A new measure called Colour Rendering Capacity (CRC) has been developed to describe a particular aspect of colour rendering properties of light sources, that is, the maximum possible number of different surface colours obtainable under a given source. The CRC is a relative measure expressed as a dimensionless parameter between zero and unity, depending on the spectral power distribution of the source only. The CRC has been calculated for some commonly used sources and the result discussed with respect to other studies concerned with the colour rendering performance of light sources.
Get full access to this article
View all access options for this article.
References
1.
Cie, Method of measuring and specifying colour rendering properties of light sources, CIE Publication No. 13.2 (1974).
2.
Halstead, M.B. , Colour rendering: past, present and future , Proc. 3rd. AIC Congress Color77, 97 (1978).
3.
Thornton, W.A. , Color discrimination index, J. Opt. Soc. Am., 62, 191 (1972).
4.
Boyce, P.R., Human factors in lighting, Applied Science Publishers , London (1981).
5.
MacAdam, D.L. , The theory of the maximum visual efficiency of colored materials, J. Opt. Soc. Am., 25, 249 (1935).
6.
Loe, D.L., Rowlands, E. and Watson, N.F., Preferred lighting conditions for the display of oil and watercolour paintings , Ltg. Res. and Technol., 14, 173 (1982).
7.
Aston, S.M. and Bellchambers, H.E. , Illumination, colour rendering and visual clarity , Ltg. Res. and Technol., 1, 259 (1969).
