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Measurement of Circadian Effectiveness in Lighting for Office Applications

Babilon, Sebastian ; Beck, Sebastian ; Kunkel, Julian ; Klabes, Julian ; Myland, Paul ; Benkner, Simon ; Khanh, Tran Quoc (2022)
Measurement of Circadian Effectiveness in Lighting for Office Applications.
In: Applied Sciences, 2022, 11 (15)
doi: 10.26083/tuprints-00021234
Artikel, Zweitveröffentlichung, Verlagsversion

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Kurzbeschreibung (Abstract)

Featured Application: In-field spatially resolved light measurements for the characterization of non-visual effects and proper prediction of the circadian effectiveness for human-centric lighting design.

Abstract: As one factor among others, circadian effectiveness depends on the spatial light distribution of the prevalent lighting conditions. In a typical office context focusing on computer work, the light that is experienced by the office workers is usually composed of a direct component emitted by the room luminaires and the computer monitors as well as by an indirect component reflected from the walls, surfaces, and ceiling. Due to this multi-directional light pattern, spatially resolved light measurements are required for an adequate prediction of non-visual light-induced effects. In this work, we therefore propose a novel methodological framework for spatially resolved light measurements that allows for an estimate of the circadian effectiveness of a lighting situation for variable field of view (FOV) definitions. Results of exemplary in-field office light measurements are reported and compared to those obtained from standard spectral radiometry to validate the accuracy of the proposed approach. The corresponding relative error is found to be of the order of 3–6%, which denotes an acceptable range for most practical applications. In addition, the impact of different FOVs as well as non-zero measurement angles will be investigated.

Typ des Eintrags: Artikel
Erschienen: 2022
Autor(en): Babilon, Sebastian ; Beck, Sebastian ; Kunkel, Julian ; Klabes, Julian ; Myland, Paul ; Benkner, Simon ; Khanh, Tran Quoc
Art des Eintrags: Zweitveröffentlichung
Titel: Measurement of Circadian Effectiveness in Lighting for Office Applications
Sprache: Englisch
Publikationsjahr: 2022
Publikationsdatum der Erstveröffentlichung: 2022
Verlag: MDPI
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Applied Sciences
Jahrgang/Volume einer Zeitschrift: 11
(Heft-)Nummer: 15
Kollation: 19 Seiten
DOI: 10.26083/tuprints-00021234
URL / URN: https://tuprints.ulb.tu-darmstadt.de/21234
Zugehörige Links:
Herkunft: Zweitveröffentlichung aus gefördertem Golden Open Access
Kurzbeschreibung (Abstract):

Featured Application: In-field spatially resolved light measurements for the characterization of non-visual effects and proper prediction of the circadian effectiveness for human-centric lighting design.

Abstract: As one factor among others, circadian effectiveness depends on the spatial light distribution of the prevalent lighting conditions. In a typical office context focusing on computer work, the light that is experienced by the office workers is usually composed of a direct component emitted by the room luminaires and the computer monitors as well as by an indirect component reflected from the walls, surfaces, and ceiling. Due to this multi-directional light pattern, spatially resolved light measurements are required for an adequate prediction of non-visual light-induced effects. In this work, we therefore propose a novel methodological framework for spatially resolved light measurements that allows for an estimate of the circadian effectiveness of a lighting situation for variable field of view (FOV) definitions. Results of exemplary in-field office light measurements are reported and compared to those obtained from standard spectral radiometry to validate the accuracy of the proposed approach. The corresponding relative error is found to be of the order of 3–6%, which denotes an acceptable range for most practical applications. In addition, the impact of different FOVs as well as non-zero measurement angles will be investigated.

Status: Verlagsversion
URN: urn:nbn:de:tuda-tuprints-212341
Zusätzliche Informationen:

This article belongs to the Special Issue Advances in Human-Centric Lighting

Data Availability Statement: All data generated or analyzed to support the findings of the present study are included this article. The raw data can be obtained from the authors, upon reasonable request.

Keywords: circadian effectiveness; circadian stimulus; spatially resolved light measurements; office lighting; non-visual effects; human-centric lighting design

Sachgruppe der Dewey Dezimalklassifikatin (DDC): 600 Technik, Medizin, angewandte Wissenschaften > 600 Technik
Fachbereich(e)/-gebiet(e): 15 Fachbereich Architektur
15 Fachbereich Architektur > Fachgruppe F: Gebäudetechnik > Entwerfen und Gebäudetechnologie
15 Fachbereich Architektur > Fachgruppe F: Gebäudetechnik
18 Fachbereich Elektrotechnik und Informationstechnik
18 Fachbereich Elektrotechnik und Informationstechnik > Adaptive Lichttechnische Systeme und Visuelle Verarbeitung
Hinterlegungsdatum: 06 Mai 2022 11:43
Letzte Änderung: 09 Mai 2022 07:08
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