LED UV black lights - Useful tool for security, special effects
Black light is also a light but totally different with other lights. Black light is invisible to the human eye. If a room is equipped with black light, it remains in darkness even the normal light is on. So why do people invent LED black lights if they’re not for lighting things? They do light things indeed but not normal things. The only thing that turns visible to human eyes under black light is fluorescent substances as they absorb UV light emitted by blacklight sources and appear to glow in our eyes. And in this article, you will learn how black lights are applied.
LED UV Black lights are used in security and anti-counterfeiting
Given its nature, LED UV black light is used in security and anti-counterfeiting technology.
Government documents are confidential so only specific people or organizations have the right to open them. In order to mark the documents as real, they are sealed with fluorescent markers, which only glow under black light. It makes it harder to falsify the documents.
The technology also applied for other valuables like currencies, antique paintings, and glass. Money counters can detect counterfeit money, using UV light. Each government has its own ways to make the currency denomination unique. In the photo of the 10 Hong Kong dollars, digit 10 glows under black lights. Or in the US dollars, there is a thread running from the top to the bottom of the notes. The thread of each note glow different colors.
LED UV Black lights are used for amusement parks, events
Black light is used to detect markers printed by UV ink at events
Nowadays many nightclubs and amusement parks use UV ink stamped on attendees’ hands as a ticket. It is not only a security method but also a fashionable and special pattern for the night events like these. Imagine when the dark covers the crowd, black lights are on and all the stamps appear to glow, it must be a special visual effect.
LED UV Black lights are used in art and performances
LED UV black light is used in a performance
The applications of black lights in security and amusement are only small fields. The way they are applied in art and performances might be the best one to give the impression of magic.
Many artists put UV paint on their bodies, while others have UV tattoos. They combine UV paint with normal paint so that under normal lights, the painting looks normal, but in black lights, it becomes more emotional and special.
On another dimension, a black theater exists, where the stage, curtains and lights are black. Actors would wear fluorescent costumes to perform in the black light and create intricate visual illusions. The above picture is an example of this magical effect.
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