ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,493,143, issued on Dec. 9, was assigned to Coretronic Corp. (Hsin-Chu, Taiwan).
"Prism module manufacturing method, prism module and projection device" was invented by Fa-Chih Chen (Hsin-Chu, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A prism module manufacturing method includes the following steps of: adjusting a first prism and a second prism to have a predetermined temperature difference; using an adhesive layer to be partially connected between the first prism and the second prism so that there is a gap between the first prism and the second prism, wherein the adhesive layer includes a glue material and a plurality of spacers arranged in t...