ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,498,629, issued on Dec. 16, was assigned to Coretronic Corp. (Hsin-Chu, Taiwan).
"Wavelength conversion device and projection device" was invented by Pei-Yu Hsu (Hsin-Chu, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A wavelength conversion device includes a disk, a wavelength conversion material, a light-transmitting counterweight ring, a first adhesive layer and at least one counterweight member. The disk has a central axis and rotates around the central axis as the rotation axis. The wavelength conversion material is arranged on the outer edge of the upper surface of the disk. The light-transmitting counterweight ring is arranged on the uppe...