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Old 03-10-2013, 01:05 PM   #30
HarryT
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Quote:
Originally Posted by sparklemotion View Post
What I don't understand is if the color hues are inherent to the device because of the way it's made, which I absolutely do believe, why are some PW's so much worse than others? Shouldn't they all be fairly similar?
With the very greatest respect, I've answered this question at least half a dozen times already. It's because the colour fringing is due to very slight non-parallelism in the two faces of the light diffuser. These are difference of the order of the wavelength of light - ie way, way below what any reasonable manufacturing tolerance can achieve.
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