Patent ID: 7401958

Claim:
A vehicle headlamp comprising: a projection lens disposed on an optical axis extending in a longitudinal direction of a vehicle; a light source disposed on a rear side of a rear focal point of the projection lens; a reflector which forwardly reflects a light emitted from the light source toward the optical axis; a shade disposed such that an upper edge of the shade is positioned in the vicinity of the optical axis near the rear focal point, wherein the shade shields a part of the light reflected by the reflector, and forms a cutoff line of a low beam light distribution pattern; a first auxiliary reflector disposed below the reflector, wherein the first auxiliary reflector downwardly reflects the light emitted from the light source in a forward direction; and a second auxiliary reflector disposed on a front side of the first auxiliary reflector, wherein the second auxiliary reflector forwardly reflects the light reflected by the first auxiliary reflector, wherein the light source is a line light source extending in a width direction of the vehicle, a sectional shape of a reflecting surface of the first auxiliary reflector taken along a vertical plane that is parallel to the optical axis is a shape of a parabola, the parabola having a focal point in the vicinity of the light source and an axis line downwardly extending in the forward direction at a predetermined downward inclination angle with respect to the optical axis, a sectional shape of a reflecting surface of the second auxiliary reflector taken along the vertical plane is a shape of a substantially straight line downwardly extending in the forward direction at a downward inclination angle which is smaller than the predetermined downward inclination angle, and the light emitted from the light source and reflected by the first auxiliary reflector and the second auxiliary reflector is forwardly irradiated as a diffusion light which is diffused in a horizontal direction.