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Discomfort glare and time of day

Kent, Michael G.; Altomonte, Sergio; Tregenza, Peter R.; Wilson, Robin

Authors

Michael G. Kent

Sergio Altomonte

Peter R. Tregenza

Robin Wilson



Abstract

There are strong reasons to suspect that glare sensation varies with time of the day. This study was designed to test whether such a relationship exists. Thirty subjects were exposed to an artificial lighting source at four times of the day. The source luminance was progressively increased and subjects were required to give Glare Sensation Votes (GSVs) corresponding to the level of visual discomfort experienced. Glare indices were calculated for every reported GSV, and results were statistically analysed. The findings indicated a tendency towards greater tolerance to luminance increases in artificial lighting as the day progresses. This trend was found not to be statistically related to the possible confounding variable of learning, providing evidence of an effect of time of the day on glare sensation.

Journal Article Type Article
Journal Lighting Research and Technology
Print ISSN 1477-1535
Electronic ISSN 1477-0938
Publisher SAGE Publications (UK and US)
Peer Reviewed Peer Reviewed
Volume 47
Issue 6
APA6 Citation Kent, M. G., Altomonte, S., Tregenza, P. R., & Wilson, R. (in press). Discomfort glare and time of day. Lighting Research and Technology, 47(6), doi:10.1177/1477153514547291
DOI https://doi.org/10.1177/1477153514547291
Keywords Glare, Tolerance, Time of the Day, Controlled Experiment, Learning
Publisher URL http://lrt.sagepub.com/content/47/6/641
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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