Patent ID: 7758218
Filing Date: 2010-07-20
Classification: B60Q

Abstract:
1. A vehicular headlamp comprising a plurality of light source units each having light-emitting elements as light sources thereof and synthesizes illumination light emitted from each of the light source units to create a predetermined light distribution pattern, wherein said plurality of light source units are provided with a common lamp body, the vehicular headlamp is further provided with a light amount control means for controlling an amount of light from at least two of the light source units of said plurality of light source units, and the light amount control means performs contrasting control to increase an amount of light from at least one of the light source units of said at least two of said light source units while decreasing an amount of light from at least another of the light source units of said at least two of said light source units, and the at least one of the light source units comprises a first light source unit that illuminates an area in a proximity of an optical axis of the lamp, and the at least another of said light source units comprises a second light source unit that illuminates an area that is greater than and includes the area where the first light source unit illuminates; an amount of light from the first light source unit and an amount of light from the second light source unit are controlled by said light amount control means so as to be opposite from each other; and said second light source unit illuminates an area directly in front of said vehicle and said first light source unit illuminates an area in front of said area illuminated by said second light source unit.