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Self-luminous paint is a kind of luminous paint. It emits visible light through fluorescence, phosphorescence or radioluminescence. The following describes the types of self-luminous paints.
This kind of paint has a variety of colors and it can glow when exposed to ultraviolet light. Both sunlight and some artificial lighting tools contain ultraviolet light, but they and their luminous paint applications are called black light and black light effects, respectively. In the fluorescence, the visible light is called white light, which is when these visible light is superimposed, the light seen by the human eye is approximately white.When the UV component of light is modified, 'stepped down' energetically into longer wavelengths, producing additional visible light frequencies, which are then emitted alongside the reflected white light. Human eyes perceive these changes as the unusual 'glow' of fluorescence. When the UV component of light is modified, 'stepped down' energetically into longer wavelengths, producing additional visible light frequencies, which are then emitted alongside the reflected white light. Human eyes perceive these changes as the unusual 'glow' of fluorescence.
The fluorescent paint can be divided into visible paint and invisible paint. The visible fluorescent paint can be any color under white light and appears bright in the dark. The Invisible fluorescent paint is transparent during the daytime but glows under ultraviolet light. Both paints have a wide range of applications in the need for artistic lighting effects, especially for darker environments such as theatre, bar, shrine, etc.
It is made of phosphors such as silver-activated zinc sulfide or doped strontium aluminate, which usually emits light green or light blue colors. The principle of this paint producing light is similar to that of fluorescent paint, but it can emit light for a long time after absorbing light energy. Phosphoric paints can continuously emit light, after absorbing light energy, it can emit light for more than 12 hours. In a dark environment, the brightness of the light it emits will gradually decrease over time. This paint has been used to make signs in the building and on the plane, or to decorate the house. This kind of paint can be applied to the wall, and at night it will emit light, like the stars in the sky. When applied as a paint or a more sophisticated coating, phosphorescence can be used for temperature detection or degradation measurements known as phosphor thermometry.
Radioluminescent paint is a kind of self-luminous paint, which is composed of a small amount of radioisotopes mixed with chemicals such as radioluminescent phosphors. The radioisotopes decay constantly, then emit radioactive particles, stimulate phosphor molecules, and excite them to emit visible light. The isotopes used in the manufacture of paint are usually strong emitters of β radiation because such radiation can not penetrate the enclosure. The radioluminescent paints do not need to absorb light energy to emit light, when the isotope decays, it stops glowing. In general, this kind of paint can glow for more than 10 years, and it can be used for a long time.