Re: Self-Healing LCD Message #4 Posted by bill platt on 9 May 2004, 3:45 p.m., in response to message #3 by Larry Corrado
Hi Larry,
Nice theory.
However I do not think that theory will hold, for a very simple reason. If you had this gap, you would necessarily also have a vanishing edge of the gap where the void disappears. Therefore, you would see the fringing effect, including rainbow colors, as the constructve interference sets in going through each 1/2 wavelength portion narrowing down from say a 2 wavelengths thick (800 nm) void. At 1/4 wavelength and less, you get total transmission/ no reflection, and at half wavelength you get total reflection (I think this is reverse of what you said but it is only the priciple of the thing we care about here and it is easy enough to derive it).
So the point is, I did not see the fringing effect, threfore I don't think it was a void.
Actually maybe if the whole void were less than 1/4 wavelength for all visible light (even violet) then you would not see the fringing.
So maybe you are correct!
Fun thought experiment---thanks!
Regards,
Bill
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