The visible spectrum is the band of the electromagnetic spectrum that is visible to the human eye. Electromagnetic radiation in this range of wavelengths...

such as visible light is nonionizing; the photons do not have sufficient energy to ionize atoms. Throughout most of the electromagnetic spectrum, spectroscopy...

in part of the ultraviolet and the full, adjacent visible regions of the electromagnetic spectrum. Being relatively inexpensive and easily implemented...

visible light, or visible radiation is electromagnetic radiation that can be perceived by the human eye. Visible light spans the visible spectrum and...

telescope gathers and focuses light mainly from the visible part of the electromagnetic spectrum, to create a magnified image for direct visual inspection...

occur in the vacuum ultraviolet regions. Its weak absorption in the visible spectrum results in the pale blue color of water. The water molecule, in the...

and interference. For most humans, colors are perceived in the visible light spectrum with three types of cone cells (trichromacy). Other animals may...

an electromagnetic spectrum are called spectrograph or spectrometer. The visible spectrum is the part of the electromagnetic spectrum that can be seen by...

formula, an empirical equation discovered by Johann Balmer in 1885. The visible spectrum of light from hydrogen displays four wavelengths, 410 nm, 434 nm, 486 nm...

majority of spectrophotometers are used in spectral regions near the visible spectrum. A spectrometer that is calibrated for measurement of the incident...

value of 1 (100%). If the reflectance spectrum of a color is 0 (0%) or 1 (100%) across the entire visible spectrum, and it has no more than two transitions...

coatings with total hemispherical reflectances (THR) below 1% in the visible spectrum. The name is a portmanteau of the acronym VANTA (vertically aligned...

electromagnetic spectrum at the same time. While traditional military camouflage attempts to hide an object in the visible spectrum, multi-spectral camouflage...

form a continuum. The word spectrum was first used scientifically in optics to describe the rainbow of colors in visible light after passing through...

'channels' of the electromagnetic spectrum, in particular, the visible and infrared portions. Some of these channels include: Visible and Near Infrared: 0.6–1...

sensory effect of arbitrarily chosen spectra of light within their visible spectrum requires mixtures of at least four primary colors. Tetrachromacy is...

or frequency of light in the visible spectrum, or a relatively narrow spectral band (e.g. lasers). Every wave of visible light is perceived as a spectral...

of English, purple, unlike violet, is not one of the colors of the visible spectrum. It was not one of the colors of the rainbow identified by Isaac Newton...

natural light. Products marketed as "full-spectrum" may produce light throughout the entire visible spectrum, but without producing an even spectral distribution...

models. Thermal imaging cameras are much more expensive than their visible-spectrum counterparts, and higher-end models are often export-restricted due...

encompasses a broad spectrum, classified by frequency or its inverse, wavelength, ranging from radio waves, microwaves, infrared, visible light, ultraviolet...

refractive index changes with wavelength by several percent across the visible spectrum. Consequently, refractive indices for materials reported using a single...

99138 nm (vac), and frequency 473.6122 THz, in the red part of the visible spectrum. Because of the mode structure of the laser cavity, the instantaneous...

radiation emitted by the Sun falls within the visible spectrum and 49% falls within the infrared spectrum). The Earth's atmosphere is not totally transparent...

noise is strong in longer wavelengths, similar to the red end of the visible spectrum. The graphic representation of the sound signal mimics a Brownian pattern...

electromagnetic spectrum is usually divided into three regions; the near-, mid- and far- infrared, named for their relation to the visible spectrum. The higher-energy...

They absorb certain portions of the visible spectrum while reflecting others. The frequencies of the spectrum which are not absorbed are either reflected...

sensor is an image sensor or array of sensors that combine the visible spectrum with non-visible wavelengths, such as ultraviolet or infrared. Images produced...

III in spectroscopic notation). Its emission forbidden lines in the visible spectrum fall primarily at the wavelength 500.7 nm, and secondarily at 495.9 nm...

detects light (photons) in the visible spectrum reflected by objects in the environment or emitted by light sources. The visible range of light is defined...