Electrically-controlled optical device with a front shell

US12072559B2 · kind B2 · utility

Assignee

• Essilor International · FR

Inventors

• Hélène GUILLOU · Charenton-le-Pont, FR
• Claudine Biver · Charenton-le-Pont, FR
• Sira UHALTE NOGUES · Charenton-le-Pont, FR
• David Escaich · Charenton-le-Pont, FR
• Masaaki Imura · Tokyo, JP

Key dates

• Filing date: Jun 7, 2019
• Grant date: Aug 27, 2024
• Expiry date: Sep 25, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G02C2202/16
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An electrically-controlled optical device intended to be placed in front of a user's eye, the electrically-controlled optical device being an ophthalmic device, the electrically-controlled optical device comprising: a front shell defining a front surface and a back surface opposed to the front surface, the front shell comprising a slab, at least one functional layer arranged on the back surface and one primer layer, said primer layer being arranged between the at least one functional layer and the slab; and an electrically-controlled object facing the back surface of the front shell wherein the primer layer is conformed such that the electrically-controlled optical device is mechanically resistant to an impact energy of at least 200 mJ.