公开(公告)号：US20200333568A1

公开(公告)日：2020-10-22

申请号：US16922038

申请日：2020-07-07

Applicant: OLYMPUS CORPORATION

Inventor： Minoru NAKAMURA

IPC: G02B13/04 ,  G02B9/12 ,  G02B7/04 ,  A61B1/00

Abstract: An objective optical system includes in order from an object side to an image side, a first lens group having a negative refractive power, a second lens group, and a third lens group having a positive refractive power. At a time of focusing, the second lens group moves in an optical axial direction. The third lens group includes, from the object side to the image side, a front group and a rear group. The front group includes a cemented lens having a positive refractive power or includes a single lens having a positive refractive power. The rear group includes a cemented lens having a positive refractive power, and the following conditional expression (1) is satisfied: 0.45

公开(公告)号：US20160302647A1

公开(公告)日：2016-10-20

申请号：US15195664

申请日：2016-06-28

Applicant: OLYMPUS CORPORATION

Inventor： Tatsuya ORIHARA ,  Minoru NAKAMURA ,  Toru ISAKA ,  Tsutomu SASAMOTO

IPC: A61B1/00 ,  G02B23/24

CPC classification number: A61B1/00096 ,  A61B1/0011 ,  A61B1/00163 ,  A61B1/00188 ,  A61B1/051 ,  G02B23/2423 ,  G02B23/2484

Abstract: This endoscope imaging device is to improve focus adjustment accuracy between an imaging element and an objective lens. This endoscope imaging device has an objective lens unit frame holding objective lenses, and an imaging element supporting frame fitted onto an outer side of the objective lens unit and holding an imaging element. The lateral cross-sectional shape of a fitted portion of an outer surface of the objective lens unit frame and the lateral cross-sectional shape of a fitted portion of an inner surface of the imaging element supporting frame are different, and in the fitted portions, a contact portion where said two frames come into contact, and a gap portion where said two frames do not come into contact are formed, and also the objective lens unit frame and the imaging element supporting frame are cemented by a photosetting glue filled in the gap portion.

Abstract translation: 该内窥镜摄像装置用于改善摄像元件与物镜之间的焦点调整精度。 该内窥镜成像装置具有保持物镜的物镜单元框架和装配在物镜单元的外侧并保持摄像元件的摄像元件支撑框架。 物镜单元框架的外表面的嵌合部分的横截面形状和成像元件支撑框架的内表面的嵌合部分的横截面形状不同，并且在嵌合部分中， 形成所述两个框架接触的接触部分和所述两个框架不接触的间隙部分，并且物镜单元框架和成像元件支撑框架也通过填充在间隙中的光固化胶粘合 一部分。