With the ongoing evolution of LED technology, particularly the advancements in Yujileds® phosphors, we have positioned ourselves as leaders in LED spectroscopy engineering. Yujileds® is the first in the world to successfully simulate and commercialize CIE illuminants using a single LED.

CIE Illuminant D50 is a standardized reference light source developed by the International Commission on Illumination (CIE) to represent average daylight conditions at a color temperature of 5000K. Widely used in color matching, quality control, and color reproduction, it serves as a benchmark in industries such as graphic arts, printing, and photography. As a cornerstone of color science, CIE Illuminant D50 plays a pivotal role in ensuring consistent and reliable color communication across various visual media.