Optimisation of mixing of LED-based light for object presentation
This study concerns an investigation on the perceived lighting quality of LED-based lighting using multiple colours. The objective of this work is to investigate whether LED-based lighting can provide a better lighting (more relevant and more appreciated) than the one obtained with halogen or fluorescent sources. A device was designed to allow assessment of the perception of objects under different lightings. Subjects were invited to add red, cyan and amber to white LEDs in order to match rendering of halogen and fluorescence on specific targets: colour charts, paintings and objects. Then also had to rate the difference between both lighting and express their preference.The results obtained with perception of LED-based lighting are rather positive. It seems possible to find colour mixes of LEDs which provide lighting situations rather similar to halogen or fluorescence; these LEDs blending are well accepted and often preferred, although CRI values are always below. This underlines the fact that the actual CRI is inadequate to characterize the colour rendering of solid-state light sources and that it needs to be updated. Moreover, this suggests a possible use of LED-based lighting in shop or display lighting.
Colorimetry LED colour rendering colour perception
Sophie Boissard Marc Fonloynont Pascale Avouac Bastie
Ecole Nationals des Travaux Publics de lEtat, Vaulx-en-Velin, Lyon, France
国际会议
26th Session of the CIE(国际照明委员会（CIE）第26届大会)
北京
英文
56-59
2007-07-04（万方平台首次上网日期，不代表论文的发表时间）