公开(公告)号：US10441137B2

公开(公告)日：2019-10-15

申请号：US15634109

申请日：2017-06-27

Applicant: OLYMPUS CORPORATION

Inventor： Yuichi Wataya ,  Akira Muramatsu ,  Yuki Nakayama

IPC: A61B1/00 ,  G02B23/24 ,  G02B7/02 ,  A61B1/05

Abstract: To provide an image pickup unit that can prevent axis deviation of a movable lens barrel and obtain high-quality picked-up image, a stopper member is positioned and fixed in a state in which the stopper member is abutted against an outer circumferential surface of a rear group lens barrel, movement of a movable lens barrel to a retraction side along a photographing optical axis is restricted by contact of a stopper section of the stopper member and an operation rod, and a movable lens is held in a position for realizing a second focal length.

公开(公告)号：US11717138B2

公开(公告)日：2023-08-08

申请号：US17152118

申请日：2021-01-19

Applicant: OLYMPUS CORPORATION

Inventor： Yuichi Wataya

IPC: A61B1/00 ,  A61B1/05

CPC classification number: A61B1/000095 ,  A61B1/00096 ,  A61B1/000096 ,  A61B1/00147 ,  A61B1/00163 ,  A61B1/00193 ,  A61B1/05 ,  A61B1/00188

Abstract: An imaging unit includes: a first lens group configured to form a first optical image; a second lens group configured to form a second optical image; an objective lens group having a first region and a second region; a single image sensor configured to generate an image signal; a first holding frame having a first holding hole and a second holding hole; a second holding frame configured to hold the objective lens group; and a third holding frame configured to hold the image sensor. A depth of field of a first optical system formed of the objective lens group and the first lens group is set so as to entirely include a depth of field of a second optical system formed of the objective lens group and the second lens group and to be deeper than the depth of field of the second optical system.

公开(公告)号：US20220413279A1

公开(公告)日：2022-12-29

申请号：US17902197

申请日：2022-09-02

Applicant: OLYMPUS CORPORATION

Inventor： Yuichi Wataya

IPC: G02B23/24 ,  G02B7/105 ,  G02B7/10

Abstract: An optical unit includes a fixed barrel configured to accommodate a moving barrel configured to hold an optical element configured to form an object image and formed of a nonmagnetic body to be able to advance and retract between a first position and a second position in a direction along an optical axis, a first magnet provided at the fixed barrel and configured to attract the moving barrel in a first direction along the optical axis to hold the moving barrel at the first position, a coil configured to attract the moving barrel in a second direction opposite to the first direction along the optical axis to hold the moving barrel at the second position by a magnetic field generated by being energized, and a second magnet provided at the moving barrel and configured to be attracted by the first magnet and the magnetic field of the coil.

公开(公告)号：US09872611B2

公开(公告)日：2018-01-23

申请号：US15633970

申请日：2017-06-27

Applicant: OLYMPUS CORPORATION

Inventor： Yuichi Wataya ,  Akira Muramatsu ,  Yukiharu Makino

IPC: G02B15/14 ,  A61B1/05 ,  A61B1/00 ,  H04N5/225

CPC classification number: A61B1/05 ,  A61B1/00096 ,  A61B1/0011 ,  A61B1/00163 ,  A61B1/00188 ,  A61B1/04 ,  G02B23/24 ,  H04N5/2254 ,  H04N5/2256

Abstract: An image pickup unit, includes: a front group lens frame holding a front group lens; a rear group lens frame fitted to the front group lens frame and holding a rear group lens; a movable frame disposed to be movable forward and backward in a direction along a photographing optical axis within the rear group lens frame, and holding a movable lens; an adhesive bonding the front group lens frame to the rear group lens frame; and an adhesive outflow preventing portion preventing the adhesive from flowing out toward the movable frame side when the front group lens frame is bonded and fitted to the rear group lens frame.

公开(公告)号：US10271718B2

公开(公告)日：2019-04-30

申请号：US15609096

申请日：2017-05-31

Applicant: OLYMPUS CORPORATION

Inventor： Yuichi Wataya ,  Akira Muramatsu

IPC: A61B1/00 ,  A61B1/04 ,  G02B23/26 ,  A61B1/05 ,  G02B23/24

Abstract: An image pickup unit includes: a focus switching type observation optical system including fixed lenses and a moving lens; fixed frames that hold the fixed lenses; a moving frame that is arranged to be movable back and forth in a direction along a photographing optical axis of the observation optical system and holds the moving lens; and a correction frame fixed in the fixed frames, configured to house the moving frame such that the moving frame can advance and retract, including a stopper that abuts the moving frame to restrict movement in one direction of the photographing optical axis, and being slightly adjustable to realize one of focal lengths of the observation optical system.

公开(公告)号：US10191271B2

公开(公告)日：2019-01-29

申请号：US15455213

申请日：2017-03-10

Applicant: OLYMPUS CORPORATION

Inventor： Yuichi Wataya ,  Hirohiko Matsuzawa ,  Masahiro Kawauchi

IPC: G02B23/24 ,  A61B1/00 ,  A61B1/04 ,  A61B1/06 ,  H04N5/347 ,  H04N5/378 ,  H04N9/04 ,  H04N9/07 ,  H04N5/225 ,  H04N5/235

Abstract: An image pickup system includes a light source apparatus, an objective optical system, an image pickup device, a judging portion configured to judge: an object is observed in which of a distant view and a near view, and an image pickup control portion configured to set a reading mode of the image pickup device according to a judgment result of the judging portion. The light source apparatus is capable of sequentially emitting red light, green light and blue light. The image pickup control portion sets a single pixel reading mode when that the object is observed in the distant view is judged, and blue light is emitted from the light source apparatus, and sets to a pixel addition reading mode when that the object is observed in the distant view is judged, and red light is emitted from the optical apparatus.

公开(公告)号：US09661997B2

公开(公告)日：2017-05-30

申请号：US15041154

申请日：2016-02-11

Applicant: OLYMPUS CORPORATION

Inventor： Yuichi Wataya

IPC: A61B1/05 ,  A61B1/00 ,  A61B1/018

CPC classification number: A61B1/05 ,  A61B1/00009 ,  A61B1/00087 ,  A61B1/00096 ,  A61B1/00163 ,  A61B1/018 ,  A61B1/051

Abstract: An endoscope includes an image pickup unit and a treatment instrument channel. The image pickup unit and the treatment instrument channel are adjacent to each other. The image pickup unit includes an objective lens and an image pickup device. In a pixel formation region of the image pickup unit, a segmentation region is set as a region read out as a region for displaying a video. A center of the segmentation region is disposed to be shifted from a center of the pixel formation region toward the treatment instrument channel. An optical axis of the objective lens is parallel to a center axis of the treatment instrument channel. The center of the segmentation region is located on the optical axis.