Essilor International (compagnie Generale D'optique)

Essilor International

Transitions Optical, Inc.

Ronald A Berzon

Aref Jallouli

Peiqi Jiang

Haipeng Zheng

Yassin Yusef Turshani

Gabriel Keita

Robert Alan Valeri

Hao-Wen Chiu

Leo Charles Collett

Steven Weber

Pierre Fromentin

John Biteau

Mathieu Feuillade

Xu Chen

Herbert Mosse

Chefik Habassi

Steve Weber

Hoa Thien Dang

Joey Oliveros Obordo

Daniel Darmes

Matthew James Lockwood

Gilles Richard

Tipparat Lertwattanaseri

Gary S Clark

Matthew Lockwood

Ronald Harmon

Eric Johnson

Thanisararat Saleesung

An ophthalmic lens including a substrate-independent adhesive primer for joining a functional element to a lens substrate. In particular, the ophthalmic lens includes at least one polymerized lens substrate including at least one thermoset monomer, a functional component including at least one thermoplastic layer, a surface of the at least one thermoplastic layer facing the polymerized lens substrate, and a primer coating deposited onto the surface of the at least one thermoplastic film facing the polymerized lens substrate.

Primer for ophthalmic lenses

Embodiments of the disclosure relate to primer compositions for increasing the adhesion between a polarizing film laminate to a cast-polymerized lens. The chemisorptive primers may react with cast-polymerized lens monomers and/or interact with the polarizing film laminate to provide exceptionally strong adhesion between the film laminate and the ophthalmic lens.

Primer for TAC film and laminate

An ophthalmic lens comprising a transparent polymer matrix and core shell nanoparticles which are dispersed in the transparent polymer matrix, wherein the core of core shell nanoparticles results from polymerization of a composition comprising nanoparticle core precursors and at least one photochromic compound, and the shell of core shell nanoparticles comprises a mineral compound.

Process for manufacturing light absorbing polymer matrix

Embodiments of the disclosure relate to a primer composition for increasing the adhesion of a polarizing film laminate to a cast-polymerized lens. The primer includes an acrylic polymer, polyurethane acrylate oligomer, a solvent, a UV curing agent, and a monomer which promotes adhesion to a cast-polymerized lens.

Adhesion primer for laminate in cast lenses

Antistatic laminate film structures comprising a transparent support structure and an antistatic (AS) layer comprising at least one antistatic component are described herein. The antistatic laminate film structures may comprise a cellulose triacetate support structure, a polyvinyl alcohol polarizing element, and an enhancing or neutral layer.

Antistatic film and lamination thereof

Embodiments of the disclosure relate to an antistatic film structure which comprises a transparent antistatic support structure and at least one antistatic component. The transparent antistatic support structure and antistatic component may be combined by imbibing, melt extruding, blown film extruding, calendaring, solvent casting, mold casting, wet transfer, sublimation, and solidification of a liquid to a solid using heat, UV or other means.

Structured film laminate with antistatic compositions embedded therein

Disclosed are systems and processes for generating a finished or semi-finished lens, such as a spectacle lens, from a lens blank that includes an intermediate functional layer. Some embodiments of the process involve locating the functional layer and positioning the lens blank according to the location of the functional layer. The location of the functional layer can be ascertained by measuring the thickness of one or more layers of the lens blank. The lens blank can be surfaced on one or both sides to form a finished or semi-finished lens. Other embodiments are also described.

Systems for and methods of surfacing a composite lens blank with functional layer

A polyurethane based adhesive containing one polyol compound derived from caprolactone monomer having a number average molecular weight between 200 and 1000 combined with a polyisocyanate compound. The functionality of the polycaprolactone polyol is between 1 and 4. Other aspects include a polarizing layered structure, a polarized lens and a method for manufacturing same all of which include the polyurethane based adhesive. The adhesive avoids delamination and is useful in optical applications where it will be in contact with water, for example during surfacing or edging process.

