公开(公告)号：US10563120B2

公开(公告)日：2020-02-18

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: C07D213/06 ,  C07D213/26 ,  C07D213/22 ,  C09K9/02 ,  G02F1/1503 ,  G02F1/153

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.

公开(公告)号：US10730855B2

公开(公告)日：2020-08-04

申请号：US16471050

申请日：2018-01-04

Applicant: Essilor International

Inventor： Claudine Biver ,  Fabien Berit-Debat ,  Samuel Archambeau ,  Christopher Gabbutt ,  Stuart Aiken ,  Bernard Mark Heron ,  Thomas David Broadbent

IPC: C07D401/14 ,  C09K9/02

Abstract: 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.