Optimizing Classroom Lighting: Balancing Illuminance Uniformity and Glare Control with Led Technology
Main Article Content
Abstract
Indoor lighting environment significantly impacts students’ concentration and learning performance. Optimal lighting conditions enhance reading speed, accuracy, and comprehension abilities. In contrast, poor lighting conditions may lead to decreased concentration and increased errors in tasks. Therefore, classroom lighting is an important factor to consider in classroom design to optimize cognitive efficiency of students. Current classroom lighting solutions using LED systems have met European Norm (EN) standard in terms of illuminance and energy efficiency. However, although the issue of glare has been addressed, it has not been completely resolved. This study introduces a solution for glare-free classroom lighting that maintains uniformity while adhering to existing standards. This approach aims to create a visually comfortable learning environment, balancing effective lighting with glare reduction.
References
[2] N. Wessolowski, H. Koenig, M. S. Markwort, C. Barkmann, The Effect of Variable Light on the Fidgetiness and Social Behavior of Pupils in School, Journal of Environmental Psychology, Vol. 39, 2014, pp. 101-108, https://doi.org/10.1016/J.JENVP.2014.05.001.
[3] P. Sleegers, N. Moolenaar, M. Galetzka, A. Pruyn, B. Sarroukh, B. Zande, Lighting Affects Students’ Concentration Positively: Findings from three Dutch Studies, Lighting Research & Technology, Vol. 45, No. 2, 2013, pp. 159-175, https://doi.org/10.1177/1477153512446099.
[4] J. Xu, M. Liu, L. Li, Z. Xia, Effects of Environmental Lighting on Students’ Sleep, Alertness and Mood: A Field Study in a Chinese Boarding School, Lighting Research & Technology, Vol. 56, No. 2, 2024, pp. 185-206, https://doi.org/10.1177/14771535231165263.
[5] Q. Liu, Z. Huang, Z. Li, M. R. Pointer, G. Zhang, Z. Liu, H. Gong, Z. Hou, A Field Study of the Impact of Indoor Lighting on Visual Perception and Cognitive Performance in Classroom, Applied Sciences, Vol. 10, No. 21, 2020, pp. 7436, https://doi.org/10.3390/APP10217436.
[6] B. A. Holden, T. R. Fricke, D. A. Wilson, M. Jong, K. S. Naidoo, P. Sankaridurg, T. Y. Wong, T. J. Naduvilath,
S. Resnikoff, Global Prevalence of Myopia and High Myopia and Temporal Trends from 2000 through 2050, Ophthalmology, Vol. 123, 2016, pp. 1036-1042, https://doi.org/10.1016/j.ophtha.2016.01.006.
[7] S. Vitale, R. D. Sperduto, F. L. Ferris, Increased Prevalence of Myopia in the United States Between 1991-1972 and 1999-2004, Arch Ophtalmol. Vol. 127, No. 12, 2009, pp. 1632-1639, https://doi.org/10.1001/archophthalmol.2009.303.
[8] R. J. Lucas, S. N. Peirson, D. M. Berson, T. M. Brown, H. M. Cooper, et al., Measuring and Using Light in the Melanopsin Age, Trends Neurosci. Vol. 37, No. 1, 2014, pp. 1-9, https://doi.org/10.1016/j.tins.2013.10.004.
[9] Hanoi Eye Hospital 2, Current Status of Myopia in Vietnam, Statistics Data in 2023, https://mathanoi2.vn/kien-thuc/thuc-trang-can-thi-o-viet-nam.html, 2022 (accessed on: Janurary 14th, 2024) (in Vietnamese).
[10] X. You, L. Wang, H. Tan, X. He, X. Qu, H. Shi, J. Zhu, H. Zou, Near Work Related Behaviors and Myopic Shifts in Primary School Students, PLOS ONE, 2016, pp. 0154671, https://doi.org/10.1371%2Fjournal.pone.0154671.
[11] P. Khademagha, M. B. C. Aries, A. L. P. Rosemann, E. J. Loenen, Implementing Non-Image-Forming Effects of Light in the Built Environment: A Review on What We Need, Building and Environment, Vol. 108, 2016,
pp. 263-272, https://doi.org/10.1016/j.buildenv.2016.08.035.
[12] Standard EN 12464-1:2021, Light and Lighting-Lighting of Workplaces-Part 1: Indoor Work, BSI Standards Publication, 2021, pp. 69-73.
[13] Z. T. Ye, M. J. Ruan, H. C. Kuo, CSP–LEDs Combined with Light Guide Without Reflective Matrix for Antiglare Design, IEEE Access. Vol. 8, 2020, pp. 156718–156726, https://doi.org/10.1109/ACCESS.2020.3019314.
[14] C. W. Chiang, Y. K. Hsu, J. W. Pan, Design and Demonstration of High Efficiency Anti-Glare LED Luminaires for Indoor Lighting, Opt. Express, Vol. 23, 2015, pp. A15-A26, https://doi.org/10.1364/OE.23.000A15.
[15] H. K. Walker, W. D. Hall, J. W. Hurst, Clinical Methods: The History, Physical, and Laboratory Examinations, Butterworths, Boston, 1990.