ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,414,676, issued on Sept. 16, was assigned to OLYMPUS Corp. (Tokyo).

"Light source device" was invented by Motoki Tabata (Akishima, Japan), Kazunari Hanano (Hachioji, Japan) and Kazuaki Murayama (Kawasaki, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A light source device includes: a plurality of first semiconductor light sources; a condenser lens; and a light guide having a prismatic shape in which an incident surface is on a first side of a central axis direction of the prismatic shape and an emission surface is on a second side of the central axis direction of the prismatic shape, a positional relationship between the plurality of first semic...