US Patent Issued to SEIKO EPSON on July 8 for "Phosphor wheel, light source apparatus, and projector" (Japanese Inventors)

ALEXANDRIA, Va., July 9 -- United States Patent no. 12,352,950, issued on July 8, was assigned to SEIKO EPSON Corp. (Tokyo).

"Phosphor wheel, light source apparatus, and projector" was invented by Kosuke Tabayashi (Azumino, Japan) and Norikazu Kadotani (Azumino, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A phosphor wheel includes a wheel element including a disk-shaped substrate having a first surface and a second surface opposite from the first surface, an annular phosphor disposed at the first surface on a circle around the center of the substrate, and a plurality of fins disposed at the second surface and extending outward from the side facing the center of the substrate, and a balance corrector...