Color Separation-Can Hole Diameter be used to Separate RGB?

Discussion in 'Pinhole Photography' started by wildbillbugman, Jun 13, 2013.

  1. wildbillbugman

    wildbillbugman Member

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    Thanks to everyone for your input.
    I wonder, could precise hole diameter be used to separate primery colors? The hole diameter would need to be very accurate. Is this even feasable?
    Bill
     
  2. Mustafa Umut Sarac

    Mustafa Umut Sarac Member

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    Bill,

    I read a research article from Philips Holland. It was about a tv screen which could Show all the color spectrum. There was millions of little slits and an electric activated muscle like polymer which could change the slit opening width with minute detail. It was working with 500 volt electricity. Every slit was adjusted to separate exact color.
    I posted your idea to the forums 5 or 6 years ago.

    Umut
     
  3. wildbillbugman

    wildbillbugman Member

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    Thanks Umut,
    This indicates that, with proper controle of the hole diameter, separations using nothing but hole size (no color filters) can be done. Here is another project I will probable spend the rest of my life on. I guess it beats watching other peoples accomplishements on TV.
    Bill
     
  4. AgX

    AgX Member

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    In a tv-set there are typically different beams for the three primaries, and sets of the three primaries as fluorescent patches. So even with one single beam and smaller patches and actuating slits the situation still would be different than with a pinhole camera.
     
  5. Jim Jones

    Jim Jones Subscriber

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    While pinholes do exhibit chromatic abberation, I see no practical way to apply this to tri-color photography, display, or printing.
     
  6. AgX

    AgX Member

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    One could expose consecutively through pinholes filtered for the three primaries and adjusted respectively in diameter to gain in image quality.
     
  7. wildbillbugman

    wildbillbugman Member

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    Yes AgX, That is a good point. That is kinda what I was thinking. True color seps using apeture only might be possible if one has the resources of NASA. But,alas, I am just not that wealthy, or smart.
    Bill
     
  8. AgX

    AgX Member

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    I'm not sure if NASA's resources could change physics.

    Maybe though I'm overlooking something.
     
  9. John Koehrer

    John Koehrer Subscriber

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    If man was meant to fly, he'd have wings.
    From before DaVinci it was known that man could never fly. Or have a computer on your desktop.
    Once upon a time it was commonly believed that traveling over 35mph would take your breath away and cause death.(1830's)
     
  10. Hexavalent

    Hexavalent Subscriber

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    Maybe not NASA, but CERN could give it a try :smile:
     
  11. wildbillbugman

    wildbillbugman Member

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    AgX,
    Which Physics? Newtonian; Relativistic; or Quantum? I love to read about the las:blink:t one, though I do not pretend to understand it.:blink:
     
  12. AgX

    AgX Member

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    Let us resort to Apugian Physics.