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1. 发明授权

US11543635B2 Attachment optical system, optical system, manufacturing method of optical system 有权
公开(公告)号：US11543635B2
公开(公告)日：2023-01-03
申请号：US17182382
申请日：2021-02-23
申请人： CANON KABUSHIKI KAISHA
发明人： Yoshiyuki Taki
IPC分类号： G02B15/02 , G02B15/08 , G02B15/14 , G02B3/06
摘要： An attachment optical system includes a first converter optical system attachable to an object side of an imaging optical system, and a second converter optical system attachable to an image side of the imaging optical system. The first converter optical system includes a dome-shaped cover and at least one positive lens. A predetermined condition is satisfied.

2. 发明申请

US20160291298A1 PLURALITY OF IMAGING OPTICAL SYSTEMS AND IMAGE PICKUP APPARATUS USING THE SAME 有权
标题翻译：成像光学系统的多样性和使用它的图像拾取装置
公开(公告)号：US20160291298A1
公开(公告)日：2016-10-06
申请号：US15180390
申请日：2016-06-13
申请人： OLYMPUS CORPORATION
发明人： Kazuteru KAWAMURA , Kazuyuki IWASA
IPC分类号： G02B15/08 , G03B13/32 , G03B7/20
CPC分类号： G02B15/08 , G02B9/14 , G02B9/28 , G02B13/00 , G03B3/02 , G03B7/20 , G03B13/32
摘要： A plurality of imaging optical systems includes at least two imaging optical systems, and each imaging optical system includes an identical diaphragm member. Each imaging optical system includes in order from an object side, a front lens unit having a positive refractive power, a focusing lens unit having a negative refractive power, and a rear lens unit having a positive refractive power. The diaphragm member is disposed near the focusing lens unit. At the time of focusing, only the focusing lens unit moves on an optical axis. Each imaging optical system satisfies the following conditional expression (1), and the plurality of imaging optical systems satisfies the following conditional expressions (2) and (3). 0.5
摘要翻译：这些成像光学系统包括具有不同焦距的两个成像光学系统。每个成像光学系统设置有相同的隔膜构件，并且从物体侧依次设置具有正折光力的前侧透镜组（GF），具有负屈光力的聚焦透镜组（Fo），以及具有正折射力的后侧透镜组（GR）。隔膜构件设置在聚焦透镜组（Fo）附近。只有聚焦透镜组（Fo）沿光轴移动。每个成像光学系统满足条件表达式（1），即0.5

3. 发明授权

US08223436B2 Rear attachment lens, imaging optical system and image pickup apparatus 有权
标题翻译：后附件镜头，成像光学系统和图像拾取装置
公开(公告)号：US08223436B2
公开(公告)日：2012-07-17
申请号：US12885142
申请日：2010-09-17
申请人： Shigenobu Sugita , Kaoru Eguchi
发明人： Shigenobu Sugita , Kaoru Eguchi
IPC分类号： G02B15/08
CPC分类号： G02B15/08 , G02B27/0062
摘要： A rear attachment lens detachably attached to a main lens system at an image side thereof to lengthen a focal length includes a negative lens disposed such that, when L is a distance between a lens surface closest to an object side and a lens surface closest to an image side in the rear attachment lens, the negative lens is within an area in which a distance from the lens surface closest to the object side to the negative lens is in the range of 0.5 L to 1.0 L. When νdn1 is an Abbe number of a material of the negative lens with respect to the d-line and θgFn1 is a partial dispersion ratio of the material of the negative lens with respect to the g-line and the F-line, the following conditions are satisfied: 10
摘要翻译：可拆卸地附接到主透镜系统在其像侧的后附加透镜以延长焦距包括负透镜，其设置为当L是最靠近物体侧的透镜表面与最靠近物体侧的透镜表面之间的距离时在后附加透镜中的图像侧，负透镜位于距透镜表面最靠近物体侧至负透镜的距离处于0.5L至1.0L的范围内。当nn1为阿贝时相对于d线和＆lt;负透镜的材料的数量; gFn1是负透镜的材料相对于g线和F线的部分色散比，满足以下条件： 10 <＆ngr; dn1 <23 0.020 <＆thetas; gFn1-0.6438 + 0.001682 *＆ngr; dn1 <0.100。

