Content
Abstract:
The effect of spectral composition of white light sources with variable chromaticity on objective and subjective evaluations of their colour rendering was studied. The dependences of the colour rendering indices on colour temperature were obtained for four light sources: a tungsten halogen lamp, white light emitting diodes with adjustable correlated colour temperature, fluorescent lamps of three colours, and three-colour light emitting diodes. The dependences of general colour rendering index (CRI) Ra and Smet’s memory colour rendering index (MCRI) Rm on the distance uv between a point corresponding to the studied radiation and the blackbody line in the 1960 CIE system (u, v) at constant correlated colour temperature 6500 K were also studied for an installation with three-colour light emitting diodes. The conditions, in which these indices reach their maximum values, were identified.
References:
1. CIE13.3–1995: Method of Measuring and Specifying Colour Rendering Properties of Light Sources. 2. ANSI/IES TM‑30–20–2019: IES Method for Evaluating Light Source Colour Rendition. 3. Davis, W., Ohno, Y. Colour quality scale // Opt. Eng, 2010, 49(3), 033602. 4. The International Lighting Vocabulary / Eds D.N. Lazarev, Moscow: Russkiy Yazyk, 1979, 278 p. 5. Lindsay, J. All about Colour [Vsyo o tsvete] / Trans. from Eng., science editor V. Babenko / Moscow: Knizhnyi klub 36.6, 2011, 427 p. 6. Sanders, C.L. Colour preferences for natural objects // Illum. Eng., 1959, Vol. 54, pp. 452–456. 7. Judd, D.B. A flattery index for artificial illuminants // Illum. Eng., 1967, Vol. 62, pp. 593–598. 8. Smet, K.A.G., Hanselaer, P. Memory and preferred colours and the colour rendition of white light sources // Lighting Res. Technol., 2015, 484, pp. 393–411. 9. Smet, K.A.G., Ryckaert, W.R., Pointer, M.R., Deconinck, G., Hanselaer, P. Colour appearance rating of familiar real objects // Colour Research and Application, 2011, Vol. 36, pp. 192–200. 10. Mangkuto, R.A., Revantino, E.A., Munir, F. Effect of Duv Variation on Preference of Lighting Qualities / Proc. The 4th Asia Conference of International Building Performance Simulation Association – “ASIM 2018” At: Hong Kong. [Electronic source]. URL: https://www.researchgate.net/publication/329735697_The_Effect_of_Duv_Variation_on_Preference_of_Lighting_Qualities (date of reference: 25.07.2021).
Keywords
Recommended articles