Black Light Energy
Black light energy is a sort of energy efficiency heating source that releases very little light visible by the naked human eye, contradicting its name. The wavelength of black light energy source begins at one very end of the visible light range in the high energy visible light range (HEV). These HEV waves will be visible to the human eye as deep violets and blues, after which the wavelengths become extremely short and spread out that they can hardly be detectable to the human eye, creating a ‘black light’ or Ultra-violet radiation.
One of the commonest black light is a fluorescent tube that has an inner coating that inhibits the wavelengths from passing through the fluorescent glass. Note however that a black light can use the same ballast and lightbar as ordinary fluorescent lighting. Because most of the light from the black light is not visible, it illuminates dimly with deep violet or deep blue glow that is sometimes known as ‘black violet or blue light’.
Even though all black lights energy sources will emit Ultra Violet rays, they can be utilized for different purposes based on their wavelengths within the Ultra Violet range. Typically, wavelengths are measured in nanometers, where the Ultra Violet spectrum falling between 100 and 380 nanometers. The range is divided into three major categories:-
1. UV-A380nm - 315nm which is a long wave and can be used as black light energy for concerts and entertainment, it makes materials in clubs glow 2. UV-B 314nm - 280nm, a medium wave that is used in forensic applications 3. V-C 279nm - 200nm, a short wave that is mostly used for sterilization and germicidal
The term ‘long and medium wave’ are relative in this case seeing as it is that all Ultra Violet waves are short when compared to the red end of the detectable light range. Even so, the terms are at times used to differentiate the different types of ultra violet devices alongside their applications.
Due to the possible harm to the eyes coming from the invisible radiation, it is always advisable not to stare into any source of black light energy. People who work with black lights energy sources are advised to put on protective eyewear with yellow-tinted lenses. The tint is meant to counteract the blue or violet light waves near the UV range or in the HEV. However, occasional exposure to any source of black light energy is not harmful.
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