Ultraviolet Light Uses
It can be used to imitate the impact of sunlight on the skin.
Ultraviolet light uses. Tanning and skin treatment. Ultraviolet light is also used to destroy bacteria and viruses. By modifying their cameras they can collect only the uv light that hits the camera sensor. In physics ultraviolet radiation is traditionally divided into four regions.
Ultraviolet light uv is a part of normal electromagnetic radiation. Medical uses of ultraviolet light include disinfection and sterilization without the use of chemicals. Ultraviolet light uses in medicine research daily life. This effect is put to use in a number of ways one of which is to harden special glues quickly.
But it cannot be seen with naked eyes unlike visible light. Uv light is used for tanning. May 23 2020 october 28 2016 by ranga nr. Ultraviolet uv is a form of electromagnetic radiation with wavelength from 10 nm with a corresponding frequency of approximately 30 phz to 400 nm 750 thz shorter than that of visible light but longer than x rays uv radiation is present in sunlight and constitutes about 10 of the total electromagnetic radiation output from the sun it is also produced by electric arcs and specialized.
Ultraviolet light is a type of electromagnetic radiation that makes black light posters glow and is responsible for summer tans and sunburns. For indoor tanning use of uv light is very common. Here we are going to discuss the various uses of uv lamps. This process is called curing.
In the year 1877 two english scientists named downes and blunt discovered that bacteria died in the sunlight. However too much exposure to uv radiation is. Our bodies use it to make vitamin d but. Nature photographers may use uv photography to capture patterns in flowers the human eye cannot see.
Ultraviolet germicidal irradiation uvgi is a disinfection method that uses short wavelength ultraviolet ultraviolet c or uv c light to kill or inactivate microorganisms by destroying nucleic acids and disrupting their dna leaving them unable to perform vital cellular functions. Uvgi is used in a variety of applications such as food air and water purification. This was because uv could make certain substances change chemically. Uv radiation used to be called chemical rays after it was first discovered in the early 19 th century.
Uv is light energy with the wavelengths in the range of 10 to 400nm. Near 400 300 nm middle 300 200 nm far 200 100 nm and extreme below. The uv light has higher energy compared to the visible light and so it is more useful. Ultraviolet uv light is a type of electromagnetic radiation that is all around us even though our eyes can t detect it.