Patent ID: 7597465
Filing Date: 2009-10-06
Classification: B60Q,F21S,F21Y,H01L

Abstract:
1. A projector-type lamp unit for a vehicle, comprising: a semiconductor light emitting element as a light source; a first reflecting surface, which reflects and condenses a light emitted from the light source toward a projection lens disposed in a forward direction from the light source; a second reflecting surface which reflects a part of the light reflected from the first reflecting surface toward the projection lens; and a design portion disposed between the second reflecting surface and the projection lens and connected to the second reflecting surface, wherein: a boundary portion between the second reflecting surface and the design portion is formed in a shape so as to have a predetermined cut-off line in a light distribution pattern of the vehicle lamp, the first reflecting surface, the second reflecting surface, the boundary portion, and the design portion together form a one-piece structure, the projection lens is fixed to the one-piece structure, the first reflecting surface is formed in an elliptic shape having a first focal point near the semiconductor light emitting element and a second focal point near the boundary portion, and the first reflecting surface reflects and converges the light emitted from the semiconductor light emitting element toward the second focal point, and the design portion is disposed along an inclined downward direction from the boundary portion.