Generally, what we call ultraviolet (UV) refers to the light whose wavelength is 200-400nm in the spectrum<br>-Wavelength below 280nm far ultraviolet, also known as germicidal or UV-C<br>-Wavelength 280-320nm ultraviolet, also known as erythema or UV-B<br>-Wavelength 320-400 nm near ultraviolet, also known as black light or UV-A<br>-The wavelength above 400nm is visible light, also known as uv-v<br>
正在翻译中..