Invention Grant
- Patent Title: Ophthalmic lens that can be edged, comprising a hydrophobic bilayer and a temporary metal fluoride layer
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Application No.: US14655904Application Date: 2013-12-16
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Publication No.: US09658467B2Publication Date: 2017-05-23
- Inventor: Gregory Hervieu , Christophe Valenti
- Applicant: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
- Applicant Address: FR Charenton le Pont
- Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
- Current Assignee: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
- Current Assignee Address: FR Charenton le Pont
- Agency: Young & Thompson
- Priority: FR1262953 20121228
- International Application: PCT/FR2013/053104 WO 20131216
- International Announcement: WO2014/102481 WO 20140703
- Main IPC: G02B1/12
- IPC: G02B1/12 ; G02C7/02 ; G02B1/18 ; G02B1/04

Abstract:
An ophthalmic lens that can be edged, includes a main front surface and a main rear surface, obtained by successive deposition on at least one of the main surfaces of the lens, of a first hydrophobic layer that has a thickness of between 6 and 16 nm and is obtained by deposition of a composition including a constituent A selected from fluorosilanes having a number average molar mass that is higher than, or equal to, 2000 g/mol, of a second hydrophobic layer that has a thickness of between 3 and 20 nm and is obtained by the deposition of a composition including a constituent B selected from the fluorosilanes having a number average molar mass than is lower than, or equal to, 900 g/mol, and of a layer including a metal fluoride having a thickness of between 22 and 50 nm.
Public/Granted literature
- US20150338679A1 OPHTHALMIC LENS THAT CAN BE EDGED, COMPRISING A HYDROPHOBIC BILAYER AND A TEMPORARY METAL FLUORIDE LAYER Public/Granted day:2015-11-26
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