THE LIGHT SPECTRUM

The Light Spectrum

The Light Spectrum

The Light spectrum is the portion of the electromagnetic spectrum that is visible (can be detected by) the human eye. Electromagnetic radiation in this range of wavelengths called visible light or simply light. A typical human eye will respond to wavelengths of about 390 to 750 nm. [1] In terms of frequency, this corresponds to a band in the vicinity of 400-790 THz. A light-adapted eye generally has its maximum sensitivity around 555 nm (540 THz) in the green region of the optical spectrum (see: luminosity function). The spectrum does not, however, contains all ...