# US 12,601,928 B2 · Determining a progressive lens optical design > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,601,928 B2 - Document ID: US12601928B2 - Status: Granted - Kind: B2 - Application number: 17/904,036 - Filed: 2021-01-31 - Published: 2023-04-27 - Granted: 2026-04-14 - Earliest claimed: 2020-02-16 - Assignees: Addon Optics Ltd. - Applicants: Addon Optical Ltd. - Inventors: Jed Arkin; Haim Engler - Web page: https://patentgrep.com/patent/US12601928B2 ## CPC - G02C 7/027: {considering wearer's parameters} - G02C 7/028: {Special mathematical design techniques} - G02C 7/061: {Spectacle lenses with progressively varying focal power} - G02C 7/086: {Auxiliary lenses located directly on a main spectacle lens or in the immediate vicinity of main spectacles} - 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 Apparatus and methods are described, including providing a temporary progressive lens (20) that is configured for a subject's temporary use, based upon an initial progressive-lens optical design. The lens is composed of a base lens (22) and an attached additional and removable progressive lens part (24) for test purposes. Data that are indicative of suitability of the optical design for activities that are performed by the subject are received, the data being generated during use of the temporary progressive lens by the subject. Based upon the received data, the optical design for a progressive lens for the subject is optimised, and the optimised optical design in output. ## Claims ### Claim 1 A method for use with a temporary progressive lens that is configured for a subject's temporary use, based upon an initial progressive-lens optical design, the method comprising: placing the temporary progressive lens inside a frame that is configured to be worn by the subject; and by means of at least one computer processor: receiving data from one or more sensors that are associated with the frame and that are configured to detect when the frame is removed from and/or repositioned on the subject's face, while the subject performs activities; in response to detecting instances of the frame having been removed from and/or repositioned on the subject's face, receiving an input from the subject indicating their reasons for the frame having been removed from and/or repositioned on the subject's face; based upon the received data and the reasons provided by the subject for the frame having been removed from and/or repositioned on the subject's face, determining an optimized optical design for the progressive lens; and outputting the optimized optical design. ### Claim 2 (depends on 1) The method according to claim 1, wherein placing the temporary progressive lens inside the frame comprises placing inside the frame a temporary progressive lens that is made of a base lens and an additional lens, the base lens comprising a single-focus optically corrective lens, and the additional lens providing progressive optical power, thereby converting the base lens to a progressive lens. ### Claim 3 (depends on 1) The method according to claim 1, wherein receiving the data from the one or more sensors comprises receiving data that are indicative of how much time the subject spends performing respective activities. ### Claim 4 (depends on 1) The method according to claim 1, wherein receiving the data from the one or more sensors comprises receiving data that are indicative of how use of the temporary progressive lens correlates with performance of respective activities by the subject. ### Claim 5 (depends on 1) The method according to claim 1, wherein receiving the data from the one or more sensors comprises receiving data from one or more gyroscopes that are configured to detect data that are indicative of a head position of the subject. ### Claim 6 (depends on 1) The method according to claim 1, wherein receiving the data from the one or more sensors comprises receiving data from one or more cameras that are configured to monitor a pupil of an eye of the subject. ### Claim 7 (depends on 1) The method according to claim 1, wherein receiving the data from the one or more sensors comprises receiving data from one or more cameras that are configured to monitor an eyelid of the subject. ### Claim 8 (depends on 1) The method according to claim 1, wherein receiving the data from the one or more sensors comprises receiving data from one or more light sensors that are configured to monitor a level of ambient light. ### Claim 9 (depends on 1) The method according to claim 1, wherein receiving the data from the one or more sensors comprises receiving data from one or more sensors that are configured to measure a distance to viewed objects that correspond to a direction of a gaze of the subject. ### Claim 10 (depends on 1) The method according to claim 1, wherein receiving the data from the one or more sensors comprises receiving data from one or more solid-state spirit levels that are configured to generate data that are indicative of a degree of head tilt of the subject. ### Claim 11 Apparatus for use with a temporary progressive lens configured for temporary use by a subject, based upon an initial progressive-lens optical design, the apparatus comprising: a frame in which the temporary progressive lens is configured to be placed, the frame being configured to be worn by the subject and comprising one or more sensors configured to acquire data that are indicative of use of the temporary progressive lens by the subject, while the subject performs activities; and at least one computer processor configured to: receive the data from the sensors; based upon the received data, detect when the frame is removed from and/or repositioned on the subject's face; in response to detecting instances of the frame having been removed from and/or repositioned on the subject's face, receiving an input from the subject indicating their reasons for the frame having been removed from and/or repositioned on the subject's face; based upon the received data, and the reasons provided by the subject for the frame having been removed from and/or repositioned on the subject's face, determine an optimized optical design for a progressive lens for the subject; and output the optimized optical design. ### Claim 12 (depends on 11) The apparatus according to claim 11, wherein the computer processor is configured to receive the data by receiving data that are indicative of how much time the subject spends performing respective activities. ### Claim 13 (depends on 11) The apparatus according to claim 11, wherein the computer processor is configured to receive the data by receiving data that are indicative of how use of the temporary progressive lens correlates with performance of respective activities by the subject. ### Claim 14 (depends on 11) The apparatus according to claim 11, wherein the one or more sensors are configured to acquire data that are indicative of a head position of the subject. ### Claim 15 (depends on 11) The apparatus according to claim 11, wherein the one or more sensors comprise one or more cameras that are configured to monitor a pupil of an eye of the subject. ### Claim 16 (depends on 11) The apparatus according to claim 11, wherein the one or more sensors comprise one or more cameras that are configured to monitor an eyelid of the subject. ### Claim 17 (depends on 11) The apparatus according to claim 11, wherein the one or more sensors comprise one or more light sensors that are configured to monitor a level of ambient light. ### Claim 18 (depends on 11) The apparatus according to claim 11, wherein the one or more sensors comprise one or more sensors that are configured to measure a distance to viewed objects that correspond to a direction of a gaze of the subject. ### Claim 19 (depends on 11) The apparatus according to claim 11, wherein the one or more sensors comprise one or more solid-state spirit levels that are configured to generate data that are indicative of a degree of head tilt of the subject.