Human Centric Lighting design in the international context - Human Centric Lighting design nel contesto internazionale

To date there is no general consensus on the applicability of scientific discoveries concerning the non-visual effects (non image forming, NIF) of artificial light in the practice of lighting design. Even before the discovery of melanopsin and intrinsically photosensitive ganglion cells (ipRGC), there were differences of opinion between those who wanted this new information on the NIF effects of light entered immediately in the practice of lighting design, and those who instead advocated a more cautious approach requesting to continue research in this area, both to assess the beneficial effects and to avoid any negative consequences not yet highlighted by research. This split still exists, although the scientific evidence of the NIF effects has increased as well as the number of those who believe that a new way of lighting can be realised today, thanks also to new lighting technologies. The 2017 Nobel Prize in Medicine is a testament to the scientific importance of circadian rhythms. In this essay we analyse the current situation in this sector with reference to international bodies whose decisions have repercussions in the lighting industry