Review Paper: Innovative daylighting: Review of systems and evaluation methods

  title={Review Paper: Innovative daylighting: Review of systems and evaluation methods},
  author={Paul J. Littlefair},
  journal={Lighting Research \& Technology},
  pages={1 - 17}
  • P. Littlefair
  • Published 1 March 1990
  • Engineering
  • Lighting Research & Technology
New day lighting systems such as the light pipe, light shelf, mirrored louvres and prismatic glazing have two main objectives: to bring daylight deeper into a space, and to control and distribute direct sunlight so that this can be used as an effective working illuminant. While a large number of devices has been proposed, little has been done to show rigorously whether they do in fact save energy or improve the internal environment. This paper describes the available systems and gives initial… 

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