Perception of Human Skin in Street Lighting under Five Types of Led Spectra

Marc Fontoynont, Lucie Bruyère, Joachim Blanc-Gonnet

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

Resumé

A panel of observers has been invited to rate and compare the quality of 5 spectra of LED sources used for street lighting, on 30 subjects. Vertical illuminance on faces was 14 lx (+/- 3 lx) . All 30 subjects did not have the same type of skin. 60% were from the European Caucasian type (clear skin), 23 % from the Asian one, 17% were from the Sub-Saharan type (dark skin). All subjects were also acting as observers. Correlated Colour temperature of sources was 2200K , 2700K, 3200K, 4000K, 4800K. This was obtained by mixing cool-white, warm-white and red LEDs (for the 2200 K and 2700 K sources only). The xtreme stimuli (2200K and 4800K) were rejected by all participants. When presented in pairs (Thurstone protocole), 75% of observers preferred the 3200K stimulus, 61% the 4000 K stimulus, 59% preferred the 2700K stimulus. People with Asian skin was found to be preferred under CCT of 3200 K and below, for Sub-saharan skin type it was 3200K and above, and for Caucasian around 3200 K.
OriginalsprogEngelsk
TitelProceedings of CIE Centenary Conference "Towards a New Century of Light"
Antal sider7
ForlagCIE
Publikationsdato2013
ISBN (Elektronisk)978-3-902842-44-2
StatusUdgivet - 2013
BegivenhedTowards a new century of light - Paris, Frankrig
Varighed: 12 apr. 201319 apr. 2013

Konference

KonferenceTowards a new century of light
LandFrankrig
ByParis
Periode12/04/201319/04/2013
NavnC I E. Publication
Vol/bindCIE x038:2013 (including Addendum 1)
ISSN1011-6567

Citer dette

Fontoynont, M., Bruyère, L., & Blanc-Gonnet, J. (2013). Perception of Human Skin in Street Lighting under Five Types of Led Spectra. I Proceedings of CIE Centenary Conference "Towards a New Century of Light" CIE. C I E. Publication, Bind. CIE x038:2013 (including Addendum 1)
Fontoynont, Marc ; Bruyère, Lucie ; Blanc-Gonnet, Joachim. / Perception of Human Skin in Street Lighting under Five Types of Led Spectra. Proceedings of CIE Centenary Conference "Towards a New Century of Light" . CIE, 2013. (C I E. Publication, Bind CIE x038:2013 (including Addendum 1)).
@inproceedings{e17bf58b651343d3808dad6d10adb6fc,
title = "Perception of Human Skin in Street Lighting under Five Types of Led Spectra",
abstract = "A panel of observers has been invited to rate and compare the quality of 5 spectra of LED sources used for street lighting, on 30 subjects. Vertical illuminance on faces was 14 lx (+/- 3 lx) . All 30 subjects did not have the same type of skin. 60{\%} were from the European Caucasian type (clear skin), 23 {\%} from the Asian one, 17{\%} were from the Sub-Saharan type (dark skin). All subjects were also acting as observers. Correlated Colour temperature of sources was 2200K , 2700K, 3200K, 4000K, 4800K. This was obtained by mixing cool-white, warm-white and red LEDs (for the 2200 K and 2700 K sources only). The xtreme stimuli (2200K and 4800K) were rejected by all participants. When presented in pairs (Thurstone protocole), 75{\%} of observers preferred the 3200K stimulus, 61{\%} the 4000 K stimulus, 59{\%} preferred the 2700K stimulus. People with Asian skin was found to be preferred under CCT of 3200 K and below, for Sub-saharan skin type it was 3200K and above, and for Caucasian around 3200 K.",
author = "Marc Fontoynont and Lucie Bruy{\`e}re and Joachim Blanc-Gonnet",
year = "2013",
language = "English",
series = "C I E. Publication",
booktitle = "Proceedings of CIE Centenary Conference {"}Towards a New Century of Light{"}",
publisher = "CIE",

}

Fontoynont, M, Bruyère, L & Blanc-Gonnet, J 2013, Perception of Human Skin in Street Lighting under Five Types of Led Spectra. i Proceedings of CIE Centenary Conference "Towards a New Century of Light" . CIE, C I E. Publication, bind CIE x038:2013 (including Addendum 1), Towards a new century of light, Paris, Frankrig, 12/04/2013.

Perception of Human Skin in Street Lighting under Five Types of Led Spectra. / Fontoynont, Marc; Bruyère, Lucie; Blanc-Gonnet, Joachim.

Proceedings of CIE Centenary Conference "Towards a New Century of Light" . CIE, 2013. (C I E. Publication, Bind CIE x038:2013 (including Addendum 1)).

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

TY - GEN

T1 - Perception of Human Skin in Street Lighting under Five Types of Led Spectra

AU - Fontoynont, Marc

AU - Bruyère, Lucie

AU - Blanc-Gonnet, Joachim

PY - 2013

Y1 - 2013

N2 - A panel of observers has been invited to rate and compare the quality of 5 spectra of LED sources used for street lighting, on 30 subjects. Vertical illuminance on faces was 14 lx (+/- 3 lx) . All 30 subjects did not have the same type of skin. 60% were from the European Caucasian type (clear skin), 23 % from the Asian one, 17% were from the Sub-Saharan type (dark skin). All subjects were also acting as observers. Correlated Colour temperature of sources was 2200K , 2700K, 3200K, 4000K, 4800K. This was obtained by mixing cool-white, warm-white and red LEDs (for the 2200 K and 2700 K sources only). The xtreme stimuli (2200K and 4800K) were rejected by all participants. When presented in pairs (Thurstone protocole), 75% of observers preferred the 3200K stimulus, 61% the 4000 K stimulus, 59% preferred the 2700K stimulus. People with Asian skin was found to be preferred under CCT of 3200 K and below, for Sub-saharan skin type it was 3200K and above, and for Caucasian around 3200 K.

AB - A panel of observers has been invited to rate and compare the quality of 5 spectra of LED sources used for street lighting, on 30 subjects. Vertical illuminance on faces was 14 lx (+/- 3 lx) . All 30 subjects did not have the same type of skin. 60% were from the European Caucasian type (clear skin), 23 % from the Asian one, 17% were from the Sub-Saharan type (dark skin). All subjects were also acting as observers. Correlated Colour temperature of sources was 2200K , 2700K, 3200K, 4000K, 4800K. This was obtained by mixing cool-white, warm-white and red LEDs (for the 2200 K and 2700 K sources only). The xtreme stimuli (2200K and 4800K) were rejected by all participants. When presented in pairs (Thurstone protocole), 75% of observers preferred the 3200K stimulus, 61% the 4000 K stimulus, 59% preferred the 2700K stimulus. People with Asian skin was found to be preferred under CCT of 3200 K and below, for Sub-saharan skin type it was 3200K and above, and for Caucasian around 3200 K.

M3 - Article in proceeding

T3 - C I E. Publication

BT - Proceedings of CIE Centenary Conference "Towards a New Century of Light"

PB - CIE

ER -

Fontoynont M, Bruyère L, Blanc-Gonnet J. Perception of Human Skin in Street Lighting under Five Types of Led Spectra. I Proceedings of CIE Centenary Conference "Towards a New Century of Light" . CIE. 2013. (C I E. Publication, Bind CIE x038:2013 (including Addendum 1)).