Page 57 - European Energy Innovation - Autumn 2015 publication
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Autumn 2015 European Energy Innovation 57


Figure 1: Experimental set-up Technische Universität Berlin. Left: test room with backlit walls and ceiling, middle: artificial
sky with artificial view, right: light sources realising ‘daylighting’ conditions of the artificial sky (Pictures: Raphael Kirsch
and Stefan Gramm, TU Berlin)

demand related, lighting around pleasant appearances of people luminances can be found in
the user needs to include a and to realize moderate and literature, research needs to look
diffuse component, next to its task supporting shadows. into appropriate diffuseness –
directional one, to guarantee Whereas recommended surfaces directionality ratios. l


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CIE. 2013. CIE 205-2013 Review of Lighting Quality Measures for Interior Lighting with LED Lighting Systems. Vienna.
Commission Internationale de l’Eclairage.

Heerwagen, J. H., and D. R. Heerwagen. “Lighting and psychological comfort.” Lighting Design and Application 16.4 (1986):

Kirsch, R., Völker, S. 2013. Lighting Quality versus Energy Efficiency. In: Proceedings of CIE Centenary Conference “Towards a
New Century of Light”. Paris, France, April 15/16, 2013.

Kirsch R.M (2015) Lighting quality and energy efficiency in office spaces. PhD Thesis Technische Universität Berlin.

Liedtke,C., Völker, S., Knoop, M. (2013) The light direction and directional light - towards a new quantification of an essential
lighting quality criterion. In: CIE (Hrsg.) Proceedings of CIE Centenary Conference „Towards a New Century of Light“ April
15/16, 2013 Paris, 542-551

Loe, L.; Mansfield, K.P.; Rowlands, E. 1994. Appearance of lit environment and its relevance in lighting design: Experimental
study. Lighting Research and Technology. 26. pp. 119–133.

Newsham, G.R.; Marchand, R.G.; Veitch, J.A. 2004. Preferred surface luminances in offices, by evolution. Journal of the
Illuminating Engineering Society. 33. pp. 14–29.

Newsham, G.R., Arsenault, C., Veitch, J.A., Tosco, A.M., Duval, C. (2005) Task lighting effects on office worker satisfaction and
performance, and energy efficiency. Leukos 1(4):7-26.Schofield
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