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:
Aug. 30, 2022
Filed:
Aug. 07, 2019
Meta Platforms Technologies, Llc, Menlo Park, CA (US);
Qi Zhang, Kirkland, WA (US);
Robin Sharma, Redmond, WA (US);
Andrew John Ouderkirk, Redmond, WA (US);
Karol Constantine Hatzilias, Kenmore, WA (US);
Christopher Yuan-Ting Liao, Seattle, WA (US);
Gregory Olegovic Andreev, Kirkland, WA (US);
Meta Platforms Technologies, LLC, Menlo Park, CA (US);
Abstract
The disclosure includes optical systems and near-eye optical elements configured to suppress stray infrared light. Infrared illuminators illuminator an eyebox area with narrow-band infrared illumination light for eye-tracking. A combiner layer receives reflected infrared light reflected of an eye of the user and directs the reflected infrared light to a camera configured to capture eye-tracking images of an eye of a user. An anti-reflection (AR) coating may be disposed on a base curvature to reduce Fresnel reflections that generate stray light. A ghost suppression component may be paired with the infrared illuminators to reduce stray light becoming incident on the camera.