Light during the day and darkness at night are crucial factors for proper entrainment of the
human circadian system to the solar 24-h day. However, modern life and work styles have …

Nighttime melatonin suppression is the most commonly used method to indirectly quantify
acute nonvisual light effects. Since light is the principal zeitgeber in humans, there is a need …

Light can be used to facilitate alertness, task performance and circadian adaptation during
night work. Novel strategies for illumination of workplaces, using ceiling mounted LED …

Electric lighting has decreased dependence on natural light to illuminate the workplace.
Humans are genetically predisposed to be day-oriented (diurnal) and depend on daylight to …

It is well known that exposure to light at the right time of the day is important to synchronise
our circadian rhythm and enhance cognitive functioning. There is, however, a lack of field …

We present in this work a method to design lighting sources that can be adapted to different
temperatures of color and, simultaneously, with a tunable circadian character. We obtained …

Featured Application Nonvisual lighting design for shift work. Abstract Chronodisruption
deteriorates the health and wellbeing of shift workers. Artificial light at night and the lack of …

In the modern solid state lighting for homes and workplaces, colour rendition, lumen
efficiency, intensity, are not the only parameters. There is a huge paradigm shift with the …

Visible light is the principal stimulus for resetting the mammalian central circadian
pacemaker. Circadian phase resetting is most sensitive to short-wavelength (blue) visible …

Hintergrund Helles Licht mit hohem Blauanteil kann die Wachheit erhöhen und
rhythmusverschiebend wirken. Maß für diese biologischen, nicht-visuellen Funktionen ist die …