User evaluation of eight led light sources with different special colour rendering indices R9

Jakob Markvart, Anne Iversen, Asta Logadottir, Dennis Dan Corell, Anders Thorseth, Carsten Dam-Hansen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

In this study we evaluated the influence of the special colour rendering index R9 on subjective red colour perception and Caucasian skin appearance among untrained test subjects. The light sources tested are commercially available LED based light sources with similar correlated colour temperature and general colour rendering index, but with varying R9. It was found that the test subjects in general are more positive towards light sources with higher R9. The shift from a majority of negative responses to a majority of positive responses is found to occur at R9 values of ~20.
Original languageEnglish
Title of host publicationProceedings of CIE Centenary Conference „Towards a New Century of Light“ : CIE x038:2013
PublisherCIE - International Commission on Illumination
Publication date2013
Pages496-505
ISBN (Print)978-3-902842-44-2
Publication statusPublished - 2013
EventCIE Centenary Conference: Towards a New Century of Light - Conservatoire National des Arts et Métiers, Paris, France
Duration: 12 Apr 201319 Apr 2013
http://www.cie.co.at/index.php/LEFTMENUE/CIE+Newsletter/Artikel+4+Sept+12

Conference

ConferenceCIE Centenary Conference
LocationConservatoire National des Arts et Métiers
CountryFrance
CityParis
Period12/04/201319/04/2013
Internet address

Bibliographical note

Paper: PP008. Oral presentation.

Keywords

  • Photometry
  • Colour Rendering
  • R9
  • Skin colour appearance

Cite this

Markvart, J., Iversen, A., Logadottir, A., Corell, D. D., Thorseth, A., & Dam-Hansen, C. (2013). User evaluation of eight led light sources with different special colour rendering indices R9. In Proceedings of CIE Centenary Conference „Towards a New Century of Light“: CIE x038:2013 (pp. 496-505). CIE - International Commission on Illumination.