# US 12,601,935 B2 · Device and process for alerting for eye exam or change of frame or lens > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,601,935 B2 - Document ID: US12601935B2 - Status: Granted - Kind: B2 - Application number: 17/906,916 - Filed: 2021-03-25 - Published: 2023-05-04 - Granted: 2026-04-14 - Earliest claimed: 2020-03-27 - Assignees: Essilor International - Applicants: Essilor International - Inventors: Ee Woon Lim; Adeline Yang - Web page: https://patentgrep.com/patent/US12601935B2 ## CPC - G02C 11/00: Non-optical adjuncts; Attachment thereof (G02C7/16 takes precedence) - A61B 5/01: Measuring temperature of body parts {; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue} (clinical contact thermometers G01K13/20) - A61B 5/6803: {Head-worn items, e.g. helmets, masks, headphones or goggles} - A61B 5/746: {Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms} - A61B 2562/0247: Pressure sensors - 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) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract The present invention relates to an eyewear device comprising a system for alerting of a need of an eye examination and/or a change of frame and/or a change of lens of the eyewear device, in order to provide the best visual correction and comfort. The invention also relates to a process for monitoring the need of an eye examination and/or a change of frame and/or lens of an eyewear device, comprising using an eyewear device according to the invention, and to a process for manufacturing an eyewear device according to the invention. ## Claims ### Claim 1 An eyewear device comprising a frame and at least one lens, wherein the device comprises at least one indicator which is able to change, wherein the at least one indicator change is induced by at least one stimulus, and wherein the at least one indicator change is indicative of a need of an eye examination and/or a change of frame and/or a change of lens of the eyewear device, wherein at least one stimulus is an exposition to a predetermined mechanical constraint and the corresponding change is indicative of a need of a change of frame. ### Claim 2 (depends on 1) The eyewear device according to claim 1, wherein said at least one indicator is able to change color, wherein said at least one stimulus induces a color change which is indicative of said need. ### Claim 3 (depends on 1) The eyewear device according to claim 1, wherein said at least one indicator is able to change its area, wherein said at least one stimulus induces an area change which is indicative of said need. ### Claim 4 (depends on 1) The eyewear device according to claim 1, wherein the at least one stimulus is selected from the group consisting of a predetermined time elapse, an exposition to a predetermined light, an exposition to a predetermined temperature, an exposition to a predetermined chemical, an exposition to a predetermined mechanical constraint, an exposition to a predetermined bacterial contamination, and an exposition to a predetermined electrical potential. ### Claim 5 (depends on 1) The eyewear device according to claim 1, wherein the at least one indicator is not visible when the eyewear is worn by an individual. ### Claim 6 (depends on 1) The eyewear device according to claim 1, wherein the at least one indicator is positioned on an eyewear area selected from the group consisting of a lens area, a nose bridge, an ear hook, a nose pad and a temple leg. ### Claim 7 (depends on 1) The eyewear device according to claim 1, wherein at least one stimulus is a predetermined time elapse and the corresponding change is indicative of a need of an eye examination. ### Claim 8 (depends on 7) The eyewear device according to claim 7, wherein the time elapse indicator comprises a reservoir, a migration medium and an actuator. ### Claim 9 (depends on 1) The eyewear device according to claim 1, wherein the indicator is in the shape of a drawing or text which is not apparent in absence of stimulus, and which appearance is induced by the stimulus. ### Claim 10 (depends on 1) The eyewear device according to claim 1, wherein the indicator comprises at least one medium able to change color selected from the group consisting of a sticker, a chromic paint and a gel. ### Claim 11 (depends on 1) The eyewear device according to claim 1, wherein at least one stimulus is an exposition to a predetermined light, wherein the predetermined light is UV light, and wherein the corresponding at least one indicator comprises at least one dye and/or pigment, and at least one UV-activated releasing agent. ### Claim 12 A process for monitoring the need of an eye examination and/or a change of frame and/or lens of an eyewear device, comprising using an eyewear device comprising a frame and at least one lens, wherein the device comprises at least one indicator which is able to change, wherein the at least one indicator change is induced by at least one stimulus, and wherein the at least one indicator change is indicative of a need of an eye examination and/or a change of frame and/or a change of lens of the eyewear device, wherein at least one stimulus is an exposition to a predetermined mechanical constraint and the corresponding change is indicative of a need of a change of frame. ### Claim 13 A process for manufacturing an eyewear device comprising a frame and at least one lens, wherein the device comprises at least one indicator which is able to change, wherein the at least one indicator change is induced by at least one stimulus, and wherein the at least one indicator change is indicative of a need of an eye examination and/or a change of frame and/or a change of lens of the eyewear device, comprising the steps of: a) providing at least one indicator which is able to change, b) determining at least one parameter value which, upon reach, should trigger a change of the at least one indicator, and c) positioning the at least one indicator on at least one frame or lens area of an eyewear device, wherein at least one stimulus is an exposition to a predetermined mechanical constraint and the corresponding change is indicative of a need of a change of frame. ### Claim 14 (depends on 13) The process for manufacturing an eyewear device according to claim 13, wherein the at least one stimulus is selected from the group consisting of a predetermined time elapse, an exposition to a predetermined light, an exposition to a predetermined temperature, an exposition to a predetermined chemical, an exposition to a predetermined mechanical constraint, an exposition to a predetermined bacterial contamination, and an exposition to a predetermined electrical potential.