ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,416,392, issued on Sept. 16.
"Artificial sunlight lighting luminaires for indoor environments" was invented by Wei Li (Tampere, Finland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lighting system and luminaire replicates attributes of natural sunlight and the sky. An array of light emitters capable of emitting light closely mimicking natural sunlight. This emitted light features an adjustable correlated color temperature (CCT) that spans from 1900 K to 6500 K, faithfully reproducing the Sun's appearance across different times of the day. To ensure precision in spectral matching, the system operates within a defined wavelength range of 400 nm to 14...