Touchscreen devices may seem to make our lives easier, but they do tend to get smeared or dirty. Also, they're notorious for spreading germ. That's why researchers at the University of Tokyo have developed the HaptoMime. It's an ATM-like interface that makes the user feel like they're touching a glass screen, but they're really not touching anything at all. Basically, an LCD lies face-up on the bottom of the setup and displays the interface video. Sitting at a 45-degree angle above that screen is an aerial imaging plate (AIP), which is a sort of two-way mirror.
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