An electrical circuit including an optic sensor generating an output sensing signal proportional to a value of a luminosity intercepted in the sensor's field of reception at a specific angle, a measuring/comparing circuit for comparing the output sensing signal with a preset threshold value so as to...http://www.google.fr/patents/US5258607?utm_source=gb-gplus-shareBrevet US5258607 - Active anti-dazzle device for the drivers of cars and other motor vehicles having an electro-sensitive screen
Active anti-dazzle device for the drivers of cars and other motor vehicles ...