PHOTOELECTRICALLY-CONTROLLED REAR-VIEW MIRROW

摘要

A photoelectrically controlled rear-view mirror employs a first photocell to switch the mirror between "normal" and "adjusted" positions in response to incident light on the mirror, and a second photocell to monitor ambient light and prevent switching of the mirror to the "adjusted" position during daylight hours and at night where high ambient light conditions exist. Mirror switching is effected by a single electromagnet having a winding which conducts current in one direction or the other in accordance with the resistive states of the photocells. The electromagnet displaces an actuating cam to either of two stable positions in which the mirror is positioned in an adjusted or a normal position, respectively.