Eye-examining apparatus in which visible-optical channel and infrared-optical channel are integrated
US10918282B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2018 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Mar 11, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0233
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An eye-examining apparatus in which a visible light optical system for observing a shape of an examinee's eye and an infrared optical system for detecting a shape of the cornea of the examinee's eye are integrated. The eye-examining apparatus having an integrated optical system comprises: an infrared light source for irradiating a cornea of the examinee's eye with infrared light; a visible light source for irradiating the eye with visible light; an image detector both for detecting an image of the infrared light which is irradiated from the infrared light source and reflected from the cornea of the eye and for detecting an image of the visible light which is irradiated from the visible light source to the eye; and a visible light blocking filter inserted in an optical path of the visible light and the infrared light traveling toward the image detector for blocking the visible light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.