# US 2008/0187749 A1 · Optical element having light influencing property > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2008/0187749 A1 - Document ID: US20080187749A1 - Status: Published application - Kind: A1 - Application number: 11/955,725 - Filed: 2007-12-13 - Published: 2008-08-07 - Earliest claimed: 2007-01-11 - Assignees: PPG Industries Ohio, Inc. - Inventors: John J. Cael; Carol L. Knox; Jonathan M. Mack; Feng Wang; Robert S. Wenzinger - Web page: https://patentgrep.com/patent/US20080187749A1 ## CPC - C09K 9/02: Organic tenebrescent materials - G02B 5/23: Photochromic filters - G02B 5/3033: {in the form of a thin sheet or foil, e.g. Polaroid} - Y10T 428/2848: Three or more layers - C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract Provided is an optical element having at least (a) a support polymeric film layer of film material having opposing first and second sides, (b) a second polymeric film layer having opposing first and second sides, the second layer including a film material exhibiting a light influencing property, and (c) optionally, an adhesive layer interposed between and connected to at least a portion of the first side of support layer (a) and the second side of second layer (b). The film material of support layer (a) and the film material of second layer (b) are the same or different. ## Claims ### Claim 1 An optical element comprising at least (a) a support polymeric film layer having opposing first and second sides, said layer comprising a film material, (b) a second polymeric film layer having opposing first and second sides, said second layer comprising a film material and exhibiting a light influencing property, and (c) optionally, an adhesive layer interposed between and connected to at least a portion of the first side of support polymeric film layer (a) and the second side of second polymeric film layer (b), wherein the film material comprising support polymeric film layer (a) and the film material comprising second polymeric film layer (b) are the same or different. ### Claim 2 (depends on 1) The optical element of claim 1, wherein support polymeric film layer (a) and/or second polymeric film layer (b) comprises polycarbonate, polycyclic alkene, polyurethane, poly(urea)urethane, polythiourethane, polythio(urea)urethane, polyol(allyl carbonate), cellulose acetate, cellulose diacetate, cellulose triacetate, cellulose acetate propionate, cellulose acetate butyrate, poly(vinyl acetate), poly(vinyl alcohol), poly(vinyl chloride), poly(vinylidene chloride), poly(ethylene terephthalate), polyester, polysulfone, polyolefin, copolymers thereof, or mixtures thereof. ### Claim 3 (depends on 2) The optical element of claim 2, wherein support polymeric film layer (a) and/or second polymeric film layer (b) comprises cellulose acetate, cellulose diacetate, cellulose triacetate, cellulose acetate propionate, and/or cellulose acetate butyrate. ### Claim 4 (depends on 1) The optical element of claim 1, wherein the second polymeric film layer (b) is photochromic and/or linearly polarizing. ### Claim 5 (depends on 4) The optical element of claim 4, wherein the second polymeric film layer (b) is photochromic and comprises a photochromic material comprising naphthopyrans, oxazines, phenanthropyrans, benzopyrans, metal-dithiozonates; fulgides, and/or fulgimides. ### Claim 6 (depends on 4) The optical element of claim 4, wherein the support polymeric film layer (a) and/or the second polymeric film layer (b) comprises cellulose acetate, cellulose diacetate, cellulose triacetate, cellulose acetate propionate, cellulose acetate butyrate, or mixtures thereof. ### Claim 7 (depends on 4) The optical element of claim 4, wherein the second polymeric film layer (b) is linearly polarizing and comprises a film material comprising a polymeric component comprising poly(vinyl alcohol), poly(vinyl butyral), polyethylene terephthalate, cellulose acetate butyrate, cellulose acetate proprionate, cellulose acetate, cellulose diacetate, cellulose triacetate, polyurethane, polyether, polyester, polyamide, polyalkyl(meth)acrylate, copolymers thereof, or mixtures thereof; and a dichroic material. ### Claim 8 (depends on 4) The optical element of claim 4, wherein the second polymeric film layer (b) is linearly polarizing and comprises a film material comprising a polymeric component comprising oriented film of polyvinyl alcohol, vinyl butyral, polyethylene terephthalate, polyalkyl(meth)acrylate, polyamide, poly(amide-ether) block copolymers, poly(ester-ether) block copolymers, poly(ether-urethane) block copolymers, poly(ester-urethane) block copolymers, and/or poly(ether-urea) block copolymers; and a dichroic material. ### Claim 9 (depends on 7) The optical element