Light & Engineering 33 (1) 2025

Volume 33
Date of publication 02/20/2025
Pages 32–38

Colorimetric Characteristics of LED Luminaire Evaluation in Dependence on Scanning Parameters of Spectrogonioradiometer L&E, Vol.33, No.1, 2025

Articles authors:

Mikhail V. Abramov, Sergey V. Prytkov, Yulia S. Poldina, Alexey A. Pankratov

Mikhail V. Abramov, engineer. Graduated with the Bachelor’s degree in 2023 from the National Research Ogarev Mordovia State University in the specialty “Optotechnics”. At present, he is a lecturer at the Lighting Engineering Department of the National Research Ogarev Mordovia State University. His research interests: study of colorimetric characteristics of LED luminaires, irradiation installations, design and construction of measuring devices in the field of photometric and radiometric measurements, study of the UV region of optical radiation

Sergey V. Prytkov, Ph. D., graduated from the Ogarev Mordovia State University in 2010. At present, he is Associate Professor of the Department of Lighting Engineering. His places of employment are Education National Research Ogarev Mordovia State University, Institute of Electronics and Lighting Engineering, Department of Lighting Engineering. His research interests: metrology of optical radiation, development of metrological complexes for measuring photometric, colorimetric values of visible radiation, energy and effective values of ultraviolet radiation, lighting calculation

Yulia S. Poldina, engineer, head of the testing laboratory of electric lamps and lighting products of the VNIIIS named after A.N. Lodygin, the 1st year magister grant of the Electronics and Nano-electronics training direction of the Institute of Electronics and Lighting Engineering of the National Research Mordovia State University named after N.P. Ogarev. She graduated from the same university in 2014. The fields of her scientific interests: measurement and control of the light sources parameters, development of metrological complexes for the measuring of photometric and colorimetric values

Alexey A. Pankratov, engineer, Chief Metrologist of the VNIIIS named after A.N. Lodygin. He graduated the N.P. Ogarev Mordovia State University in 2014 by speciality of “Metrology and metrological support”. The fields of his scientific development are measurement and control of the light source’s parameters, development of metrological complexes for the measuring of photometric and colorimetric values

Abstract:

This article discusses the effect of the scanning resolution and the range of the vertical angle grid on the calculated value of the correlated colour temperature of LED luminaire with different types of distribution curve of luminous intensity. It also touches upon the effects of secondary LED optics on the correlated colour temperature and the spatial non-uniformity of chromaticity of luminaire. A RIGO 801 near-field goniophotometer was used to obtain a data array with the spatial distribution of the irradiance spectral distribution. As a result of the study, it was found that the value of the measurement step in the vertical plane has little effect on the spread of the calculation results, while the range of angles in the vertical plane has a much more significant effect on the calculation results. In addition, it was noted that the use of optics helps to reduce the value of the correlated colour temperature due to the absorption of the short-wave component of the LED radiation and can also lead to an increase in the spatial non-uniformity of chromaticity. The results of the study presented in this article will serve for practical application in the development and improvement of standards regulating the measurement and calculation of colorimetric characteristics of light sources and luminaires, the design of measuring complexes and the creation of lighting projects.

References:

1. Standard RF: GOST 34819–2021. Luminiares. Lighting requirements and test methods [Pribory’ osvetitel’ny’e. Svetotexnicheskie trebovaniya i metody’ ispy’tanij] / Introduced 2022–01–20, Standartinform, 2022, 58 p.
2. Standard RF: GOST R 8.971–2019 LED lamps, luminaires and modules. Methods for measuring photometric and colorimetric characteristics [Lampy’, svetil’niki i moduli svetodiodny’e. Metody’ izmereniya fotometricheskix i kolorimetricheskix xarakteristik] Introduced 2020–04–01 / Standartinform, 2019, 18 p.
3. Standard RF: GOST R 55703–2013 Electric light sources. Methods of measuring spectral and colour characteristics. [Istochniki sveta e’lektricheskie. Metody’ izmerenij spektral’ny’x i czvetovy’x xarakteristik] / Introduced 2014–07–01, Standartinform, 2015, 53 p.
4. Danilko, A.V., Karev, A.V., Kornyakov, S.O. Issues of accounting for the inhomogeneity of radiation colour in the production and operation of luminaires with LEDs [Voprosy’ uchyota neodnorodnosti czvetnosti izlucheniya pri proizvodstve i e’kspluatacii osvetitel’ny’x priborov so svetodiodami] // Svetotekhnika, 2022, No. 3, pp 4–9.
5. Zheleznikova, O. E., Prytkov, S. V., Vilkov, E.A. On the issue of choosing the optimal method for calculating the correlated colour temperature [K voprosu vy’bora optimal’nogo metoda raschyota korrelirovannoj czvetovoj temperatury’] // Automation. Modern Technologies, 2018, No. 1 (72), pp. 32–36.
6. Zheleznikova, O. E., Prytkov, S. V., Kokinov, A.M. Evaluation of methods for calculating correlated colour temperature [Ocenka metodov raschyota korrelirovannoj czvetovoj temperatury’] // Natural and technical sciences, 2017, No. 8, pp 80–86.
7. CIE 63: The Spectroradiometric Measurement of Light Sources (E) The International Commission on Illumination (CIE), 1984, 63 p.
8. IESNA Computer Committee Approved Method: Electrical and Photometric Measurements of Solid-State Lighting Products / IESNA Computer Committee, New York: Illuminating Engineering Society of North America, 2008, 23 p.
9. Johansson, R. Numerical python: A practical techniques approach for industry / R. Johansson, New York: Apress, 2015, 503 p.
10. Prytkov, S. V., Kolyadin, M.V. Error estimation for the methods of correlated colour temperature calculation // Light & Engineering, 2021, Vol. 29, # 3, pp. 70–77.
11. Robertson, A.R. Computation of correlated colour temperature and distribution temperature // Journal of the Optical Society of America. 1968, (58), pp. 1528–1535.
12. Zheleznikova, O. E., Prytkov, S. V., Kokinov, A.M. Evaluation of correlated colour temperature calculation methods // Journal of Engineering and Applied Sciences. 2017, No. 8 (12), pp. 2054–2057.

Keywords

DOI: https://doi.org/10.33383/2024-078

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