公开(公告)号：WO2020071140A1

公开(公告)日：2020-04-09

申请号：PCT/JP2019/036764

申请日：2019-09-19

Applicant: TOPCON CORPORATION

Inventor： FUKUMA, Yasufumi ,  SUZUKI, Hideharu ,  OOMORI, Kazuhiro ,  WANG, Zhenguo ,  FUJINO, Makoto

IPC: A61B3/10 ,  A61F9/007

Abstract: Provided are an ophthalmologic device and a method of operation thereof which make it possible to correctly determine the state of the tear film on the corneal surface of the subject's eye regardless of the corneal shape of the subject's eye. The ophthalmologic device includes: an objective lens; an illuminating optical system configured to irradiate a cornea of a subject's eye with illumination light through the objective lens; an incident angle changing mechanism configured to change an incident angle of the illumination light incident to the cornea from the objective lens; an imaging optical system configured to output an image signal by capturing corneal reflection light of the illumination light entering through the objective lens; a regular reflection determination unit configured to, according to the image signal outputted from the imaging optical system, determine whether the corneal reflection light is regular reflection light that is regularly reflected by the cornea; an adjustment control unit configured to, when the regular reflection determination unit determines that the corneal reflection light is not the regular reflection light, adjust the incident angle to an angle at which the corneal reflection light is the regular reflection light by driving the incident angle changing mechanism according to the image signal; an imaging control unit configured to cause the imaging optical system to capture the regular reflection light; and a state determination unit configured to determine a state of a tear film of the subject's eye according to a corneal reflection image based on the image signal of the regular reflection light outputted from the imaging optical system.

公开(公告)号：EP3808250A1

公开(公告)日：2021-04-21

申请号：EP19818732.0

申请日：2019-06-12

Applicant: TOPCON CORPORATION

Inventor： OOMORI, Kazuhiro ,  FUKUMA, Yasufumi ,  SHIMIZU, Hitoshi

IPC: A61B3/135

Abstract: A slit lamp microscope according to an exemplary embodiment comprises an illumination system, an imaging system, and a movement mechanism. The illumination system emits slit light to the anterior segment of an eye being examined. The imaging system comprises: an optical system that guides light from the anterior segment which is being irradiated with the slit light; and an imaging element that receives the light guided by the optical system on an imaging plane. The movement mechanism moves the illumination system and the imaging system. An object plane along the optical axis of the illumination system and the imaging plane of the optical system satisfy the Scheimpflug principle. The imaging system repeatedly images the anterior eye segment to acquire a plurality of images thereof while the illumination system and imaging system are moved by the movement mechanism.

公开(公告)号：EP3620104A1

公开(公告)日：2020-03-11

申请号：EP18794987.0

申请日：2018-05-02

Applicant: Topcon Corporation

Inventor： FUKUMA, Yasufumi ,  OOMORI, Kazuhiro

IPC: A61B3/10 ,  A61B3/13

Abstract: The object of the present invention is to develop an ophthalmologic microscope of a new method that increases the degree of freedom in the optical design in the Galilean ophthalmologic microscope provided with an OCT optical system. The present invention provides an ophthalmologic microscope 1 comprising; an illuminating optical system 300, an observation optical system 400; an objective lens 2; and an OCT optical system 500, characterized in that the optical axis O-500 of the OCT optical system does not penetrate through the objective lens 2, it comprises objective lens for OCT 507 through which the optical axis O-500 of the OCT optical system penetrates, and deflection optical elements 503a, 503b for scanning of the OCT optical system and the objective lens for OCT 507 are in a substantially optically conjugate positional relation.

公开(公告)号：EP3636137A1

公开(公告)日：2020-04-15

申请号：EP18806499.2

申请日：2018-05-24

Applicant: Topcon Corporation

Inventor： FUKUMA, Yasufumi ,  OOMORI, Kazuhiro

IPC: A61B3/10 ,  A61B3/13

Abstract: The object of the present invention is to develop an ophthalmologic microscope of a new method that increases the degree of freedom in the optical design in the Galilean ophthalmologic microscope provided with an OCT optical system. The present invention provides an ophthalmologic microscope 1, wherein an observation optical system 400, an objective lens 2, and an OCT optical system 500 are placed in such a way that the optical axis of the OCT optical system 0-500 does not penetrate through objective lens 2, and the optical axis of the observation optical system O-400 and the optical axis of the OCT optical system O-500 are non-coaxial, and wherein the ophthalmologic microscope further comprises a SLO optical system 1500 that scans a light ray which is a visible ray, a near infrared ray, or an infrared ray and guides the light to the subject's eye so as to become substantially coaxial with the optical axis of the OCT optical system O-500.

公开(公告)号：EP3888527A1

公开(公告)日：2021-10-06

申请号：EP19888349.8

申请日：2019-11-27

Applicant: TOPCON CORPORATION

Inventor： FUKUMA, Yasufumi ,  SUZUKI, Hideharu ,  WANG, Zhenguo ,  OOMORI, Kazuhiro ,  FUJINO, Makoto

IPC: A61B3/10 ,  A61B3/107

Abstract: The ophthalmological device according to several exemplary embodiments includes an illumination system, an interference photography system, an anterior eye part photography system, a first optical path coupling element, and a control part. The illumination system projects illumination light that has been outputted from a light source onto an anterior eye part of an examined eye. The interference photography system is configured to photograph an interference pattern that is formed on the cornea by the illumination light. The anterior eye part photography system is configured to photograph the anterior eye part onto which the illumination light is being projected. The first optical path coupling element couples the optical path of the interference photography system and the optical path of the anterior eye part photography system. The control part superimposes an interference image that has been acquired by the interference photography system onto an anterior eye part image that has been acquired by the anterior eye part photography system and makes a display part display the superimposed images.