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Homework Help: Wave Nature of Light

  1. Jul 11, 2005 #1
    HI; Could someone please help me with this question: Calculate the minimum thickness needed for an antireflective coating (n=1.35) applied to a glass lens in order to eliminate blue (458 nm) reflections for light at normal incidence? How would I go about this question? Thanks.
  2. jcsd
  3. Jul 12, 2005 #2
    Use destructive interference.
  4. Jul 12, 2005 #3


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    Gold Member

    You should have a very very simple formula to figure this out.
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