Apparatus and method for screening for defects in the sight and for measuring the visual acuity of a user
US10194795B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2014 |
| Grant date | Feb 5, 2019 |
| Priority date | — |
| Expiry date | Jun 28, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/741
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A binocular optoelectronic apparatus for screening defects in the sight and for measuring the visual acuity of a user, includes a casing having a right-hand first aperture and a left-hand first aperture, which apertures are intended to be placed facing the right eye and the left eye of a user facing in a first gaze direction, respectively. This apparatus includes: a touchscreen placed so that a first zone of the touchscreen is located in the interior of the casing and a second zone of the touchscreen is accessible from the exterior of the casing; electronic elements suitable for displaying a plurality of optotypes on a first portion of the first zone; and an optical system configured to form a right-hand first image of the first portion of the first zone in the direction of the first right-hand aperture at a first vision distance along a first optical path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.