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Can dispersion of light take place through lens?

  1. Nov 24, 2014 #1
    Can dispersion of light take place through lens, i.e. can lens (incl. Convex and Concave) scatter white light into its constituents???
     
  2. jcsd
  3. Nov 24, 2014 #2

    Bystander

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    Do a little reading on "chromatic aberration."
     
  4. Nov 24, 2014 #3

    jtbell

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    I once had eyeglasses that used a then-new type of glass with a higher index of refraction which allowed the lenses to be thinner. (I'm very nearsighted and have to use a strong lens prescription.) That glass also had a rather high dispersion, so when I looked at a street-lamp through the outer part of the lens, near the edge, I saw a nice little spectrum. I could even make out spectrum lines in sodium and mercury vapor lamps!
     
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