of claim 7, wherein the dichroic material comprises azomethines, indigoids, thioindigoids, merocyanines, indans, quinophthalonic dyes, perylenes, phthaloperines, triphenodioxazines, indoloquinoxalines, imidazo-triazines, tetrazines, azo and (poly)azo dyes, benzoquinones, naphthoquinones, anthroquinone, (poly)anthroquinones, anthropyrimidinones, iodine, and/or iodates. ### Claim 10 (depends on 7) The optical element of claim 7, wherein the dichroic material comprises a photochromic-dichroic compound. ### Claim 11 (depends on 7) The optical element of claim 7, wherein the dichroic material comprises a K-type polarizer. ### Claim 12 (depends on 8) The optical element of claim 8, wherein the dichroic material comprises azomethines, indigoids, thioindigoids, merocyanines, indans, quinophthalonic dyes, perylenes, phthaloperines, triphenodioxazines, indoloquinoxalines, imidazo-triazines, tetrazines, azo and (poly)azo dyes, benzoquinones, naphthoquinones, anthroquinone, (poly)anthroquinones, anthropyrimidinones, iodine, and/or iodates. ### Claim 13 (depends on 8) The optical element of claim 8, wherein the dichroic material comprises a photochromic-dichroic compound. ### Claim 14 (depends on 8) The optical element of claim 8, wherein the dichroic material comprises a K-type polarizer. ### Claim 15 (depends on 7) The optical element of claim 7, wherein the support polymeric film layer (a) comprises cellulose acetate, cellulose diacetate, cellulose triacetate, cellulose acetate propionate, and/or cellulose acetate butyrate. ### Claim 16 (depends on 8) The optical element of claim 8, wherein support polymeric film layer (a) comprises cellulose acetate, cellulose diacetate, cellulose triacetate, cellulose acetate propionate, and/or cellulose acetate butyrate. ### Claim 17 (depends on 1) The optical element of claim 1 wherein the film material comprising the support polymeric film layer (a) and the film material comprising the second polymeric film layer (b) are different. ### Claim 18 (depends on 1) The optical element of claim 1, wherein the film material comprising the support polymeric film layer (a) and the film material comprising the second polymeric film layer (b) are the same. ### Claim 19 (depends on 1) The optical element of claim 1, further comprising protective polymeric film layer (d) having opposing first and second sides, wherein the second side of protective polymeric film layer (d) is connected to at least a portion of the first side of the second polymeric film layer (b). ### Claim 20 (depends on 19) The optical element of claim 19, wherein protective polymeric film layer (d) comprises polycarbonate, polycyclic alkene, polyurethane, poly(urea)urethane, polythiourethane, polythio(urea)urethane, polyol(allyl carbonate), cellulose acetate, cellulose diacetate, cellulose triacetate, cellulose acetate propionate, cellulose acetate butyrate, poly(vinyl acetate), poly(vinyl alcohol), poly(vinyl chloride), poly(vinylidene chloride), poly(ethylene terephthalate), polyester, polysulfone, polyolefin, copolymers thereof, or mixtures thereof. ### Claim 21 (depends on 20) The optical element of claim 20, wherein protective polymeric film layer (d) comprises cellulose acetate butyrate, cellulose acetate propionate, cellulose acetate, cellulose diacetate, and/or cellulose triacetate. ### Claim 22 (depends on 20) The optical element of claim 20, wherein protective polymeric film layer (d) further comprises a protective coating comprising abrasion-resistant coatings, oxygen barrier-coatings, UV-shielding coatings, anti-reflective coatings, anti-fogging coatings, mirror coatings, or combinations thereof, connected to at least a portion of the first side of protective layer (d). ### Claim 23 (depends on 1) The optical element of claim 1, wherein the first side of support polymeric film layer (a) is connected directly to the second side of second polymeric film layer (b). ### Claim 24 (depends on 23) The optical element of claim 23, further comprising a protective coating comprising abrasion-resistant coatings, oxygen barrier-coatings, UV-shielding coatings, anti-reflective coatings, anti-fogging coatings, mirror coatings, or combinations thereof, connected to at least a portion of the first side of second polymeric film layer (b). ### Claim 25 (depends on 1) The optical element of claim 1 wherein the optical element comprises ophthalmic elements, display elements, windows, mirrors, and/or active and passive liquid crystal cell elements and devices. ### Claim 26 (depends on 25) The optical element of claim 25, wherein the ophthalmic element comprises corrective lenses, non-corrective lenses, contact lenses, intra-ocular lenses, magnifying lenses, protective lenses, or visors.