Photoluminescence is light emission after the absorption of energy, normally created by light.
Safety Media’s photoluminescent signs are made from strontium aluminate crystals. When exposed to light energy (either natural or artificial) the crystals are charged and undergo a convention process which enables them to re-emit energy.
This provides significant benefits during emergency blackout and evacuation situations, as it clearly identifies the path of egress.
Signs require exposure to at least 54lux (5 foot-candles) of fluorescent, metal halide, mercury vapour or other 4000K light illumination for a minimum of 60 minutes to become fully operational. Light equal to or in excess of 54lux must fall on the face of the sign during building occupancy. This is a requirement at tread level under most building codes.
Our photoluminescent products recycle natural and artificial light. We also use recycled aluminum. All products are non-toxic, non-radioactive and avoid maintenance costs. They are designed to last for 25 years. Ultimately, these signs are recyclable as well!
With no electricity or battery required, all of our photoluminescent signage conform to the Ontario Building Code - CAN/ULC-S572 - “Photoluminescent and Self-Luminous Signs and Path marking Systems".