ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,523,847, issued on Jan. 13, was assigned to Young Optics Inc. (Hsinchu, Taiwan).

"Optical lens comprising four lenses having an effective focal length" was invented by Wei-Ting Chiu (Hsinchu, Taiwan) and Chien-Hsiung Tseng (Hsinchu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical lens includes an aperture, a first lens, a second lens, a third lens, and a fourth lens sequentially in a direction. One of the first lens and the second lens has positive refracting power, and the other has negative refracting power. The third lens has refracting power, and is a lens with a largest diameter in the optical lens. The fourth lens has the refracti...