Automatisches blendungsfreies Rückblickspiegel-System

摘要

In an automatic anti-glare rearview mirror system, the reflectivity of the mirror 20 is controlled 15 in accordance with the detected ambient light level 10 and the level of illumination 11 from behind the vehicle. The system is forced to adopt a DAY characteristic 13, whereby a switch to the anti-glare mode is prevented, when the detected ambient light level exceeds a threshold level eg during daylight. The threshold is variable 16 in accordance with at least one of the time of day, operation of the vehicle lights and a driver operated switch. The aim is to prevent a switch to anti-glare mode when the vehicle is operated in a dull location but with a bright area behind the vehicle during daylight or to enable the anti-glare mode to be adopted in a bright location at night such as a shopping centre. <IMAGE>