Visual experiment on LED lighting quality with color quality scale colored samples

Nicolas Pousset (1) , Gaël Obein (1) , Annick Razet (1)

1 LCM - Laboratoire commun de métrologie LNE-CNAM

A psychophysical experiment developed to evaluate light quality of Light Emitting Diodes (LEDs) is described. It is based on coloured samples used in the “Color Quality Scale” (CQS) proposed by the NIST to replace the “Colour Rendering Index” (CRI). Predictions of the CQS and results from visual measurements are compared.

Mots clés: Light Emitting Diode; quality of light; Color Rendering Index; Color Quality Scale; Visual measurements; Paired comparisons protocol; Law of comparative judgment

Domaines: Optique [physics.optics]

Nicolas Pousset, Gaël Obein, Annick Razet. Visual experiment on LED lighting quality with color quality scale colored samples. CIE 2010 : Lighting Quality and Energy Efficiency, Mar 2010, Vienne, Austria. pp.722-729. ⟨hal-00472329⟩