公开(公告)号：US20240049962A1

公开(公告)日：2024-02-15

申请号：US18118132

申请日：2023-03-07

Applicant: Topcon Corporation

Inventor： Masashi NAKAJIMA ,  Ryosuke SHIMOSAWA ,  Shigeru OKIKAWA

IPC: A61B3/10 ,  A61B3/00

CPC classification number: A61B3/10 ,  A61B3/0025 ,  A61B3/0008

Abstract: An ophthalmic apparatus includes an objective lens, an illumination optical system, an imaging optical system, and an optical path coupling member. The illumination optical system may illuminate a subject's eye with illumination light via the objective lens. The imaging optical system may guide returning light of the illumination light from the subject's eye to an imaging device via the objective lens. The optical path coupling member has a transparent member with a reflective region formed by evaporating a reflective film onto a part of a transmission region of its surface, and is configured to couple an optical path of the illumination optical system with an optical path of the imaging optical system. The transmission region may be arranged substantially conjugate optically to a subject's iris. The illumination light is reflected on the reflective region and the returning light is transmitted through the transmission region.

公开(公告)号：US20230014194A1

公开(公告)日：2023-01-19

申请号：US17945138

申请日：2022-09-15

Applicant: Topcon Corporation

Inventor： Ryosuke SHIMOSAWA ,  Kazuhiro YAMADA ,  Masaya SUZUKI

IPC: A61B3/14 ,  A61B3/00 ,  A61B3/12 ,  A61B3/113 ,  G06T7/00

Abstract: An ophthalmic apparatus includes an illumination optical system that generates slit-shaped illumination light using a first light source; an optical scanner that deflects the illumination light to a fundus of a subject's eye; an imaging optical system that captures light from the fundus using a rolling shutter method; an acquisition unit that acquires a fundus image of the subject's eye using light from a second light source; a flare determination unit that determines whether or not flare occurs by analyzing the fundus image; a controller that performs flare optimization control by controlling at least one of the first light source, the illumination optical system, the optical scanner, the imaging optical system, and the image sensor based on a first determination result obtained by the flare determination unit; and an image forming unit that forms an image of the fundus when the flare does not occur.