公开(公告)号：US20180084991A1

公开(公告)日：2018-03-29

申请号：US15670234

申请日：2017-08-07

Applicant: TOPCON CORPORATION

Inventor： Masahiro SHIBUTANI ,  Ryoichi HIROSE ,  Toshihiro MINO

IPC: A61B3/10 ,  A61B3/00 ,  A61B3/15

CPC classification number: A61B3/102 ,  A61B3/0025 ,  A61B3/0033 ,  A61B3/152

Abstract: An optical coherence tomography (OCT) apparatus according to an embodiment is configured to split light from a light source into measurement light and reference light, project the measurement light on an object, and detect interference light generated from the reference light and the measurement light returning from the object. The OCT apparatus includes a dispersion unit and an information generation unit. The dispersion unit is configured to relatively change a dispersion characteristic of a measurement optical path which is an optical path of the measurement light and a dispersion characteristic of a reference optical path which is an optical path of the reference light, according to an operation mode corresponding to a depth range. The information generation unit is configured to generate information on the object according to the operation mode, based on a detection result of the interference light.

公开(公告)号：US20200015675A1

公开(公告)日：2020-01-16

申请号：US16583319

申请日：2019-09-26

Applicant: TOPCON CORPORATION

Inventor： Masahiro SHIBUTANI ,  Tatsuo YAMAGUCHI ,  Toshihiro MINO ,  Ryoichi HIROSE

IPC: A61B3/12 ,  A61B3/14 ,  A61B3/10

Abstract: An ophthalmologic apparatus includes an SLO system, a projection system, a first image former, a second image former, a displacement processor, and a controller. The SLO system is configured to scan a target eye with first light deflected by an first optical scanner. The projection system is configured to project second light deflected by an second optical scanner onto the target eye. The first image former is configured to form a first image of the target eye based on a scan result of a first scan region using the first optical scanner. The second image former is configured to form a second image of the target eye based on a scan result of a second scan region using the first optical scanner, the second scan region being narrower than the first scan region. The displacement processor is configured to calculate a displacement between a partial image in the first image and the second image, the partial image corresponding to the second image. The controller is configured to control the second optical scanner based on the displacement.