Novel high performance scattering materials for use in energy saving light fittings and skylights based on polymer pigmented with polymer

Smith, GB; Earp, A; Franklin, J; McCredie, G

Novel high performance scattering materials for use in energy saving light fittings and skylights based on polymer pigmented with polymer

Smith, GB

Earp, A Franklin, J McCredie, G

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Publication Type:: Conference Proceeding
Citation:: Proceedings of SPIE - The International Society for Optical Engineering, 2001, 4458 pp. 10 - 18
Issue Date:: 2001-12-01

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Field	Value	Language
dc.contributor.author	Smith, GB https://orcid.org/0000-0002-6985-2880	en_US
dc.contributor.author	Earp, A	en_US
dc.contributor.author	Franklin, J	en_US
dc.contributor.author	McCredie, G	en_US
dc.date.issued	2001-12-01	en_US
dc.identifier.citation	Proceedings of SPIE - The International Society for Optical Engineering, 2001, 4458 pp. 10 - 18	en_US
dc.identifier.issn	0277-786X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/10683
dc.description.abstract	Simple quantitative performance criteria are developed for translucent materials in terms of hemispherical visible transmittance, and angular spread of transmitted luminance using a half angle. Criteria are linked to applications in luminaires and skylights with emphasis on maximising visible throughput while minimising glare. These basic criteria are also extended to angle of incidence changes which are substantial. Example data is provided showing that acrylic pigmented with spherical polymer particles can have total hemispherical transmittance with weak thickness dependence which is better than clear sheet, while the spread of transmitted light is quite thickness sensitive and occurs over wider angles than inorganic pigments. This combination means significantly fewer lamps can achieve specified lux levels with low glare, and smaller skylights can provide higher more uniform daylight illuminance.	en_US
dc.relation.ispartof	Proceedings of SPIE - The International Society for Optical Engineering	en_US
dc.relation.isbasedon	10.1117/12.448254	en_US
dc.title	Novel high performance scattering materials for use in energy saving light fittings and skylights based on polymer pigmented with polymer	en_US
dc.type	Conference Proceeding
utslib.citation.volume	4458	en_US
utslib.for	1007 Nanotechnology	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	0205 Optical Physics	en_US
dc.location.activity	San Diego	en_US
dc.location.activity	SAN DIEGO, CA
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
utslib.copyright.status	open_access
pubs.publication-status	Published	en_US
pubs.volume	4458	en_US

Abstract:

Simple quantitative performance criteria are developed for translucent materials in terms of hemispherical visible transmittance, and angular spread of transmitted luminance using a half angle. Criteria are linked to applications in luminaires and skylights with emphasis on maximising visible throughput while minimising glare. These basic criteria are also extended to angle of incidence changes which are substantial. Example data is provided showing that acrylic pigmented with spherical polymer particles can have total hemispherical transmittance with weak thickness dependence which is better than clear sheet, while the spread of transmitted light is quite thickness sensitive and occurs over wider angles than inorganic pigments. This combination means significantly fewer lamps can achieve specified lux levels with low glare, and smaller skylights can provide higher more uniform daylight illuminance.

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http://hdl.handle.net/10453/10683