A study of preferred illuminance and correlated colour temperature for LED office lighting

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A study of preferred illuminance and correlated colour temperature for LED office lighting. / Baniya, Rupak Raj; Tetri, Eino; Halonen, Liisa.

In: LIGHT AND ENGINEERING, Vol. 23, No. 3, 01.01.2015, p. 39-47.

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@article{04cf3e7085094ae09d497a3cc2acec43,
title = "A study of preferred illuminance and correlated colour temperature for LED office lighting",
abstract = "In order to study the preferred combination of the illuminance level and correlated colour temperature (CCT) and the preferred CCT of different ethnic groups in office lighting, a full-scale experiment was conducted in an office room with a light-emitting diode (LED) luminaires. Fifty-three observers from three different ethnic groups (Asian, European and African) rated nine different preset lighting situations after performing different office activities. The combination of 750 lx with 4000 K was statistically significantly preferred for office lighting. It was also found that the impression of brightness increases with a higher CCT and that people feel more stimulated under a higher CCT compared to a lower CCT. The European group preferred a lit environment under CCT 4000 K for office lighting and with the Asian and African groups the preference between 4000 and 5000 K depends upon illuminance levels.",
keywords = "Correlated colour temperature, Illuminance level, LED lighting, Office lighting",
author = "Baniya, {Rupak Raj} and Eino Tetri and Liisa Halonen",
year = "2015",
month = "1",
day = "1",
language = "English",
volume = "23",
pages = "39--47",
journal = "LIGHT AND ENGINEERING",
issn = "0236-2945",
number = "3",

}

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TY - JOUR

T1 - A study of preferred illuminance and correlated colour temperature for LED office lighting

AU - Baniya,Rupak Raj

AU - Tetri,Eino

AU - Halonen,Liisa

PY - 2015/1/1

Y1 - 2015/1/1

N2 - In order to study the preferred combination of the illuminance level and correlated colour temperature (CCT) and the preferred CCT of different ethnic groups in office lighting, a full-scale experiment was conducted in an office room with a light-emitting diode (LED) luminaires. Fifty-three observers from three different ethnic groups (Asian, European and African) rated nine different preset lighting situations after performing different office activities. The combination of 750 lx with 4000 K was statistically significantly preferred for office lighting. It was also found that the impression of brightness increases with a higher CCT and that people feel more stimulated under a higher CCT compared to a lower CCT. The European group preferred a lit environment under CCT 4000 K for office lighting and with the Asian and African groups the preference between 4000 and 5000 K depends upon illuminance levels.

AB - In order to study the preferred combination of the illuminance level and correlated colour temperature (CCT) and the preferred CCT of different ethnic groups in office lighting, a full-scale experiment was conducted in an office room with a light-emitting diode (LED) luminaires. Fifty-three observers from three different ethnic groups (Asian, European and African) rated nine different preset lighting situations after performing different office activities. The combination of 750 lx with 4000 K was statistically significantly preferred for office lighting. It was also found that the impression of brightness increases with a higher CCT and that people feel more stimulated under a higher CCT compared to a lower CCT. The European group preferred a lit environment under CCT 4000 K for office lighting and with the Asian and African groups the preference between 4000 and 5000 K depends upon illuminance levels.

KW - Correlated colour temperature

KW - Illuminance level

KW - LED lighting

KW - Office lighting

UR - http://www.scopus.com/inward/record.url?scp=84966666539&partnerID=8YFLogxK

M3 - Article

VL - 23

SP - 39

EP - 47

JO - LIGHT AND ENGINEERING

T2 - LIGHT AND ENGINEERING

JF - LIGHT AND ENGINEERING

SN - 0236-2945

IS - 3

ER -

ID: 8884868