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公开(公告)号：US20210096351A1
公开(公告)日：2021-04-01
申请号：US17109530
申请日：2020-12-02
Applicant: OLYMPUS CORPORATION
Inventor： Masakazu MIZOGUCHI , Yasushi NAMII
IPC: G02B23/24
Abstract: An endoscope processor includes: an acquisition circuit configured to acquire display size information on a display that is connected to the endoscope processor; a display condition setting circuit configured to set, according to the acquired display size information and properties of an imager of an endoscope that is connected to the endoscope processor, a monitor shift value representing an amount of shift between a first image and a second image corresponding to first image data and second image data, respectively, the first image data and the second image data each having parallax with respect to a same subject; and an image processor configured to shift the first image and the second image to generate display image data to be output to the display using the set monitor shift value.
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公开(公告)号：US20160338576A1
公开(公告)日：2016-11-24
申请号：US15225892
申请日：2016-08-02
Applicant: OLYMPUS CORPORATION
Inventor： Yasushi NAMII , Ikutoshi FUKUSHIMA
CPC classification number: A61B1/00193 , A61B1/00096 , G02B13/04 , G02B23/2415 , G02B23/243 , G02B23/26
Abstract: Provided is a small endoscope objective optical system that allows stereoscopic viewing even though a wide angle is used, that reduces the F-number, and that also reduces vignetting.Provided. is an endoscope objective optical system that consists of, sequentially from the object side, a negative first lens group, a positive second lens group, and a pair of third lens groups that are disposed side-by-side in the direction of parallax and that form two optical images with parallax, wherein aperture stops are individually provided in the third lens groups, and conditional expression M below is satisfied: Fob_n/Fob_p>−0.5 (1), where Fob_n is a focal length of the first lens group, and Fob_p is a focal length of the second lens group.
Abstract translation: 其中Fob_n是第一透镜组的焦距，Fob_p是第二透镜组的焦距。
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公开(公告)号：US20230200627A1
公开(公告)日：2023-06-29
申请号：US18171740
申请日：2023-02-21
Applicant: OLYMPUS CORPORATION
Inventor： Yasushi NAMII
CPC classification number: A61B1/00096 , A61B1/046
Abstract: An objective optical system includes a predetermined lens disposed near the pupil of the objective optical system. The predetermined lens has a first refractive region including an optical axis and a second refractive region located outside the first refractive region. The refractive power of the second refractive region is greater than the refractive power of the first refractive region. A light beam reaching an image plane includes a first light beam and a second light beam. The first light beam is a light beam transmitted through the first refractive region and includes at least one of a beam of white light and a beam of near-infrared light. The second light beam is a light beam transmitted through the second refractive region and includes only the beam of near-infrared light. A predetermined conditional expression (1) is satisfied.
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公开(公告)号：US20180231749A1
公开(公告)日：2018-08-16
申请号：US15950393
申请日：2018-04-11
Applicant: OLYMPUS CORPORATION
Inventor： Yasushi NAMII , Tsutomu SASAMOTO
CPC classification number: G02B13/18 , A61B1/00163 , G02B9/62 , G02B13/0045 , G02B13/04 , G02B23/2415 , G02B23/243
Abstract: An objective optical system for endoscope includes a first group having a negative refractive power, an aperture stop, and a second group having a positive refractive power. The first group includes a negative meniscus lens having a convex surface directed toward the object side, and a positive lens having a convex surface directed toward the object side. The second group includes a predetermined lens, a positive cemented lens, and a positive single lens, or includes the predetermined lens, the positive single lens, and a positive cemented lens. The predetermined lens is a meniscus lens having a convex surface directed toward an image side. and an image-side lens, and the following conditional expressions (1′), (2), and (4′) are satisfied: 0.7
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