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Old 06-01-2012, 07:39 PM   #4
6charlong
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Posts: 865
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Join Date: Apr 2007
Location: US
Device: Kindle, nook, Apple and Kobo
Quote:
Originally Posted by Penforhire View Post
Technically there is a diffraction grating with the glass. Their teardown did not try to detect whether it is embedded, attached, or somehow etched onto the glass. They shined a laser through the combined layers.
Hum. Thanks for that although I have to admit I don't really understand the physics. Sounds like they might have etched the glass or attached something to it but we don't know how they do it.

I read somewhere that B&N patented their solution. It will be interesting to see what Amazon comes up with.
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