Multi-Channel LED Luminaires: An Object-Oriented Approach for Retail Lighting Based on the SOR Framework

Kaveh Ahmadian Tazehmahaleh, Hamideh Godazgar, Kevin AG Smet and Peter Hanselaer
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Kaveh Ahmadian Tazehmahaleh: ESAT-WaveCore/Light&Lighting Laboratory, KU Leuven, 9000 Gent, Belgium
Hamideh Godazgar: R&D Department, Noorsaform Lighting Engineering, Co., Tehran 1587776418, Iran
Kevin AG Smet: ESAT-WaveCore/Light&Lighting Laboratory, KU Leuven, 9000 Gent, Belgium
Peter Hanselaer: ESAT-WaveCore/Light&Lighting Laboratory, KU Leuven, 9000 Gent, Belgium

Sustainability, 2022, vol. 14, issue 10, 1-17

Abstract: In this paper, a method to find the optimum spectrum for the illumination of objects in a retail environment is presented. A variety of familiar objects are illuminated with a number of illuminants of a predefined Correlated Color Temperature (CCT) of 3000 K, strategically selected from the entire range of metamers, which can be generated by the multi-channel luminaire under test. The solution space has been derived by solving basic colorimetric equations using a brute force method. In a paired comparison experiment, observers had to select the most “attractive” appearance for the presented objects. The results illustrate that objects may indeed appear more attractive for a statistically meaningful number of observers under a particular lighting condition. Assuming attractiveness of an object as a stimulus in the SOR framework, this approach facilitates the generation and the selection of the “optimum” spectrum based on the goals of the stakeholders in retail lighting applications.

Keywords: LED; SOR framework; lighting; color rendering; memory color (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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