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An EPFL study shows red light, like blue, causes stronger glare than white, challenging the century-old and globally used function that describes how the human eye responds to different light wavelengths. The findings have implications for standards and research, as well as for the comfort of building occupants. Senior scientist Jan Wienold with the colored filters used during the experiment.

An EPFL study shows red light, like blue, causes stronger glare than white, challenging the century-old and globally used function that describes how the human eye responds to different light wavelengths. The findings have implications for standards and research, as well as for the comfort of building occupants. Senior scientist Jan Wienold with the colored filters used during the experiment.

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Themes
Research and Tech Transfer , ENAC, Research and Tech Transfer, Architecture
Copyright
EPFL/Alain Herzog
Licence
CC0 Licence
Shooting date
Oct. 14, 2025
Album
Red is shown to create a surprising amount of glare

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