US Patent Issued to ALPS ALPINE on Oct. 21 for "Method for manufacturing optical element, optical element, aerial image display device, and spatial input device" (Japanese Inventors)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,568, issued on Oct. 21, was assigned to ALPS ALPINE Co. LTD. (Tokyo).

"Method for manufacturing optical element, optical element, aerial image display device, and spatial input device" was invented by Katsunari Ashimine (Fukushima, Japan), Shingo Yuza (Fukushima, Japan), Chihiro Oshima (Fukushima, Japan), Hirokuni Fukai (Osaki, Japan) and Kazuya Hikichi (Fukushima, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for manufacturing an optical element includes forming an optical element unit comprised of an optical material such as glass and having an outer shape of a regular triangle or a regular hexagon, arranging a plurality of optical...