Patent ID: 7824086

Claim:
A lamp unit for a vehicle headlamp, the lamp unit comprising: a projection lens disposed on an optical axis extending in a longitudinal direction of a vehicle; and a plurality of light source units disposed rearwards of a rear focal plane of the projection lens, wherein each of the light source units comprises: a light emitting device; and a light guiding member having a front end light output port and adapted to guide light from the light emitting device to the front end light output port so as to allow the light be emitted from the front end light output port, wherein the front end light output ports of the light guiding members of the respective light source units are arranged adjacent to each other in a horizontal direction in a vicinity of the rear focal plane, and wherein each of the light guiding members comprises: a tubular member expanding in a substantially conical shape from the front end light output port towards a rear side, wherein a mirror finish treatment is applied on an inner circumferential surface of the tubular member and; an optical member disposed in a vicinity of a rear end portion of the tubular member and adapted to converge the light from the light emitting device towards the front end light output port.