# US 11,113,487 B2 · Spectacle lens provided with a permanent marking > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,113,487 B2 - Document ID: US11113487B2 - Status: Granted - Kind: B2 - Application number: 16/330,955 - Filed: 2017-09-07 - Published: 2019-08-22 - Granted: 2021-09-07 - Earliest claimed: 2016-09-07 - Assignees: Essilor International - Applicants: Essilor International - Inventors: Sébastien Maurice; Christophe Hubert; Stéphane Auffray; Daniel Ferreira - Web page: https://patentgrep.com/patent/US11113487B2 ## CPC - G06K 7/10722: {Photodetector array or CCD scanning} - B29D 11/00009: {Production of simple or compound lenses} - G02C 7/021: {with pattern for identification or with cosmetic or therapeutic effects (methods and processes take preference, e.g. printing, marking or copying processes B41M; identification in general G09F3/00; producing decorative effects in general B44C; surface treatment of glass C03C15/00 - C03C23/00; positioning or marking of lenses B24B13/0055)} - G06K 7/1413: {1D bar codes} - G06K 7/1417: {2D bar codes} - B29D 11/00326: {having particular surface properties, e.g. a micropattern} - G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS - B29D: PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE (making granules B29B9/00; making preforms B29B11/00) - 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 A spectacle lens includes a substrate and an anti-reflection or mirror interference coating covering the substrate on the side of the front face, the interference coating forming a one-dimensional or two-dimensional bar code pattern, the marking being formed by a plurality of point holes on a portion of a thickness of the interference coating, the front face having, away from the point holes, a coefficient of reflection of light having a predetermined nominal value and, in each the point hole, a coefficient of reflection of light having a particular predetermined value that is different from the nominal value. ## Claims ### Claim 1 A spectacle lens provided with a permanent marking, said lens comprising: a substrate; and an anti-reflective interferential or mirror interferential coating covering said substrate on the side of a front face of the spectacle lens, said anti-reflective interferential or mirror interferential coating forming a two-dimensional barcode pattern, said marking being formed by a plurality of punctual gaps on a part of a thickness of said anti-reflective interferential or mirror interferential coating, said front face exhibiting outside of said punctual gaps a coefficient of reflection of light having a predetermined nominal value and in each said punctual gap a coefficient of reflection of light having a predetermined particular value different from said nominal value, wherein the two-dimensional barcode pattern is one of a Quick Response (QR) code, a DataMatrix code, an Aztek code, a MaxiCode, and a High Capacity Color Barcode, and wherein said two-dimensional barcode pattern comprises a plurality of modules juxtaposed in matrix fashion, said plurality of modules comprising, in order to encode an item of information as claimed in a binary language, modules of a first type and modules of a second type, each of the modules of the first type being formed by a plurality of the punctual gaps, each of the modules of the second type being situated outside of said punctual gap. ### Claim 2 (depends on 1) The spectacle lens as claimed in claim 1, wherein the spectacle lens is in an edged state to have a contour of a predetermined spectacle frame. ### Claim 3 (depends on 1) The spectacle lens as claimed in claim 1, wherein said barcode pattern lies within a square having a side of 2 mm. ### Claim 4 (depends on 3) The spectacle lens as claimed in claim 3, wherein each of said modules exhibits the shape of a square having a side of 90 μm. ### Claim 5 (depends on 3) The spectacle lens as claimed in claim 3, wherein said two-dimensional code comprises between 21×21 and 33×33 modules. ### Claim 6 (depends on 1) The spectacle lens as claimed in claim 1, wherein said plurality of punctual gaps of which each of the modules is formed is arranged in a matrix comprising a plurality of rows and of columns. ### Claim 7 (depends on 1) The spectacle lens as claimed in claim 1, wherein said anti-reflective interferential or mirror interferential coating is anti-reflective, said nominal value being less than 1.4%. ### Claim 8 (depends on 1) The spectacle lens as claimed in claim 1, wherein said anti-reflective interferential or mirror interferential coating is a mirror, said nominal value lies between 12% and 15%, and said particular value lies between 32% and 34%. ### Claim 