US Patent Issued to Amazon Technologies on June 30 for "Balancing and improving holographic waveguide efficiency" (Arizona Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,776, issued on June 30, was assigned to Amazon Technologies Inc. (Seattle).

"Balancing and improving holographic waveguide efficiency" was invented by Erfan Fard (Tucson, Ariz.), Pierre-Alexandre Blanche (Tucson, Ariz.) and Benjamin David Chrysler (Tucson, Ariz.).

According to the abstract* released by the U.S. Patent & Trademark Office: "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 ...