What are Photoluminescent Signs?
Put simply, photoluminescent signs are signs which “glow in the dark”. Once darkness falls, they glow. This makes them easy to see in the absence of light.
However, these signs don’t glow by magic – there’s a science behind it all. Photoluminescent signs are illuminated by the action of photoluminescence. This occurs when energy in the form of light (i.e. photons) is absorbed from the surroundings. A special coating both absorbs and stores the energy. Once it gets dark, the stored energy is re-emitted as a luminous glow.