[Le Parisien] Essonne tests glow-in-the-dark paint on cycle path

17/07/2023

Press

A new type of road marking is being tested between Angerville and Pussay. This photoluminescent paint makes cycle paths safer without the need for streetlights.

Whether it's early in the morning or late at night, before or after sunset, cyclists and pedestrians using the voie verte between Pussay and Angerville can use the ground markings to help them find their way. And that's thanks to the pale yellow paint used to mark out this 3 km asphalt path along the D838: it has the particularity of restoring at night the light stored up during the day, for up to 10 hours continuously.

Piste cyclable photoluminescente de nuit

https://www.leparisien.fr/essonne-91/sur-une-piste-cyclable-lessonne-teste-une-peinture-qui-brille-dans-le-noir-17-07-2023-ICDA4LAPCFCPDOP2TQ5QLRS2HY.php

What is photoluminescence?

Photoluminescence is a physical process whereby a material absorbs photons from a light source and re-emits them. To achieve this, the body is subjected to radiation of varying intensity, which excites the electrons present in the substance. These electrons store the light, store the energy and release it when there is a total absence of light.

Thanks to photoluminescence, the substance can be recharged indefinitely by daylight or artificial lighting. Our LuminoKrom® photoluminescent paint exploits exactly this physical phenomenon.

What are the advantages of photoluminescence?

How long does paint luminescence last?

What surfaces can LuminoKrom® paint be applied to?