Zusammenfassung
Medizinische und biologische Studien in den letzten Jahren haben gezeigt, dass kurzwelliges Licht einen großen Einfluss auf den menschlichen Organismus haben kann. Neben dem Einsatz von LEDs in Computerbildschirmen ermöglichen dynamische Veränderungen der Lichtfarbe sowie des Dimmzustandes in der Allgemeinbeleuchtung eine Annäherung an das Tageslicht. Werden diese Systeme zusätzlich mit Sensorik ausgestattet, kann der Nutzer bei der Ausführung seiner Aufgaben unaufdringlich unterstützt werden. Neben den potenziellen Chancen kann der Eingriff in das innere Zeitsystem des Menschen mit biologisch wirksamem Licht auch mit Risiken verbunden sein, z. B. Chaos in der Zeitstruktur biologischer Körperrhythmen verursachen. Ein möglicher Lösungsansatz besteht in AmI-basierten Beleuchtungssystemen (Ambient Intelligence), welche das Potenzial besitzen, Gesundheitsrisiken auszuschließen und positive Wirkungen nutzbar zu machen.
Abstract
Recent experiments have shown that light can have strong impacts on human physiology: LED-backlit displays can increase our cognitive performance and reduce sleepiness (Stefani et al. 2010). Virtual clouds on a luminous ceiling can decrease tiredness and enhance well-being (Stefani et al. 2012). With additional sensors that sense the state of a user and his working environment, lighting environments can autonomously suit a user’s condition and his needs (AmI-based lighting).
On the other hand artificial light can also cause chaos in our circadian rhythms (Wyse 2011). Erren (2009) describes this condition as circadian disruption. Usually circadian rhythms are synchronized with the 24h day-night cycle (Erren 2009). Exposure to artificial light that is contrary to this cycle can affect our sleep and cause physiological discomfort. Effects caused by artificial light are complex and we do not yet fully understand the risks. AmI-based lighting systems can avoid health risks, promote positive effects and be energy efficient at the same time.
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Stefani, D.O., Krüger, J. Chancen und Risiken zukunftsweisender Beleuchtungssysteme. Z. Arb. Wiss. 67, 175–180 (2013). https://doi.org/10.1007/BF03374405
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DOI: https://doi.org/10.1007/BF03374405