The Properties of our Everyday Spectral Microclimate

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Title: The Properties of our Everyday Spectral Microclimate
Authors: Kenny, PaulMardaljevic, JohnHopfe, Christina
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Date: 13-Apr-2018
Online since: 2019-08-29T08:52:32Z
Abstract: The CIE illuminant D65 is widely adopted as defining the standard spectral power distribution (SPD) for ‘average’ daylight. Thus daylight indoors is generally assumed to approximate the SPD for D65. The weight of research on the non-visual effects of light now suggests that a key consideration for the long-term health and well-being of occupants should be the amount, duration, timing and, importantly, the spectral profile of illumination received at the eye. Measurements of the SPD of illumination were made at a number of locations outdoor and indoors. In an outdoor environment, the spectral properties of the visible sky dictate the resultant SPD largely irrespective of the surrounding built environment. Only those indoor locations with close proximity to windows exhibit a spectral microclimate comparable to daylight, while all others are dominated by the artificial light sources. Early findings indicate the need to carry out further research to more clearly understand the experienced spectral microclimate.
Type of material: Conference Publication
Publisher: Chartered Institute of Building Services Engineers
Keywords: DaylightSpectral profile distribution (SPD)Circadian entrainmentStandard illuminantsSpectrometry
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Language: en
Status of Item: Peer reviewed
Conference Details: CIBSE: 8th Annual CIBSE Technical Symposium, London South Bank University (LSBU), UK, 12–13 April 2018
Appears in Collections:Architecture, Planning and Environmental Policy Research Collection

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