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1. (WO1998014149) METHOD AND DEVICE FOR FACILITATING THE MOVEMENTS OF THE VISUALLY HANDICAPPED

Pub. No.:    WO/1998/014149    International Application No.:    PCT/FI1997/000491
Publication Date: Apr 9, 1998 International Filing Date: Aug 27, 1997
IPC: A61H 3/06
G01C 3/08
Applicants: HYTÖNEN, Onni, Ilmari
Inventors: HYTÖNEN, Onni, Ilmari
Title: METHOD AND DEVICE FOR FACILITATING THE MOVEMENTS OF THE VISUALLY HANDICAPPED
Abstract:
The object of the invention is a method and device for facilitating the movements of the visually handicapped. According to the invention, a laser is modulated to a certain frequency and the reflected light of the aforementioned frequency is received by a photosensitive element (5) and converted to audible or mechanical vibration signals in proportion to the amount of reflected light.