Invention Grant
- Patent Title: Optical article comprising a substrate with embedded particles for light transmission enhancement
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Application No.: US16637588Application Date: 2018-08-08
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Publication No.: US11852784B2Publication Date: 2023-12-26
- Inventor: Pierre Fromentin , Hélène Maury , Francisco De Ayguavives , Thanisararat Saleesung
- 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: EP 306061 2017.08.09
- International Application: PCT/EP2018/071469 2018.08.08
- International Announcement: WO2019/030263A 2019.02.14
- Date entered country: 2020-02-07
- Main IPC: G02B1/111
- IPC: G02B1/111 ; G03B21/625
Abstract:
The invention relates to an optical article having a substrate made of an optical material comprising a polymer matrix and an improved light transmission in the visible range. The substrate comprises an external layer in which particles are embedded into the polymer matrix, the refractive index of the particles Rp being lower than the refractive index of the polymer matrix Rs.
Public/Granted literature
- US20200183053A1 Optical Article Comprising a Substrate with Embedded Particles for Light Transmission Enchancement Public/Granted day:2020-06-11
Information query
