Hotspots in cylindrical mirror light pipes: Description and removal

Swift, PD; Smith, GB; Franklin, J; Edmonds, IR; Carter, DJ

Hotspots in cylindrical mirror light pipes: Description and removal

Swift, PD Smith, GB

Franklin, J Edmonds, IR Carter, DJ

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Publication Type:: Journal Article
Citation:: Lighting Research and Technology, 2006, 38 (1), pp. 19 - 31
Issue Date:: 2006-03-20

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Field	Value	Language
dc.contributor.author	Swift, PD	en_US
dc.contributor.author	Smith, GB https://orcid.org/0000-0002-6985-2880	en_US
dc.contributor.author	Franklin, J	en_US
dc.contributor.author	Edmonds, IR	en_US
dc.contributor.author	Carter, DJ	en_US
dc.date.issued	2006-03-20	en_US
dc.identifier.citation	Lighting Research and Technology, 2006, 38 (1), pp. 19 - 31	en_US
dc.identifier.issn	1477-1535	en_US
dc.identifier.uri	http://hdl.handle.net/10453/4152
dc.description.abstract	The transmittance and irradiance distribution at the exit aperture of a cylindrical mirror light pipe (MLP) have been measured and calculated for the cases of collimated and diffuse inputs. MLPs are an example of a nonimaging optical system that can concentrate light, which may give rise to problematic hotspots and glare either on any diffuser used at the exit aperture or in the illuminated room. It is shown in this work that use of a diffuser at the entrance aperture overcomes these problems without a marked reduction in transmission of a typical MLP. © The Chartered Institute of Building Services Engineers 2006.	en_US
dc.relation.ispartof	Lighting Research and Technology	en_US
dc.relation.isbasedon	10.1191/1365782806li151oa	en_US
dc.subject.classification	Building & Construction	en_US
dc.title	Hotspots in cylindrical mirror light pipes: Description and removal	en_US
dc.type	Journal Article
utslib.citation.volume	1	en_US
utslib.citation.volume	38	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
utslib.for	1201 Architecture	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	closed_access
pubs.issue	1	en_US
pubs.publication-status	Published	en_US
pubs.volume	38	en_US

Abstract:

The transmittance and irradiance distribution at the exit aperture of a cylindrical mirror light pipe (MLP) have been measured and calculated for the cases of collimated and diffuse inputs. MLPs are an example of a nonimaging optical system that can concentrate light, which may give rise to problematic hotspots and glare either on any diffuser used at the exit aperture or in the illuminated room. It is shown in this work that use of a diffuser at the entrance aperture overcomes these problems without a marked reduction in transmission of a typical MLP. © The Chartered Institute of Building Services Engineers 2006.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/4152