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LED Luminaires: Many Chips—Many Photometric and Lighting Simulation Issues to Solve

Author

Listed:
  • Krzysztof Skarżyński

    (Lighting Technology Division, Electrical Power Engineering Institute, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland)

  • Wojciech Żagan

    (Lighting Technology Division, Electrical Power Engineering Institute, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland)

  • Kamil Krajewski

    (Spectra Lighting Ltd., Ostródzka 53, 03-289 Warsaw, Poland)

Abstract

Currently, built LED luminaires are usually multi-source. This causes a large number of photometric and simulation problems connected with computer lighting visualization. This paper highlights three key issues with these luminaires: a change in the traditional understanding of the coordinate system for these luminaires, the photometric test distance of these luminaires and the need for the photometric separation of a single LED in the computer lighting simulation process. An optical model of a linear LED luminaire used in floodlighting was formulated on this basis. The presented conclusions refer to practical applications. Thus, it is necessary to address the crucial points that specify the coordinate system for the multi-source LED luminaire by its designer and present the information in a datasheet. The other important points concern determining the appropriate photometric test distance for the multi-source LED luminaires of a given type and creating photometric files for the different distances in the operation of the luminaire. Taking the above ideas into account will lead to an improvement in the quality and accuracy of lighting measurements and simulations.

Suggested Citation

  • Krzysztof Skarżyński & Wojciech Żagan & Kamil Krajewski, 2021. "LED Luminaires: Many Chips—Many Photometric and Lighting Simulation Issues to Solve," Energies, MDPI, vol. 14(15), pages 1-17, July.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:15:p:4646-:d:605756
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    References listed on IDEAS

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    1. Jose Luiz F. Barbosa & Dan Simon & Wesley P. Calixto, 2017. "Design Optimization of a High Power LED Matrix Luminaire," Energies, MDPI, vol. 10(5), pages 1-18, May.
    2. Genevieve Martin & Christophe Marty & Robin Bornoff & Andras Poppe & Grigory Onushkin & Marta Rencz & Joan Yu, 2019. "Luminaire Digital Design Flow with Multi-Domain Digital Twins of LEDs," Energies, MDPI, vol. 12(12), pages 1-28, June.
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    Cited by:

    1. Dariusz Czyżewski, 2023. "The Photometric Test Distance in Luminance Measurement of Light-Emitting Diodes in Road Lighting," Energies, MDPI, vol. 16(3), pages 1-20, January.

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