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A new metric to predict perceived adequacy of illumination

Raynham, P; Unwin, J; Guan, L; (2019) A new metric to predict perceived adequacy of illumination. Lighting Research and Technology 10.1177/1477153519828416. (In press). Green open access

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Abstract

Over recent years, mean room surface exitance has gained acceptance as a predictor of perceived adequacy of illumination. However, it can be argued that mean room surface exitance either cannot be applied or has limited value in a number of practical situations. This paper proposes the use of a new metric, mean indirect cubic illuminance, to be used instead of mean room surface exitance in complex situations commonly found in practice. The paper also demonstrates that mean room surface exitance and average mean indirect cubic illuminance have nearly the same numerical values.

Type: Article
Title: A new metric to predict perceived adequacy of illumination
Open access status: An open access version is available from UCL Discovery
DOI: 10.1177/1477153519828416
Publisher version: https://doi.org/10.1177%2F1477153519828416
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment > Bartlett School Env, Energy and Resources
URI: https://discovery.ucl.ac.uk/id/eprint/10067214
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