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. 30, 2020
Filed:
May. 23, 2018
Facebook Technologies, Llc, Menlo Park, CA (US);
Byron Taylor, Redmond, WA (US);
Sharvil Shailesh Talati, Seattle, WA (US);
Facebook Technologies, LLC, Menlo Park, CA (US);
Abstract
A waveguide display is used for presenting media to a user. The waveguide display is part of a Near Eye Device (NED), and an output of the waveguide display is a light field directed to a user's eye that extends across the surface of an exit pupil. Light traveling in total internal reflection (TIR) is selectively interrupted through frustrated total internal reflection (FTIR). FTIR coupling between waveguides produces multiple expansions of an input light field. The coupling locations of FTIR are dynamic, allowing for adjustment of the location and size of the exit pupil.