9 (depends on 1) The spectacle lens as claimed in claim 1, wherein said particular value is higher than said nominal value so that said barcode pattern is seen as bright on a dark background, said two-dimensional barcode pattern comprises over a predetermined extent dark zones and bright zones, and said barcode pattern is formed by the set of dark zones of said code. ### Claim 10 (depends on 1) The spectacle lens as claimed in claim 1, wherein said anti-reflective interferential or mirror interferential coating is a mirror, said nominal value lies between 10% and 15%, and said particular value lies between 5% and 10% and less than the nominal value. ### Claim 11 (depends on 1) The spectacle lens as claimed in claim 1, wherein said anti-reflective interferential or mirror interferential coating is a mirror and said barcode pattern is seen as dark on a bright background, said two-dimensional barcode pattern comprises over a predetermined extent dark zones and bright zones, and said barcode pattern is formed by the set of dark zones of said code. ### Claim 12 (depends on 1) A pair of spectacles comprising: at least one of the spectacle lens as claimed in claim 1. ### Claim 13 (depends on 1) A method for reading the marking of the spectacle lens as claimed in claim 1, the method comprising: taking a photograph or video of said barcode pattern, directly on the spectacle lens; and analyzing said taken photograph or video to retrieve an identifier encoded by said two-dimensional barcode pattern formed by said marking. ### Claim 14 (depends on 13) The method as claimed in claim 13, wherein the taking the photograph or the video of the barcode pattern is carried out by a mass-market portable electronic apparatus configured to communicate wirelessly with a network and comprising an embedded camera or an embedded photographic apparatus. ### Claim 15 (depends on 13) The method as claimed in claim 13, further comprising: reading said marking to retrieve and decode an identifier encoded by said barcode pattern; sending a request by a requester over a network to a distant server after reading the marking; obtaining feedback data returned by the distant server; and displaying data. ### Claim 16 (depends on 15) The method as claimed in claim 15, wherein the feedback data sent by the distant server are different depending on a type of the requester. ### Claim 17 (depends on 1) The spectacle lens as claimed in claim 1, wherein said anti-reflective interferential or mirror interferential coating is anti-reflective, and said nominal value is less than 0.85%. ### Claim 18 (depends on 1) A computerized application configured to be embedded on board a mass-market portable electronic apparatus configured to communicate with a network, wherein the application is configured so that said apparatus undertakes a reading of said marking of the spectacle lens as claimed in claim 1, the pattern formed by the marking is retrieved, the retrieved pattern is decoded, a request is sent over a network to a distant server, feedback data returned by the distant server is received, and display data is displayed as a function of the feedback data. ### Claim 19 (depends on 18) The application as claimed in claim 18, wherein the application is configured to send the request comprising at least a part of an identifier encoded by the barcode pattern. ### Claim 20 A spectacle lens provided with a permanent marking, said lens comprising: a substrate; and an anti-reflective interferential or mirror interferential coating covering said substrate on the side of a front face of the spectacle lens, said anti-reflective interferential or mirror interferential coating forming a one-dimensional barcode pattern, said marking being formed by a plurality of punctual gaps on a part of a thickness of said anti-reflective interferential or mirror interferential coating, said front face exhibiting outside of said punctual gaps a coefficient of reflection of light having a predetermined nominal value and in each said punctual gap a coefficient of reflection of light having a predetermined particular value different from said nominal value, wherein the one-dimensional barcode pattern is one of an EAN code, an Alpha39 code, and a GS1 code, and wherein said one-dimensional barcode pattern comprises a plurality of modules juxtaposed in matrix fashion, said plurality of modules comprising, in order to encode an item of information as claimed in a binary language, modules of a first type and modules of a second type, each of the modules of the first type being formed by a plurality of the punctual gaps, each of the modules of the second type being situated outside of said punctual gap.