| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vehicular reflection type headlamp unit using a semiconductor light source, capable of forming a light distribution pattern for a headlamp, even if the unit is single. <P>SOLUTION: This vehicular reflection type head lamp unit includes the semiconductor light source disposed with a light emitting surface turned upward and downward when a lighting fixture is viewed from the front, a first reflecting surface, a second reflecting surface, a third reflecting surface, and a fourth reflecting surface. The first reflecting surface is a reflecting surface to diffusively reflect light irradiated from the semiconductor light source toward the second reflecting surface in a horizontal direction, the second reflecting surface is a reflecting surface to form a first light distribution pattern including a spot part by reflecting reflected light from the first reflecting surface, the third reflecting surface is a reflecting surface to form a second light distribution pattern including an elbow part projecting upward beyond a horizontal line by reflecting light irradiated from the semiconductor light source, and the fourth reflecting surface is a light reflecting surface to form a third light distribution pattern by reflecting light irradiated from the semiconductor light source. <P>COPYRIGHT: (C)2010,JPO&INPIT |
