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Research Article

Tutorial: Background and Guidance for Using the ANSI/IES TM-30 Method for Evaluating Light Source Color Rendition

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Pages 191-231 | Received 23 Sep 2020, Accepted 03 Dec 2020, Published online: 16 Mar 2021

References

  • Acosta I, Leon J, Bustamante P. 2018. Daylight spectrum index: a new metric to assess the affinity of light sources with daylighting. Energies. 11(10):2545.
  • Asano Y, Fairchild MD, Blondé L. 2016. Individual colorimetric observer model. PLoS One. 11(2):e0145671.
  • Asano Y, Fairchild MD, Blondé L, Morvan P. 2014. Multiple color matches to estimate human color vision sensitivities. In: Elmoataz A, Lezoray O, Nouboud F, Mammass D editors. International conference on image and signal processing. Cherborg (France): Springer; p. 18–25.
  • Asano Y, Fairchild MD, Blondé L, Morvan P. 2016b. Color matching experiment for highlighting interobserver variability. Color Res Appl. 41(5):530–539.
  • Ashdown I, Avilés G, Bennett LC, Burkett R, Choi A, Conway K, Deroos M, Druzik J, Gregory P, Herst D, et al. 2015. Correspondence: in support of the IES method of evaluating light source colour rendition. Light Res Technol. 47(8):1029–1034. doi:https://doi.org/10.1177/1477153515617392
  • Bao WY, Wei MC. 2019. Change of gamut size for producing preferred color appearance from 20 to 15000 lux. Leukos. doi:https://doi.org/10.1080/15502724.2019.1587621
  • Barnes BT. 1957. Band systems for appraisal of color rendition. J Opt Soc Am. 47(12):1124.
  • Bodrogi P, Bruckner S, Khanh TQ. 2011. Ordinal scale based description of colour rendering. Color Res Appl. 36(4):272–285.
  • Bouma PJ. 1937. Colour reproduction in the use of different sources of ‘white’ light. Philips Tech Rev. 2(I):1–7.
  • Boyce P, Stampfli J. 2019. LRT digest 3: new colour metrics and their use. Light Res Technol. 51(5):657–681.
  • Bulashevich KA, A V K, Karpov SY. 2015. Optimal ways of colour mixing for high-quality white-light LED sources. Phys Status Solidi a-Appl Mater Sci. 212(5):914–919.
  • Chalmers A, Soltic S 2012. Light source optimization: spectral design and simulation of four-band white-light sources. Opt Eng. 51(4). doi:https://doi.org/10.1117/1.Oe.51.4.044003
  • [CIE] Commission Internationale de l’Eclairage. 1948. Recueil des Travaux et Compte Rendu des Séances: CIE 11th Session. Paris (France): Commission Internationale de l’Eclairage.
  • [CIE] Commission Internationale de l’Eclairage. 1995. 13.3: method of measuring and specifying colour rendering properties of light sources. Vienna (Austria): Commission Internationale de l’Eclairage.
  • [CIE] Commission Internationale de l’Eclairage. 1999. 135/2 TC1-33 closing remarks. Vienna (Austria): Commission Internationale de l’Eclairage.
  • [CIE] Commission Internationale de l’Eclairage. 2006. 170-1: fundamental chromaticity diagram with physiological axes. Part 1. Vienna (Austria): Commission Internationale de l’Eclairage.
  • [CIE] Commission Internationale de l’Eclairage. 2007. 177:2007 colour rendering of white LED light sources. Vienna (Austria): Commission Internationale de l’Eclairage.
  • [CIE] Commission Internationale de l’Eclairage. 2015. 170-2: fundamental chromaticity diagram with physiological axes, Part 2: spectral luminous efficiency functions and chromaticity diagrams. Vienna (Austria): Commission Internationale de l’Eclairage.
  • [CIE] Commission Internationale de l’Eclairage. 2017. 224:2017 colour fidelity index for accurate scientific use. Vienna (Austria): Commission Internationale de l’Eclairage.
  • [CIE] Commission Internationale de l’Eclairage. 2018. 15:2018: colorimetry. Vienna (Austria): Commission Internationale de l’Eclairage.
  • Dai Q, Hao LX, Lin Y, Cui Z. 2016. Spectral optimization simulation of white light based on the photopic eye-sensitivity curve. J Appl Phys. 119(5):053103.
