The "black" glass tube itself blocks most visible light, so in the end only benign long-wave UV-A light and some blue and violet visible light pass through. Paints and decorations that fluoresce under black light are used in theater and several art forms. This coating absorbs harmful shortwave UV-B and UV-C light and emits UV-A light (in the same basic way the phosphor in a fluorescent lamp absorbs UV light and emits visible light). A tube black light is a basically a fluorescent lamp with a different sort of phosphor coating. There are actually two different types of black light, but they work in basically the same way. Black lights work on this same principle. In a fluorescent lamp, the emitted light is in the visible spectrum - the phosphor gives off white light we can see. This photon has less energy than the original photon, because some energy was lost as heat.
When the electron falls back to its normal level, it releases energy in the form of another photon. When a photon hits a phosphor atom, one of the phosphor's electrons jumps to a higher energy level, causing the atom to vibrate and create heat. Phosphors are substances that give off light - or fluoresce - when they are exposed to light. They do this with a phosphor coating around the outside of the tube. UV light waves are too short for us to see - they are completely invisible - so fluorescent lamps have to convert this energy into visible light. They emit some visible light photons, but mostly they emit photons in the ultraviolet (UV) wavelength range. When energized, mercury atoms emit energy in the form of light photons. All fluorescent or eye-to-face objects will go back to your sight creating an. Fluorescent blacklight lamps generate light by passing electricity through a tube filled with inert gas and a small amount of mercury. 18Watt Ultraviolet UV Wood BlackLight light bulb with standard G13 mount. How a Black Light Works: The conventional black light design is just a fluorescent black light lamp with a couple of important modifications.
0 kommentar(er)
