US Patent Issued to SUN YANG OPTICS DEVELOPMENT on Aug. 26 for "Projection optical system with a concave reflector in the projection lens" (Taiwanese Inventors)

ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,399,422, issued on Aug. 26, was assigned to SUN YANG OPTICS DEVELOPMENT Co. LTD. (Taoyuan, Taiwan).

"Projection optical system with a concave reflector in the projection lens" was invented by Sheng-Che Wu (Taoyuan, Taiwan), Yu-Hung Chou (Taoyuan, Taiwan) and Wei-Hao Huang (Taoyuan, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A projection optical system with a concave reflector in the projection lens, comprising: an image source; a lens group; a reflector; an image and an aperture, the lens group and the reflector form multiple optical paths between the image and image source, each optical path has a chief ray and a marginal ray, the chief ray ...