The company has filed a patent that shows a laser projector that will beam controls onto the body.

Google has filed a patent that hints at how users will control their Project Glass device. The patent for ‘Methods and Systems for a Virtual Input Device‘ features images and details about users inputting commands onto the palm of their hand or their arm from a laser projector that turns it into a virtual touchpad.

The small projector, mounted on the arm of the glasses, could beam out a laser pattern of objects like buttons onto any surface, based on where the user is looking. Engadget notes that a built-in camera and processor would then interpret finger movements to work out what was being selected.

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