Choudhury, A.K.R. Principles of Colour and Appearance Measurement: Volume 1: Object appearance, colour perception and instrumental measurement

Woodhead Publishing, 2014. — 425 p.
Abstract : This introductory chapter discusses the importance of light sources in visual perception. Various radiometric and photometric measures of illumination have been explained. The characteristics of various incandescence and discharge lamps are discussed and compared. Colour temperature, luminous effi cacy, colour rendering and colour preference indices of light sources are also discussed. Theoretical light sources or illuminants are explained.
Key words : light sources, illuminants, radiometry, photometry, black body, colour rendering index, colour preference index.