New invention to help blind people - an ultrasonic torch replaces white stick.
No title. Ultrasonic torch aids blind, London.
C/U pan blind man holding ultrasonic torch. C/U as hand switches torch on. C/U as the blind man walks away. Panning shot as he walks past camera, we hear high pitched signal coming from torch. M/S as the man walks towards a pillar box and the torch warns him of its presence by a lower pitch noise, the man is able to move around. The invention is hoped to replace the conventional white stick.