Investigation of Visual Perception under Dynamic Color Rendering Modulation for Augmented Energy Savings

摘要

Digitally controlled lighting systems equipped with colored LEDs can produce a range of different qualities of light, adjustable to users' requirements. In this context, we explore a novel lighting control concept which involves a strategic control of RYGB LEDs forming white light, employed to increase energy efficiency. This paper reports and discusses the results of an ongoing research project applying the principles of color rendering modulation for energy savings, which encompasses two main domains: (a) a tunable LED light source with accompanying control software; and (b) human factors studies concerning how surfaces and spaces are perceived under a light source with changing color rendering. Results so far have supported the two fundamental hypotheses: (a) when fully developed, color rendering modulation could potentially enable power reductions of at least 25%; (b) the majority of subjects did not detect the color changes.