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1. 发明授权

US4789227A Zoom lens 失效
标题翻译：变焦镜头
公开(公告)号：US4789227A
公开(公告)日：1988-12-06
申请号：US107876
申请日：1987-10-08
申请人： Tsunefumi Tanaka , Keiji Ikemori , Masatake Kato , Kazuo Tanaka
发明人： Tsunefumi Tanaka , Keiji Ikemori , Masatake Kato , Kazuo Tanaka
IPC分类号： G02B15/173 , G02B15/00
CPC分类号： G02B15/173
摘要： A zoom lens which performs focusing by using part of a movable lens unit. In zooming, a lens unit V for changing the focal length of the entire system and another lens unit C for maintaining the constant position of an image plane move in certain relation to each other. For all objects in the focusing range, a part of either the aforesaid lens unit V or the aforesaid lens unit C is made to move to effect focusing at any station in the entire zooming range, thereby the zoom lens can be constructed in compact form.
摘要翻译：通过使用可移动透镜单元的一部分进行聚焦的变焦透镜。在变焦中，用于改变整个系统的焦距的透镜单元V和用于保持图像平面的恒定位置的另一透镜单元C以一定的关系移动。对于聚焦范围中的所有物体，使得上述透镜单元V或上述透镜单元C的一部分在整个变焦范围内移动以在任何位置移动以实现聚焦，从而可以以紧凑的形式构造变焦镜头。

2. 发明授权

US4702567A Zoom lens 失效
标题翻译：变焦镜头
公开(公告)号：US4702567A
公开(公告)日：1987-10-27
申请号：US17025
申请日：1987-02-18
申请人： Masatake Kato , Keiji Ikemori , Tsunefumi Tanaka , Kazuo Tanaka
发明人： Masatake Kato , Keiji Ikemori , Tsunefumi Tanaka , Kazuo Tanaka
IPC分类号： G02B15/173 , G02B15/18
CPC分类号： G02B15/173
摘要： A zoom lens having a component V which has at least one group of lens elements axially movable mainly for changing image magnification, a component C which has at least one group of lens elements axially movable for compensating for the image shift resulting from the change of image magnification to maintain the constant position of the image plane, and a compound component F positioned on the image side of either, or both, of said component V and said component C to be movable with zooming, and having a plurality of lens groups contributing to a small overall refractive power, whereby the focusing provision is made in at least one of the groups in said compound component F.
摘要翻译：具有分量V的变焦透镜具有至少一组主要用于改变图像放大率的可轴向移动的透镜元件组; C组件，其具有至少一组轴向可移动的透镜元件，用于补偿由图像变化引起的图像偏移以保持图像平面的恒定位置，以及位于所述部件V和所述部件C中的任意一方或两者的图像侧上的复合部件F可以变焦地移动，并且具有多个透镜组，小的总屈光力，由此在所述化合物组分F中的至少一个基团中进行聚焦。

3. 发明授权

US4687302A Zoom lens 失效
标题翻译：变焦镜头
公开(公告)号：US4687302A
公开(公告)日：1987-08-18
申请号：US903901
申请日：1986-09-04
申请人： Keiji Ikemori , Tsunefumi Tanaka , Masatake Kato
发明人： Keiji Ikemori , Tsunefumi Tanaka , Masatake Kato
IPC分类号： G02B15/177 , G02B15/14
CPC分类号： G02B15/177
摘要： A zoom lens comprising, from front to rear, a negative first component, a positive second component, a positive or negative third component and a positive fourth component. To effect zooming, the first, second and third components are made to axially move in differential relation to each other. This makes it possible to achieve a minimization of the bulk and size of the entire system and a valuable increase in the angle of view field for the wide angle setting.
摘要翻译：一种变焦透镜，包括从前到后的负的第一分量，正的第二分量，正或负的第三分量和正的第四分量。为了实现变焦，使第一，第二和第三分量彼此以差分关系轴向移动。这使得可以实现整个系统的体积和尺寸的最小化以及广角设置的视野范围的有价值的增加。

