#2312: Doublenses

Today’s invention is a pair of glasses with an extra lens in each leg.

These could be folded over to provide the wearer with a pince-nez offering increased magnification, coloured lenses to help with dyslexia, sunglasses or a set of red and green ones to view 3D imagery.


The secondary lenses would be replaceable, so that many combinations could be used in different applications.

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