A transparent electrode 21 formed by the ITO film, an EC layer 22 of an optoelectronic comprising element, a reflecting film also serving an electrode thin film 23 and an insulating sealing film 24 are deposited on a rear surface of a transparent substrate 20 of a main member of a mirror 10....http://www.google.fr/patents/US5805367?utm_source=gb-gplus-shareBrevet US5805367 - Multifunctional rearview mirror system
