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:
Feb. 06, 2024
Filed:
Jun. 03, 2022
Meta Platforms Technologies, Llc, Menlo Park, CA (US);
Mohamed Tarek Ahmed El-Haddad, Redmond, WA (US);
Yang Yang, Redmond, WA (US);
Francesco Larocca, Kirkland, WA (US);
Robin Sharma, Redmond, WA (US);
Meta Platforms Technologies, LLC, Menlo Park, CA (US);
Abstract
A near-eye imaging system includes a light source, a waveguide, a scanner, and a sensor. The light source is configured to emit light. The waveguide includes an output coupler. The scanner is configured to direct the light to the output coupler at varying scan angles. The waveguide confines the light to guide the light to the output coupler. The output coupler has negative optical power and is configured to direct the light to exit the waveguide as expanding illumination light toward an eyebox region. The sensor is configured to generate a tracking signal in response to returning light incident on the sensor via the scanner and via the output coupler.