3D LED printer makes a contact lens display possible

When researchers from the University of Washington began constructing prototypes for contact lens displays, their biggest impediment was the fabrication of parts. On a theoretical level it’s not hard to build a display in a contact lens, but actually building and placing all the tiny, interrelated parts on a tiny polymer disk is difficult even today. It’s annoying to have to come up with an all-new fabrication process for every single part in a display, just because the display happens...

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