| 摘要 |
PROBLEM TO BE SOLVED: To constitute a head light for forming a light distribution pattern of an auxiliary light so as to control the light emitted from a discharge bulb by using a plurality of reflection surface elements constituting a reflector surface, and to obtain a required light distribution pattern of an auxiliary light even in a state after aiming adjustment of a reflector. SOLUTION: A group of reflecting surface elements 22As constitutes a horizontal cut line formation region 22A of a reflector surface 22. A horizontal section of a reflecting surface elements 22As1 positioned in an outermost part of the group of the reflecting surface elements 22As is formed in a concave shape. A light distribution pattern PA1 is formed so that light beams reflected from the reflecting surface elements 22As1 cross each other. This performs the left- side aiming adjustment of a reflector 16. When a light beam reflected from a left edge of the reflecting surface element 22As1 is blocked with an extension 28, an original light distribution pattern is changed into a light distribution pattern on which a portion on an oblique cut line side remains, and thereby a hot zone of a light distribution pattern of an auxiliary light is partly constituted. |
