ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,769,099, issued on Oct. 20, was assigned to SUN YANG OPTICS DEVELOPMENT Co. LTD. (Taoyuan City, Taiwan).

"Fixed focus projection lens" was invented by Sheng Da Jiang (Taoyuan City, Taiwan), Yu Hung Chou (Taoyuan City, Taiwan) and Sheng Che Wu (Taoyuan City, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fixed focus projection lens, from the magnifying side to the narrowing side of the lens sequentially comprising: a front lens group and a rear lens group, the front lens group has 8 to 11 lenses, the front lens group has a front aspherical lens, the rear lens group has 8 to 11 lenses, the rear lens group has a rear aspherical lens, for satisfyin...