1994/07/01 Elhuyar Zientzia Iturria: Elhuyar aldizkaria
In order to help the blind, a laboratory in the French city of Tours has designed glasses equipped with sonars for the blind. The device continuously emits ultrasound and when they find an obstacle in front it analyzes the waves reflected by the analyzer. The blind then hears the alarm signal, but the signal is not always the same. When the obstacle is very close and large the loudest alarm sounds.
They will still have to perform tests to improve the system, but in any case these glasses will help other systems (that is, cane, etc. ).