electromagnetic spectrum

(redirected from Light spectrum)
Also found in: Dictionary, Thesaurus, Encyclopedia.
Related to Light spectrum: Visible light spectrum

electromagnetic spectrum

the range of frequencies and wavelengths associated with radiant energy.

e·lec·tro·mag·net·ic ra·di·a·tion

, electromagnetic spectrum (ĕ-lek'trō-mag-net'ik rā'dē-ā'shŭn, spek'trŭm)
Wavelike energy propagated through matter or space; varies widely in wavelength, frequency, photon energy, and properties; may be natural or artificial and includes radiowaves, microwaves, heat waves, visible light, ultraviolet light, x-rays, gamma rays, and cosmic radiation.

electromagnetic spectrum

The continuum of radiation, varying in frequency, and, correspondingly, wavelength, that includes, in order of decreasing frequency, cosmic ray photons, gamma rays, X rays, ultraviolet radiation, visible light, infrared radiation, microwaves, radio waves and heat.
Electromagnetic spectrumclick for a larger image
Fig. 142 Electromagnetic spectrum . The wavelength ranges of the electromagnetic spectrum.

electromagnetic spectrum

the entire range of wavelengths of electromagnetic radiation, most of which are not detectable by the human eye except in the visible spectrum from about 400–700 nm wavelength. Wavelengths shorter than the visible spectrum contain large quantities of energy which can be harmful to living material. See Fig. 141 . See X-RAY, GAMMA RADIATION, ULTRAVIOLET LIGHT.

electromagnetic spectrum (·lekˈ·trō·mag·neˑ·tik spekˑ·trm),

n the entire range of electromagnetic radiation that extends from the longest (radio waves) to the shortest (gamma radiation) wavelengths.

e·lec·tro·mag·net·ic ra·di·a·tion

, electromagnetic spectrum (ĕ-lek'trō-mag-net'ik rā'dē-ā'shŭn, spek'trŭm)
Wavelike energy propagated through matter or space; varies widely in wavelength, frequency, photon energy, and properties; may be natural or artificial and includes x-rays, gamma rays, and other forms.
References in periodicals archive ?
DWDM makes it possible for many data streams to travel over the same pair of fiber by utilizing different colors of the light spectrum.
By analyzing information from different parts of the light spectrum, scientists can learn much more than from a single wavelength alone, because different components of a galaxy are highlighted.
The Takeda Award 2002 Techno-Entrepreneurial Achievement for Social/Economic Well-Being is "the development of blue light emitting semiconductor devices--development of the blue light emitting diode and laser diode is the final link in completing the light spectrum for semiconductor devices.
ChroMATCH tracks conventional proofing colors across the entire light spectrum and provides the first stable spectral process for consistent digital proofing results.
Ultraviolet light lies in the portion of the invisible light spectrum beyond the violet or shorter wave length side of the visible spectrum.
According to a report in New Scientist, Boris Gaensicke of the University of Warwick in Coventry, UK, and colleagues noticed that dips in the object's light spectrum looked familiar.
Blue-light treatment, which has been used for years, is so called because the drug it uses is activated by wavelengths in the blue area of the light spectrum.
The newly identified galaxies are invisible in the visible part of the light spectrum, but stand out clearly in the infrared images.
Such glasses allow the visible part of the light spectrum to pass, but they prevent the passing of the thermal part, infrared waves, and harmful ultraviolet waves, and reflect them.
These lenses block out yellow light at 580 nanometers on the light spectrum, creating excellent clarity, efficient polarization and sharp color enhancement.