ALEXANDRIA, Va., July 3 -- United States Patent no. 12,349,251, issued on July 1, was assigned to LED Smart Inc. (Surrey, Canada).
"Controlled lighting system" was invented by Xinxin Shan (Surrey, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "The combined color of a color tunable and intensity adjustable light source can be quantitatively described using the chromaticity diagram. With a preset color, or dominant wavelength, and daily light interval, the microprocessor in this plant growing system can compare the calculated chromaticity diagram data from the corresponding sensor with this preset color value and fine tune the combined color until these two are matched. The microprocessor then can contr...