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1. 发明授权

US4668054A Vari-focal photographic lens system of lens group exchange type 失效
标题翻译：镜头组交换型变焦摄影镜头系统
公开(公告)号：US4668054A
公开(公告)日：1987-05-26
申请号：US723895
申请日：1985-04-16
申请人： Hiroshi Takase , Masaki Imaizumi , Toru Fujii
发明人： Hiroshi Takase , Masaki Imaizumi , Toru Fujii
IPC分类号： G02B15/02 , G02B15/04 , G02B9/62
CPC分类号： G02B15/04
摘要： A vari-focal photographic lens system of lens group exchange type comprising, in the order from the object side, a first lens unit having positive refractive power, a second lens unit having negative refractive power, and a third lens unit having negative refractive power, the vari-focal photographic lens system being arranged to vary the focal length thereof by exchanging the second lens unit for another second lens unit having different lens configuration.
摘要翻译：一种透镜组交换型变焦摄影透镜系统，包括从物体侧开始具有正折光力的第一透镜单元，具有负屈光力的第二透镜单元和具有负屈光力的第三透镜单元，变焦摄影透镜系统被布置为通过将具有不同透镜构造的另一第二透镜单元更换第二透镜单元来改变其焦距。

2. 发明授权

US4653870A Compact vari-focal photographic lens system 失效
标题翻译：紧凑型变焦摄影镜头系统
公开(公告)号：US4653870A
公开(公告)日：1987-03-31
申请号：US707867
申请日：1985-03-04
申请人： Masaki Imaizumi , Hiroshi Takase , Toru Fujii
发明人： Masaki Imaizumi , Hiroshi Takase , Toru Fujii
IPC分类号： G02B15/10 , G02B15/14 , G02B15/02
CPC分类号： G02B15/10
摘要： A compact vari-focal photographic lens system comprising a master lens system and an auxiliary lens group wherein the master lens system comprises a front lens unit having positive refractive power and a rear lens unit having negative refractive power, the compact vari-focal photographic lens system being arranged to vary the focal length of the lens system as a whole by inserting and removing the auxiliary lens group to and from the image side of the master lens system and arranged that the overall length of the lens system is short, it is possible to vary the focal length without moving the stop mechanism, and aberrations are corrected satisfactorily favorably, the compact vari-focal photographic lens system being suitable for the use with popular cameras.
摘要翻译：一种紧凑型变焦摄影透镜系统，包括主镜头系统和辅助镜头组，其中主镜头系统包括具有正屈光力的前透镜单元和具有负屈光力的后透镜单元，紧凑型变焦摄影透镜系统被布置为通过将辅助透镜组插入到主透镜系统的像侧并从主透镜系统的像侧移除来改变透镜系统的焦距，并且布置为透镜系统的总长度短，在不移动停止机构的情况下改变焦距，并且令人满意地校正像差，紧凑型变焦摄影透镜系统适合于与流行的相机一起使用。

3. 发明授权

US4715693A Vari-focal photographic lens system of rear lens group exchange type 失效
标题翻译：后视镜组交换型变焦摄影镜头系统
公开(公告)号：US4715693A
公开(公告)日：1987-12-29
申请号：US701040
申请日：1985-02-12
申请人： Hiroshi Takase , Masaki Imaizumi , Toru Fujii
发明人： Hiroshi Takase , Masaki Imaizumi , Toru Fujii
IPC分类号： G02B15/02 , G02B15/08 , G02B9/34 , G02B9/60
CPC分类号： G02B15/08
摘要： A vari-focal photographic lens system of rear lens group exchange type comprising a front lens group and a rear lens group and arranged to vary the focal length of the lens system as a whole by exchanging the rear lens group for another rear lens group having a different lens configuration, the vari-focal photographic lens system being arranged so compactly and arranged that the variation of aberrations is small.
摘要翻译：一种后透镜组交换类型的变焦摄影透镜系统，包括前透镜组和后透镜组，并且被布置为通过更换后透镜组来改变整个透镜系统的焦距，用于具有不同的透镜配置，变焦摄影透镜系统布置得如此紧凑并且布置成使得像差的变化小。

