Patent · US Active

Ophthalmic device with improved amplitude variation cell

US10466508B2 · kind B2 · utility

0Cited by

3References

10Claims

0Family size

Assignee

Essilor International · FR

Inventors

Jean-Paul Cano · Charenton-le-Pont, FR
Jerome Ballet · Charenton-le-Pont, FR
David Escaich · Charenton-le-Pont, FR
Stephane Perrot · Charenton-le-Pont, FR
Claudine Biver · Charenton-le-Pont, FR
Fabien BERIT DEBAT · Charenton-le-Pont, FR
Samuel Archambeau · Charenton-le-Pont, FR
Sylvie Vinsonneau · Charenton-le-Pont, FR

Key dates

Filing date	May 31, 2016
Grant date	Nov 5, 2019
Priority date	—
Expiry date	May 31, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG02F1/153
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The invention relates to an ophthalmic device including an electrically controllable amplitude variation cell, in particular an electrochromic transmission variation cell. More particularly, the cell (3) comprises a main convex surface on the front. This arrangement makes it possible for the cell to process a lateral luminous flux (RP), unlike cells in the prior art (1AA).

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