ALEXANDRIA, Va., June 10 -- United States Patent no. 12,293,607, issued on May 6, was assigned to Tobii AB (Danderyd, Sweden).
"Holographic eye imaging device" was invented by Daniel Torneus (Danderyd, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "An eye tracking device for tracking an eye is described. The eye tracking device comprises: a first diffractive optical element, DOE, arranged in front of the eye, an image module, wherein the image module is configured to capture an image of the eye via the first DOE. The first DOE is adapted to direct a first portion of incident light reflected from the eye, towards the image module. The eye tracking device is characterized in that the first DOE is config...