ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,544,263, issued on Feb. 10, was assigned to Meta Platforms Technologies LLC (Menlo Park, Calif.).

"Pupil-aware eye tracking for eye safety" was invented by Yatong An (Redmond, Wash.), Youmin Wang (Bellevue, Wash.) and Gaetano Aiello (Redmond, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Eye safety and eye tracking accuracy is enhanced through pupil-aware eye tracking, where a fringe pattern projection or illumination onto the eye is locally dimmed in an area corresponding to the pupil. Fringe projection local dimming is accomplished by modifying (locally dimming) the fringe pattern at the projector. Illumination local dimming is accomplished at ...