Biography
Biography: Ming Ronnier Luo
Abstract
With the advanced of LED lighting, it is envisaged that lighting can be used to improve not only our work efficiency but also well-being, including higher sleeping quality, less eye fatigue, better mood. This has become a hot topic called health integrated lighting (HIL). They are related to the human circadian system, which is affected by a newly found photoreceptor, ipRGC, intrinsic photosensitivity Retina Ganglion Cell (ipRGC). More recently, CIE recommended 5 terms in SI unit to measure ipRGC influenced light responses, e.g. Emel, Erd, Esc, Emc, Elc in irradiance. Rea et. al. also proposed CS Circadian Stimulus (CS) to estimate light response directly proportional to nocturnal melatonin suppression. This paper will be focused on the technology required to achieve high quality of HL.