ALEXANDRIA, Va., June 19 -- United States Patent no. 12,332,555, issued on June 17, was assigned to Coretronic Corp. (Hsin-Chu, Taiwan).

"Optical engine module for dissipating heat generated by off-state beam and projection device using the same" was invented by Mao-Min Fu (Hsin-Chu, Taiwan) and Chien-Ming Peng (Hsin-Chu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical engine module used in a projection device and configured to generate an image beam includes a housing and a plate. The housing has a surrounding side wall and a bottom wall connected to each other. The bottom wall has a first opening. The surrounding side wall has an off-state beam irradiation zone adjacent to the first openin...