# US 11,998,273 B2 · Influencing pupil diameter to improve vision > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,998,273 B2 - Document ID: US11998273B2 - Status: Granted - Kind: B2 - Application number: 17/188,786 - Filed: 2021-03-01 - Published: 2022-09-01 - Granted: 2024-06-04 - Earliest claimed: 2021-03-01 - Assignees: Lenovo (Singapore) Pte. Ltd. - Applicants: Lenovo (Singapore) Pte. Ltd. - Inventors: Mark Patrick Delaney; Brett Ward; John Carl Mese; Nathan J. Peterson; Russell Speight VanBlon; Arnold S. Weksler - Web page: https://patentgrep.com/patent/US11998273B2 ## CPC - A61B 3/112: {for measuring diameter of pupils} - G09G 5/10: Intensity circuits - A61B 3/0008: {provided with illuminating means (A61B3/117, A61B3/14 take precedence)} - A61B 3/0041: {characterised by display arrangements} - G09G 2320/0626: for control of overall brightness - G09G 2320/0693: Calibration of display systems - G09G 2354/00: Aspects of interface with display user - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) ## Abstract A computer device implemented method includes displaying, via the computer device, content on a display device, sensing a pupil size of a user of the computer, and adjusting a luminosity setting of the display device based on the sensed pupil size and a pupil size setpoint. ## Claims ### Claim 1 A computer device implemented method comprising: displaying, via the computer device, content on a display device; sensing a pupil size of a user of the computer viewing the content by: capturing an image of the user via a computer device camera; identifying a pupil of the user in the image; and measuring the size of the identified pupil; and adjusting a luminosity setting of the display device based on the sensed pupil size and a pupil size setpoint to control the pupil size to the pupil size setpoint. ### Claim 2 (depends on 1) The method of claim 1 wherein sensing the pupil size and adjusting the luminosity setting is performed iteratively. ### Claim 3 (depends on 1) The method of claim 1 wherein sensing the pupil size and adjusting the luminosity setting is performed periodically. ### Claim 4 (depends on 1) The method of claim 1 wherein the pupil size setpoint has a value between 3.0 mm to 4.0 mm. ### Claim 5 (depends on 1) The method of claim 1 wherein the pupil size setpoint has a value selectable by the user. ### Claim 6 (depends on 1) The method of claim 1 wherein adjusting the luminosity setting is performed using at least one of proportional, derivative, and integral control. ### Claim 7 (depends on 6) The method of claim 6 wherein the control is selected based on content having a steady lux level. ### Claim 8 (depends on 6) The method of claim 6 wherein the control is selected based on content having a variable lux level. ### Claim 9 (depends on 1) The method of claim 1 wherein the sensed pupil size is based on an average of pupil sizes of multiple users. ### Claim 10 A machine-readable storage device having instructions for execution by a processor of a machine to cause the processor to perform operations to perform a method, the operations comprising: displaying, via the computer device, content on a display device; sensing a pupil size of a user of the computer viewing the display device; and adjusting a luminosity setting of the display device based on the sensed pupil size and a pupil size setpoint to control the pupil size. ### Claim 11 (depends on 10) The device of claim 10 wherein sensing the pupil size and adjusting the luminosity setting is performed periodically and wherein the pupil size setpoint has a value between 3.0 mm to 4.0 mm. ### Claim 12 (depends on 10) The device of claim 10 wherein adjusting the luminosity setting is performed using at least one of proportional, derivative, and integral control. ### Claim 13 (depends on 12) The device of claim 12 wherein the control is selected based on content having a steady lux level or is selected based on content having a variable lux level. ### Claim 14 (depends on 10) The device of claim 10 wherein the sensed pupil size is based on an average of pupil sizes of multiple users. ### Claim 15 (depends on 10) The device of claim 10 wherein operations for sensing the pupil size comprise: capturing an image of the user via a computer device camera; identifying a pupil of the user; and measuring the size of the identified pupil. ### Claim 16 A device comprising: a processor; and a memory device coupled to the processor and having a program stored thereon for execution by the processor to perform operations comprising: displaying, via the computer device, content on a display device; sensing a pupil size of a user of the computer; and adjusting a luminosity setting of the display device based on the sensed pupil size and a pupil size setpoint to control the pupil size. ### Claim 17 (depends on 16) The device of claim 16 wherein sensing the pupil size and adjusting the luminosity setting is performed periodically and wherein the pupil size setpoint has a value between 3.0 mm to 4.0 mm. ### Claim 18 (depends on 16) The device of claim 16 wherein the sensed pupil size is based on an average of pupil sizes of multiple users. ### Claim 19 (depends on 16) The device of claim 16 wherein sensing the pupil size is performed by operations comprising: capturing an image of the user via a computer device camera; identifying a pupil of the user; and measuring the size of the identified pupil.