Patent ID: 8506146
Filing Date: 2013-08-13
Classification: B60Q,F21S,F21W

Abstract:
1. A vehicle head lamp comprising: a light source; a reflector that reflects light emitted from the light source; a condenser lens that irradiates the light reflected by the reflector forward; and a shade that blocks part of the light reflected by the reflector to obtain a desired light distribution, wherein the shade includes a main shade that has an opening for passing overhead sign light irradiated forward and upward and a sub-shade that is provided so as to be inclined rearward and downward from an upper edge of the main shade in order to obtain a cut line of the light distribution, and the reflector has an OHS reflection area that is used to project part of the reflected light toward a lower surface of the sub-shade and that allows the light reflected on the lower surface to pass through the opening of the main shade as the OHS light; wherein an effective reflection surface of the reflector has a rotational ellipsoidal shape, the light source is arranged at one focal point of the rotational ellipsoidal shape, and the light reflected by the effective reflection surface is condensed to an other focal point of the rotational ellipsoidal shape; the OHS reflection area is formed so that light directly emitted from the one focal point and reflected by the OHS reflection area is reflected by the lower surface of the sub-shade.