Patent · US Active

Method for determining an ophthalmic lens comprising an aspherical continuous layer on one of its faces and an aspherical Fresnel layer on one of its faces

US10036898B2 · kind B2 · utility

0Cited by

3References

15Claims

0Family size

Assignee

Essilor International · FR

Inventors

Sylvain Chene · Charenton-le-Pont, FR
Alain Goulet · Charenton-le-Pont, FR

Key dates

Filing date	Oct 18, 2013
Grant date	Jul 31, 2018
Priority date	—
Expiry date	Apr 7, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG02C2202/20
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Method for determining an ophthalmic lens which comprises an aspherical continuous layer and an aspherical Fresnel layer. The aspherical continuous layer is supported by one of the faces of the lens, the same holds for the aspherical Fresnel layer.

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