Patent ID: 8508133

Claim:
A headlamp assembly for a motor vehicle comprising: a housing case, and a front part of the housing case being open; a lens cover fitted to the front part of the housing case, and the lens cover and the housing case forming a light chamber; a light source for emitting light placed in the light chamber; a reflector, placed in the light chamber, for reflecting the light emitted from the light source toward a front direction of the headlamp assembly, the reflector being placed at a rear position of the light source and partially surrounding the light source; a shade, placed in the light chamber, for cutting off a part of the light reflected by the reflector; a projection lens, placed in the light chamber, for projecting the light reflected by the reflector toward the front direction of the headlamp assembly through the lens cover; a radiating member, comprised of a plurality of radiating fins placed in the light chamber at a right angle to a bottom wall side of the housing case, each of the radiating fins having a plate shape, an upper part and a bottom part of each of the radiating fins having a different heat capacity with which a different quantity of heat energy being conducted, and heat energy generated by the light source being radiated through the radiating fins; and the projection lens, the shade, and the light source being arranged in line from the front end of the headlamp assembly along an axial direction of the light source; wherein a slit is formed in the bottom part of each of the radiating fins in order for the upper part and the bottom part of each of the radiating fins to have a different heat conduction of heat energy.