11.08.2009 18:35 Uhr, Quelle: Engadget

TruFocals make steampunk glasses a functional, expensive reality

Glasses with an adjustable focal length -- sounds so simple, somebody must have already done it, right? Well, yes, but earlier efforts have looked more like diving goggles than something you could, you know, wear in public. The Harry Potter-esque TruFocals, on the other hand, are (only just) acceptable looking and operate via the golden slider you see above. By tweaking translucent fluids between a pair of lenses for each eye, it alters the distance at which the specs focus, sort of like having your very own

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