Experts' quantitative and qualitative assessments of lighting quality

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ConferenceIlluminating Engineering Society of North America 1996 Annual Conference: 05 August 1996, Cleveland, Ohio, U.S.A.
Pages117; # of pages: 17
SubjectLighting; Lighting; Eclairage
AbstractAs part of ongoing lighting quality research, lighting experts in design and research were given the opportunity to judge the lighting quality of nine lighting designs for a windowless open-plan office. The nine lighting conditions are defined by a 3 x 3 matrix of levels of lighting power density and lighting quality as defined by designers (designers' lighting quality, DLQ). The nine lighting designs were created by a panel of Canadian lighting designers and illuminating engineers, who provided the initial definitions of low, medium, and high DLQ for typical contemporary mid-grade offices. Renderings of the space as it would appear in each condition were created using Radiance (TM). Packages including ceiling layouts, equipment specifications, photometric data, illuminance calculations, and colour photocopies of the renderings were mailed to forty lighting experts in North America, Europe, Australia, and New Zealand. The experts rated the appearance of the space on five semantic differential scales and then rated its overall lighting quality on a scale of 1 to 9. Agreement about the lighting quality of the designs was poor, but improved when the data from North Americans and Non-North Americans were examined separately. The results are discussed in terms of their implications for the development of standards and for future research.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number39874
NPARC number20329795
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Record identifier9e7b3942-7029-4e97-89b7-cf9005a48bd5
Record created2012-07-18
Record modified2016-05-09
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