Improvement of temporal light artefact effects in commercial LED lamps
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2024-11
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en
Pages
10
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Lighting Research and Technology, Volume 56, issue 7, pp. 790-799
Abstract
Temporal light modulation and its potential adverse visual effects on human observers, collectively known as temporal light artefacts (TLAs), have been limited by the European Union Ecodesign regulation. Limitations on two key TLA metrics, flicker and stroboscopic effect, were introduced in September 2021. This study analyses the impact of this regulation on commercial LED lamps by measuring multiple different consumer-grade LED E27 retrofit lamps by several manufacturers before and after the regulation. The lamps purchased after the Ecodesign regulation seem to favour a certain type of LED driver that provides the best TLA behaviour of all lamp types. The regulation, with respect to TLA, has resulted in the replacement of ill-behaving lamp types in the market by newer lamps with better TLA characteristics.Description
Publisher Copyright: © The Chartered Institution of Building Services Engineers 2024.
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Mantela, V, Nordlund, R, Askola, J, Kärhä, P, Dekker, P & Ikonen, E 2024, ' Improvement of temporal light artefact effects in commercial LED lamps ', Lighting Research and Technology, vol. 56, no. 7, pp. 790-799 . https://doi.org/10.1177/14771535241287549