ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,584, issued on May 27, was assigned to Magic Leap Inc. (Plantation, Fla.).
"Angularly segmented hot mirror for eye tracking" was invented by David Cohen (Nesher, Israel).
According to the abstract* released by the U.S. Patent & Trademark Office: "Examples of an imaging system for use with a head mounted display (HMD) are disclosed. The imaging system can include a forward-facing imaging camera and a surface of a display of the HMD can include an off-axis diffractive optical element (DOE) or hot mirror configured to reflect light to the imaging camera. The DOE or hot mirror can be segmented, for example, with different segments having different angles or different optical power. T...