Using digital cameras as quasi-spectral radiometers to study complex fenestration systems (Discussion letter)

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DOIResolve DOI: http://doi.org/10.1177/1477153508094651
AuthorSearch for:
TypeArticle
Journal titleLighting Research and Technology
Volume41
Issue1
Pages12; # of pages: 2
SubjectComplex fenestration systems, digital camera; Lighting
AbstractThis work discusses the use of digital cameras fitted with absorption filters as quasi-spectral radiometers. By filtering incident light into selected wavelength intervals, accurate estimates of radiances can be made for unknown spectra. This approach is being employed as part of a new video-projection goniophotometer to study the properties of angularly and spectrally selective complex fenestration systems. Complex fenestration systems are increasingly being used to distribute solar radiation purposefully in buildings. They can be utilized to optimize energy performance and enhance daylighting. Radiance estimates from calibrated digital cameras enable the assessment of quasi-spectral, bi-directional scattering distribution functions of total radiance transmitted or reflected by a fenestration system over desired wavelength intervals. A silicon and an indium gallium arsenide digital camera are used to enable measurements across a 380 to 1700 nm wavelength interval.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number51224
20210
NPARC number20374287
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Record identifier6151d54d-00f9-4fb4-9846-420b88ced367
Record created2012-07-23
Record modified2016-05-09
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