ABSTRACT
V. Vilinnasl, R. Staniknnasi, A. gvegidal, H. VaitkeviNusl, Z. Bliznikast, K. Breivel, R. Vaicekauskas2, A. NovNkovasi, G. Kurikikl, A. 2ukauskasl, R. Gaska3, and M. S. Shur3 Institute of Materials Science and Applied Research, Vilnius University, Sauletekio 9-111. Vilnius, LT-10222 Lithuania
INTRODUCTION Solid-state lighting is a rapidly emerging technology with a potential to meet all human needs in lighting and illumination [1]. Lighting based on polychromatic sources of light composed of coloured light-emitting diodes (LEDs) offer versatile control of colour and a possibility of trade-off between efficiency and colour rendering. However, psychophysiological issues such as mood and atmosphere, visual comfort, aesthetic judgment, and well-being related to solid-state lighting have not been much addressed. In particular, colour perception under polychromatic solid-state sources is of high importance. In this work, perception of different-colour objects under illumination with a quadrichromatic (red-amber-green-blue, RAGB) solidstate source was studied. Results on colorimetric changes in standard objects as well as of colour perception experiments on humans are presented.
