visible range
What eyes detect
Visible range refers to the distance at which something can be seen under given conditions.
Weather reports use it for atmospheric visibility: Fog reduced the visible range to fifty feet.
In optics and physics, the visible range (or visible spectrum) denotes the wavelengths of light detectable by the human eye—roughly 380 to 700 nanometers.
For weapons or equipment, visible range is how far the device can effectively see or be seen.
- light spectrumRange of electromagnetic wavelengths
- electromagnetic spectrumAll radiation frequencies ordered
- light wavesElectromagnetic radiation we perceive
- spectrumContinuous range of values
- lightVisible electromagnetic radiation
wavelength · rainbow · color · optics · optical illusion · electromagnetic · horizon · sight · line of sight · perception · eyesight · luminous · brightness · prism · retina · photons · clarity · naked eye
visible rangeradio waves
Low-frequency electromagnetic radiation
gamma rays · X-rays · ultraviolet · infrared · microwaves
visible, range, visibility, visibly, invisible, invisibility, vision, visual, visually