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:
Jun. 22, 2021
Filed:
May. 01, 2019
Facebook Technologies, Llc, Menlo Park, CA (US);
Babak Amirsolaimani, Redmond, WA (US);
Mohamed Tarek El-Haddad, Redmond, WA (US);
FACEBOOK TECHNOLOGIES, LLC, Menlo Park, CA (US);
Abstract
A three-dimensional object imager uses infrared light at different wavelengths to triangulate depth information of the object from wavelength-dependent detection of the infrared image of the object. The depth information is obtained by determining wavelength of infrared light impinging on different pixels of the array. The wavelength may be determined by breaking each pixel into a plurality of sub-pixels, each sub-pixel having its own spectral selectivity to light at different infrared wavelength. For eye imaging or eye tracking applications, this enables the preservation of an unobstructed field of view of the eye while obtaining real-time, dynamic information about eye position and orientation in an non-intrusive, inconspicuous manner.