4. 发明授权

US07593163B2 Rear converter lens apparatus and taking system comprising the same 有权
标题翻译：后转换镜头装置及其制造系统
公开(公告)号：US07593163B2
公开(公告)日：2009-09-22
申请号：US12231603
申请日：2008-09-03
申请人： Yasuharu Yamada , Teruhisa Mitsuo
发明人： Yasuharu Yamada , Teruhisa Mitsuo
IPC分类号： G02B15/08 , G02B15/02
CPC分类号： G02B15/12 , G03B19/12
摘要： The invention relates to a rear converter lens apparatus to obtain a lens system having a focal length longer than that of a master lens device by the mounting of the master lens device, and a taking system comprising the same. A converter lens portion consists of, in order from an object side that is the master lens device side, a first lens group of positive refracting power, a second lens group of positive refracting power and a third lens group of negative refracting power. Between the respective lens groups there is a spacing. The first and second lens groups are located such that of axial air spaces in the converter lens portion, an air space between the first lens group and the second lens group is largest. One each lens group comprises a positive lens element and a negative lens element.
摘要翻译：本发明涉及一种后转换透镜装置，其通过安装主透镜装置获得具有比主镜头装置长的焦距的透镜系统，以及包括该透镜装置的拍摄系统。转换器透镜部分从主镜头装置侧的物体侧起依次具有正折射率的第一透镜组，正折射率的第二透镜组和负折射光焦度的第三透镜组。在相应的透镜组之间存在间距。第一和第二透镜组被定位成使得在转换器透镜部分中的轴向空气空间，第一透镜组和第二透镜组之间的空气空间最大。一个透镜组包括正透镜元件和负透镜元件。

5. 发明授权

US5253112A Rear conversion lens 失效
标题翻译：后转换镜头
公开(公告)号：US5253112A
公开(公告)日：1993-10-12
申请号：US974482
申请日：1992-11-12
申请人： Kenzaburo Suzuki , Yoshinari Hamanishi
发明人： Kenzaburo Suzuki , Yoshinari Hamanishi
IPC分类号： G02B15/12 , G02B15/08
CPC分类号： G02B15/08
摘要： The rear conversion lens of the present invention is compact and maintains an excellent imaging performance even when it is mounted on a telephoto objective lens the enlargement magnification of whose focal length is relatively high, e.g. about double and whose F-number is of the order of 2-2.8, and moreover does not intercept a light beam even in the fully open state of the aperture. The rear conversion lens of the present invention is an RCL adapted to be mounted on the image side of an objective lens and having negative refractive power for enlarging the combined focal length of itself and the objective lens, and has, in succession from the objective lens side, a first lens unit of positive or negative refractive power, a second lens unit of negative refractive power and a third lens unit of positive refractive power, the first lens unit having a positive lens most adjacent to the object side, and when the air gap between the first lens unit and the second lens unit is D.sub.1 and the air gap between the second lens unit and the third lens unit is D.sub.2 and the on-axis lens thickness from the first surface to the last surface of the RCL is .SIGMA.d and the focal length of the entire RCL system is f.sub.R, the RCL satisfies the following conditions:0.13
摘要翻译：本发明的后转换透镜是紧凑的，并且即使将其安装在远摄物镜上也能保持优异的成像性能，其焦距的放大倍率比较高，例如大约为双倍，其F值为2-2.8级，而且即使在光圈的完全打开状态下也不会遮挡光束。本发明的后转换透镜是适于安装在物镜的像侧并具有负折射力的RCL，用于放大其本身和物镜的组合焦距，并且从物镜正面或负折射力的第一透镜单元，负折光力的第二透镜单元和正折光力的第三透镜单元，所述第一透镜单元具有与物体侧最相邻的正透镜，并且当空气第一透镜单元和第二透镜单元之间的间隙为D1，第二透镜单元和第三透镜单元之间的气隙为D2，并且从RCL的第一表面到最后表面的轴上透镜厚度为SIGMA d 并且整个RCL系统的焦距为fR，RCL满足以下条件：0.13

6. 发明授权

US4983026A Focal length changeable lens system 失效
标题翻译：焦距可变透镜系统
公开(公告)号：US4983026A
公开(公告)日：1991-01-08
申请号：US137518
申请日：1987-12-22
申请人： Yoshinobu Kudo , Kazuo Kimura
发明人： Yoshinobu Kudo , Kazuo Kimura
IPC分类号： G02B9/16 , G02B9/34 , G02B9/60 , G02B9/62 , G02B9/64 , G02B13/18 , G02B15/08 , G02B15/10 , G02B15/12
CPC分类号： G02B15/08
摘要： The present invention provides a focal length changeable lens system which comprises a master lens group of a positive refractive power having at least one negative lens element made of a synthetic resin material; and a rear conversion lens group of a negative refractive power retractably arranged on the image side of the master lens group and having at least one positive lens element made of a synthetic resin material, in order to well compensate the change of back focal length of the lens system due to the change in temperature thereof without increasing the cost of the lens system.
摘要翻译：本发明提供一种焦距可变透镜系统，其包括具有由合成树脂材料制成的至少一个负透镜元件的正屈光力的主透镜组; 以及可折回地设置在主透镜组的像侧上并且具有由合成树脂材料制成的至少一个正透镜元件的负折射力的后转换透镜组，以便很好地补偿所述主透镜组的后焦距的变化透镜系统由于其温度的变化而不增加透镜系统的成本。

