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公开(公告)号：US20210255440A1
公开(公告)日：2021-08-19
申请号：US17189353
申请日：2021-03-02
Applicant: OLYMPUS CORPORATION
Inventor： Keisuke ICHIKAWA , Takashi FUJIKURA , Shinichi MIHARA , Yoshihiro UCHIDA
Abstract: A wide-angle optical system is a wide-angle optical system having a lens component, and includes in order from an object side, a first lens unit having a negative refractive power, a second lens unit having a negative refractive power, and a third lens unit having a positive refractive power. At the time of carrying out a focal-position adjustment from a far point to a near point, the second lens unit is moved from a first position toward a second position. The third lens unit includes not less than three lens components. Not less than three lens components include a first lens component and a second lens component. Each of the first lens component and the second lens component has a positive refractive power, and following conditional expression (1) is satisfied: 0.8
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公开(公告)号：US20190200847A1
公开(公告)日：2019-07-04
申请号：US16295522
申请日：2019-03-07
Applicant: OLYMPUS CORPORATION
Inventor： Yoshihiro UCHIDA
CPC classification number: A61B1/00193 , A61B1/00 , A61B1/00009 , A61B1/0005 , A61B1/00096 , A61B1/0019 , A61B1/04 , A61B1/06 , G02B23/2415 , G02B23/26
Abstract: A stereoscopic-vision endoscope includes an objective optical system, a relay optical system, a first lens unit, a light-beam splitting element, a second lens unit, and an image sensor. An intermediate image, a first image, and a second image are formed in a common optical path, a first optical path, and a second optical path respectively. The light-beam splitting element has a surface of incidence and a surface of emergence. A first light ray which passes through the intermediate image and reaches first image and a second light ray which passes through the intermediate image and reaches the second image are refracted to be away from an optical axis of the common optical path on the surface of incidence, as well as are refracted to be closer to the optical axis of the common optical path on the surface of emergence.
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公开(公告)号：US20180231747A1
公开(公告)日：2018-08-16
申请号：US15954265
申请日：2018-04-16
Applicant: OLYMPUS CORPORATION
Inventor： Keisuke TAKADA , Yoshihiro UCHIDA
CPC classification number: G02B13/04 , G02B1/041 , G02B9/12 , G02B13/0035
Abstract: An image pickup apparatus includes an optical system which includes a plurality of lenses, and an image sensor which is disposed at an image position of the optical system, wherein the optical system includes in order from an object side, a first lens having a negative refractive power, a second lens having a positive refractive power, an aperture stop, and a third lens, and each of the first lens, the second lens, and the third lens is formed of a material having a refractive index not higher than 1.70, and the following conditional expressions (1) and (2) are satisfied: 2.0
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公开(公告)号：US20200018935A1
公开(公告)日：2020-01-16
申请号：US16583057
申请日：2019-09-25
Applicant: OLYMPUS CORPORATION
Inventor： Yoshihiro UCHIDA
Abstract: An optical system for stereoscopic vision includes a first optical system and a second optical system. Each of the first optical system and the second optical system includes a front unit, a stop, and a rear unit having a positive refractive power. Each of the two front units includes a first negative lens, and the first negative lens is a lens positioned nearest to an object. Each of the two stops moves in a direction parallel to a plane including an optical axis of the first optical system and an optical axis of the second optical system. Both the stops move to be drawn away from a central axis or move to come closer to the central axis, and the following conditional expressions (1) and (2) are satisfied: −20.0
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公开(公告)号：US20180224637A1
公开(公告)日：2018-08-09
申请号：US15946336
申请日：2018-04-05
Applicant: OLYMPUS CORPORATION
Inventor： Yoshihiro UCHIDA , Keisuke TAKADA
CPC classification number: G02B13/04 , A61B1/00096 , A61B1/041 , B60Y2400/3015 , G02B9/34 , G02B13/004 , G02B13/18 , G02B23/243
Abstract: An image pickup apparatus includes an optical system which includes a plurality of lenses, and an image sensor which is disposed at an image position of the optical system, wherein the optical system includes in order from an object side, a first lens having a negative refractive power, a second lens having a negative refractive power, a third lens having a positive refractive power, and a fourth lens, and the following conditional expressions (1) and (2) are satisfied: α max−α min
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Patent Agency Ranking
