ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,769,102, issued on Oct. 20, was assigned to SEIKO EPSON Corp. (Tokyo).

"Relay system, projection system, and projector" was invented by Eiji Morikuni (Matsumoto, Japan) and Kazuyuki Iinuma (Azumino, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A relay system brings a beam output from a first image plane into focus at a second image plane. The relay system includes a first lens element, a reflection member, and a second lens element sequentially arranged in the direction in which the beam travels. The first lens element has positive power. The reflection member has a transmissive surface that is a concave surface on which the beam is incident and...