What is UV diode?

What is UV diode?

UV LEDs stands for Ultraviolet Light Emitting Diodes. These LEDs emit light in the UV spectrum which is usually less than 400nm. UV light is visible to the human eye and usually appears a bluey purple. They are available in a range of different packages, including surface mounted or through-hole.

Is UV LED harmful?

UV LEDs emit intense UV light during operation. Do not look directly into a UV LED while it is in operation, as it can be harmful to the eyes, even for brief periods. Avoid any direct eye exposure to the emission of a UV LED. Keep UV LEDs and products containing them out of the reach of children.

How many nm is UV light?

UV light covers a wavelength spectrum from 100 to 380 nm and is subdivided into three regions by wavelength: UVA (320 to 400 nm), UVB (280 to 320 nm), and UVC (200 to 280 nm) (1).

What does NM mean in UV light?

Ultraviolet (UV) radiation occupies the portion of electromagnetic spectrum from 100 to 400 nanometers (nm).

What UV wavelength is harmful?

UV-B light (290-320nm) causes sunburns with prolonged exposure along with increasing the risk of skin cancer and other cellular damage. About 95% of all UV-B light is absorbed by the ozone in Earth’s atmosphere. UV-C light (100-290nm) is extremely harmful and is almost completely absorbed by Earth’s atmosphere.

Which type of UV radiation is most harmful?

UVC rays
UVB rays, which affect skin’s top layer, cause skin cancer and most sunburns. Although UVA and UVB rays pose the greatest risk for sun damage, people who work with welding torches or mercury lamps may be exposed to UVC rays, the most dangerous type of UV radiation.

What nm is UVC?

200 to 280 nm
UV light covers a wavelength spectrum from 100 to 380 nm and is subdivided into three regions by wavelength: UVA (320 to 400 nm), UVB (280 to 320 nm), and UVC (200 to 280 nm) (1). Among them, UVC has the strongest germicidal effect and is widely used in the form of mercury lamps to inactivate microorganisms.

What is the range of UV?

100-400 nm
The UV region covers the wavelength range 100-400 nm and is divided into three bands: UVA (315-400 nm) UVB (280-315 nm) UVC (100-280 nm).

Do UV lamps increase vitamin D?

Ultraviolet (UV) light therapy is necessary for treating vitamin D deficiency. Specifically, a light therapy must use ultraviolet B (UVB) light in order to stimulate vitamin D production in the body.

What is the most powerful UV light?

The ultra bright PowerMAX UV Blacklight Flashlight produces a powerful ultraviolet flood light effect beam that illuminates objects over 30 feet away. Powered by an industry leading 100 LED high intensity, long distance bulbs which produce 395nm wavelength UV light….