Exterior mirror for motor vehicle

摘要

An exterior rear view mirror for a vehicle has a housing pivotally mounted on a base for angular movement about a first pivot axis and an electric motor for causing such movement. A controller operates the motor at either of two different speeds. The controller includes a counter for counting the number of revolutions of the output shaft of the motor so as to determining the angle through which the housing has been moved, thus enabling the housing to be restored to its original position by causing the motor to perform the same number of revolutions in the opposite direction.