Loisteaine

Loisteaine is a Finnish term that translates to "glitter substance" or "luminescent material." It generally refers to substances that emit light, either through fluorescence or phosphorescence. These materials absorb energy from an external source, such as ultraviolet light, and then re-emit that energy as visible light.

The distinction between fluorescent and phosphorescent materials lies in the duration of light emission after the excitation source is removed. Fluorescent substances emit light almost immediately and cease to glow once the source is gone. Phosphorescent substances, on the other hand, continue to emit light for a period after the excitation source is removed, a phenomenon often referred to as "afterglow."

Loisteaine can be found in a variety of applications. In decorative contexts, it is used in paints, inks, and craft supplies to create shimmering or glowing effects. In more technical applications, phosphorescent loisteaine is utilized in safety signage, exit routes, and emergency lighting, where it provides visibility during power outages. Some toys and novelty items also incorporate these materials for their visual appeal. The specific chemical composition of loisteaine varies depending on its intended use and the desired luminous properties, with different compounds exhibiting different colors and durations of light emission.