Luminescent pigments are materials that emit light when exposed to certain stimuli, such as ultraviolet (UV) light or heat. These pigments can glow in the dark or produce a bright color when activated, making them useful in various applications, including safety signs, toys, and decorative items. They are often made from compounds like zinc sulfide or strontium aluminate, which are known for their ability to store and release energy. These pigments are commonly used in art and design, as well as in scientific and industrial applications. For example, luminescent paints can be applied to surfaces to create eye-catching effects, while photoluminescent materials are used in emergency exit signs to enhance visibility in low-light conditions. Their unique properties make luminescent pigments a versatile choice for enhancing visibility and aesthetics.