Patent ID: 6478460
Filing Date: 2002-11-12
Classification: B60Q,F21S

Abstract:
A headlamp of an automobile, comprising;a light source bulb; a movable reflector; and driving means rotating the movable reflector; wherein the movable reflector is rotated by the driving means so that the illumination direction and the illumination range of light from the light source bulb are changed and luminous intensity distribution pattern is changed; wherein the movable reflector is divided to two members of an upper reflector member positioned above an optical axis of the light source bulb and a lower reflector member including the optical axis; wherein the upper reflector member is rotatable and is provided with a reflection face for forming a diffusing luminous intensity distribution pattern; wherein the lower reflector member is provided with the light source bulb, is rotatable and is provided with a reflector face for forming a reference luminous intensity distribution pattern; wherein the lower reflector member and the upper reflector member are rotatable in synchronism with each other in a first speed running situation of the automobile; wherein the upper reflector member is rotatable at a rotation angle larger than that of the lower reflector member in a second speed running situation of the automobile wherein the automobile speed according to the first speed running situation is greater than the automobile speed according to the second speed running situation; wherein the upper reflector member is rotatable in a third speed running situation of the automobile wherein the automobile speed according to the third speed running situation is lower than the automobile speed according to the second speed running situation; and wherein the upper reflector member is rotatable when the automobile makes one of a left turn and a right turn at a crossing of a road.