Patent ID: 9593818
Date: 2017-03-14
CPC Classifications: B60Q,F21S,F21Y

Claim:
1. An automobile headlamp comprising: a plurality of projection light source units disposed on a single bracket in a lamp chamber, wherein the plurality of projection light source units comprises a first projection light source unit and a second projection light source unit, wherein each of the plurality of projection light source units comprises: wherein light distribution patterns formed by the plurality of projection light source units respectively are synthesized to form a light distribution pattern of the headlamp, wherein, in each of the projection light source units, the shade extends approximately horizontally and forward such that an extending tip section thereof is located in a vicinity of a rearward focal point of the projection lens, wherein a low-beam distribution pattern having a predetermined cut-off line is formed by a light source unit section on an upper side comprising the projection lens, the shade, the first light-emitting element, and the first reflector, wherein an additional high-beam distribution pattern having a lower end cut-off line which approximately coincides with the predetermined cut-off line is formed by a light source unit section on a lower side comprising the projection lens, the shade, the second light-emitting element, and the second reflector, wherein each of the first projection light source unit and the second projection light source unit forms a dark zone between the predetermined cut-off line and the lower end cut-off line, and wherein an optical axis of the first projection light source unit is set to be parallel to an optical axis of the headlamp, and an optical axis of the second projection light source unit is slightly tilted forward and downward with respect to the optical axis of the headlamp, such that the low-beam distribution pattern of the first projection light source unit illuminates the dark zone formed by the second projection light source unit, and the additional high-beam distribution pattern of the second projection light source unit illuminates the dark zone formed by the first projection light source unit.