  • David A. 2013. Color fidelity of light sources evaluated over large sets of reflectance samples. Leukos. 10(2):59–75.
  • David A, Esposito T, Houser K, Royer M, Smet KAG, Whitehead L. 2019. A vector field color rendition model for characterizing color shifts and metameric mismatch. Leukos. 1–16. doi:https://doi.org/10.1080/15502724.2018.1554369
  • David A, Fini PT, Houser KW, Ohno Y, Royer MP, Smet KAG, Wei M, Whitehead L. 2015. Development of the IES method for evaluating the color rendition of light sources. Opt Express. 23(12):15888–15906. doi:https://doi.org/10.1364/OE.23.015888
  • David A, Smet KAG, Whitehead L. 2019b. Methods for assessing quantity and quality of illumination. Annu Rev Vis Sci. 5(1):479–502.
  • Davis W, Ohno Y. 2009. Approaches to color rendering measurement. J Mod Opt. 56(13):1412–1419.
  • Davis W, Ohno Y. 2010. Color quality scale. Opt Eng. 49(3):33602.
  • de Beer E, van der Burgt P, van Kemenade J. 2015. Another color rendering metric: do we really need it, can we live without it? Leukos. 12(1–2):51–59.
  • Dikel EE, Burns GJ, Veitch JA, Mancini S, Newsham GR. 2013. Preferred chromaticity of color-tunable LED lighting. Leukos. 10(2):101–115.
  • Elliot AJ, Maier MA. 2014. Color psychology: effects of perceiving color on psychological functioning in humans. Annu Rev Psychol. 65:95–120.
  • Esposito T, Houser K. 2017. A new measure of colour discrimination for LEDs and other light sources. Light Res Technol. 51(1):5–23.
  • Esposito T, Houser K. 2019. Models of colour quality over a wide range of spectral power distributions. Light Res Technol. 51(3):331–352.
  • Fairchild MD. 2013. Color appearance models. 3rd ed. Chichester (United Kingdom): Wiley.
  • Foster DH. 2011. Color constancy. Vision Res. 51(7):674–700.
  • Geisler-Moroder D, Dur A 2009. Color-rendering indices in global illumination methods. J Electron Imaging. 18(4). doi:https://doi.org/10.1117/1.3274623
  • [GLA] Global Lighting Association. 2018. Application of CIE 13.3-1995 with associated CRI-based colour rendition properties. http://www.globallightingassociation.org/library.
  • Gu HT, Luo MR, Liu XY. 2017. Testing different colour rendering metrics using colour difference data. Light Res Technol. 49(5):539–560.
  • Guo X, Houser K. 2004. A review of colour rendering indices and their application to commercial light sources. Light Res Technol. 36(3):183–197.
  • Hashimoto K, Nayatani Y. 1994. Visual clarity and feeling of contrast. Color Res Appl. 19(3):171–185.
  • Hashimoto K, Yano T, Shimizu M, Nayatani Y. 2007. New method for specifying color-rendering properties of light sources based on feeling of contrast. Color Res Appl. 32(5):361–371.
  • He G, Tang J. 2014. Spectral optimization of color temperature tunable white LEDs with excellent color rendering and luminous efficacy. Opt Lett. 39(19):5570–5573.
  • He G, Tang J. 2014b. Spectral optimization of phosphor-coated white LEDs for color rendering and luminous efficacy. IEEE Photonics Technol Lett. 26(14):1450–1453.
  • He G, Yan H. 2011. Optimal spectra of the phosphor-coated white LEDs with excellent color rendering property and high luminous efficacy of radiation. Opt Express. 19(3):2519–2529.
  • Holm J, Maier T, Debevec P, LeGendre C, Pines J, Erland J, Joblove G, Dyer S, Sloan B, Di Gennaro J, et al. 2016. A cinematographic spectral similarity index. In: SMPTE 2016 - annual technical conference and exhibition. Vol. 2016-January. Hollywood, CA: Institute of Electrical and Electronics Engineers Inc; p. 1–36.
  • Houser K, Mossman M, Smet K, Whitehead L. 2016. Tutorial: color rendering and its applications in lighting. Leukos. 12(1–2):7–26.
  • Houser K, Wei M, David A, Krames MR, Shen S. 2013. Review of measures for light-source color rendition and considerations for a two-measure system for characterizing color rendition. Opt Express. 21(8):10393–10411.
