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research article
Ray tracing study for non-imaging daylight collectors
2010
This paper presents a novel method to study how well non-imaging daylight collectors pipe diffuse daylight into long horizontal funnels for illuminating deep buildings. Forward ray tracing is used to derive luminous intensity distributions curves (LIDC) of such collectors centered in an arc-shaped light source representing daylight. New photometric characteristics such as 2D flux, angular spread and horizontal offset are introduced as a function of such LIDC. They are applied for quantifying and thus comparing different collector contours.
Type
research article
Web of Science ID
WOS:000278235200012
Authors
Wittkopf, Stephen
•
Grobe, Lars Oliver
•
Geisler-Moroder, David
•
Compagnon, Raphaël
•
•
Linhart, Friedrich
•
Publication date
2010
Published in
Volume
84
Start page
986
End page
996
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
January 25, 2011
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