US Patent Issued to SEIKO EPSON on Aug. 4 for "Relay system and projector" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,699,250, issued on Aug. 4, was assigned to SEIKO EPSON Corp. (Tokyo).

"Relay system and projector" was invented by Eiji Morikuni (Matsumoto, Japan) and Kana Hatano (Matsumoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A relay system includes a first lens group formed of a plurality of lenses and having positive power, a second lens group including a diaphragm and at least one negative lens and having negative power, and a third lens group formed of a plurality of lenses and having positive power. The number of lenses of the first lens group and the number of lenses of the third lens group are equal to each other. The arrangement of the lens po...