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A blind or deaf person walking alone in a dark alley can be life-threatening because he/she fails to hear or sense any car horns from behind, resulting in an accident to a severe extent. The glasses for the blind and deaf serve to solve the problem. Each side of the rear of the glasses is equipped with a high-frequency wave radar projector while each side of the front with an LED red light. When a car comes from behind, the projector which detects a car coming from behind on one side will transmit waves to the LED to flash on the same side. In the case of the blind, a horn at the side where a car is coming from behind will sound off an alarm.
Shih Chien University