公开(公告)号：US20190258836A1

公开(公告)日：2019-08-22

申请号：US16330955

申请日：2017-09-07

Applicant: ESSILOR INTERNATIONAL

Inventor： Sébastien MAURICE ,  Christophe HUBERT ,  Stéphane AUFFRAY ,  Daniel FERREIRA

IPC: G06K7/10 ,  G02C7/02 ,  G06K7/14

Abstract: A spectacle lens includes a substrate and an anti-reflection or mirror interference coating covering the substrate on the side of the front face, the interference coating forming a one-dimensional or two-dimensional bar code pattern, the marking being formed by a plurality of point holes on a portion of a thickness of the interference coating, the front face having, away from the point holes, a coefficient of reflection of light having a predetermined nominal value and, in each the point hole, a coefficient of reflection of light having a particular predetermined value that is different from the nominal value.