公开(公告)号：US20150272435A1

公开(公告)日：2015-10-01

申请号：US14671446

申请日：2015-03-27

Applicant: NIDEK CO., LTD.

Inventor： Koichi ITO ,  Naoto HONDA

IPC: A61B3/10 ,  A61B3/12 ,  A61B3/14

CPC classification number: A61B3/102 ,  A61B3/12 ,  A61B3/14

Abstract: A fundus photography device includes: a fundus illumination optical system that illuminates a fundus of an eye by illumination light; a fundus photography optical system; an OCT optical system; an anterior chamber observation optical system for observing an anterior chamber observation image of the eye illuminated by the anterior chamber illumination light source; a first wavelength separation member that sets a first optical axis commonly shared by the fundus illumination optical system and the fundus photography optical system to be coaxial with a second optical axis commonly shared by the OCT optical system and an anterior chamber observation optical system; and a second wavelength separation member that forms the second optical axis by setting an optical axis of the OCT optical system to be coaxial with an optical axis of the anterior chamber observation optical system.

Abstract translation: 眼底摄影装置包括：通过照明光照射眼底的眼底照明光学系统; 眼底摄影光学系统; OCT光学系统; 前房观察光学系统，用于观察由前房照明光源照射的眼睛的前房观察图像; 第一波长分离部件，其将通过所述眼底照明光学系统和所述眼底摄影光学系统共用的第一光轴设定为与所述OCT光学系统和前房观察光学系统共用的第二光轴同轴; 以及第二波长分离部件，其通过将OCT光学系统的光轴设置为与前房观察光学系统的光轴同轴而形成第二光轴。

公开(公告)号：US20210093187A1

公开(公告)日：2021-04-01

申请号：US17035910

申请日：2020-09-29

Applicant: NIDEK CO., LTD.

Inventor： Koichi ITO

IPC: A61B3/10 ,  A61B3/00

Abstract: An ophthalmologic imaging apparatus includes: an OCT optical system for acquiring OCT data of a tissue of a subject eye based on a spectral interference signal of measurement light emitted to the tissue and reference light; a second optical system for acquiring a front image of the tissue; an optical element having asymmetry and being arranged on a common optical path of the OCT optical system and the second optical system; and arithmetic controller configured to associate an OCT data acquisition position with coordinates of the front image while taking at least a difference in distortion caused by the optical element between the OCT optical system and the second optical system into consideration.

公开(公告)号：US20190038127A1

公开(公告)日：2019-02-07

申请号：US16052017

申请日：2018-08-01

Applicant: NIDEK CO., LTD.

Inventor： Koichi ITO

IPC: A61B3/10 ,  A61B3/12 ,  A61B3/00

CPC classification number: A61B3/102 ,  A61B3/0025 ,  A61B3/12

Abstract: An OCT apparatus includes an OCT optical system, a processor that processes a signal from the OCT optical system, and a light guiding optical system disposed on a measurement light path of the OCT optical system. The light guiding optical system forms a pivot point, at which a measurement light turns based on motion of an optical scanner deflecting the measurement light, in an anterior portion of a subject eye, and guides the measurement light passed through the pivot point to a fundus. The OCT optical system includes a compensation unit that compensates for an amount of change in a light path length of the measurement light path between a state in which an angle-of-view switching optical system is inserted and a state in which the angle-of-view switching optical system is retracted.

公开(公告)号：US20170303782A1

公开(公告)日：2017-10-26

申请号：US15644073

申请日：2017-07-07

Applicant: NIDEK CO., LTD.

Inventor： Koichi ITO ,  Naoto HONDA

IPC: A61B3/10 ,  A61B3/14 ,  A61B3/12

CPC classification number: A61B3/102 ,  A61B3/12 ,  A61B3/14

Abstract: A fundus photography device includes: a fundus illumination optical system that illuminates a fundus of an eye by illumination light; a fundus photography optical system; an OCT optical system; an anterior chamber observation optical system for observing an anterior chamber observation image of the eye illuminated by the anterior chamber illumination light source; a first wavelength separation member that sets a first optical axis commonly shared by the fundus illumination optical system and the fundus photography optical system to be coaxial with a second optical axis commonly shared by the OCT optical system and an anterior chamber observation optical system; and a second wavelength separation member that forms the second optical axis by setting an optical axis of the OCT optical system to be coaxial with an optical axis of the anterior chamber observation optical system.