| 摘要 |
<P>PROBLEM TO BE SOLVED: To change vertical spread of a light distribution pattern and condensing intensity. <P>SOLUTION: A lamp unit 100 is provided with a semiconductor light emitting element part 10, a reflector 40 radiating light from a light source to the front of a lamp, and a drive part 20 moving relative position of the semiconductor light emitting element part 10 and the reflector 40. The semiconductor light emitting element part 10 has a light emitting face with approximately rectangular outer periphery, and the reflector 40 has a parabolic face with a horizontal focal line FL. The drive part 20 is rotatable within the horizontal face of the light emitting face between a first position wherein short sides of the light emitting face become approximately parallel with the focal line FL and a second position wherein long sides of the light emitting face become approximately parallel with the focal line FL. <P>COPYRIGHT: (C)2008,JPO&INPIT |
