Dynamic color control in multiprimary tunable LED lighting systems.

Temporally dynamic tunable light‐emitting diode (LED) lighting systems offer multiple spectral degrees of freedom and enable the creation of composite light spectra with a wide range of perceptual characteristics. Connecting existing metrics and ongoing research, this paper introduces relevant measures of quality of light, color, and temporal performance characteristics, including color rendition, circadian stimulation potential, and temporal smoothness and speed. Multiprimary system models describing both colorimetric and spectral characteristics are explained, along with colorimetric‐plus multiprimary intensity solutions that allow optimization of any of these quality of light characteristics in addition to ensuring a colorimetric match. Three commercial multiprimary LED systems are modeled to show examples of spectral solutions for different colorimetric‐plus optimization goals, and their range of performance are discussed. The diversity of results shows both the need for usable optimization tools and the need for clear communication standards about quality of light when light sources are capable of much more than typical fixed‐color lights. [ABSTRACT FROM AUTHOR]