ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,632, issued on March 17, was assigned to BARCO N.V. (Kortrijk, Belgium).
"Efficient light engine systems" was invented by Mihaela Tarpan (Lochristi, Belgium), Bart Maximus (Oudenaarde, Belgium) and Kristiaan Neyts (Ghent, Belgium).
According to the abstract* released by the U.S. Patent & Trademark Office: "An angle selective filter for a light projection system including a wavelength conversion material illuminated by an excitation light source in a first wavelength range, the wavelength conversion material re-emitting light in a second wavelength range after excitation by the light in the first wavelength range. The filter is configured to have a first average transmission whic...