A comparison of goniophotometric measurement facilities.

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Abstract

In this paper, we present the preliminary results of a comparison between widely different goniophotometric and goniospectroradiometric measurement facilities. The objective of the comparison is to increase consistency and clarify the capabilities among Danish test laboratories. The study will seek to find the degree of equivalence between the various facilities and methods. The collected data is compared by using a three-way variation of principal component analysis, which is well suited for modelling large sets of correlated data. This method drastically decreases the number of numerical values needed to represent the data. The model shows good agreement with data, while also highlighting the differences between the measurements. We conclude that the method could be useful for comparing large sets of goniophotometric data.
Original languageEnglish
Title of host publicationProceedings of CIE 2016 ”Lighting Quality and Energy Efficiency”
PublisherCIE - International Commission on Illumination
Publication date2016
Pages547-554
ISBN (Print)978-3-902842-65-7
Publication statusPublished - 2016
EventLighting Quality and Energy Efficiency - Melbourne, Australia
Duration: 3 Mar 20165 Mar 2016

Conference

ConferenceLighting Quality and Energy Efficiency
CountryAustralia
CityMelbourne
Period03/03/201605/03/2016

Keywords

  • Goniophotometry
  • Intensity distributions
  • Principal component analysis

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