# US 8,541,526 B2 · Tinted lenses that correct for high order aberrations > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,541,526 B2 - Document ID: US8541526B2 - Status: Granted - Kind: B2 - Application number: 13/177,463 - Filed: 2011-07-06 - Published: 2011-10-27 - Granted: 2013-09-24 - Earliest claimed: 2004-09-07 - Assignees: Essilor International (Compagnie Generale d'Optique) - Applicants: Jagdish M. Jethmalani; Gomaa Abdelsadek; Erdem Cetin; Shawn McCarty; Junhao Ge - Inventors: Jagdish M. Jethmalani; Gomaa Abdelsadek; Erdem Cetin; Shawn McCarty; Junhao Ge - Web page: https://patentgrep.com/patent/US8541526B2 ## CPC - G02B 1/041: {Lenses} - C08F 212/34: Monomers containing two or more unsaturated aliphatic radicals - C08F 212/36: Divinylbenzene - C08F 283/00: Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G - C08F 290/00: Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups - C08F 290/06: Polymers provided for in subclass C08G - C08F 290/14: Polymers provided for in subclass C08G - C08F 291/00: Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00 - C08G 75/045: from mercapto compounds and unsaturated compounds - C08G 75/12: Polythioether-ethers (C08G75/0245 takes precedence) - C08L 25/18: Homopolymers or copolymers of aromatic monomers containing elements other than carbon and hydrogen - G02B 3/0087: {with index gradient} - G02C 7/102: {Photochromic filters} - G02C 2202/14: Photorefractive lens material - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS - C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) - G02C: SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES (trial frames for testing the eyes A61B3/04; goggles or eyeshields not having the same features as spectacles A61F9/00) ## Abstract Disclosed herein are photopolymerizable compositions and formulations that comprise photochromic dyes, photochromic blue light blocking dyes, permanent dyes, permanent blue blocking dyes, and/or their combinations. In some variations, these formulations are suited for example, for sandwiching between lens blanks to form semi-finished lens assemblies to form a tinted lens useful in sunglasses. The formulations are also suitable for correcting optical aberrations, and may provide a photochromic effect when exposed to sunlight. ## Claims ### Claim 1 A method of tinting a sunglass lens that contains a sandwich configuration of two transparent elements having a cured polymer sandwiched in between said elements, said method comprising adding a dye to said curable polymer prior to said polymer being cured, wherein the cured polymer is a layer having a thickness of less than about 1 mm. ### Claim 2 (depends on 1) The method of claim 1, wherein the dye is a permanent dye. ### Claim 3 (depends on 2) The method of claim 2, wherein the permanent dye provides gray, brown, green, blue, yellow, orange, red, or violet, or a combination of these colors to the cured polymer. ### Claim 4 A method of making a tinted sunglass lens comprising: depositing a layer of curable material between two transparent elements, wherein said layer of curable material contains one or more monomers and a dye, wherein the dye is a permanent dye; and curing the curable material to form the tinted sunglass lens. ### Claim 5 (depends on 4) The method of claim 4, wherein the transparent elements are ophthalmic lenses. ### Claim 6 (depends on 5) The method of claim 5, wherein the ophthalmic lenses comprise a base lens and a cap. ### Claim 7 (depends on 4) The method of claim 4, wherein the curing step produces a polymer layer having a variable index of refraction. ### Claim 8 (depends on 4) The method of claim 4, wherein the curing step produces a polymer layer having a constant index of refraction. ### Claim 9 (depends on 4) The method of claim 4, wherein the permanent dye provides gray, brown, green, blue, yellow, orange, red, or violet, or a combination of these colors in the layer of curable material. ### Claim 10 (depends on 6) The method of claim 6, wherein the cured polymer is a layer between said base lens and cap and said layer is less than about 0.5 mm thick. ### Claim 11 A method of making a tinted sunglass lens comprising: forming a layer of curable material between two transparent elements; adding a dye to the curable material; and curing the curable material after the dye has been added to the curable material, wherein the dye provides a photochromic effect to tint the sunglass lens when the dye is exposed to UV-light or sunlight, wherein the tint of the sunglass lens is lessened when the dye is not exposed to UV-light or sunlight. ### Claim 12 (depends on 11) The method of claim 11, wherein the dye is a photochromic dye. ### Claim 13 (depends on 12) The method of claim 12, wherein the photochromic dye provides gray, brown, green, blue, yellow, orange, red, violet, or a combination of these colors in the layer. ### Claim 14 (depends on 11) The method of claim 11, wherein the transparent elements are ophthalmic lenses. ### Claim 15 (depends on 14) The method of claim 14, wherein the ophthalmic lenses comprise a base lens and a cap. ### Claim 16 (depends on 11) The method of claim 11, wherein the curing step produces a cured polymer having a constant index of refraction. ### Claim 17 (depends on 16) The method of claim 16, wherein the cured polymer is a layer between said base and cap and said layer is less than about 0.5 mm thick. ### Claim 18 (depends on 4) A sunglass lens made according to method of claim 4, or 11.