Quote:
Originally Posted by NullNix
More specifically, it's how diffraction gratings work, and the Kindle's light guide is a diffraction grating. (As I understand it, the reason you don't see a rainbow effect with the Kindle's built-in light is that LED light is nearly monochromatic. The reason you don't see a *strong* LSD-trip rainbowing when the Kindle is exposed to any non-LED, non-laser external light source light is because very little of the light is diffracted when it enters from that direction. It's a clever piece of design!)
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I don't think this is accurate because the color problem remains in the same orientation when you're reading in landscape.