The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 30, 2021
Filed:
Apr. 10, 2020
Topcon Corporation, Tokyo, JP;
Zhenguo Wang, Ridgewood, NJ (US);
Zaixing Mao, Tokyo, JP;
Hideharu Suzuki, Tokyo, JP;
Kazuhiro Oomori, Tokyo, JP;
Makoto Fujino, Tokyo, JP;
Topcon Corporation, Tokyo, JP;
Abstract
An ophthalmologic apparatus includes: an ophthalmologic apparatus body having: an objective lens that faces a subject's eye; a first illumination optical system that irradiates a cornea of the subject's eye with illumination light emitted from a first illumination light source along an optical axis overlapping an optical axis center of the objective lens; an interference image capturing camera that takes an image of a corneal reflection light through the objective lens and outputs an imaging signal; and a calculation unit that calculates, based on a corneal reflection image, of a corneal reflection light, input from the interference image capturing camera, a thickness of a tear fluid film at each position on the corneal surface; and a guide rail that supports the ophthalmologic apparatus body. The guide rail supports the ophthalmologic apparatus body in a rotatable manner such that an optical axis center of the objective lens is positioned obliquely with respect to a horizontal direction orthogonal to a gravity direction.