7. 发明授权

US10254508B2 Converter device and image capturing apparatus 有权
公开(公告)号：US10254508B2
公开(公告)日：2019-04-09
申请号：US15360740
申请日：2016-11-23
申请人： CANON KABUSHIKI KAISHA
发明人： Shigenobu Sugita
IPC分类号： G02B7/14 , G02B15/10 , G02B15/08 , H04N5/225 , H04N5/232
摘要： In a converter device that is attached between a lens device, which is attachable to and detachable from an image capturing apparatus, and the image capturing apparatus, and that has a reimaging optical system configured to reimage a primary image formed by the lens device on an image plane as a secondary image, the imaging magnification of the reimaging optical system and imaging positions of a primary image and a secondary image are appropriately set.

8. 发明授权

US09671596B2 Plurality of imaging optical systems and image pickup apparatus using the same 有权
公开(公告)号：US09671596B2
公开(公告)日：2017-06-06
申请号：US15180390
申请日：2016-06-13
申请人： OLYMPUS CORPORATION
发明人： Kazuteru Kawamura , Kazuyuki Iwasa
IPC分类号： G02B13/00 , G03B13/32 , G02B9/14 , G02B15/08 , G03B7/20 , G03B3/02 , G02B9/28
CPC分类号： G02B15/08 , G02B9/14 , G02B9/28 , G02B13/00 , G03B3/02 , G03B7/20 , G03B13/32
摘要： A plurality of imaging optical systems includes at least two imaging optical systems, and each imaging optical system includes an identical diaphragm member. Each imaging optical system includes in order from an object side, a front lens unit having a positive refractive power, a focusing lens unit having a negative refractive power, and a rear lens unit having a positive refractive power. The diaphragm member is disposed near the focusing lens unit. At the time of focusing, only the focusing lens unit moves on an optical axis. Each imaging optical system satisfies the following conditional expression (1), and the plurality of imaging optical systems satisfies the following conditional expressions (2) and (3). 0.5

9. 发明授权

US07864424B2 Zero order pigments (ZOP) 有权
标题翻译：零级颜料（ZOP）
公开(公告)号：US07864424B2
公开(公告)日：2011-01-04
申请号：US11806351
申请日：2007-05-31
申请人： Alexander Stuck , Harald Walter
发明人： Alexander Stuck , Harald Walter
IPC分类号： G02B15/08
CPC分类号： C09C1/0015 , C01P2006/42 , C09C1/04 , C09C2210/30 , C09C2210/40 , G02B5/1809
摘要： One or more zero-order diffractive pigments (ZOP) having both a particle distribution matrix material, and a layer of material in or on such a matrix material and having an index of refraction higher than that of the matrix material, and having a diffractive grating structure with a period in the range of 100 to 600 nm, which is smaller than the wavelength of light reflectable thereby in the zeroth reflection order. In such ZOPs the index of refraction of the matrix material is usually at least 0.25 less than that of the material of the layer, and the layer is typically of a thickness between 30 and 500 nm.
摘要翻译：一种或多种具有粒子分布矩阵材料的零级衍射颜料（ZOP）和在该基体材料中或其上的材料层，其折射率高于基体材料的折射率，并且具有衍射光栅结构，其周期在100至600nm的范围内，其小于由第零反射次数反射的光的波长。在这样的ZOP中，基质材料的折射率通常比层的材料的折射率小至少0.25，并且该层通常具有在30和500nm之间的厚度。

10. 发明授权

US5349474A Rear converter lens 失效
标题翻译：后转换镜头
公开(公告)号：US5349474A
公开(公告)日：1994-09-20
申请号：US3428
申请日：1993-01-12
申请人： Seiji Shimizu , Masaru Takashima
发明人： Seiji Shimizu , Masaru Takashima
IPC分类号： G02B15/12 , G02B15/08
CPC分类号： G02B15/08
摘要： The invention is directed to a compact rear converter lens that has a high zoom ratio of the order of 1.7 to 2.0, is corrected in terms of various aberrations in a well-balanced manner, is little affected by production errors, and is made so compact that it can be built in a compact camera. This rear converter lens that has a negative focal length comprises three lenses or a first lens of negative power, a second lens of positive power and a third lens of negative power, conforms to0.3
摘要翻译：本发明涉及一种紧凑型后转换镜头，其具有1.7至2.0级的高变焦倍率，以均衡的方式根据各种像差进行校正，几乎不受生产误差的影响，并使其变得紧凑它可以建立在一个紧凑的相机。该具有负焦距的后转换器透镜包括三个透镜或负功率的第一透镜，正光焦度的第二透镜和负功率的第三透镜，符合0.3

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