Patent · US Active

System and method for demonstrating an optical disorder

US11810468B2 · kind B2 · utility

0Cited by

13References

6Claims

0Family size

Assignee

Essilor International · FR

Inventors

Gabriel Keita · Dallas, US
John M. Guerra · Concord, US

Key dates

Filing date	Jan 17, 2020
Grant date	Nov 7, 2023
Priority date	—
Expiry date	Nov 7, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG02C7/066
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A method for demonstrating an optical disorder includes providing two ophthalmic lenses in a first position relative to each other. Each lens includes a first vision zone and a second vision zone. The first vision zone includes a distance vision zone having a distance vision reference point and a power of between about −1.00 Diopters and −4.00 Diopters. The second vision zone includes a near vision zone having a near vision reference point and a power of between about +1.00 Diopters and about +4.00 Diopters. Each lens includes an Add power of between +2.00 Diopters and +3.25 Diopters; the ophthalmic lenses are repositioned to a second position relative to each other, so the distance vision zone of each lens is viewable by a wearer through the near vision zone and the near vision zone of each lens is viewable by a wearer through the distance vision zone.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.