ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,724,151, issued on Sept. 1, was assigned to SCREEN Holdings Co. Ltd. (Kyoto, Japan).

"Optical scanning apparatus, object recognition apparatus and optical scanning method" was invented by Yuki Ashida (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The spatial phase modulation element is a so-called grating light valve for modulating the phase of light by displacing the ribbons. If the measurement light beam Lm (measurement light) is incident on such a spatial phase modulation element, the measurement light beam Lm is emitted in a direction corresponding to the displacement mode of the ribbons. That is, an emission direction of the measureme...