Fluid lense from Philips

Unlike high-end digital cameras, this new lens does not require mechanical moving parts because it works by manipulating two fluids in a tiny transparent tube.

The shape of the lens is adjusted by applying an electric field, whereby one of the two fluids is drawn to the edges while the other fluid fills up the remaining space in the tube. By changing the current, this lens can be shaped hollow, curvex or anything in between, so that it can focus on objects far away or as close as five centimeters.


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