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:
Sep. 16, 2025
Filed:
Aug. 16, 2022
Amazon Technologies, Inc., Seattle, WA (US);
Pierre-Alexandre Blanche, Tucson, AZ (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
A waveguide combiner with dynamic grating activation is described herein. In an example, an apparatus includes a first optical element that is configured to receive light. The apparatus also includes a substrate configured to propagate the light received by the first optical element along a propagation path within the substrate. The substrate includes an input surface and an output surface. The input surface is coupled to the first optical element. The apparatus also includes a second optical element coupled to the output surface and configured to output the light propagated along the propagation path. The second optical element includes a plurality of diffraction gratings at the output surface. Each one of the plurality of diffraction gratings has a corresponding controllable diffraction efficiency.