US Patent Issued to LG Chem on April 7 for "Holographic optical device and manufacturing method therefor" (South Korean Inventors)

ALEXANDRIA, Va., April 7 -- United States Patent no. 12,596,326, issued on April 7, was assigned to LG Chem Ltd. (Seoul, South Korea).

"Holographic optical device and manufacturing method therefor" was invented by Sung Yeon Kim (Daejeon, South Korea), Min Soo Song (Daejeon, South Korea), So Young Choo (Daejeon, South Korea) and Hye Won Hwang (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "An embodiment of the present disclosure provides a holographic optical element and a manufacturing method of a holographic optical element including holographic gratings, the manufacturing method including: a step (a) of forming a photosensitive substrate by coating one surface of a substrate with a pho...