Visible light
Visible light (Visible light) is the electromagnetic spectrum in the human eye can see (feel get) part. This range of electromagnetic radiation is called visible light, or simply called light. The human eye can feel the wavelength range is generally falling from 390 to 700nm. Corresponding to these wavelengths in the frequency range of 430-790 THz. But some people can sense the wavelength of about 380 to 780 nm between the electromagnetic waves. Normal vision of the human eye on the wavelength of about 555 nm electromagnetic wave is most sensitive, this electromagnetic wave in the optical spectrum of the green area. ...