Patent · US Active

Multi-tint colored ophthalmic lenses for the short-sighted

US7971996B2 · kind B2 · utility

1Cited by

6References

7Claims

0Family size

Assignee

Essilor International (Compagnie Generale d'Optique) · FR

Inventors

Björn Drobe · Singapore, SG
Guillaume Giraudet · Charenton-le-Pont, FR

Key dates

Filing date	Nov 15, 2007
Grant date	Jul 5, 2011
Priority date	—
Expiry date	Dec 6, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG02C2202/24
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The present invention relates to an ophthalmic lens, having, on its surface, a colorless or yellow, central first zone and at least one peripheral second zone, selectively transmitting visible light having a wavelength of less than 570 nm.

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