“A GelSight sensor — both the original and the new, robot-mounted version — consists of a slab of transparent, synthetic rubber coated on one side with a metallic paint. The rubber conforms to any object it’s pressed against, and the metallic paint evens out the light-reflective properties of diverse materials, making it much easier to make precise optical measurements.”
Source: newsoffice.mit.edu
via Gizmag: http://www.gizmag.com/gelsight-robot-tactile-sensor/33946/
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