ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,549,831, issued on Feb. 10, was assigned to PUPIL LABS GmbH (Berlin).

"Eye tracking module and head-wearable device" was invented by Moritz Kassner (Berlin).

According to the abstract* released by the U.S. Patent & Trademark Office: "An eye tracking module for a head-wearable device of a user includes an electronics carrier, an image sensor arranged on the electronics carrier, an optical path for receiving visible light at the image sensor from a first region of interest, and an IR-waveguide arranged with respect to the optical path such that received visible light is at least substantially not diverted and/or guided by the IR-waveguide. The IR-waveguide includes a first input apertu...