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Refraction optics help

  1. Nov 9, 2009 #1
    I'm building a project that requires to look through a window and see a specific color, however there are different colors either side, and depending on what angle you look through the little window with depends on which color you see. I would like it so that looking from most angles would, in effect be the same as looking on axis to it. It only has to work in one plane not two so only has to be contoured in one direction.

    The optics dont have to be great as it's only viewing colors, but just wondering what types of lens/prisims I should look at to accomplish this. If anyone can shed some light I'd be really appreciative, I've been spending huge amounts of time shaping my own lenses out of acrylic and then finding they dont work. I dont have a good grasp on light and imaging so thought I'd put it out there to the experts.

    The design of it means that it has to be done with optics at the top and cant be done with lightguides from the bottom, mirrors etc.

    Many thanks
  2. jcsd
  3. Nov 10, 2009 #2
    Will a concave divergent lens work?
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