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:
Jul. 28, 2020
Filed:
Nov. 02, 2018
Facebook Technologies, Llc, Menlo Park, CA (US);
Robin Sharma, Redmond, WA (US);
Andrew John Ouderkirk, Kirkland, WA (US);
Robert Dale Cavin, Seattle, WA (US);
Alexander Jobe Fix, Seattle, WA (US);
Ying Geng, Bellevue, WA (US);
Elias Daniel Guestrin, Redmond, WA (US);
Karol Constantine Hatzilias, Kenmore, WA (US);
Yusufu Njoni Bamaxam Sulai, Bothell, WA (US);
Facebook Technologies, LLC, Menlo Park, CA (US);
Abstract
Techniques for eye-tracking in a near-eye display system are disclosed. One example of a near-eye display system includes a waveguide-based display substrate that is transparent to visible light and configured to be placed in front of a user's eye. The waveguide-based display substrate includes a first surface area configured to specularly reflect a first portion of invisible light reflected by the user's eye to a camera to form a first image of the user's eye in a first area of an image frame, and a light deflector embedded in the waveguide-based display substrate or formed on a second surface area of the waveguide-based display substrate. The light deflector is configured to direct a second portion of the invisible light reflected by the user's eye to the camera to form a second image of the user's eye in a second area of the image frame.