What is the range of the visual spectrum that the human eye can view?

The range of the visual spectrum that the human eye can detect is from approximately 380 to 700 nanometers (nm). This range encompasses the spectrum of light that is visible to humans, where different wavelengths correspond to different colors perceived by the eye. For instance, wavelengths around 380 nm correspond to violet light, while those around 700 nm correspond to red light.

The human visual system is highly attuned to this range, allowing individuals to perceive a variety of colors based on how different wavelengths stimulate the cone cells in the retina. Light outside this range, either in the ultraviolet (below 380 nm) or infrared (above 700 nm) spectrum, is not visible to the naked eye.

This understanding of the visual spectrum is significant in various fields, including medicine, photography, and optics, as it influences how we perceive our environment and how technologies are developed to interact with light.