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Less Light

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Light is important in the animals and plant life cycle. Depending on the species, it will have a power of attraction or repulsion. Some birds or insects will be attracted and be disoriented by the light. While some bats or mammals will avoid this light, that participate to habitat fragmentation. There is a lot of studies that increase this awareness of light pollution in cities. France has even integrated the notion of "Black Corridor" in addition to the Green and Blue Corridor, to preserve and restore an ideal ecological network to nightlife.

Technology and IT have a role to play in this transition, providing innovative solutions that will help reduce our light pollution.

→ How to reduce the impact of light in rural and urban area (Smartlighting) ?

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3 lines of action :
- Time axis (schedules, durations, ...) → motion sensor ?
- Spatial axis (density, position, ...) → Acting on the mapping of light ?
- Luminaire characteristics (height, spectrum, flux, ...)

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Manon Frédout (
Naomi Fisher (
Angélique Ries (
Hervé Aymes (
Jérémy Leriche (

(SDW M2)
- Gwenaelle Cussac
- Andy Focheux
- Nicolas Le Petit
- Wafa Kaddour


- Travis Longcore ; Catherine Rich, 2004, Ecological light pollution

- Hölker, F. ; Wolter, C. ; Perkin, E. K. ; Tockner, K., 2010, Light pollution as a biodiversity threat.


- Fabio Falchia ; Pierantonio Cinzano ; Christopher D.Elvidge ; David M.Keith ; Abraham Haimd, 2011, Limiting the impact of light pollution on human health, environment and stellar visibility



- Cf projet de Lille Luicole :
- Luciole ce n’est pas que sur la lumière, il y a aussi des enrobée claire :
- Quelques chiffres concernant l’éclairage public :
- Corrélation entre les lumières et les insectes :
- Surfer sur la vague de la “Smart city”:
- Document produit par le gouvernement pour parler de la nuisance lumineuse :