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Show Electric Eye Aids Blind "Electric eyes now are being used to "see" for blind persons in guiding them about their homes by giving thera a sense of direction as they move about. The electric eye, or protoelectric cell, is made up like a flashlight with a small buzzer connected con-nected to its battery, according to Popular Mechanics Magazine. Convenient Con-venient electric lights are then placed about passages and hallways, particularly par-ticularly at turns. The blind person turns the electric elec-tric eye about much as a person having hav-ing his sight would direct a flashlight. flash-light. When the device points to a light source, contact is made and the buzzer sounds. As long as the buzzer is sounding the blind, user knows he is .on the right path. |