US Patent Issued to A9.com on Nov. 3 for "Volume holographic optical elements with expanded angular acceptance" (Arizona Inventor)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,782,868, issued on Nov. 3, was assigned to A9.com Inc. (Palo Alto, Calif.).

"Volume holographic optical elements with expanded angular acceptance" was invented by Arkady Bablumyan (Tucson, Ariz.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein are VHOEs with expanded acceptance angle ranges as well as various systems and methods for fabricating VHOEs with expanded acceptance angle ranges. The VHOE with expanded acceptance angle range may include two or more individual Bragg gratings. The two or more individual Bragg gratings have the same diffraction geometry but with shifted Bragg conditions. Having the same diffraction geometry means whe...