US Patent Issued to Young Optics on July 21 for "Projection lens" (Taiwanese Inventors)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,687,693, issued on July 21, was assigned to Young Optics Inc. (Hsinchu, Taiwan).

"Projection lens" was invented by Shuo-Chieh Chang (Hsinchu, Taiwan), Ching-Lung Lai (Hsinchu, Taiwan), Hsin-Te Chen (Hsinchu, Taiwan) and Kuo-Chuan Wang (Hsinchu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure provides a projection lens including a first lens set and a second lens set disposed sequentially from a magnified side to a reduced side. The first lens set and the second lens set are separated by a minimum inner diameter of a lens barrel. The first lens set includes 4 to 6 spherical lenses, and a refractive power of the first lens set is nega...