4. 发明授权

US4708442A Varifocal lens system 失效
标题翻译：变焦镜头系统
公开(公告)号：US4708442A
公开(公告)日：1987-11-24
申请号：US703540
申请日：1985-02-20
申请人： Toru Fujii , Hiroshi Takase , Masaki Imaizumi
发明人： Toru Fujii , Hiroshi Takase , Masaki Imaizumi
IPC分类号： G02B15/10 , G02B15/04 , G02B15/14 , G02B15/02 , G02B9/34 , G02B9/60
CPC分类号： G02B15/04 , G02B15/14
摘要： A varifocal lens system equipped with an auxiliary lens group comprising a master lens system consisting of a front lens group having positive refractive power and a rear lens group having negative refractive power, and an auxiliary lens group arranged in such a manner that it can be freely inserted and removed, for varying focal length, between said front and rear lens groups. Said varifocal lens system is equipped with a simple mechanism capable of varying focal length of said lens system in a very short time.
摘要翻译：一种配备有辅助透镜组的变焦透镜系统，包括由具有正折光力的前透镜组和具有负屈光力的后透镜组构成的主透镜系统，以及辅助透镜组，其可以自由地布置在所述前后透镜组之间插入和移除用于变焦的焦距。所述变焦透镜系统配备有能够在非常短的时间内改变所述透镜系统的焦距的简单机构。

5. 发明授权

US5581400A Finder optical system with low-hygroscopic organic material 失效
标题翻译： Finder光学系统具有低吸湿性的有机材料
公开(公告)号：US5581400A
公开(公告)日：1996-12-03
申请号：US335352
申请日：1994-11-03
申请人： Hiroshi Takase , Tatsuru Kanamori , Masaki Imaizumi , Masaru Morooka
发明人： Hiroshi Takase , Tatsuru Kanamori , Masaki Imaizumi , Masaru Morooka
IPC分类号： G03B13/06 , G02B23/14 , G03B13/08 , G02B3/00 , G02B23/00
CPC分类号： G02B23/14
摘要： A finder optical system including an objective system, an image erecting system for erecting an object image formed by the objective system, and an eyepiece system for observing the object image. These systems are constructed of low-hygroscopic organic materials. Thus, the finder optical system can prevent transient variations of optical properties caused by hygroscopicity.
摘要翻译：一种取景器光学系统，包括物镜系统，用于搭建由物镜系统形成的物体图像的图像搭建系统，以及用于观察物体图像的目镜系统。这些系统由低吸湿性有机材料构成。因此，取景器光学系统可以防止由吸湿性引起的光学特性的瞬态变化。

6. 发明授权

US5727239A Photographing optical apparatus 失效
标题翻译：摄影光学仪器
公开(公告)号：US5727239A
公开(公告)日：1998-03-10
申请号：US607774
申请日：1996-02-27
申请人： Masashi Hankawa , Masaki Imaizumi , Yuji Ogasawara
发明人： Masashi Hankawa , Masaki Imaizumi , Yuji Ogasawara
IPC分类号： G03B35/10 , G03B35/00 , G03B37/00 , H04N13/00 , G03B41/00
CPC分类号： H04N13/0217 , G03B35/00 , G03B37/00
摘要： A photographing optical apparatus includes reflecting members for reflecting images transmitted along a plurality of optical paths having parallax; optical systems arranged on the plurality of optical paths behind the reflecting members; optical members for reducing vertically the images passing through the optical systems; and an image sensor disposed at or near the imaging plane of the images so that the images reduced by the optical members are formed on the image sensor. By moving the reflecting members, a convergent angle is changed and stereoscopic photography and panoramic photography become possible.
摘要翻译：摄影光学装置包括反射构件，用于反射沿具有视差的多个光路传输的图像; 布置在反射构件后面的多个光路上的光学系统; 用于垂直地减少通过光学系统的图像的光学构件; 以及设置在图像的成像平面处或附近的图像传感器，使得由图像传感器形成由光学部件减小的图像。通过移动反射构件，会聚角度改变，立体摄影和全景摄影成为可能。

7. 发明授权

US5598296A Prismatic telescope optical system 失效
标题翻译：棱镜望远镜光学系统
公开(公告)号：US5598296A
公开(公告)日：1997-01-28
申请号：US458063
申请日：1995-06-01
申请人： Masaki Imaizumi
发明人： Masaki Imaizumi
IPC分类号： G02B13/02 , G02B15/04 , G02B23/02 , G02B25/00 , G02B15/14
CPC分类号： G02B23/02 , G02B15/04
摘要： A prismatic telescope optical system is available to include one of a plurality of optical systems different in magnification from one another, each having an objective system, an image erecting prism system, and an eyepiece system. Each of plurality of optical systems is constructed so that its respective overall length is are made practically equal by varying the refractive indices of an included image erecting prism system.
摘要翻译：棱镜望远镜光学系统可用于包括彼此不同的多个光学系统中的一个，每个具有物镜系统，图像竖立棱镜系统和目镜系统。多个光学系统中的每一个被构造成使得其各自的总长度通过改变所包括的图像直立棱镜系统的折射率而实际上相等。

