- an optical device for producing and observing a spectrum of light or radiation from any source, consisting essentially of a slit through which the radiation passes, a collimating lens, and an Amici prism.
Origin of spectroscope
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Examples from the Web for spectroscope
How well the spectroscope has confirmed this idea it is not necessary to say.Sir William Herschel: His Life and Works
Edward Singleton Holden
From the instrument case he had brought he took out a spectroscope.
It works on the principle of the spectroscope with modifications.
In Nature, 27-84, Capron says that because of the moonlight he had been able to do little with the spectroscope.The Book of the Damned
But this is not all; soon a new use was found for the spectroscope.The Outline of Science, Vol. 1 (of 4)
J. Arthur Thomson
- any of a number of instruments for dispersing electromagnetic radiation and thus forming or recording a spectrumSee also spectrometer
C19: from spectro- + -scope; from French, or on the model of German Spektroskop
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for spectroscope
Online Etymology Dictionary, © 2010 Douglas Harper
- An instrument for producing and observing spectra.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- Any of various instruments used to analyze the component parts of a sample by separating its parts into a spectrum.♦ In a light spectroscope, light is focused into a thin beam of parallel rays by a lens, and then passed through a prism or diffraction grating that separates the light into a frequency spectrum. The intensity of light at different frequencies in the spectrum can be analyzed to determine certain properties of the source of the light, such as its chemical composition or how quickly it is moving.♦ In a mass spectroscope, sample ions are beamed through an electric or magnetic field that deflects the ions; the amount of deflection depends on the ratio of their mass to their electric charge. The ion beam is thus split into separate bands; the collection of bands is called the mass spectrum of the sample, and can be analyzed to determine the distribution of ions in the sample. Spectroscopes are also called spectrographs.
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