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公开(公告)号：US20230076225A1
公开(公告)日：2023-03-09
申请号：US17820636
申请日：2022-08-18
Applicant: CANON KABUSHIKI KAISHA
Inventor： Naoto Doujou , Kazuhiko Kajiyama
Abstract: An optical system includes a diaphragm, and a first cemented lens disposed adjacent to an object side of the diaphragm. The first cemented lens included a negative lens. A predetermined condition is satisfied.
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公开(公告)号：US20160139376A1
公开(公告)日：2016-05-19
申请号：US14878099
申请日：2015-10-08
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takeyoshi Saiga , Kazuhiko Kajiyama , Masatsugu Nakano
IPC: G02B13/14 , H04N5/232 , H04N5/225 , G02B15/173 , G02B27/00
CPC classification number: G02B13/146 , G02B15/173 , H04N5/2254 , H04N5/23296
Abstract: Provided is a zoom lens, comprising, in order from an object side to an image side: a first lens unit having a positive refractive power; a second lens unit having a negative refractive power; a third lens unit having a negative refractive power; and a fourth lens unit having a positive refractive power. The second lens unit and the third lens unit are configured to move along loci different from each other during zooming. At least one lens unit of the first lens unit, the second lens unit, the third lens unit, or the fourth lens unit includes a positive lens and a negative lens that are arranged adjacent to each other, and materials for the positive lens and the negative lens are appropriately set, respectively.
Abstract translation: 本发明提供一种变焦透镜，其从物体侧到像侧依次包括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; 具有负屈光力的第三透镜单元; 以及具有正折光力的第四透镜单元。 第二透镜单元和第三透镜单元构造成在变焦期间彼此不同的轨迹移动。 第一透镜单元，第二透镜单元，第三透镜单元或第四透镜单元的至少一个透镜单元包括彼此相邻布置的正透镜和负透镜，并且用于正透镜和 负透镜分别适当设定。
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公开(公告)号：US20160109691A1
公开(公告)日：2016-04-21
申请号：US14882504
申请日：2015-10-14
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kazuhiko Kajiyama , Takeyoshi Saiga , Masatsugu Nakano
CPC classification number: G02B13/146 , G02B15/173 , G02B27/0025
Abstract: Provided is a zoom lens, including, in order from an object side to an image side, first, second, and third lens units having positive, negative, and positive refractive powers, respectively. The second lens unit moves toward image side during zooming from a wide angle end to a telephoto end, and an interval between adjacent lens units is changed during zooming. The first lens unit includes a lens pair of a positive lens (LP1) and a negative lens (LN1) that are arranged adjacent to each other. A refractive index of a material at 400 nm wavelength, a refractive index of a material at 1,050 nm wavelength, a refractive index of a material at 1,700 nm wavelength, an Abbe number and a partial dispersion ratio of a material, Abbe numbers and partial dispersion ratios of materials for the positive lens (LP1) and the negative lens (LN1) are each appropriately set.
Abstract translation: 提供了一种变焦透镜，分别包括从物体侧到像侧的顺序具有正，负和正屈光力的第一，第二和第三透镜单元。 在从广角端到望远端的变焦期间，第二透镜单元朝向图像侧移动，并且在变焦期间相邻透镜单元之间的间隔被改变。 第一透镜单元包括彼此相邻布置的正透镜（LP1）和负透镜（LN1）的透镜对。 400nm波长处的材料的折射率，材料的波长为1050nm的材料的折射率，材料的折射率为1,700nm，材料的阿贝数和部分分散比，阿贝数和部分色散 正透镜（LP1）和负透镜（LN1）的材料比率均适当设定。
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公开(公告)号：US11520120B2
公开(公告)日：2022-12-06
申请号：US16595315
申请日：2019-10-07
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kazuhiko Kajiyama , Tsubasa Nakamura
Abstract: An optical system for converting light from an object into parallel light, and guiding the parallel light to a plurality of image forming units each configured to form an image of the object includes a first lens unit having positive or negative refractive power and a second lens unit having positive refractive power that are disposed in order from an object side, wherein the first lens unit and the second lens unit are disposed at a widest interval in the optical system, and wherein the first lens unit consists of at least one positive lens and at least one negative lens that are disposed in order from the object side.
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公开(公告)号：US09535237B2
公开(公告)日：2017-01-03
申请号：US14878099
申请日：2015-10-08
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takeyoshi Saiga , Kazuhiko Kajiyama , Masatsugu Nakano
IPC: G02B15/14 , G02B13/14 , G02B15/173 , H04N5/225 , H04N5/232
CPC classification number: G02B13/146 , G02B15/173 , H04N5/2254 , H04N5/23296
Abstract: Provided is a zoom lens, comprising, in order from an object side to an image side: a first lens unit having a positive refractive power; a second lens unit having a negative refractive power; a third lens unit having a negative refractive power; and a fourth lens unit having a positive refractive power. The second lens unit and the third lens unit are configured to move along loci different from each other during zooming. At least one lens unit of the first lens unit, the second lens unit, the third lens unit, or the fourth lens unit includes a positive lens and a negative lens that are arranged adjacent to each other, and materials for the positive lens and the negative lens are appropriately set, respectively.