8. 发明授权

US4609263A Telephoto lens system having an improved focusing arrangement 失效
标题翻译：长焦镜头系统具有改进的聚焦装置
公开(公告)号：US4609263A
公开(公告)日：1986-09-02
申请号：US576898
申请日：1984-02-03
申请人： Masaki Imaizumi
发明人： Masaki Imaizumi
IPC分类号： G02B13/02
CPC分类号： G02B13/02
摘要： A focusing method for a telephoto lens system comprising a front lens group having positive refractive power, an intermediate lens group having negative refractive power, and a rear lens group having positive refractive power, the focusing method for a telephoto lens system being arranged to focus the telephoto lens system by moving the intermediate lens group toward the image side and the rear lens group toward the object side.
摘要翻译：一种用于长焦透镜系统的聚焦方法，包括具有正屈光力的前透镜组，具有负屈光力的中间透镜组和具有正折光力的后透镜组，用于远摄透镜系统的聚焦方法被设置为聚焦将中间透镜组朝向像侧移动，将后透镜组朝向物体侧移动。

9. 发明授权

US5557464A Wide-field eyepiece lens system 失效
标题翻译：广视目镜系统
公开(公告)号：US5557464A
公开(公告)日：1996-09-17
申请号：US505396
申请日：1995-07-21
申请人： Masaki Imaizumi
发明人： Masaki Imaizumi
IPC分类号： G02B25/00
CPC分类号： G02B25/001
摘要： A wide field eyepiece lens system composed, in order from a side of an objective lens system, of a first lens unit which is composed of a plurality of lens elements and has a diverging function, and a second lens unit which is composed of a plurality of lens elements and has a converging function. The eyepiece lens system has an apparent field angle of 75.degree. to 80.degree., an eye relief of 0.95 f or longer and aberrations favorably corrected over an entire range of a visual field thereof including marginal portions, and is configured so as to satisfy the following conditions (1) and (2):-8.0
摘要翻译：一种广视场目镜系统，从物镜系统的一侧开始，由多个透镜元件组成并具有发散功能的第一透镜单元和由多个透镜组成的第二透镜单元的透镜元件并具有会聚功能。目镜透镜系统具有75°至80°的视场角，0.95f以上的眼睛仰角，并且在包括边缘部分的视野的整个范围内有利地校正像差，并且被配置为满足以下条件（1）和（2）：-8.0

10. 发明授权

US5148321A Compact zoom lens system 失效
标题翻译：小型变焦镜头系统
公开(公告)号：US5148321A
公开(公告)日：1992-09-15
申请号：US677658
申请日：1991-03-29
申请人： Hisashi Goto , Masaki Imaizumi , Shigeru Kato
发明人： Hisashi Goto , Masaki Imaizumi , Shigeru Kato
IPC分类号： G02B13/18 , G02B15/163 , G02B15/20
CPC分类号： G02B15/163
摘要： A compact zoom lens system comprising, in the order from the object side, a first lens unit having a positive refractive power, an aperture stop, a second lens unit having a positive refractive power and a third lens unit having a negative refractive power; and adapted so as to perform variation of focal length from the wide position to the tele position by moving the first lens unit and the third lens unit from the image side toward the object side, and displacing the second lens unit and the aperture stop so as to widen the airspace reserved between the first lens unit and the second lens unit, and narrow the airspace reserved between the second lens unit and the third lens unit. This zoom lens system has a total length shortened by thinning the first lens unit.
摘要翻译：一种紧凑型变焦透镜系统，包括从物体侧开始具有正屈光力的第一透镜单元，孔径光阑，具有正折光力的第二透镜单元和具有负屈光力的第三透镜单元; 并且适于通过将第一透镜单元和第三透镜单元从图像侧朝向物体侧移动来执行从宽位置到远摄位置的焦距的变化，并且使第二透镜单元和孔径光阑移位，以便以扩大在第一透镜单元和第二透镜单元之间保留的空间，并且使保留在第二透镜单元和第三透镜单元之间的空间变窄。该变焦透镜系统通过使第一透镜单元变薄而缩短总长度。

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