ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,836, issued on Jan. 20, was assigned to FUJIFILM Corp. (Tokyo).
"Transmissive liquid crystal diffraction element" was invented by Yukito Saitoh (Minamiashigara, Japan), Hiroshi Sato (Minamiashigara, Japan), Takashi Yonemoto (Minamiashigara, Japan), Jun Watanabe (Minamiashigara, Japan), Mitsuyoshi Ichihashi (Minamiashigara, Japan) and Keisuke Kodama (Minamiashigara, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A transmissive liquid crystal diffraction element includes a first optically-anisotropic layer and a second optically-anisotropic layer each of which has a liquid crystal alignment pattern in which a direction of an optical axis derived...