Patent ID: 7387416

Claim:
A vehicular illumination lamp, comprising: a projection lens disposed on an optical axis, the optical axis extends in a longitudinal direction of the lamp, a primary light source unit, and a secondary light source unit, said primary and secondary light source units disposed rearwards of the projection lens, wherein the primary light source unit comprises: a primary light emitting device disposed near the optical axis at a position situated further rearwards than a rear focal point of the projection lens, a primary reflector disposed in such a manner as to cover the primary light emitting device from above so as to reflect light from the primary light emitting device towards a front of the lamp and towards the optical axis, and a primary mirror member having an upwardly oriented reflecting surface, which extends rearwards from near the rear focal point of the projecting lens substantially along the optical axis so as to reflect part of reflected light from the primary reflector upwards, and wherein the secondary light source unit comprises: a secondary mirror member having a downwardly oriented reflecting surface, which extends obliquely downwardly from a front end edge of the upwardly oriented reflecting surface towards a rear of the lamp, a secondary light emitting device disposed below the optical axis, and a secondary reflector that reflects light from the secondary light emitting device upwards so that the light substantially converges on a location on the downwardly oriented reflecting surface, which lies slightly obliquely below and near the rear focal point of the projecting lens; wherein the primary reflector comprises a substantially ellipsoidal surface, and the primary reflector has, in its vertical section, an elliptic shape that includes a primary focal point provided at the vicinity of the primary light emitting device and a secondary focal point provided slightly further forward than the rear focal point of said projection lens.