A vehicle headlamp device 10 can be equipped with a discharge lamp 11, a beam switch device 13 that is used to switch between the high beam and low beam, a light distribution switch device 14 which broadens the horizontal light distribution in the forward direction of the vehicle during cornering, and...http://www.google.fr/patents/US6443602?utm_source=gb-gplus-shareBrevet US6443602 - Vehicle headlamp device