公开(公告)号：US20200150415A1
公开(公告)日：2020-05-14
申请号：US16745733
申请日：2020-01-17
Applicant: OLYMPUS CORPORATION
Inventor： Yoshihiro UCHIDA
IPC: G02B23/24 , H04N13/207
Abstract: An optical system for stereoscopic vision includes in order from an object side, a front unit and a rear unit. Each of the front unit and the rear unit includes a lens component consisting of a single lens or a cemented lens. The front unit includes a first front unit and a second front unit, and an optical axis of the first front unit, an optical axis of the second front unit, and an optical axis of the rear unit are positioned in a same plane. The optical axis of the rear unit is positioned between the optical axis of the first front unit and the optical axis of the second front unit, and the following conditional expression (1) is satisfied: 0.15
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公开(公告)号：US20200008660A1
公开(公告)日：2020-01-09
申请号：US16574651
申请日：2019-09-18
Applicant: OLYMPUS CORPORATION
Inventor： Yoshihiro UCHIDA , Tsutomu UZAWA
IPC: A61B1/00
Abstract: A stereoscopic-vision endoscope optical system includes a pair of objective optical systems, a pair of relay optical systems, and a pair of image forming optical systems. The image forming optical system includes a first lens unit, a first optical-path bending element, and a second optical-path bending element. The objective optical system and the relay optical system are disposed in a first optical path. A second optical path is formed between the first optical-path bending element and the second optical-path bending element. A third optical path is formed between the second optical-path bending element and a final image. The second optical path is positioned farther from the central axis, than the first optical path. The third optical path is positioned closer to the central axis, than the second optical path.
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公开(公告)号：US20180224638A1
公开(公告)日：2018-08-09
申请号：US15946377
申请日：2018-04-05
Applicant: OLYMPUS CORPORATION
Inventor： Yoshihiro UCHIDA , Keisuke TAKADA
CPC classification number: G02B13/04 , A61B1/00096 , A61B1/041 , B60Y2400/3015 , G02B9/12 , G02B13/0035 , G02B13/18 , G02B23/243
Abstract: An image pickup apparatus includes an optical system which includes a plurality of lenses, and an image sensor which is disposed at an image position of the optical system, wherein the optical system includes in order from an object side, a first lens having a negative refractive power, an aperture stop, a second lens having a positive refractive power, and a third lens having a positive refractive power, and each of the first lens, the second lens, and the third lens is formed of a material having a refractive index not higher than 1.70, and the following conditional expressions (1), (2), (3), and (4) are satisfied: 0
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公开(公告)号：US20180231746A1
公开(公告)日：2018-08-16
申请号：US15954115
申请日：2018-04-16
Applicant: OLYMPUS CORPORATION
Inventor： Yoshihiro UCHIDA , Keisuke TAKADA
CPC classification number: G02B13/04 , G02B1/041 , G02B9/12 , G02B13/0035
Abstract: An image pickup apparatus includes an optical system which includes a plurality of lenses, and an image sensor which is disposed at an image position of the optical system, wherein the optical system includes in order from an object side, a first lens having a negative refractive power, an aperture stop, a second lens having a positive refractive power, and a third lens, and an object-side surface of the third lens has a shape which his concave toward the object side, and each of the first lens, the second lens, and the third lens is formed of a material having a refractive index not higher than 1.70, and the following conditional expression (1) is satisfied: 0.5
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公开(公告)号：US20180224639A1
公开(公告)日：2018-08-09
申请号：US15944506
申请日：2018-04-03
Applicant: OLYMPUS CORPORATION
Inventor： Keisuke TAKADA , Yoshihiro UCHIDA
CPC classification number: G02B13/18 , G02B13/04 , G02B13/06 , G02B23/243 , G02B27/0025
Abstract: An image pickup apparatus includes an optical system which includes a plurality of lenses, and an image sensor which is disposed at an image position of the optical system, wherein the optical system has a lens surface positioned nearest to object and a lens surface positioned nearest to image, and includes in order from the object side, a first lens having a negative refractive power, a second lens having a positive refractive power, a third lens having a positive refractive power, and a fourth lens, and an object-side surface of the second lens has a shape which is convex toward the object side, and the following conditional expressions (1), (2), and (A) are satisfied: αmax−αmin
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