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:
Mar. 16, 2021
Filed:
Apr. 16, 2019
Facebook Technologies, Llc, Menlo Park, CA (US);
Karol Constantine Hatzilias, Kenmore, WA (US);
Robin Sharma, Redmond, WA (US);
Andrew John Ouderkirk, Redmond, WA (US);
Qi Zhang, Kirkland, WA (US);
Christopher Yuan-Ting Liao, Seattle, WA (US);
Facebook Technologies, LLC, Menlo Park, CA (US);
Abstract
Aspects of an illumination layer of a near-eye optical element for a head mounted display (HMD) are provided herein. The illumination layer includes a plurality of in-field light sources and a keep-out zone. The in-field light sources are configured to emit infrared light to illuminate an eye of a user of the HMD for imaging of the eye by an eye-tracking camera. The keep-out zone includes a center that is to be aligned with a center of the eye when the eye is in a centered orientation, where the in-field light sources are arranged within the illumination layer outside of the keep-out zone.