Abstract translation: 本发明提供一种变焦透镜，其从物体侧到像侧依次包括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; 具有负屈光力的第三透镜单元; 以及具有正折光力的第四透镜单元。 第二透镜单元和第三透镜单元构造成在变焦期间彼此不同的轨迹移动。 第一透镜单元，第二透镜单元，第三透镜单元或第四透镜单元的至少一个透镜单元包括彼此相邻布置的正透镜和负透镜，并且用于正透镜和 负透镜分别适当设定。
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Patent Agency Ranking
公开(公告)号：US20160147048A1
公开(公告)日：2016-05-26
申请号：US14942003
申请日：2015-11-16
Applicant: CANON KABUSHIKI KAISHA
Inventor： Masatsugu Nakano , Kazuhiko Kajiyama , Takeyoshi Saiga
IPC: G02B15/173 , G02B13/14 , G02B15/16
CPC classification number: G02B15/173 , G02B13/146
Abstract: Provided is a zoom lens, comprising, in order from an object side to an image side: a first lens unit having a positive refractive power; a second lens unit having a negative refractive power; and a third lens unit having a positive refractive power. The second lens unit is configured to move toward the image side during zooming from a wide angle end to a telephoto end, and an interval between adjacent lens units is changed during zooming. The first lens unit includes a positive lens and a negative lens that are arranged adjacent to each other. Materials for the positive lens and the negative lens are appropriately set.
Abstract translation: 本发明提供一种变焦透镜，其从物体侧到像侧依次包括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; 以及具有正屈光力的第三透镜单元。 第二透镜单元构造成在从广角端到望远端的变焦期间朝向图像侧移动，并且在变焦期间相邻透镜单元之间的间隔被改变。 第一透镜单元包括彼此相邻布置的正透镜和负透镜。 适当设定正透镜和负透镜的材料。
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公开(公告)号：US20140036143A1
公开(公告)日：2014-02-06
申请号：US13954250
申请日：2013-07-30
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yuji Katashiba , Kazuhiko Kajiyama , Hirofumi Fujii
IPC: H04N5/225
CPC classification number: H04N5/2254
Abstract: An image acquisition apparatus includes an imaging optical system configured to image an object, a reimaging optical system configured to reimage the object imaged by the imaging optical system, a reflecting member disposed in an optical path between the imaging optical system and the reimaging optical system, an image sensor configured to capture an image of the object reimaged by the reimaging optical system, and to output the image, a first driving unit configured to change a tilt of the reflecting member relative to an optical axis of the imaging optical system, and a correction unit configured to correct a positional deviation of the image in a rotational direction, wherein the positional deviation of the image is generated according to a change in the tilt of the reflecting member.
Abstract translation: 一种图像获取装置，包括被配置为对物体进行成像的成像光学系统，被配置为重新成像由成像光学系统成像的物体的成像光学系统;设置在成像光学系统和成像光学系统之间的光路中的反射部件， 图像传感器，其被配置为捕获由所述再成像光学系统重新成像的对象的图像，并且输出所述图像;第一驱动单元，被配置为改变所述反射部件相对于所述成像光学系统的光轴的倾斜;以及 校正单元，被配置为校正图像在旋转方向上的位置偏差，其中，根据反射构件的倾斜度的变化产生图像的位置偏差。
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公开(公告)号：US12228708B2
公开(公告)日：2025-02-18
申请号：US18182903
申请日：2023-03-13
Applicant: CANON KABUSHIKI KAISHA
Inventor： Naoto Doujou , Kazuhiko Kajiyama
Abstract: An optical system includes an aperture stop closest to an object and a plurality of lenses. The plurality of lenses includes a first positive lens convex toward an object side, a first negative lens convex toward the object side, a first cemented lens, and a second cemented lens arranged consecutively in this order from the object side to an image side. The first cemented lens and the second cemented lens each include a negative lens concave toward the object side and a positive lens cemented to the negative lens, and the negative lens and the positive lens are arranged in this order from the object side to the image side.
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公开(公告)号：US20190033567A1
公开(公告)日：2019-01-31
申请号：US16042990
申请日：2018-07-23
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kazuhiko Kajiyama , Koji Maezawa
Abstract: An optical system includes a first optical element including a first reflecting region having a convex shape toward an enlargement side, a second optical element having a reduction-side surface having a convex shape toward the enlargement side, and a third optical element having an enlargement-side surface having a convex shape toward the enlargement side, wherein the reduction-side surface of the second optical element or the enlargement-side surface of the third optical element includes a second reflecting region, wherein the third optical element includes a refracting region having positive power, and wherein light from the enlargement side proceeds to a reduction side sequentially through a refracting region of the first optical element, the second reflecting region, the first reflecting region, a refracting region of the second optical element, and the refracting region of the third optical element.
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公开(公告)号：US20150207972A1
公开(公告)日：2015-07-23
申请号：US14592419
申请日：2015-01-08
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kazuhiko Kajiyama , Yuji Katashiba
CPC classification number: H04N5/2254 , G02B7/343 , G03B3/10 , H04N5/2258 , H04N5/23212 , H04N5/349
Abstract: The image acquisition apparatus includes an imaging optical system configured to form an image of an object, multiple image sensors each configured to capture an image of the object through the imaging optical system, multiple variable angle prisms disposed between the imaging optical system and the image sensors, and the variable angle prisms each being paired with one of the image sensors. A controller is configured to control each variable angle prism to correct defocus of the imaging optical system on the image sensor paired with that variable angle prism.
Abstract translation: 图像采集装置包括被配置为形成物体的图像的成像光学系统，每个被配置为通过成像光学系统捕获物体的图像的多个图像传感器，设置在成像光学系统和图像传感器之间的多个可变角度棱镜 ，并且可变角棱镜各自与图像传感器之一配对。 控制器被配置为控制每个可变角度棱镜以校正与该可变角度棱镜配对的图像传感器上的成像光学系统的散焦。
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