  • Hunt RW. 1952. Light and dark adaptation and the perception of color. J Opt Soc Am. 42(3):190–199. doi:https://doi.org/10.1364/josa.42.000190
  • [IES] Illuminating Engineering Society. 2018. PS-11-18: IES position on TM-30-18, IES method for evaluating light source color rendition. New York (NY): Illuminating Engineering Society.
  • [IES] Illuminating Engineering Society. 2018b. ANSI/IES TM-33-18 standard file format for the electronic transfer of the luminaire optical data. New York: Illuminating Engineering Society; p. 46.
  • [IES] Illuminating Engineering Society. 2019. ANSI/IES LM-79-19 approved method: optical and electrical measurements of solid-state lighting products. New York: Illuminating Engineering Society; p. 22.
  • [IES] Illuminating Engineering Society. 2020. ANSI/IES TM-30-20 method for evaluating light source color rendition. New York: Illuminating Engineering Society; p. 34.
  • Islam MS, Dangol R, Hyvarinen M, Bhusal P, Puolakka M, Halonen L. 2013. User preferences for LED lighting in terms of light spectrum. Light Res Technol. 45(6):641–665.
  • Jerome CW. 1972. Flattery vs color rendition. J Illum Eng Soc. 1(3):208–211.
  • Jerome CW. 1974. Absolute color rendering. J Illum Eng Soc. 4(1):25–28.
  • Jerome CW, Judd DB. 1953. Specification of color rendering properties of fluorescent lamps. Illum Eng. May. 259–267.
  • Jost S, Cauwerts C, Avouac P. 2018. CIE 2017 color fidelity index Rf: a better index to predict perceived color difference? J Opt Soc Am A Opt Image Sci Vis. 35(4):B202–B213.
  • Jost-Boissard S, Avouac P, Fontoynont M. 2014. Assessing the colour quality of LED sources: naturalness, attractiveness, colourfulness and colour difference. Light Res Technol. 47(7):769–794.
  • Judd DB. 1967. Flattery Index for Artificial Illuminants. IES Trans. 593–598.
  • Kawashima Y, Ohno Y 2019. Vision experiment on verification of hunt effect in lighting. In: Proceeding of CIE 29th session. Washington (DC). Commission Internationale de l’Eclairage.
  • Kirkpatrick DA. 2004. Is solid state the future of lighting? In: Ferguson IT, Narendran N, DenBaars SP, Carrano JC, editors. Third international conference on solid state lighting, Vol. 5187. San Diego, CA: SPIE; p. 10.
  • Li C, Li Z, Wang Z, Xu Y, Luo MR, Cui G, Melgosa M, Brill MH, Pointer M. 2017. Comprehensive color solutions: CAM16, CAT16, and CAM16-UCS. Color Res Appl. 42(6):703–718.
  • Li C, Luo MR, Li CJ, Cui GH. 2012. The CRI-CAM02UCS colour rendering index. Color Res Appl. 37(3):160–167.
  • Lin Y, Wei M, Smet KAG, Tsukitani A, Bodrogi P, Khanh TQ. 2015. Colour preference varies with lighting application. Light Res Technol. 49(3):316–328.
  • Liu AQ, Tuzikas A, Zukauskas A, Vaicekauskas R, Vitta P, Shur M. 2013. Cultural preferences to color quality of illumination of different artwork objects revealed by a color rendition engine. IEEE Photonics J. 5(4):6801010.
  • Liu Q, Huang Z, Ziao K, Pointer MR, Westland S, Luo MR. 2017. Gamut Volume Index: a color preference metric based on meta-analysis and optimized colour samples. Opt Express. 25(14):16378–16391.
  • Luo MR, Cui G, Li C. 2006. Uniform colour spaces based on CIECAM02 colour appearance model. Color Res Appl. 31(4):320–330.
  • Luo MR, Gu HT, Liu XY, Wang BY 2015. Testing colour rendering indices using visual data under different LED sources. In:Proceedings of the 28th CIE Session. Manchester, UK.
  • Murdoch MJ, Fairchild MD. 2019. Modelling the effects of inter-observer variation on colour rendition. Light Res Technol. 51(1):37–54.
  • [NEMA] National Electrical Manufacturers Association. 2017. ANSI/NEMA C78.377-2017 American national standard for electric lamps—Specifications for the chromaticity of solid state lighting products. Rosslyn (VA): Illuminating Engineering Society.
  • Nickerson D. 1958. Measurement and specification of color rendition properties of light sources. Illum Eng. 53(2):77–90.
  • Nickerson D. 1960. Light sources and color rendering. J Opt Soc Am. 50(1):57–69.
  • Ohno Y. 2005. Spectral design considerations for white LED color rendering. Opt Eng. 44(11):111302.
  • Ohno Y. 2013. Practical use and calculation of CCT and Duv. Leukos. 10(1):47–55.
  • Ohno Y, Fein G, Miller C. 2015. Vision experiment on chroma saturation for color quality preference. In: Proc. CIE Lighting Quality and Energy Efficiency, Melbourne 2016, 28th CIE session. Vol. 1. Manchester (UK): Commision Internationale de l’Eclairage.
  • Ohno Y, Oh S. 2016. Vision experiment II on white light chromaticity for lighting. CIE. x0422016:175–184.
  • Opstelten JJ. 1980. The dependence of the general colour rendering index on the set of test colours, the standard observer and the colour-difference formula. Light Res Technol. 12(4):186–194.
  • Ouweltjes JL. 1960. The specification of colour rendering properties of fluorescent lamps. Die Farbe. 4(6):207–246.
  • Pointer MR. 1986. Measuring colour rendering—A new approach. Light Res Technol. 18(4):175–184.
  • Pointer MR. 2004. NPL REPORT: DQL-OR 007. Measuring colour rendering - a new approach - II. Middlesex (UK): National Physical Laboratory.
  • Protzman JB, Houser KW. 2006. LEDs for general illumination: the state of the science. Leukos. 3(1–4):121–142.
  • Rea MS. 2010. A practical and predictive two-metric system for characterizing the color rendering properties of light sources used for architectural applications. 7652:765206–765207. doi:https://doi.org/10.1117/12.868799
  • Rea MS, Freyssinier JP. 2010. Color rendering: beyond pride and prejudice. Color Res Appl. 35(6):401–409.
  • Rea MS, Freyssinier JP. 2013. White lighting. Color Res Appl. 38(2):82–92.
  • Rea MS, Freyssinier-Nova JP. 2008. Color rendering: a tale of two metrics. Color Res Appl. 33(3):192–202.
  • Robertson AR. 1968. Computation of correlated color temperature and distribution temperature. J Opt Soc Am. 58(11):1528.
  • Royer M. 2016. What is the reference? An examination of alternatives to the reference sources used in IES TM-30-15. Leukos. 13(2):71–89.
  • Royer M. 2017b. Comparing measures of average color fidelity. Leukos. 14(2):69–85.
  • Royer M. 2018. Comparing measures of gamut area. Leukos. 15(1):29–53.
  • Royer M. 2019. Analysis of color rendition specification criteria. In: Proc. SPIE 7652, International Optical Design Conference 2010, Light-emitting devices, materials, and applications. Vol. 10940. International Society for Optics and Photonics; p. 109401J.
  • Royer M. 2019b. Evaluating tradeoffs between energy efficiency and color rendition. OSA Contin. 2(8):2308.
  • Royer M. 2019c. Spectral power distributions. doi:https://doi.org/10.6084/m9.figshare.7704566.v1
  • Royer M. 2020. Real light source SPDs and color data for use in research. doi:https://doi.org/10.6084/m9.figshare.12947240.v1
  • Royer M, Wilkerson A, Wei M, Safranak S. 2019d. Experimental validation of color rendition specification criteria based on ANSI/IES TM-30-18. Light Res Technol. 52(3):323–349.
  • Royer M, Houser KW, David A. 2018b. Chroma shift and gamut shape: going beyond average color fidelity and gamut area. Leukos. 14(3):149–165.
  • Royer M, Wei M. 2017. The role of presented objects in deriving color preference criteria from psychophysical studies. Leukos. 13(3):143–157.
  • Royer M, Wilkerson A, Wei M. 2018c. Human perceptions of colour rendition at different chromaticities. Light Res Technol. 50(7):965–994.
  • Royer M, Wilkerson A, Wei M, Houser K, Davis R. 2017. Human perceptions of colour rendition vary with average fidelity, average gamut, and gamut shape. Light Res Technol. 49(8):966–991.
  • Sanders CL. 1959. Assessment of color rendition under an iIlluminant using color tolerances for natural objects. J Illum Eng Soc. (54):640–646.
  • Sanders CL. 1959b. Color preferences for natural objects. Illum Eng. 47(1):452–456.
  • Sandor N, Schanda J. 2006. Visual colour rendering based on colour difference evaluations. Light Res Technol. 38(3):225–239.
  • Schubert EF, Kim JK. 2005. Solid-state light sources getting smart. Science. 308(5726):1274–1278.
  • Seim T. 1985. In search of an improved method for assessing the colour rendering properties of light sources. Light Res Technol. 17(1):12–22.
  • Smet KAG. 2018. Two neutral white illumination loci based on unique white rating and degree of chromatic adaptation. Leukos. 14(2):55–67.
  • Smet KAG, David A, Whitehead L. 2015c. Why color space uniformity and sample set spectral uniformity are essential for color rendering measures. Leukos. 12(1–2):39–50.
  • Smet KAG, Deconinck G, Hanselaer P. 2015. Chromaticity of unique white in illumination mode. Opt Express. 23(10):12488–12495.
  • Smet KAG, Geert D, Hanselaer P. 2014. Chromaticity of unique white in object mode. Opt Express. 22(21):25830–25841.
  • Smet KAG, Hanselaer P. 2015b. Impact of cross-regional differences on color rendition evaluation of white light sources. Opt Express. 23(23):30216–30226.
  • Smet KAG, Hanselaer P. 2016. Memory and preferred colours and the colour rendition of white light sources. Light Res Technol. 48(4):393–411.
  • Smet KAG, Lin Y, B V N, Nemeth Z, Duque-Chica GL, Quintero JM, Chen HS, Luo RM, Safi M, Hanselaer P. 2014b. Cross-cultural variation of memory colors of familiar objects. Opt Express. 22(26):32308–32328.
  • Smet KAG, Ryckaert WR, Pointer MR, Deconinck G, Hanselaer P. 2010. Memory colours and colour quality evaluation of conventional and solid-state lamps. Opt Express. 18(25):26229–26244.
  • Smet KAG, Ryckaert WR, Pointer MR, Deconinck G, Hanselaer P. 2011. Colour appearance rating of familiar real objects. Color Res Appl. 36(3):192–200.
  • Smet KAG, Schanda J, Whitehead L, Luo RM. 2013. CRI2012: A proposal for updating the CIE colour rendering index. Light Res Technol. 45(6):689–709.
  • Smet KAG, Whitehead L, Schanda J, Luo RM. 2016b. Toward a replacement of the CIE color rendering index for white light sources. Leukos. 12(1–2):61–69.
  • Smithson H. 2005. Sensory, computational and cognitive components of human colour constancy. Philos Trans R Soc B Biol Sci. 360(1458):1329–1346.
  • Soltic S, Chalmers A. 2013. Optimization of laser-based white light illuminants. Opt Express. 21(7):8964–8971. doi:https://doi.org/10.1364/OE.21.008964
  • Soltic S, Chalmers A. 2018. Prospects for 4-laser white-light sources. J Mod Opt. doi:https://doi.org/10.180/09500340.2018.1517904
  • Szabó F, Bodrogi P, Schanda J. 2009. A colour harmony rendering index based on predictions of colour harmony impression. Light Res Technol. 41(2):165–182.
  • Szabó F, Kéri R, Schanda J, Csuti P, Mihálykó-Orbán E. 2014. A study of preferred colour rendering of light sources: home lighting. Light Res Technol. 48(2):103–125.
  • Tang X, Teunissen C. 2018. The appreciation of LED-based white light sources by Dutch and Chinese people in three application areas. Light Res Technol. 51(3):353–372.
  • Teunissen C, van der Heijden F, Poort SHM, de Beer E. 2016. Characterising user preference for white LED light sources with CIE colour rendering index combined with a relative gamut area index. Light Res Technol. 49(4):461–480.
  • Thornton WA. 1972. Color-discrimination index. J Opt Soc Am. 62(2):191–194.
  • Thornton WA. 1974. A validation of the color-preference index. J Illum Eng Soc. 4(1):48–52.
  • van der Burgt P, van Kemenade J. 2010. About color rendition of light sources: the balance between simplicity and accuracy. Color Res Appl. 35(2):85–93.
  • van Kemenade J, van der Burgt P. 1995. Toward a user oriented description of color rendition of light sources. In: CIE 23rd sess. London, England: Chartered Institution of Building Services Engineers; p. 43–46.
  • van Kemenade J, Van der Burgt P 1988. Light sources and color rendering: additional information to the Ra-index. In: CIBSE Natl Light Conf. 133–148.
  • van Trigt C. 1999. Color rendering, a reassessment. Color Res Appl. 24(3):197–206.
  • Veitch JA, Newsham GR, Boyce PR, Jones CC. 2008. Lighting appraisal, well-being and performance in open-plan offices: A linked mechanisms approach. Light Res Technol. 40(2):133–151.
  • Veitch JA, Stokkermans MGM, Newsham GR. 2011. Linking lighting appraisals to work behaviors. Environ Behav. 45(2):198–214.
  • Vick K, Allen GR. 2014. Quantifying consumer lighting preference. In: 14th international symposium on the science and technology of lighting (LS14). Como (Italy).
  • Wei M, Bao W, Huang HP. 2020. Consideration of light level in specifying light source color rendition. Leukos. 16(1):55–65.
  • Wei M, Houser K, David A, Krames M. 2016. Effect of gamut shape on color preference. CIE 2016 light qual energy effic. CIEx042. 20:32–41.
  • Wei M, Houser K, David A, Krames M. 2017. Colour gamut size and shape influence colour preference. Light Res Technol. 49(8):992–1014.
  • Wei M, Royer M, Huang HP. 2019. Perceived colour fidelity under LEDs with similar Rf but different Ra. Light Res Technol. 51(6):858–869.
  • Wei M, Houser KW. 2017b. Systematic changes in gamut size affect color preference. Leukos. 13(1):23–32.
  • Wei M, Houser KW, Allen GR, Beers WW. 2014. Color preference under LEDs with diminished yellow emission. Leukos. 10(3):119–131.
  • Whitehead LA, Mossman MA. 2012. A Monte Carlo method for assessing color rendering quality with possible application to color rendering standards. Color Res Appl. 37(1):13–22.
  • Winch GT, Ruff HR. 1951. Measurement, representation and specification of colour and colour rendering properties of light sources. IES Trans. 16(1):13–25.
  • Worthey JA. 1982. Opponent-colors approach to color rendering. J Opt Soc Am. 72(1):74–82.
  • Wyszecki G, Stiles WS. 1982. Color science. Vol. 8. New York: Wiley.
  • Xu W, Wei M, Smet KAG, Lin Y. 2016. The prediction of perceived colour differences by colour fidelity metrics. Light Res Technol. 49(7):805–817.
  • Zan L, Lin D, Zhong P, He G. 2016. Optimal spectra of white LED integrated with quantum dots for mesopic vision. Opt Express. 24(7):7643–7653.
  • Zhang F, Xu H, Feng H. 2017. Toward a unified model for predicting color quality of light sources. Appl Opt. 56(29):8186–8195.
  • Zhang F, Xu H, Wang Z. 2017b. Optimizing spectral compositions of multichannel LED light sources by IES color fidelity index and luminous efficacy of radiation. Appl Opt. 56(7):1962–1971.
  • Zhang WL, Yang W, Zhong P, Mei SL, Zhang GL, Chen GP, He GX, Guo RQ. 2017c. Spectral optimization of color temperature tunable white LEDs based on perovskite quantum dots for ultrahigh color rendition. Opt Mater Express. 7(9):3065–3076.
  • Zhong P, He G, Zhang M. 2012. Spectral optimization of the color temperature tunable white light-emitting diode (LED) cluster consisting of direct-emission blue and red LEDs and a diphosphor conversion LED. Opt Express. 5(19):A684–93.
  • Zukauskas A, Vaicekauskas R, Ivanauskas F, Gaska R, Shur MS. 2002. Optimization of white polychromatic semiconductor lamps. Appl Phys Lett. 80(2):234–236.
  • Zukauskas A, Vaicekauskas R, Ivanauskas F, Vaitkevicius H, Vitta P, Shur MS. 2009. Statistical approach to color quality of solid-state lamps. IEEE J Sel Top Quantum Electron. 15(4):1189–1198.
  • Zukauskas A, Vaicekauskas R, Shur MS. 2010. Colour-rendition properties of solid-state lamps. J Phys D-Appl Phys. 43(35):354006.

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