公开(公告)号：US20170290497A1

公开(公告)日：2017-10-12

申请号：US15634109

申请日：2017-06-27

Applicant: OLYMPUS CORPORATION

Inventor： Yuichi WATAYA ,  Akira MURAMATSU ,  Yuki Nakayama

IPC: A61B1/05 ,  G02B7/02

CPC classification number: A61B1/00096 ,  A61B1/00 ,  A61B1/00188 ,  A61B1/05 ,  G02B7/02 ,  G02B23/2423 ,  G02B23/243 ,  G02B23/2438 ,  G02B23/2476

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：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：US20230418045A1

公开(公告)日：2023-12-28

申请号：US18243471

申请日：2023-09-07

Applicant: OLYMPUS CORPORATION

Inventor： Koichi Shiotani ,  Takahiko Mitani ,  Yuki Nakayama

IPC: G02B23/24

CPC classification number: G02B23/2484 ,  G02B23/243

Abstract: An endoscope imaging unit includes: an objective lens including a first lens and a second lens; an imaging element configured to capture an image formed by the objective lens; a first lens frame configured to hold the first lens, the first lens frame including a lens barrel that holds the first lens and a flange portion that extends outward from an outer peripheral portion of the lens barrel; a second lens frame that is fixed to the first lens frame and holds the second lens; and a holder that accommodates at least part of the first lens frame and the second lens frame therein and holds the outer peripheral surface of the flange portion of the first lens frame; wherein the flange portion is fixed to the holder on a side surface thereof in an extending direction.