Patent ID: 7347601

Claim:
A vehicle lamp unit comprising: a light emitting diode having a high directivity as a light source; and a reflective surface that reflects a light from the light emitting diode in a predetermined direction, having a configuration based on a paraboloid of revolution with a position of the light emitting diode as a focal point, and divided into a plurality of reflecting portions, the reflective surface including a plurality of first reflective surfaces that reflect first light beams within a half-value angle, from among the light from the light emitting diode, in a first predetermined direction, to satisfy light distribution specifications; and a plurality of second reflective surfaces that reflect second light beams out of the half-value angle, from among the light from the light emitting diode, in a second predetermined direction, and widen a light emission range to adjust a shape of the light emission range, wherein a focal length of the paraboloid of revolution for the first reflective surfaces is smaller than a focal length of the paraboloid of revolution for the second reflective surfaces, wherein a shape of a front view of the reflective surface is substantially equivalent to a shape of a front view shape of the light emission range, which is substantially rectangular, the reflective surface is divided into the first reflective surfaces and the second reflective surfaces radially from the light emitting diode as a center of the reflective surface, the first reflective surfaces and the second reflective surfaces are arranged alternately, with the first reflective surfaces corresponding to four sides of a rectangle and the second reflective surfaces corresponding to four corners of the rectangle.