The fingertip laser project makes use of the sensor used in an Avago ADNS-9500 laser mouse, to improve the capabilities of robotic hands, giving them the capability to detect distance, surface type and slippage of grasped objects. Very elegant hack of a mouse sensor!

From: http://toychest.ai.uni-bremen.de/wiki/_media/projects:fingertip_on_hand.jpg?cache=&w=900&h=675&tok=207d12
From: http://toychest.ai.uni-bremen.de/wiki/_media/projects:fingertip_on_hand.jpg?cache=&w=900&h=675&tok=207d12

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