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, 2026
Filed:
Mar. 18, 2024
Amazon Technologies, Inc., Seattle, WA (US);
Erfan Fard, Tucson, AZ (US);
Pierre-Alexandre Blanche, Tucson, AZ (US);
Benjamin David Chrysler, Tucson, AZ (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
Techniques for improving holographic waveguide efficiency are described. In an example, a waveguide includes a substrate having a first surface and a second surface. The waveguide includes a holographic layer configured to inject, into the substrate as first light, light received at the first surface, diffract a first portion of the first light such that the first portion propagates in a first propagation direction, and diffract a second portion of the first light such that the second portion propagates in a second propagation direction. The waveguide includes a reflective component configured to reflect a remaining portion of the first light as second light from the second surface toward the first surface. The holographic layer is further configured to diffract a first portion of the second light such that the first portion of the second light propagates within the substrate in the first propagation direction.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile