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Reduction of discomfort glare through relative positioning of LED luminary and observer

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Abstract

Nowadays, LED lamps are available in small sizes. They are safe, mercury-free, having long lifespan and low power consumption. So they are replacing a conventional incandescent bulb, fluorescence tube, and CFL sources. Small size and highly bright LEDs are used in LED fixtures, which result into higher peak luminance and high contrast, which results in discomfort glare. Visual comfort is an important parameter to measure the quality of lighting system and prevention of discomfort glare is necessary. Discomfort glare is difficult to assess as it depends on subjective sensations. This paper reports study of discomfort glare with the relative position of LED luminary and observer and reduction of discomfort glares using occlusion.

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References

  1. A. Wolska, D. Sawicki, Evaluation of discomfort glare in the 50+ elderly: experimental study. Int J Occup Med Environ Health 27, 444–459 (2014)

    Article  Google Scholar 

  2. M. Rubiño, A. Cruz, J. Garcia, E. Hita, Discomfort glare indices: a comparative study. Appl. Opt. 33, 8001–8008 (1994)

    Article  ADS  Google Scholar 

  3. W. Huang, Y. Yang, M.R. Luo, Discomfort glare caused by white LEDs having different spectral power distributions. Light. Res. Technol. 50, 921–936 (2018)

    Article  Google Scholar 

  4. D. Sawicki, A. Wolska, in 2016 IEEE Lighting Conference of the Visegrad Countries (Lumen V4), pp.1–6.

  5. M.G. Kent, S. Fotios, S. Altomonte, Discomfort glare evaluation: The influence of anchor bias in luminance adjustments. Light. Res. Technol. 51, 131–146 (2019)

    Article  Google Scholar 

  6. R.G. Hopkinson, Evaluation of glare. Illum. Eng. 52, 305 (1957)

    Google Scholar 

  7. J. Bullough, K. Sweater-Hickcox, N. Narendran, A method for estimating discomfort glare from exterior lighting system. Alliance Solid-State Illumin. Syst. Technol. 9, 1–7 (2011)

    Google Scholar 

  8. A. Gago-Calderón, M.J. Hermoso-Orzáez, D. Andres-Diaz, J. Ramon, G. Redrado-Salvatierra, Evaluation of uniformity and glare improvement with low energy efficiency losses in street lighting LED luminaires using laser-sintered polyamide-based diffuse covers. Energies 11, 816 (2018)

    Article  Google Scholar 

  9. A.R. Son, I.-T. Kim, A.-S. Choi, M.-K. Sung, Analysis of UGR values and results of UGR calculations in commercial lighting simulation software. Leukos 11, 141–154 (2015). https://doi.org/10.1080/15502724.2015.1016614

    Article  Google Scholar 

  10. P. Iacomussi, M. Radis, G. Rossi, L. Rossi, Visual comfort with LED lighting. Energy Procedia 78, 729–734 (2015). https://doi.org/10.1016/j.egypro.2015.11.082

    Article  Google Scholar 

  11. T. Kimura-Minoda, M. Ayama, Evaluation of glare from color LEDs for young and elderly. J. Light Visual Environ. 36, 59–63 (2012)

    Article  ADS  Google Scholar 

Download references

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Correspondence to P. R. Yawale.

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Co-authors: V. G. Wagh and A. D. Shaligram

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Yawale, P.R., Wagh, V.G. & Shaligram, A.D. Reduction of discomfort glare through relative positioning of LED luminary and observer. J Opt 51, 65–70 (2022). https://doi.org/10.1007/s12596-021-00756-1

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  • DOI: https://doi.org/10.1007/s12596-021-00756-1

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