Invention Grant
- Patent Title: Hard multi-coat on optical article
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Application No.: US16062780Application Date: 2016-12-16
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Publication No.: US10705260B2Publication Date: 2020-07-07
- Inventor: William Eagerton
- Applicant: ESSILOR INTERNATIONAL
- Applicant Address: FR Charenton-le-Pont
- Assignee: Essilor International
- Current Assignee: Essilor International
- Current Assignee Address: FR Charenton-le-Pont
- Agency: Norton Rose Fulbright US LLP
- International Application: PCT/EP2016/081533 WO 20161216
- International Announcement: WO2017/103177 WO 20170622
- Main IPC: G02B1/14
- IPC: G02B1/14 ; G02C1/00 ; C01B32/158 ; B05D1/18 ; B05D3/12

Abstract:
An optical device and method for manufacturing the optical device is provided. The optical device comprises an optical article having a substrate, a primer layer, and a hard multi-coat (HMC). The HMC comprises at least one layer. At least one of the layers, the substrate, and the HMC comprises at least one carbon allotrope that is absorbed by diffusion. The method of manufacturing involves combining and organic solvent and deionized water to form a solution, mixing into the solution at least one carbon allotrope, applying sonication to the solution an optical article comprising at least one of a substrate, a primer layer on the substrate, and a HMC, immersing and then withdrawing the optical article from the solution, withdrawing the optical article from the solution, and evaporating excess liquid from the solution.
Public/Granted literature
- US20190227196A1 HARD MULTI-COAT ON OPTICAL ARTICLE Public/Granted day:2019-07-25
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