ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,216,378, issued on Feb. 4, was assigned to NEC Corp. (Tokyo).
"Projection device and projection method" was invented by Koya Takata (Tokyo), Hisashi Mizumoto (Tokyo) and Fujio Okumura (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A projection device a includes a light source that emits parallel light, a spatial light modulator that has a modulation part that modulates a phase of the parallel light emitted from the light source, a liquid crystal projection lens that includes a liquid crystal region on which modulated light modulated by the spatial light modulator is incident and that projects the modulated light in a lens region dynamica...