Invention Grant
- Patent Title: Optical article provided in a form suitable for direct lamination; method for manufacturing an optical device
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Application No.: US15764424Application Date: 2016-09-27
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Publication No.: US11099299B2Publication Date: 2021-08-24
- Inventor: Eric Gacoin , Jeanne Marchal , Jonathan Saulny , Manuela De Sousa , Yohann Felten
- 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
- Priority: EP15306531 20150929
- International Application: PCT/EP2016/072956 WO 20160927
- International Announcement: WO2017/055265 WO 20170406
- Main IPC: B32B41/00
- IPC: B32B41/00 ; G02B1/04 ; B29D11/00

Abstract:
An optical article provided in a form suitable for simultaneous lamination of a pressure sensitive adhesive layer and of a thermoplastic film, the said optical article comprising a convex and a concave optical surface, wherein the convex and/or the concave optical surface is a receiving surface intended to receive the pressure sensitive adhesive on which the thermoplastic film is intended to be arranged and wherein the said receiving surface has an arithmetic average profile roughness greater or equal to 0.01 μm and less or equal to 0.3 μm and/or wherein the said receiving surface has a profile roughness root mean square slope greater or equal to 0.2° and less or equal to 1.2°. A method for manufacturing an optical device using said optical article.
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