Introduction to a study of preferred colour rendering of light sources

Schanda, J.; Csuti, Péter; Szabó, Ferenc; Bhusal, Pramod; Halonen, Liisa

doi:10.1177/1477153513514426

Cited by 7 publications

(9 citation statements)

References 14 publications

(11 reference statements)

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“…The more realistic context and the more realistic environment may cause differences in the evaluations and judgments compared to those made when using viewing booths. 45 As found by Quartier et al, realistic light settings can have effects on perceived atmosphere and experienced emotions. 46 In this paper, we describe a psychophysical experiment to compare the colour preference of three LED sources for three different lighting applications: restaurant, retail display and supermarket.…”

Section: Introductionmentioning

confidence: 87%

Colour preference varies with lighting application

Lin

Mao

Smet

et al. 2015

Lighting Research & Technology

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Numerous efforts have been made to investigate how to characterize the effect of light sources on colour preference. This paper describes a psychophysical experiment to compare the colour preference evaluation among three sources for different lighting applications. Three lighting applications – restaurant, retail display, and supermarket – were created in two side-by-side full-scaled rooms. It was found that the colour preference varied with the lighting applications. Although none of the existing single-value measures can predict the preference for all three applications, a single measure is necessary for general consumer use given a careful definition of general lighting. In addition, lighting application specific measures could be useful for lighting professionals and experts. To provide detailed information, a colour distortion icon, with improved test colour samples will be useful.

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Section: Introductionmentioning

confidence: 87%

Colour preference varies with lighting application

Lin

Mao

Smet

et al. 2015

Lighting Research & Technology

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“…4 Further studies are needed to validate other colour quality metrics in full-scale environments. Previous papers [5][6][7] have discussed the details of the investigations for office lighting. This paper describes the investigations that have been carried out in the full-scale laboratory rooms of the University of Pannonia.…”

Section: Introductionmentioning

confidence: 99%

A study of preferred colour rendering of light sources: Home lighting

Szabó

Kéri

Schanda

et al. 2014

Lighting Research & Technology

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This paper is part of a project to establish the optimal spectral power distributions of LED light sources for use in offices, commerce and homes. The present paper introduces the most important aspects of home lighting and provides recommendations for optimum spectra in the home environment. Visual experiments were carried out in a real scale kitchen/dining room and in a living room environment with the participation of nearly 100 observers. Results have been evaluated with the help of the analytic hierarchy process (AHP) and a modified Thurstone method. As a result of the investigation, optimal spectral power distributions for the home environment are described.

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“…First, test the hypotheses Table 5. Table 4 The values of the test statistics Di,j given by (4) The results of the experiments can be summarized as follows: The first object in the rank is the 3 rd one, but there is no significant difference between it and the following object in the rank, the 4 th one. They are followed by the 1 st and 2 nd objects.…”

Section: Statistical Evaluation Processmentioning

confidence: 99%

“…Figure 1 shows the different cone sensitivities along the visible wavelength domain (380-780 nm). In order to evaluate the lighting quality of a light source under development, often, human visual experiments are used [4,5]. During the previous decade, this kind of visual experiments were carried out by using lighting booths with miniature models of real objects or small objects (e.g.…”

Section: Introductionmentioning

confidence: 99%

A New Statistical Method for Ranking of Light Sources based on Subjective Points of View

2015

APH

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A new method of ranking different light stimuli based on subjective points of view is presented. The objects are pairwise compared and ranked on the basis of the judgments of the observers. More than two options for judgment are allowed. Observers' perceptions are considered as random variables. The differences between the sensations are supposed to be independent, identically distributed random variables with Gauss distribution and equal standard deviations. On the basis of the judgments of the observers the expectations of the random variables are estimated by maximum likelihood method and the maximizations are carried out numerically. Computations were performed by the statistical program package R. The rank of the expectations is considered to be the rank of the observers' perception under the test light stimuli. Equalities of the expectations are tested by likelihood ratio tests. The results are compared to the results derived by the AHP method. Finally, some results in connection with the investigated questions are presented.

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Introduction to a study of preferred colour rendering of light sources

Cited by 7 publications

References 14 publications

Colour preference varies with lighting application

Colour preference varies with lighting application

A study of preferred colour rendering of light sources: Home lighting

A New Statistical Method for Ranking of Light Sources based on Subjective Points of View

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