A projection-type headlamp producing a low-beam light distribution pattern having
a cut-off line and which provides improved visibility for the driver of the vehicle
with a reduced possibility of inflicting glare on drivers of oncoming vehicles.
A low-beam light distribution pattern is synthesized from a base light distribution
pattern, formed by a projection-type lamp unit, and a pair of additional light
distribution patterns, formed by light reflected from a pair of additional reflectors
provided on right and left sides of a lamp unit body. The additional light distribution
patterns are superimposed on a horizontal cut-off line having a level difference
within the base light distribution pattern. The contrast between the area above
the horizontal cut-off line and the area below the horizontal cut-off line is accordingly reduced.
