Additionally, UV-A can have negative effects on eyes in both the short-term and long-term.
#UV BLACK LIGHT SKIN#
UV-A may also contribute to the progression of skin cancers. According to the World Health Organization, UV-A is responsible for the initial tanning of skin and it contributes to skin ageing and wrinkling. UV-A presents a potential hazard when eyes and skin are exposed, especially to high power sources. Strong sources of long-wave ultraviolet light are used in tanning beds. Black lights are employed for decorative and artistic lighting effects, diagnostic and therapeutic uses in medicine, the detection of substances tagged with fluorescent dyes, rock-hunting, scorpion-hunting, the detection of counterfeit money, the curing of plastic resins, attracting insects and the detection of refrigerant leaks affecting refrigerators and air conditioning systems. In medicine, forensics, and some other scientific fields, such a light source is referred to as a Wood's lamp, named after Robert Williams Wood, who invented the original Wood's glass UV filters.Īlthough many other types of lamp emit ultraviolet light with visible light, black lights are essential when UV-A light without visible light is needed, particularly in observing fluorescence, the colored glow that many substances emit when exposed to UV. This stands for "blacklight".īlacklight sources may be specially designed fluorescent lamps, mercury-vapor lamps, light-emitting diodes (LEDs), lasers, or incandescent lamps. These tubes are made for use in " bug zapper" insect traps, and are identified by the industry designation "BL". A second type of lamp produces ultraviolet but does not have the filter material, so it produces more visible light and has a blue color when operating. Blacklight lamps which have this filter have a lighting industry designation that includes the letters "BLB". One type of lamp has a violet filter material, either on the bulb or in a separate glass filter in the lamp housing, which blocks most visible light and allows through UV, so the lamp has a dim violet glow when operating.
The violet glow of a black light is not the UV light itself, but visible light that escapes being filtered out by the filter material in the glass envelope.Ī blacklight, also called a UV-A light, Wood's lamp, or ultraviolet light, is a lamp that emits long-wave ( UV-A) ultraviolet light and very little visible light. Exposure from black lights would be much lower than your exposure to UVA outdoors.Black light fluorescent tubes. Exposure to UVA from black lights is well below the recognised safe limits and is not hazardous to people using them, working in their vicinity or who have them in their home. UVA is thought to cause premature ageing and has recently been linked to some skin cancers, however UVB is the main cause of skin cancer. Many insects can see ultraviolet light so black lights are often used in the “bug zapper” type of insect traps.īlack lights are usually fluorescent lamps or incandescent light bulbs modified to allow only the emission of UVA and some visible light. These particles are found in certain objects, including your teeth and fingernails. This glow is the energy emitted by the light being converted into visible light by particles called phosphors. They are often used in industry, nightclubs or amusement parks to make things glow. Black lights emit a type of ultraviolet radiation called UVA, which is invisible to the human eye. There is no evidence to suggest that insect traps using ultraviolet black light increase your risk of developing skin cancer, as the amount of ultraviolet radiation they emit is very low.
Will the use of this in my home increase my family's risk of developing skin cancer?" I recently bought an insect repellent and noticed that it uses "ultraviolet black light".
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