Patent ID: 6953272
Filing Date: 2005-10-11
Classification: F21S

Abstract:
1. A vehicle headlamp which is configured to execute beam irradiation forward in a predetermined light distribution pattern by means of a projector-type lamp unit comprising: a light source provided on an optical axis extending in a longitudinal direction of a vehicle; a reflector which reflects light from the light source forward and toward the optical axis; a projection lens provided at the front of the reflector; a shade provided between the projection lens and the reflector and partly shields light reflected from the reflector; and a first additional reflector which reflects direct light from the light source obliquely downward along the optical axis, the first additional reflector provided between the reflector located obliquely upward of the optical axis and the projection lens; and a second additional reflector which reflects light reflected from the first additional reflector forward, the second additional reflector provided obliquely downward of the optical axis, which is diagonally opposite to the first additional reflector; wherein a reflective surface of the first additional reflector is formed as an ellipsoid spherical surface having a first focus in the vicinity of the light source and a second focus on the second additional reflector side with respect to a vertical plane including the optical axis.