面的另一阴性主棱镜形透镜。第四组件的前组包括从前到后的具有强曲率后表面的双凸透镜，具有强曲率前表面的另一双凸透镜，负功率透镜具有前表面的前表面强曲率和具有强曲率前表面的正功率透镜。第四组件的第二组件包括从前到后的具有强曲率后表面的双凹透镜，具有强曲率后表面的双凸透镜，以及具有前表面的另一双凸透镜强曲率。这允许在整个变焦范围内具有良好校正的紧凑型透镜。

5. 发明授权

US4712883A Rear focus zoom lens 失效
标题翻译：后焦距变焦镜头
公开(公告)号：US4712883A
公开(公告)日：1987-12-15
申请号：US571481
申请日：1984-01-17
申请人： Masatake Kato , Sadahiko Tsuji , Toshiaki Asano
发明人： Masatake Kato , Sadahiko Tsuji , Toshiaki Asano
IPC分类号： G02B15/20 , G02B15/173 , G02B15/22 , G02B15/14 , G02B13/18
CPC分类号： G02B15/173
摘要： The disclosed zoom lens includes, from front to rear, a magnification-power variable lens assembly which serves for zooming and an image forming lens assembly which is stationary during zooming. The image forming assembly has a lens component B of negative refractive power which is preceded by at least one lens component A movable for focusing and which is followed by at least one lens component C movable for focusing. This structure makes achievement of a compact form and good stability in aberration correction possible throughout the entire focusing range.
摘要翻译：所公开的变焦镜头包括从前到后的用于变焦的放大倍率可变透镜组件和在变焦期间静止的成像透镜组件。图像形成组件具有负折射力的透镜部件B，其前面具有可移动用于聚焦的至少一个透镜部件A，并且后面是可移动以进行聚焦的至少一个透镜部件C. 这种结构使得在整个聚焦范围内实现了像差校正的紧凑形式和良好的稳定性。

6. 发明授权

US4687303A Zoom lens system 失效
标题翻译：变焦镜头系统
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。

7. 发明授权

US4653874A Zoom lens 失效
标题翻译：变焦镜头
公开(公告)号：US4653874A
公开(公告)日：1987-03-31
申请号：US879825
申请日：1986-06-26
申请人： Sadatoshi Takahashi , Toshiaki Asano , Sadahiko Tsuji , Kazuo Fujibayashi , Masatake Kato
发明人： Sadatoshi Takahashi , Toshiaki Asano , Sadahiko Tsuji , Kazuo Fujibayashi , Masatake Kato
IPC分类号： G02B13/18 , G02B15/173 , G02B15/20 , G02B15/16
CPC分类号： G02B15/173
摘要： A zoom lens having at least three components, or, from front to rear, a first component of positive power, a second component of negative power and a third component with the air separations between the successive two of said three components being varied to effect zooming, whereby said first component is constructed with, from front to rear, a bi-convex first lens, a second lens of negative power and a third lens of positive power.
摘要翻译：具有至少三个分量的变焦透镜，或从前到后具有正功率的第一分量，负功率的第二分量和具有所述三个分量中的连续两个之间的空气分离的第三分量变化以实现变焦由此所述第一部件从前到后构造为双凸第一透镜，负功率的第二透镜和正光焦度的第三透镜。

8. 发明授权

US4318593A Zoom lens assembly with two movable focusing lens groups 失效
标题翻译：变焦镜头组合有两个可移动聚焦镜头组
公开(公告)号：US4318593A
公开(公告)日：1982-03-09
申请号：US92843
申请日：1979-11-09
申请人： Sadahiko Tsuji , Noritsugu Hirata , Kazuo Tanaka
发明人： Sadahiko Tsuji , Noritsugu Hirata , Kazuo Tanaka
IPC分类号： G02B7/08 , G02B7/10 , G02B15/167 , G02B15/22
CPC分类号： G02B7/10
摘要： In the disclosed zoom lens assembly containing focusing optics, a variable magnification lens group and an image forming lens group, the focusing optics are divided into a first movable focusing lens group and a second movable focusing lens group, while a control device operatively engaged with a focusing mechanism moves the first and the second movable lens groups a predetermined amount in order to compensate for changes in the picture angle during the focusing operation.
摘要翻译：在所公开的包含聚焦光学元件的变焦透镜组件，可变放大透镜组和成像透镜组中，聚焦光学器件被分成第一可移动聚焦透镜组和第二可移动聚焦透镜组，而控制装置与聚焦机构使第一和第二可移动透镜组移动预定量，以补偿聚焦操作期间图像角度的变化。

9. 发明授权

US4336983A Photographic objective stabilized against change of angular field during focusing 失效
标题翻译：在聚焦期间稳定的角度场的变化的照相物镜
公开(公告)号：US4336983A
公开(公告)日：1982-06-29
申请号：US105089
申请日：1979-12-19
申请人： Kazuo Tanaka , Sadahiko Tsuji
发明人： Kazuo Tanaka , Sadahiko Tsuji
IPC分类号： G02B15/177 , G02B15/18
CPC分类号： G02B15/177
摘要： A photographic objective having a front lens group movable for focusing and a stationary rear lens group focusing whose back focal point is made coincident with the point of position of the exit pupil of the entire lens system to prevent the change in angular field of view in the object space from occurring during focusing.
摘要翻译：具有可移动用于聚焦的前透镜组的摄影目标和使后焦点的后焦点与整个透镜系统的出射光瞳的位置一致的防止视场中的角度视场的变化的静止后透镜组聚焦聚焦时发生物体空间。

10. 发明授权

US4544250A Optical system for camera with a viewfinder 失效
标题翻译：带取景器的相机的光学系统
公开(公告)号：US4544250A
公开(公告)日：1985-10-01
申请号：US613590
申请日：1984-05-23
申请人： Kazuo Tanaka , Sadahiko Tsuji
发明人： Kazuo Tanaka , Sadahiko Tsuji
IPC分类号： G02B13/00 , G03B19/12 , G03B13/08 , G03B13/12
CPC分类号： G02B13/00 , G03B19/12
摘要： A photographic optical system including a beam splitter for a finder is provided with a releasably attached extender in between the beam splitter and a focal plane, while the finder is provided with means for changing the magnification of an image thereof as the extender is inserted into, or retracted from, axial alignment to the optical system. The camera has, despite the addition of the magnification power changing capability along with the finder image magnification correcting capability, to be made small in the size and light in the weight.
摘要翻译：包括用于取景器的分束器的摄影光学系统在分束器和焦平面之间设置有可释放地附接的扩展器，而取景器设置有用于在扩展器插入时改变其图像的放大倍数的装置，或从轴向对准缩回到光学系统。尽管增加了放大倍率变化能力以及取景器图像放大校正能力，相机具有小的重量和尺寸。

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