4. 发明授权

US4695133A High range zoom lens 失效
标题翻译：高范围变焦镜头
公开(公告)号：US4695133A
公开(公告)日：1987-09-22
申请号：US717376
申请日：1985-03-29
申请人： Nozomu Kitagishi , Sadatoshi Takahashi , Keiji Ikemori , Kikuo Momiyama , Tsunefumi Tanaka
发明人： Nozomu Kitagishi , Sadatoshi Takahashi , Keiji Ikemori , Kikuo Momiyama , Tsunefumi Tanaka
IPC分类号： G02B15/20 , G02B15/173 , G02B15/16
CPC分类号： G02B15/173
摘要： The disclosed zoom lens includes, from front to rear, a first lens unit of positive power, a second lens unit of negative power, a third lens unit of positive power, and a fourth lens unit. When zooming, the first and third lens units are axially moved independently of each other, the second lens unit remains stationary, and the fourth lens unit is axially moved but changes the direction of advance at an intermediate point in the zooming range.
摘要翻译：所公开的变焦镜头包括从前到后的正功率的第一透镜单元，负功率的第二透镜单元，正光焦度的第三透镜单元和第四透镜单元。当变焦时，第一透镜单元和第三透镜单元彼此独立地轴向移动，第二透镜单元保持静止，并且第四透镜单元轴向移动，但是在变焦范围的中间点改变前进方向。

5. 发明授权

US4711534A Zoom lens able to obtain focal lengths beyond the zooming range 失效
标题翻译：变焦镜头能够获得超出变焦范围的焦距
公开(公告)号：US4711534A
公开(公告)日：1987-12-08
申请号：US705567
申请日：1985-02-26
申请人： Takashi Matsushita , Sadatoshi Takahashi , Keiji Ikemori , Nozomu Kitagishi , Tsunefumi Tanaka , Kikuo Momiyama
发明人： Takashi Matsushita , Sadatoshi Takahashi , Keiji Ikemori , Nozomu Kitagishi , Tsunefumi Tanaka , Kikuo Momiyama
IPC分类号： G02B15/16 , G02B15/177 , G02B7/04
CPC分类号： G02B15/177
摘要： A zoom lens including, from front to rear, a first lens unit of negative power and a second lens unit of positive power with the separation therebetween being varied to effect zooming. The first lens unit is moved to effect focusing, wherein with the first lens unit focusing a finite object distance on the wide angle side, the second lens unit moves rearward to obtain focal lengths beyond the zooming range.
摘要翻译：包括从前到后的具有负功率的第一透镜单元和正功率的第二透镜单元与其间的分离的变焦透镜是变化的，以实现变焦。移动第一透镜单元以实现聚焦，其中，当第一透镜单元在广角侧聚焦有限物体距离时，第二透镜单元向后移动以获得超出变焦范围的焦距。

6. 发明授权

US4639096A High range zoom lens 失效
标题翻译：高范围变焦镜头
公开(公告)号：US4639096A
公开(公告)日：1987-01-27
申请号：US657762
申请日：1984-10-04
申请人： Nozomu Kitagishi , Kikuo Momiyama , Keiji Ikemori , Sadatoshi Takahashi , Tsunefumi Tanaka
发明人： Nozomu Kitagishi , Kikuo Momiyama , Keiji Ikemori , Sadatoshi Takahashi , Tsunefumi Tanaka
IPC分类号： G02B15/20 , G02B15/173 , G02B15/14
CPC分类号： G02B15/173
摘要： The disclosed zoom lens is composed of four lens groups. Counting from the front, the first lens group has a positive power, the second a negative power, the third a positive power and the fourth a positive or a negative power. At least the first, third and fourth lens groups are movable for zooming. The zoom lens satisfies the following conditions:-3
摘要翻译：所公开的变焦镜头由四个透镜组组成。从前面算起，第一透镜组具有正功率，第二透镜组为负功率，第三为正功率，第四为正功率或负功率。至少第一，第三和第四透镜组可移动以进行变焦。变焦透镜满足以下条件：-3 <β3w <-0.8 -0.35

7. 发明授权

US4629294A Zoom lens 失效
标题翻译：变焦镜头
公开(公告)号：US4629294A
公开(公告)日：1986-12-16
申请号：US622713
申请日：1984-06-20
申请人： Tsunefumi Tanaka , Sadatoshi Takahashi , Nozomu Kitagishi , Keiji Ikemori , Kikuo Momiyama
发明人： Tsunefumi Tanaka , Sadatoshi Takahashi , Nozomu Kitagishi , Keiji Ikemori , Kikuo Momiyama
IPC分类号： G02B15/20 , G02B15/173 , G02B15/14
CPC分类号： G02B15/173
摘要： A zoom lens includes, from front to rear, a positive first component, a negative second component, a positive third component and a positive or negative fourth component. The first, third and fourth components are movable to vary the focal length of the entire system. In the wide angle position, the image modification of the third component contributes to the ratio of the focal length of the third component to the focal length of the fourth component, and the ratio of that fraction of the zoom ration of the entire system which the second component assumes to the zoom ratio of the entire system, satisfies specific conditions such that minimization of the bulk and size of the zoom lens and a stabilized correction of aberrations are achieved.
摘要翻译：变焦透镜从前到后包括正的第一分量，负的第二分量，正的第三分量和正或负的第四分量。第一，第三和第四组件可移动以改变整个系统的焦距。在广角位置，第三分量的图像修正有助于第三分量的焦距与第四分量的焦距的比率，以及整个系统的变焦比率的比率第二分量假定为整个系统的变焦比，满足特定条件，使得实现变焦透镜的体积和尺寸的最小化以及稳定的像差校正。

