Amici prism
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An Amici prism, named for the astronomer Giovanni Battista Amici, is a type of compound dispersive prism used in spectrometers. The Amici prism consists of two triangular prisms in contact, with the f
An Amici prism
A compact fluorescent lamp seen through an Amici prism
Visible spectrum
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The visible spectrum is the band of the electromagnetic spectrum that is visible to the human eye. Electromagnetic radiation in this range of wavelengths is called visible light. The optical spectrum
White light is dispersed by a glass prism into the colors of the visible spectrum.
Newton's observation of prismatic colors (David Brewster 1855)