In a conventional vehicle headlamp, when improvement in the visibility at the
time of turning the vehicle is attempted by turning the light distribution characteristic,
if a part of the light is turned, the quantity of light becomes insufficient as
a whole, and if the whole light distribution is turned, the visibility straight
ahead becomes insufficient.
According to the present invention, there is provided a vehicle headlamp
1 comprising: one light source 2; a first light distribution-forming
reflecting surface 3 forming a light distribution shape for a diagonally
rising portion, and consisting of double reflecting surfaces, that is, a primary
reflecting surface which is an elliptic type, and a secondary reflecting surface
which is a parabolic type; a second light distribution-forming reflecting surface
4 forming a light distribution shape in a wide range below the horizontal
line, and consisting of double reflecting surfaces, that is, a primary reflecting
surface which is an elliptic type, and a secondary reflecting surface which is
a parabolic type; and a third light distribution-forming reflecting surface 5
forming a light distribution shape in a narrow range below the horizontal line,
wherein at least one of the first light distribution-forming reflecting surface
to the third light distribution-forming reflecting surface is rotatable in the
horizontal direction. As a result, the turning direction and the direction straight
ahead can be illuminated with sufficient quantity of light, to thereby solve the problems.