People are getting more aware of how natural lighting affects the body as well as the psychological feelings. Lighting design and LED technology also address how the artificial light source can mimic the light in the nature. But how do we measure the “naturalness” of light? Bridgelux introduced a new metric to quantify the naturalness. Bridgelux announced that it has developed a new metric to enable objective comparison of light sources to natural light, since standard lighting quality metrics such as CRI and TM-30 do not fully address the naturalness. The LED...