ALEXANDRIA, Va., March 5 -- United States Patent no. 12,243,966, issued on March 4, was assigned to EPISTAR Corp. (Hsinchu, Taiwan).
"Light-emitting device" was invented by Heng-Ying Cho (Hsinchu, Taiwan), Li-Yu Shen (Hsinchu, Taiwan), Chih-Hao Chen (Hsinchu, Taiwan) and Keng-Lin Chuang (Hsinchu, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A light-emitting device comprises a semiconductor stack emitting a light with a peak wavelength Lambda; and a light field adjustment layer formed on the semiconductor stack, wherein the light field adjustment layer comprises a plurality of first layers and a plurality of second layers alternately stacked on top of each other, the plurality of first layers each co...