公开(公告)号：US20190212473A1

公开(公告)日：2019-07-11

申请号：US16323971

申请日：2017-08-09

Applicant: ESSILOR INTERNATIONAL

Inventor： Pierre FROMENTIN ,  Tipparat LERTWATTANASERI ,  Waranya PHOMPAN ,  Sanya HOKPUTSA

IPC: G02B1/04 ,  C08F220/14

CPC classification number: C09B67/0004 ,  B82Y30/00 ,  C08F2/44 ,  C08F120/14 ,  C08F212/08 ,  C08F220/14 ,  C08K3/22 ,  C08K5/005 ,  G02B1/04 ,  G02B1/041 ,  G03C1/685 ,  C08L63/00 ,  C08L2666/70 ,  C08F2222/1013 ,  C08L33/12

Abstract: The present invention relates to an ophthalmic lens which efficiently absorbs light rays comprising a composition derived from a monomer or oligomer, a catalyst, at least one light-absorbing additive contained in nanoparticles which are dispersed in said monomer or oligomer.

公开(公告)号：US20210116604A1

公开(公告)日：2021-04-22

申请号：US17051863

申请日：2019-04-29

Applicant: Essilor International

Inventor： Pierre FROMENTIN ,  Armel JIMENEZ ,  Waranya PHOMPAN

IPC: G02B1/04 ,  G02C7/04 ,  C08G18/24 ,  C08G18/38

Abstract: The present invention relates to an optical material cutting blue light, comprising at least one UV absorber that at least partially blocks light having a wavelength ranging from 400 to 450 nm, at least one absorbing dye A having its maximum absorption wavelength in the range from 520 nm to 640 nm, the optical material being made of a material chosen from polythiourethane materials, polyurethane urea materials, materials resulting from the polymerization or copolymerization of polyepisulfide monomers or oligomers, and materials resulting from the polymerization or copolymerization of allylic monomers or oligomers, the optical material having a colorimetric coefficient b* as defined in the CIE (1976) L*a*b* international colorimetric system that is lower than or equal to 6, and a hue angle h higher than or equal to 120° and lower than or equal to 180°, for an optical material thickness of 2 mm.

公开(公告)号：US20240369740A1

公开(公告)日：2024-11-07

申请号：US18678726

申请日：2024-05-30

Applicant: ESSILOR INTERNATIONAL

Inventor： Pierre FROMENTIN ,  Tipparat LERTWATTANASERI ,  Waranya PHOMPAN

IPC: G02B1/04 ,  C08K3/36 ,  C09C1/30 ,  C09C3/08 ,  G02B5/22

Abstract: The invention relates to nanoparticles of a composite material comprising a light absorbing agent dispersed in a matrix of a mineral oxide, to a method for the preparation of such nanoparticles, to the use of said method to modify the hue of nanoparticles of composite material comprising a light absorbing agent, and to an ophthalmic lens comprising such nanoparticles.

公开(公告)号：US20210048559A1

公开(公告)日：2021-02-18

申请号：US16966938

申请日：2018-02-09

Applicant: ESSILOR INTERNATIONAL

Inventor： Pierre FROMENTIN ,  Tipparat LERTWATTANASERI ,  Waranya PHOMPAN

IPC: G02B1/04 ,  G02B5/22

Abstract: The invention relates to nanoparticles of a composite material comprising a light absorbing agent dispersed in a matrix of a mineral oxide, to a method for the preparation of such nanoparticles, to the use of said method to modify the hue of nanoparticles of composite material comprising a light absorbing agent, and to an ophthalmic lens comprising such nanoparticles.