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Old 02-23-2016, 01:47 PM   #949
xoxoxoBruce
The future is unwritten
 
Join Date: Oct 2002
Posts: 71,105
The lens in that abstract sounds like a miniature version those eyeglasses somebody invented a few years back, that had an adjustable liquid lens. they claimed they could be mass produced and distributed to third world countries as a one pair fixes all.

Ah, here it is.
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