Fotios, S., Cheal, C. and Boyce, P.R. (2005) Light source spectrum, brightness perception and visual performance in pedestrian environments: A review. Lighting Research and Technology, 37 (4). 271 - 294. ISSN 1477-1535
Abstract
This review considers the impact of light source spectral power distribution (SPD) on brightness perception and visual performance in mesopic conditions, with emphasis on the comparison of metal halide (MH) and high pressure sodium (HPS) lamps. Models of mesopic vision predict that SPD is a significant variable in that at a HPS photopic luminance of 0.100 cd/m, MH need only produce about 0.070-0.075 cd/m to be seen as equally bright. However, attempts to validate the predictions of these models in the field have met with mixed success. As for visual performance, experimentation has shown that there are effects of SPD in mesopic conditions, but the magnitude of these effects depends on the nature of the task. Three alternative approaches are suggested for comparing light sources with different SPDs in mesopic conditions. © The Chartered Institution of Building Services Engineers 2005.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2005 Sage. This is an author produced version of a paper subsequently published in Lighting Research and Technology. Uploaded in accordance with the publisher's self-archiving policy. |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Social Sciences (Sheffield) > School of Architecture (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 04 Dec 2013 15:08 |
Last Modified: | 04 Dec 2013 15:08 |
Published Version: | http://dx.doi.org/10.1191/1365782805li146ed |
Status: | Published |
Publisher: | Sage |
Identification Number: | 10.1191/1365782805li146ed |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:76673 |