Polyurethane based adhesive for polarizing structure and polarized lens

An optical adhesive product and a process for manufacturing an optical adhesive product, laminated film ensembles, and laminated lenses. The optical adhesive product includes a glyoxal water solution that is pH adjusted for use as an optical adhesive that demonstrates a wet peel force strength above about 6 Newtons. A water based polymer, such as PVOH, may be added to the adhesive system. According to the process, the glyoxal adhesive system is manufactured and utilized to laminate TAC-PVA-TAC films together to form a polar film ensemble. The polar film ensemble is laminated to an optical substrate and in the case of an ophthalmic lens, surfaced, coated and edged. The optical adhesive product avoids film separation in the polar TAC-PAV-TAC film ensemble during edging.

Glyoxal adhesive system and process for manufacturing the same

An optical adhesive product and a process for manufacturing an optical adhesive product, including laminated film ensembles, and laminated lenses, are described. The optical adhesive product includes a glyoxal water solution that is pH adjusted for use as an optical adhesive that demonstrates a wet peel force strength above about 6 Newtons. A water-based polymer, such as PVOH, may be added to the adhesive system. According to the process, the adhesive system is manufactured and utilized to laminate TAC-PVA-TAC films together to form a polar film ensemble. The polar film ensemble is laminated to an optical substrate and, when forming an ophthalmic lens, surfaced, coated and edged. The optical adhesive product avoids film separation in the polar TAC-PAV-TAC film ensemble during edging.

Glyoxal adhesive system and process for manufacturing same

A method and coating used to prepare a photochromically-enabled bifocal ophthalmic lens. The coating is a high adhesive strength acrylate-based coating that contains a small quantity of a polycarbonate-based TPU. The coating is applied to produce an intermediate imbibable bifocal surface. A photochromic solution is subsequently imbibed by contact with the bifocal surface.

High adhesion acrylate coatings for a photochromic ophthalmic lens

An acrylate-based optical coating composition containing a blend of monomers, a metal salt, a Hindered Amine Light Stabilizer (HALS), an antioxidant (AO), an initiator and a photochromic dye. The initiator has a range of free radical energy that is below a predetermined level. The cure process is controlled by the catalyst and initiator in combination with the HALS and AO to avoid deleterious reactions that can increase yellowness. The composition is well suited to be applied to a lens and cured in the mold to form a coating with reduced yellowness having high adhesion and abrasion-resistant properties. A photochromic segmented bifocal lens is produced with low photochromic fatigue and favorable % T values.

Photochromic coating exhibiting improved performance and reduced yellowness

A photochromic coating exhibiting improved performance and photochromic lenses made using the coating. The coating has excellent photochromic darkening and fatigue properties. The coating formulation is made from a monomer blend having at least two different types of monomers. A metal salt catalyst is used along with an initiator. An antioxidant is used in combination with a hindered amine light stabilizer. The coating is suitable for use in an in-mold coating process.

Photochromic coating exhibiting improved performance

The invention relates to a acrylated-based optical coating composition containing an organic peroxide initiator which presents a low yellowness level. The initiator has a range of free radical energy that is below a predetermined level. The cure process is controlled by the use a catalyst and a low energy initiator to avoid deleterious reactions that can increase yellowness. The composition is well suited to be applied to a lens and cured in the mold to form a coating with reduced yellowness having high adhesion and abrasion-resistant properties. A dye can be introduced into the composition to form a tinted lens.

Initiators for optical coating formulations with reduced yellowness

A system and method for providing photochromic segmented multifocal optical lenses. A latex primer formulation is provided for effectuating adhesion of a surface casting composition onto a lens having a photochromic coating. The method provides efficient, cost effective production of durable photochromic segmented lenses, via secure adhesion of a surface casting layer onto a photochromic substrate while maintaining desirable optical characteristics. A composite optical lens is advantageously formed having a photochromic base lens, a primer composition bonded to a convex surface of said base lens, and a cured casting composition bonded to said primer composition layer. The cured casting formulation includes a segment region to impart multifocal qualities onto the resultant composite optical lens.

Growing community of inventors

Dallas, TX, United States of America

Ronald A Berzon