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Evaluation of Lighting Quality Based On Visibility L&E, Vol.31, No.4, 2023

Light & Engineering 31 (4)

Volume 31
Date of publication 08/10/2023
Pages 4–13

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Evaluation of Lighting Quality Based On Visibility L&E, Vol.31, No.4, 2023
Articles authors:
Tatiana V. Smirnova (Meshkova), George V. Boos, Vladimir P. Budak, Ekaterina I. Ilyina

Tatiana V. Smirnova (Meshkova), Ph. D. of Technical Sciences, M. Sc. (Environment Design), Senior Scientific Editor at Svetotekhnika / Light & Engineering Journals. She teaches the course Fundamentals of Lighting Concepts at the Light and Engineering sub-department of NRU MPEI. Her scientific interests revolve around lighting quality, lighting design, visual experiments, and discomfort

George V. Boos, Ph. D. of Technical Sciences, Member of the Russian Academy of Natural Sciences, laureate of State Prize of the Russian Federation, President of the International Lighting Engineering Corporation “BL Group”, Head of the Light and Engineering sub-department of the National Research University “Moscow Power Engineering Institute”, Chairman of the Science and Engineering Council of the Russian Light and Engineering Industry, Chairman of International Technical Committee and National Technical Committee 332 of ROSSTANDARD (Light and Engineering Devices and Electrical Lighting). He graduated from the Moscow Power Engineering Institute (MPEI) in 1986 with qualification of electrical engineer, by specialty in Light and Engineering and Light Sources

Vladimir P. Budak, Doctor of Technical Sciences, Professor. He graduated from MPEI in 1981. Currently he is Editorin-Chief of Svetoekhnika / Light & Engineering Journals, Professor of Light and Engineering Department at NRU MPEI, and Corresponding member of Russian Academy of Electric Sciences

Ekaterina I. Ilyina, M. Sc. She graduated from NRU MPEI in 2004 and works as a development engineer at AMT-Engineering LLC. She is also postgraduate student of the Light and Engineering sub-department at NRU MPEI. Her research interests are lighting quality, psychophysical visual scale perceptual, unified glare rating (UGR), neural networks, near field lighting fixtures

This article discusses the issues of modelling the human centric lighting environment using computer graphics methods. Modern computer graphics programs allow for the calculation of spatial-angular distribution of luminance, a fundamental characteristic that shapes the visual perception of a scene. Richard Kelly, the founder of lighting design, states in his works that the main aspect of the comfortable visual luminous environment creating is the distribution of luminance in space. Analysing the spatial-angular distribution of luminance allows for a new stage in the evolution of assessing the quality of lighting in a simulated or real environment.
By solving the task of forming a set of photometric parameters for human centric lighting (HCL) within this research, the possibility of designing a lighting installation for a specified lighting quality using computer graphics methods is demonstrated.
The term human centric lighting refers to lighting that considers both the visual and non-visual effects of light on humans, starting from the visual representation of the environment and visual comfort, and extending to the impact on sleep quality, wakefulness, mood, and human behaviour.
This article presents a lighting quality criterion based on spatial-angular distribution of luminance and a developed psychophysical scale, which together allow for the assessment of lighting quality using computer graphics methods.
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