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Stabilization of the Spectral Power Distribution of a Tunable Multichannel LED Lighting System

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Computational Color Imaging (CCIW 2024)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 15193))

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Abstract

The advancements in Light-Emitting Diodes (LEDs) have allowed spectrally tunable light sources to gain attention in many fields of research thanks to their ability to produce a specific light output. However, LED outputs can fluctuate with temperature, and aging components can lead to noticeable discrepancies in light characteristics. This study thoroughly examines the Telelumen Dittosizer light player LED panel to exemplify a commercially available device and the associated challenges in predicting and stabilizing its output. Then, we introduce an innovative algorithm aimed at addressing such a stabilization challenge, based on a straightforward characterization procedure along with an external spectrometer. The accuracy of the algorithm was validated with different inputs, achieving a \(\varDelta _{E,2000}\) lower than 0.5. Our findings demonstrate the ability to stabilize the spectral power distribution for a minimum of 30 min. The proposed algorithm is hardware-independent and adaptable to any combination of spectrally tunable light sources and spectrometers.

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Acknowledgements

This work has been funded by a public grant from the French National Research Agency (ANR) under the “France 2030” investment plan, which has the reference EUR MANUTECH SLEIGHT - ANR-17-EURE-0026.

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Authors and Affiliations

  1. Laboratoire Hubert Curien, Université Jean Monnet, 18 Rue Professeur Benoît Lauras Bâtiment F, 42000, Saint-Étienne, France

    Sofiane Vernet, Éric Dinet, Alain Trémeau & Philippe Colantoni

  2. Chiba University, 1-33 Yayoicho, Inage Ward, Chiba, 263-8522, Japan

    Rei Nakayama

Authors
  1. Sofiane Vernet
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  2. Rei Nakayama
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  3. Éric Dinet
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  4. Alain Trémeau
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  5. Philippe Colantoni
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Corresponding author

Correspondence to Sofiane Vernet .

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Editors and Affiliations

  1. University of Milano-Bicocca, Milan, Italy

    Raimondo Schettini

  2. Université Jean Monnet, Saint-Etienne, France

    Alain Trémeau

  3. Norwegian University of Science and Technology, Trondheim, Norway

    Shoji Tominaga

  4. University of Milano-Bicocca, Milan, Italy

    Simone Bianco

  5. University of Milano-Bicocca, Milan, Italy

    Marco Buzzelli

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Vernet, S., Nakayama, R., Dinet, É., Trémeau, A., Colantoni, P. (2025). Stabilization of the Spectral Power Distribution of a Tunable Multichannel LED Lighting System. In: Schettini, R., Trémeau, A., Tominaga, S., Bianco, S., Buzzelli, M. (eds) Computational Color Imaging. CCIW 2024. Lecture Notes in Computer Science, vol 15193. Springer, Cham. https://doi.org/10.1007/978-3-031-72845-7_7

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  • DOI: https://doi.org/10.1007/978-3-031-72845-7_7

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