UV radiation comes primarily from the sun and is made up of UVA, UVB, and UVC rays. UVC rays do not reach Earth, but both UVA and UVB rays pose health risks. Learn more here.

Sunlight contains ultraviolet (UV) radiation, which consists of different types of rays. The types of UV radiation you’re probably most familiar with are UVA and UVB rays.

Short wavelengths move faster and are stronger, but not ALL the UV rays do reach the surface of the Earth. There are three types of UV rays that are considered based on range of wavelength: UVA ...

Calibration UV-LEDs of the Instrument Systems ACS series are extremely stable UV sources on LED basis that are traceable to radiant flux. They exhibit an extremely low measurement uncertainty (k=2) of ...

UVB refers to the wavelength range between 280 nm and 315 nm. Applications for these rays include horticulture and dermatology. “We are pleased that through collaboration with Photon Wave we are now ...

Polysense launches iEdge 4.0-enabled full covered UVA, UVB, UVC and UVABC sensors for health care, agriculture and environmental industries SANTA CLARA, CA, UNITED STATES, September 9, 2024 ...

‌UVA and UVB Rays are different types of a form of energy called ultraviolet (UV) radiation commonly seen as sunlight. Both UVA and UVB rays can cause harm to the skin. But there are some health ...

UV sanitizers use UVC rays to damage a germ's genetic material (i.e., DNA and RNA) so it cannot multiply. At shorter wavelengths than 254 nanometers, UVC rays may damage the proteins on germs, so ...

UVC rays are absorbed by the ozone in the Earth’s atmosphere ozone, but rays of UVA and UVB do reach the Earth’s surface and can cause sunburn and skin cancer if people get too much.

Inactivation efficacy of wavelengths was carried out at similar UVC doses. Inactivation of SARS-CoV-2 revealed wavelength sensitivity, with the 268 nm array obtaining comparable performance with ...