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:
Oct. 14, 2025
Filed:
Mar. 17, 2022
Meta Platforms Technologies, Llc, Menlo Park, CA (US);
Sihui He, Sunnyvale, CA (US);
Jacques Gollier, Sammamish, WA (US);
Maxwell Parsons, Seattle, WA (US);
Babak Amirsolaimani, Redmond, WA (US);
Wanli Chi, Sammamish, WA (US);
Daniel Guenther Greif, Redmond, WA (US);
Renate Eva Klementine Landig, Seattle, WA (US);
Xiayu Feng, Kirkland, WA (US);
Zhimin Shi, Bellevue, WA (US);
Nicholas John Diorio, Duvall, WA (US);
Yang Yang, Redmond, WA (US);
Giuseppe Calafiore, Redmond, WA (US);
Fenglin Peng, Redmond, WA (US);
Tanya Malhotra, Redmond, WA (US);
Andrew John Ouderkirk, Redmond, WA (US);
Meta Platforms Technologies, LLC, Menlo Park, CA (US);
Abstract
A switchable grating may be used to redirect illuminating light for illuminating a user's eye in an eye tracking system, to facilitate the determination of eye position and/or orientation. The eye tracking system may be used in a near-eye display. An eye tracking camera obtains an eye image, and a controller performs an initial determination of the eye position. The controller may switch the switchable grating to direct the illuminating light beam onto the eye, for a better position and/or eye orientation determination.