Patent ID: 8235570

Claim:
A vehicle headlamp, comprising: (i) a main reflector having a convergent reflecting surface based upon an elliptical face; (ii) a semiconductor-type light source which is disposed so that a light emitting chip is positioned at a first focal point of the convergent reflecting surface; (iii) a projecting lens on which a lens focal point is positioned at a second focal point of the convergent reflecting, surface; (iv) an auxiliary reflector which is disposed between the main reflector and the projecting lens; (v) a parabolic reflecting surface based upon a parabolic face, which is disposed at the auxiliary reflector and on which a focal point is positioned at the first focal point of the convergent reflecting surface, for reflecting radiated light from the semiconductor-type light source, which is disallowed to be targeted for light distribution on the convergent reflecting surface, as a spot light distribution of the light distribution pattern for high beam, without passing through the projecting lens; (vi) a shade which is between the semiconductor-type light source and the projecting lens, and is disposed to be movable between a first location and a second location, for cutting off a part of reflection light radiated from the semiconductor-type light source and reflected on the convergent reflecting surface, to thereby form a light distribution pattern having one or more cutoff lines, when the shade is positioned in the first location, and for forming a basic light distribution of the light distribution pattern for high beam by means of the reflection light radiated from the semiconductor-type light source, and reflected on the convergent reflecting surface, when the shade is positioned in the second location; (vii) a light shading member which is between the semiconductor-type light source and the auxiliary reflector, and is disposed to be movable between a first location and a second location, for shading the radiated light from the semiconductor-type light source, which is to be incident to the parabolic reflecting surface, when the light shading member is positioned in the first location, and for allowing the radiated light from the semiconductor-type light source to be incident to the parabolic reflecting surface, when the light shading member is positioned in the second location; and (viii) a switching device for switching the shade and the light shading member to the first location and the second location respectively, thereby switching a current light distribution pattern to a respective one of a light distribution pattern, having one or more cutoff lines, and a light distribution pattern for high beam, having a spot light distribution.