US Patent Issued to OMNIVISION TECHNOLOGIES on April 21 for "Polarization filter for autofocus pixel structures having symmetric apertures" (California Inventors)

ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,794, issued on April 21, was assigned to OMNIVISION TECHNOLOGIES INC. (Santa Clara, Calif.).

"Polarization filter for autofocus pixel structures having symmetric apertures" was invented by Qin Wang (San Jose, Calif.), Chin Poh Pang (Pleasanton, Calif.) and Gang Chen (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Image sensors and devices for phase-detection auto focus processes are provided. A symmetric polarization filter includes a first polarizer defining a first plurality of apertures and a second polarizer adjacent with the first polarizer defining a second plurality of apertures. The first plurality of apertures can be mirro...