公开(公告)号：US20180364466A1

公开(公告)日：2018-12-20

申请号：US16006543

申请日：2018-06-12

Applicant: OLYMPUS CORPORATION

Inventor： Kenichiro ABE ,  Masaru KOBAYASHI ,  Kazuhiko YAMANOUCHI ,  Toru KANEDA ,  Masaki AKAHANE

IPC: G02B21/02 ,  G02B9/64

Abstract: An objective includes a first lens group that has a positive refractive power and a second lens group that has a negative refractive power. The objective satisfies conditional expressions below. 0.2≤NAob≤1  (1) 2.9 mm≤D0×NAob≤30 mm  (2) 30 mm≤L≤70 mm  (3) 0.0001≤RMSh/λh≤0.035  (4) NAob is a numerical aperture on an object side of the objective. D0 is a distance on an optical axis between an object plane and a lens surface of the objective that is situated closest to the object side. L is a distance on the optical axis between the object plane and a lens surface of the objective that is situated closest to the image side. RMSh is an axial RMS wave aberration with respect to the h line. λh is a wavelength of the h line.

公开(公告)号：US20180045940A1

公开(公告)日：2018-02-15

申请号：US15673384

申请日：2017-08-09

Applicant: OLYMPUS CORPORATION

Inventor： Shintaro KOBAYASHI ,  Hironori UTSUGI ,  Masayoshi KARASAWA ,  Masaru KOBAYASHI

IPC: G02B21/02 ,  G02B21/26 ,  G02B21/36 ,  G02B5/22 ,  G02B21/08 ,  G02B7/02 ,  G02B27/14

CPC classification number: G02B21/02 ,  G02B5/22 ,  G02B7/02 ,  G02B21/088 ,  G02B21/20 ,  G02B21/26 ,  G02B21/361 ,  G02B27/141

Abstract: A microscope includes: a main body having: a base portion; a pillar portion vertically disposed on part of an outer edge portion of the base portion; and an arm portion extending from an end of the pillar portion to face the base portion, an opposite end of the pillar portion connecting to the base portion; an objective lens support portion provided on one side of the arm portion facing the base portion and configured to hold an objective lens that is detachable from the objective lens support portion; an observation portion provided on an opposite side of the arm portion and configured to hold an eyepiece that is detachable from the observation portion; and an optical unit configured to hold an optical element. The arm portion includes a holding portion configured to hold the optical unit at a position intersecting with an optical axis of the objective lens.

公开(公告)号：US20170090175A1

公开(公告)日：2017-03-30

申请号：US15270712

申请日：2016-09-20

Applicant: OLYMPUS CORPORATION

Inventor： Masaru KOBAYASHI

IPC: G02B21/24 ,  G02B7/28 ,  G02B5/00

CPC classification number: G02B21/245 ,  G02B5/005 ,  G02B7/287 ,  G02B21/0088 ,  G02B21/02 ,  G02B21/082 ,  G02B27/141 ,  G02B27/283

Abstract: A microscope apparatus includes an objective and an automatic focusing device. The automatic focusing device is an automatic focusing device of an active type that irradiates a specimen with automatic focusing light via the objective, and the automatic focusing device is configured in such away that an illumination light axis of the automatic focusing light passes through a position distant from an optical axis of the objective.