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. 14, 2023
Filed:
Apr. 11, 2022
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Digilens Inc., Sunnyvale, CA (US);
James H. Stanley, Palo Alto, CA (US);
Jonathan David Waldern, Los Altos Hills, CA (US);
Milan Momcilo Popovich, Leicester, GB;
Alastair John Grant, San Jose, CA (US);
Steven J. Robbins, San Jose, CA (US);
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Digilens Inc., Sunnyvale, CA (US);
Abstract
A near eye optical display includes a waveguide comprising a first surface and a second surface, an input coupler, a fold grating, and an output grating. The input coupler is configured to receive collimated light from a display source and to cause the light to travel within the waveguide via total internal reflection between the first surface and the second surface to the fold grating; the fold grating is configured to provide pupil expansion in a first direction and to direct the light to the output grating via total internal reflection between the first surface and the second surface; and the output grating is configured to provide pupil expansion in a second direction different than the first direction and to cause the light to exit the waveguide from the first surface or the second surface.