8. 发明授权

US4666257A Compact zoom lens 失效
标题翻译：紧凑型变焦镜头
公开(公告)号：US4666257A
公开(公告)日：1987-05-19
申请号：US705565
申请日：1985-02-26
申请人： Tsunefumi Tanaka , Keiji Ikemori , Nozomu Kitagishi , Sadatoshi Takahashi , Kikuo Momiyama
发明人： Tsunefumi Tanaka , Keiji Ikemori , Nozomu Kitagishi , Sadatoshi Takahashi , Kikuo Momiyama
IPC分类号： G02B13/18 , G02B15/173 , G02B15/20 , G02B9/64 , G02B15/14
CPC分类号： G02B15/173
摘要： A compact zoom lens including, from front to rear, a first lens unit of positive power, a second lens unit of negative power, a third lens unit of positive power and, if desired, further a fourth lens unit, with the separations between the first and second units, between the second and third units and between the third and fourth units being made variable to vary the focal length of the entire system, wherein as the focal length is varied from the shortest to the longest value, the first and third units move axially forward, and the third unit is provided with a positive lens having an aspherical surface.
摘要翻译：一种紧凑型变焦透镜，包括从前到后具有正功率的第一透镜单元，负功率的第二透镜单元，正光焦度的第三透镜单元，以及如果需要的话，还具有第四透镜单元，在第二单元和第三单元之间以及第三单元和第四单元之间的第一单元和第二单元是可变的，以改变整个系统的焦距，其中当焦距从最短到最长值变化时，第一和第三单元单元轴向向前移动，并且第三单元设置有具有非球面的正透镜。

9. 发明授权

US4586793A Zoom lens 失效
标题翻译：变焦镜头
公开(公告)号：US4586793A
公开(公告)日：1986-05-06
申请号：US478890
申请日：1983-03-25
申请人： Tsunefumi Tanaka , Keiji Ikemori
发明人： Tsunefumi Tanaka , Keiji Ikemori
IPC分类号： G02B15/20 , G02B15/177 , G02B15/22 , G02B9/64
CPC分类号： G02B15/177
摘要： A zoom lens having a lst lens component of negative power counting from front, and a 2nd lens component of positive power, with an air separation therebetween being varied to effect zooming, wherein said 2nd component is divided into two components one of which is made movable for focusing, thus minimizing the bulk and size of the entire system, while still achieving good correction of aberrations.
摘要翻译：具有从正面计数的负功率的第一透镜分量和正功率的第二透镜分量的变焦透镜被变化以实现变焦，其中所述第二分量被分成两个分量，其中一个是可移动的用于聚焦，从而使整个系统的体积和尺寸最小化，同时仍能实现良好的像差校正。

10. 发明授权

US4865434A Zoom lens capable of selecting a focal length beyond a standard focal length range 失效
标题翻译：变焦镜头能够选择超出标准焦距范围的焦距
公开(公告)号：US4865434A
公开(公告)日：1989-09-12
申请号：US782584
申请日：1985-10-01
申请人： Takashi Matsushita , Sadatoshi Takahashi , Nozomu Kitagishi , Keiji Ikemori , Tsunefumi Tanaka
发明人： Takashi Matsushita , Sadatoshi Takahashi , Nozomu Kitagishi , Keiji Ikemori , Tsunefumi Tanaka
IPC分类号： G02B15/173
CPC分类号： G02B15/173
摘要： A zoom lens including, from front to rear, a first lens unit of positive power, a second lens unit of negative power and a third lens unit of positive power, wherein for a standard focal length range at least the first and second lens units move simultaneously and independently of each other, and to obtain a focal length beyond the standard range, at least the second lens unit moves, whereby the locus of movement of the first lens unit bends at an end of the standard range, and as the standard range is exceeded, the first lens unit either remains stationary or moves forward.
摘要翻译：一种变焦透镜，包括从前到后的正功率的第一透镜单元，负功率的第二透镜单元和正光焦度的第三透镜单元，其中对于标准焦距范围，至少第一和第二透镜单元移动同时且彼此独立，并且为了获得超过标准范围的焦距，至少第二透镜单元移动，由此第一透镜单元的移动轨迹在标准范围的末端弯曲，并且作为标准范围超过，第一个镜头单元保持静止或向前移动。

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