Ophthalmologic apparatus
US11503995B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2020 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | Nov 3, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/152
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ophthalmologic apparatus includes: 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; and a corneal measurement optical system having an imaging element that takes an image of a corneal reflection light, which is a reflection of the illumination light, through the objective lens, and outputs an imaging signal. The corneal measurement optical system includes a first mirror arranged near the objective lens and a second mirror arranged near the imaging element. The first and second mirrors and are configured such that the corneal reflection light that enters and is reflected from the first mirror, and then enters and is reflected from the second mirror exits toward an incident side from which the corneal reflection light enters a reflection surface of the first mirror.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.