Seeing with Sound for blind and visually impaired persons

The innovative 'K' Sonar - is the new ultrasonic device designed to acquaint blind customers with its potential as an aid to perception. Just as naval sonar allows mariners to make perceptions about the underwater environment, so the 'K' Sonar allows those who use it to make perceptions about their surroundings that otherwise would not be possible.

This product enables the Blind to become more aware of their environment and be more mobile in their strong need to travel.

The 'K' Sonar clipped to a standard long cane radiates harmless ultrasonic waves in a narrow beam to isonify objects in the path of a blind traveler. The sonar beam of the receiver collects the reflections - or echoes - from the objects in the pathway. These ultrasonic echoes are converted electronically into unique sound signatures representing the Euclidean "shape and size" of the objects. The blind person can recognize these and their location, making travel on foot more safe and easy. (Via batforblind)