US Patent Issued to Meta Platforms Technologies on Feb. 18 for "Sensing with liquid crystal polarization holograms and metasurface" (Washington, Ohio Inventors)

ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,231,749, issued on Feb. 18, was assigned to Meta Platforms Technologies LLC (Menlo Park, Calif.).

"Sensing with liquid crystal polarization holograms and metasurface" was invented by Qing Chao (Redmond, Wash.), Lu Lu (Kirkland, Wash.), Xinqiao Liu (Medina, Wash.), Hao Yu (Kent, Ohio) and Junren Wang (Redmond, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Imaging systems, cameras, and image sensors of this disclosure include imaging pixels that include subpixels. Diffractive optical elements such as a metasurface lens layers or a liquid crystal polarization hologram (LCPH) are configured to focus image light to the subpixels of the imaging pixels....