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What inventions (or other wise) use light refraction?

  1. May 25, 2009 #1
    We learning about light refraction in class the other day and I was just wondering what man made objects used it for and what man made light refraction is used for.
  2. jcsd
  3. May 25, 2009 #2


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    Spectacles, microscopes, telescopes
  4. May 25, 2009 #3
    All kind of optic devices. A simple lens, for example.

  5. May 26, 2009 #4
    A man on The Science Channel said something interesting. Noting that the ability of a lens to focus relies on the light changing speed when it crosses the boundary between two substances, and noting that the eye needs a lens, the man on TV pointed out -- and this is a close paraphrase: "If light traveled at the same speed in all materials, everyone would be blind."
  6. May 27, 2009 #5
    prism , binocluors , beam splitter , gravitational lensing ( bending light around the sun for example) , camera , magnyfing glass , x-ray prisms , cerenkov radiation in a nuclear reactor . x-ray rainbows
  7. May 27, 2009 #6
    Just wanted to thank everyone who's replied so far, I really didn't know it was used to do so much!
  8. May 27, 2009 #7
    I wonder if somewhere in evolutioniary history some organisms have had eyes which work on the same principle as the pinhole camera.There is no refraction needed with these.
    Last edited: May 27, 2009
  9. May 27, 2009 #8

    Andy Resnick

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