ALEXANDRIA, Va., June 16 -- United States Patent no. 12,306,521, issued on May 20, was assigned to Coretronic Corp. (Hsin-Chu, Taiwan).
"Wavelength conversion element and projection device" was invented by Chia-Lun Tsai (Hsin-Chu, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A wavelength conversion element configured to receive an excitation light beam includes: a substrate configured to rotate about a central axis including a wavelength conversion region and a non-wavelength conversion region; and at least one wavelength conversion layer. When the substrate is rotated about the central axis, the non-wavelength conversion region and the wavelength conversion region alternately enter a transmission p...