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The quality of light sources
Author(s) -
Luo M Ronnier
Publication year - 2011
Publication title -
coloration technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 1472-3581
DOI - 10.1111/j.1478-4408.2011.00282.x
Subject(s) - incandescent light bulb , chromaticity , illuminance , color rendering index , color temperature , spectral power distribution , luminance , luminous flux , luminous efficacy , rendering (computer graphics) , optics , light emitting diode , led lamp , computer science , fluorescent lamp , light source , physics , computer vision , materials science , layer (electronics) , composite material
This paper describes physical measures for quantifying the quality of light sources and their characteristics. Typical light sources, including incandescent lamps, fluorescent lamps and light emitting diodes, are first introduced and their performance is compared. The CIE colour specification system is then described, including physical quantities for specifying light sources such as colour temperature, spectral power distribution, luminance, illuminance, luminous efficacy, chromaticity coordinates, uniform colour spaces, a colour difference formula and a colour appearance model. Finally, the CIE colour rendering index, together with recent developments towards a new index, including CRI‐CAM02UCS, is described.