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Visible Spectrum Measuring Instruments
Terms
  • visible (VIS) That term pertaining to the spectral region that can be perceived by the eye.
  • visible spectrum That region of the electromagnetic spectrum to which the retina is sensitive and by which the eye sees. It extends from about 400 to 750 nm in wavelength.
  • spectrum measuring instrument A traveling microscope or an automatic microdensitometer used to measure the spectrum plate obtained in a spectrograph.
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