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:
Nov. 08, 2022
Filed:
May. 02, 2019
Facebook Technologies, Llc, Menlo Park, CA (US);
Daniel Guenther Grief, Redmond, WA (US);
Scott Charles McEldowney, Redmond, WA (US);
Stephen John Holmes, Redmond, WA (US);
Chadwick Brian Martin, Kirkland, WA (US);
Stephen James McNally, Sammamish, WA (US);
John Goward, Redmond, WA (US);
Meta Platforms Technologies LLC, Menlo Park, CA (US);
Abstract
A light source or projector for a near-eye display includes a light source subassembly optically coupled to a waveguide concentrator. The light source subassembly may include several semiconductor chips each hosting an array of emitters such s superluminescent light-emitting diodes. The semiconductor chips may be disposed side-by-side, with their emitting sides or facets coupled to the waveguide concentrator, which provides a tight array of output light ports on a common output plane of the concentrator. The output diverging beams at the array of output light ports are coupled to a collimator, which collimates the beams and couples them to an angular scanner for scanning the collimated light beams together across the field of view of the display.