Correspondence: on the state of knowledge concerning the effects of temporal light modulation

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DOI	Trouver le DOI : https://doi.org/10.1177/1477153520959182
Auteur	Rechercher : Veitch, Jennifer A.¹Identifiant ORCID : https://orcid.org/0000-0003-3183-4537; Rechercher : Martinsons, Christophe Identifiant ORCID : https://orcid.org/0000-0002-2286-5991; Rechercher : Coyne, Steve; Rechercher : Dam-Hansen, Carsten Identifiant ORCID : https://orcid.org/0000-0001-7518-4025
Affiliation	Conseil national de recherches Canada. Construction
Format	Texte, Article
Sujet	temporal light modulation; stroboscopic effect; lighting; light sources; perception
Résumé	Temporal light modulation (TLM) is a change in the luminous quantity or spectral distribution of light with respect to time of either a light source or a lighting system. These changes arise because of the device or system design, including drivers and control gear, and because of fluctuations in the electrical supply. In former times, families of lighting products all exhibited the same (or approximately the same) TLM characteristics: For example, AC-powered incandescent lamps shared the property of TLM in a sinusoidal wave at twice the mains frequency and 4%–10% modulation depth. T8 fluorescent lighting systems with electronic ballasts operated with a dominant frequency between 20 kHz and 40 kHz and little modulation depth. Previously, knowing the lighting technology provided sufficient information about the TLM properties of a lighting system; today, this is impossible without measuring the system directly.
Date de publication	2021-01-07
Maison d’édition	Sage
Licence	Creative Commons, Attribution - Pas d’Utilisation Commerciale 4.0 International (CC BY-NC 4.0) https://creativecommons.org/licenses/by-nc/4.0/deed.fr
Dans	Lighting Research & Technology 53, nº 1 : 89–92.
Langue	anglais
Publications évaluées par des pairs	Oui
Numéro du CNRC	NRC-CONST-56407E
Exporter la notice	Exporter en format RIS
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Identificateur de l’enregistrement	ccab7502-6ec0-406d-99c3-f1f2880cd5c2
Enregistrement créé	2021-01-14
Enregistrement modifié	2021-01-14

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Date de modification :: 2026-07-21