公开(公告)号：US20180194995A1

公开(公告)日：2018-07-12

申请号：US15742085

申请日：2016-07-06

Applicant: Essilor International

Inventor： Samuel ARCHAMBEAU ,  Claudine BIVER ,  Fabien BERIT-DEBAT ,  Stuart AIKEN ,  Christopher David GABBUTT ,  Bernard Mark HERON ,  Thomas David BROADBENT

IPC: C09K9/02 ,  C07D213/06 ,  C07D213/26 ,  C07D213/22 ,  G02F1/153

CPC classification number: C09K9/02 ,  C07D213/06 ,  C07D213/22 ,  C07D213/26 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1018 ,  G02F1/1503 ,  G02F1/1533 ,  G02F2202/02

Abstract: Electrochromic compounds and optical articles containing them The present invention relates to a group of novel electrochromic compounds. More specifically, it relates to electrochromic compounds comprising one or several pyridinium rings and the use of these compounds as a variable transmittance medium for the manufacture of an optical article, such as an ophthalmic lens.