# US 2021/0240008 A1 · Method for determining to which extent a lens design is adapted to a user > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0240008 A1 - Document ID: US20210240008A1 - Status: Published application - Kind: A1 - Application number: 17/048,703 - Filed: 2019-04-23 - Published: 2021-08-05 - Earliest claimed: 2018-04-23 - Assignees: Essilor International - Applicants: Essilor International - Inventors: Gildas MARIN; Richard LEGRAS; David RIO - Web page: https://patentgrep.com/patent/US20210240008A1 ## CPC - G02C 7/027: {considering wearer's parameters} - 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 method implemented by a computer means includes: obtaining a lens design; the lens design representing the variation of optical aberrations as a function of the angular view point; obtaining a set of subjective values representing the sensitivity of the user to a set of optical aberrations; and correlating the set of subjective values and the lens design based on the variation of optical aberrations so as to produce correlation information, advantageously for determining to which extent the lens design is adapted to the user from the correlation. ## Claims ### Claim 1 Method implemented by computer means, the method comprising: obtaining a lens design; the lens design representing the variation of optical aberrations as a function of the angular view point; obtaining a set of subjective values representing the sensitivity of the user to a set of optical aberrations; correlating the set of subjective values and the lens design based on the variation of optical aberrations so as to produce correlation information, advantageously for determining to which extent said lens design is adapted to said user from said correlation. ### Claim 2 (depends on 1) The method according claim 1, comprising prior to correlating the set of subjective values and the lens design, defining zones on the lens design, and wherein the correlation of the set of subjective values and the lens design is performed for each defined zone of the lens design. ### Claim 3 (depends on 1) The method according to claim 1, wherein the set of subjective values are obtained by receiving, grades given by the user, said grades representing the quality of simulated images of real optical errors. ### Claim 4 (depends on 1) The method according to claim 1, further comprising determining a level of acceptance of the lens design by the user based on the correlation information. ### Claim 5 (depends on 1) The method according to claim 1, further comprising controlling a display of a design map of the user, the design map representing the correlation information. ### Claim 6 (depends on 4) Method implemented by computer means for determining the most appropriate lens design for a wearer, the method comprising: obtaining a set of subjective values representing the sensitivity of the user to a set of optical aberrations; determining a level of acceptance of multiple lens designs by a user according to the method of claim 4; comparing the levels of acceptance of the multiple lens designs; and determining the most appropriate lens design for the wearer based on the comparison of the levels of acceptance of the multiple lens designs. ### Claim 7 (depends on 6) The method according to claim 6 comprising prior to comparing the levels of acceptance of the multiple lens design, defining zones on a design map of each lens design, each defined zone corresponding to a specific value of level of acceptance, and obtaining a level of satisfaction, and wherein during the step of comparing the levels of acceptance of the multiple lens designs, the design maps are compared between each other to determine the most appropriate lens design for the wearer. ### Claim 8 (depends on 7) The method according to claim 7 wherein the most appropriate lens design for the wearer is the one with the smallest zone representing a level of acceptance lower than the level of satisfaction. ### Claim 9 (depends on 7) The method according to claim 7 wherein the most appropriate lens design for the wearer is the one with the biggest zone representing a level of acceptance higher than the level of satisfaction. ### Claim 10 (depends on 4) Method implemented by computer means for determining at least an appropriate lens design for a wearer, the method comprising: selecting a lens design; determining a level of acceptance of the selected lens design by a user according to the method of claim 4; and obtaining a level of satisfaction, and comparing the level of acceptance of the selected lens design by the user to the level of satisfaction; wherein the steps are repeated with different lens designs until at least an appropriate lens design for the wearer is selected. ### Claim 11 (depends on 10) The method according to claim 10 further comprising prior to the step of determining the level of acceptance of the lens design by a user, defining zones on the lens design, the level of acceptance of the lens design by the user being determined for each defined zone of the lens design, and comprising prior to the step of comparing the level of acceptance of the lens design and the level of satisfaction, weighting by a percentage of use repartition of the user the level of acceptance of each defined zone of the lens design by the user, and wherein the weighted level of acceptance is compared to the level of satisfaction. ### Claim 12 (depends on 10) The method according to claim 10, wherein the level of satisfaction corresponds to a minimal acceptable level of acceptance of the lens design. ### Claim 13 A device for determining the level of acceptance of a lens design by a user, comprising: a communication unit configured to obtain a set of subjective values representing the sensitivity of the user to a set of optical aberrations and a lens design, a memory storing computer executable instructions and configured to store the received set of subjective values and lens design; at least one processor for executing the computer executable instructions, wherein the computer executable instructions comprise instructions for determining the level of acceptance of the lens design by the user based on a correlation of the set of subjective values and the lens design. ### Claim 14 (canceled) ### Claim 15 (depends on 1) A non-transitory computer readable medium on which is stored one or more sequences of instructions of software code adapted to perform steps of a method compliant with claim 1 when executed by a processor. ### Claim 16 (depends on 2) The method according to claim 2, wherein the set of subjective values are obtained by receiving, grades given by the user, said grades representing the quality of simulated images of real optical errors. ### Claim 17 (depends on 2) The method according to claim 2, further comprising determining a level of acceptance of the lens design by the user based on the correlation information. ### Claim 18 (depends on 3) The method according to claim 3, further comprising determining a level of acceptance of the lens design by the user based on the correlation information. ### Claim 19 (depends on 2) The method according to claim 2, further comprising controlling a display of a design map of the user, the design map representing the correlation information. ### Claim 20 (depends on 3) The method according to claim 3, further comprising controlling a display of a design map of the user, the design map representing the correlation information. ### Claim 21 (depends on 4) The method according to claim 4, further comprising controlling a display of a design map of the user, the design map representing the correlation information.