Active anti-dazzle device for the drivers of cars and other motor vehicles.

摘要

The device has an electrical circuit (1) consisting of an optic sensor (2) which provides an output sensing signal (Ve) proportional to the value of the luminosity intercepted in the sensor's field of reception at a specific angle ( alpha ); the optic sensor is designed to transmit the said signal to a measuring/comparing circuit (4) where it is compared with a preset threshold value (Vc); when the value of the sensing signal (Ve) exceeds the threshold value (Vc), the circuit (4) transmits an actuating signal (S) to the power supply unit (4a) of an electro-sensitive screen (5) which is designed to pass from a state of total transparency, when there is no actuating signal (S), to a partially darkened or coloured state, when the actuating signal is transmitted (S), and back again to its transparent state when actuating signal transmission ceases.