itsevalaiseva
Itsevalaiseva is a Finnish term that translates to "self-luminous" or "phosphorescent" in English. It describes a material or object that emits light without external stimulation, such as heat or electricity, after being exposed to a light source. This phenomenon is a form of luminescence, specifically phosphorescence, where energy is absorbed and then slowly re-emitted as light over a period of time.
The effect is typically achieved through the use of phosphorescent pigments. These pigments contain compounds, often
Common applications for itsevalaiseva materials include safety signage, emergency exit markers, watches, toys, and decorative items.