US Patent Issued to Meta Platforms Technologies on Jan. 27 for "Transmissive optical element based on reflective volumetric gratings" (Washington Inventors)

ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,535,682, issued on Jan. 27, was assigned to Meta Platforms Technologies LLC (Menlo Park, Calif.).

"Transmissive optical element based on reflective volumetric gratings" was invented by Pavel Trochtchanovitch (Redmond, Wash.), Yusufu Njoni Bamaxam Sulai (Snohomish, Wash.) and Zhisheng Yun (Sammamish, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A transmissive optical element includes first and second reflective volumetric gratings that redirect an impinging light beam in a first wavelength range from the first grating to the second grating by reflective diffraction, and from the second grating out of the transmissive optical element, also by refl...