Recent Research Progress on Colour Quality of Lighting

With the advancement of semiconductor lighting technology and the popularization of human-centred lighting concepts, colour preference and colour discrimination of lighting are now at the forefront of colour quality research of light source. However, individual case in psychophysical research have the inherent drawback of being inapplicable in multiple scenarios, and thus the two dimensions of colour quality of light source have not yet been effectively quantified. To address this issue, the team has successfully constructed the most accurate colour preference model MCPI, and the colour discrimination model CDM at this stage, based on a meta-analysis of multiple sets of psychophysical research data, which have also yielded convincing results in terms of visual mechanism. In addition, the CDM-E prediction model has been constructed by extending the CDM model with illumination factors.