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Light Dispersion through a Glass Slab

Rock the slab using your mouse.

This shows a glass slab with a beam of white light entering from the left.   Upon entering the glass the beam is dispersed into its component colors and each color is offest slightly from the color next to it.  Notice the colors exit the glass and are still traveling parallel to each other.  They are all bent equally so the exiting beam does not spread out like it does exiting a triangular prism..

� Copyright 1997, Sergey Kiselev and Tanya Yanovsky-Kiselev
Last modified: June 20, 1997