Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

Moving clouds on a virtual sky affect well-being and subjective tiredness positively

: Stefani, Oliver; Bues, Matthias; Pross, Achim; Mebben, Sandra; Westner, Philipp; Dudel, H.; Rudolph, H.

International Commission on Illumination -CIE-, Wien:
CIE 2012 "Lighting Quality and Energy Efficiency". Proceedings : 19 - 21 September 2012; Hangzhou, China
Vienna: CIE, 2012
ISBN: 978-3-902842-42-8
ISBN: 3-902842-42-3
Lighting Quality & Energy Efficiency Conference <2012, Hangzhou>
Conference Paper
Fraunhofer IAO ()

To investigate the hypothesis that a simulation of natural daylight such as a sky with moving clouds would be desirable in offices and if this reproduction increases well-being and reduces subjective tiredness, we developed a luminous ceiling (Virtual Sky) and examined 30 test persons for three times during three weeks. In this paper we provide a technical description of Virtual Sky and the test conditions. We compared static light to two different dynamic lighting conditions. Our findings indicate that the acceptance of dynamic lighting depends on the performed tasks. Furthermore, for test candidates without access to natural daylight, subjective tiredness after one working day was significantly lower under a cloud animation compared to static light. Well-being decreased significantly less under a cloud animation compared to static light.