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Opportunities and challenges to understanding temporal light modulation effects on people

From National Research Council Canada

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  1. National Research Council Canada. Construction
FormatText, Address
ConferenceCIE Australia Lighting Research Conference 2023,February 7, 2023, Sydney, Australia
Subjectflicker; temporal light modulation (TLM); stroboscopic effect; lighting; LED
Abstract
Temporal variation in the light output of light sources and lighting systems (temporal light modulation, TLM) is sometimes a feature (e.g., signal flashes) but more often is an undesirable side-effect of product or system design and/or operation. TLM explains the association of magnetically-ballasted fluorescent lighting systems with headache and eyestrain complaints. These complaints largely disappeared following the adoption of electronic ballasts, but the introduction of light-emitting diode (LED) lamps and lighting systems has renewed researcher, manufacturer, and regulator attention to TLM. This presentation will provide a brief overview of some of the visual, behavioural, and neurological problems that TLM can cause, identifying some of the most urgent research questions and describing why TLM is a very difficult lighting parameter to measure and to investigate.
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LanguageEnglish
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Record identifierfed6e50f-67ea-4899-8557-c7f480429e24
Record created2023-05-17
Record modified2023-05-18
Date modified: