ALEXANDRIA, Va., June 19 -- United States Patent no. 12,332,468, issued on June 17, was assigned to Arizona Board of Regents on Behalf of the University of Arizona (Tucson, Ariz.).
"Systems and methods for manufacturing and replicating holographic optical elements and holographic waveguide couplers" was invented by Benjamin D. Chrysler (Tucson, Ariz.), Jianbo Zhao (Tucson, Ariz.) and Raymond K. Kostuk (Tucson, Ariz.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and systems are described that enable manufacturing of holograms with high spatial frequencies and allow composite master holograms to be formed in reflection configurations. An example system for replicating transmission-type holographic ele...