The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 2025
Filed:
Jun. 10, 2024
Meta Platforms Technologies, Llc, Menlo Park, CA (US);
Qi Zhang, Kirkland, WA (US);
Chad Lichtenhan, Tucson, AZ (US);
Morteza Karami, Renton, WA (US);
Kuan Pei Yap, San Jose, CA (US);
Mehmet Mutlu, Redmond, WA (US);
Meta Platforms Technologies, LLC, Menlo Park, CA (US);
Abstract
An eye tracking system with in-optical-assembly plane illumination is described. Side-emitting light emitting diodes (LEDs) aligned with a plane of an optical assembly of a near-eye display device are used to illuminate the eye of a user and generate glints that can be detected by an eye tracking camera. A waveguide display of the near-eye display device projects computer-generated content to the eye. A mirror is positioned between the LEDs and the waveguide display to reflect light beams generated from the LEDs toward the waveguide display to mitigate any double glints that may cause ghost signals. A processor of the near-eye display device determines a position and gaze of the eye based on the captured image of the eye with the glints, and generates the computer-generated content for the waveguide display based on the position and gaze of the eye.