| 摘要 |
<p>A dipped beam headlamp for an automobile, of the type incorporating a reflector revolving around a central axis A-A, a dipped beam light filament (fc) arranged in front of the reflector and a diffuser G (not shown) forming the closure to the headlamp. The reflector has a principal peripheral parabolic surface (R) with a focus (F), and a central zone (Z) behind the dipped beam filament which consists of a parabolic surface whose focus (Fz) is closer to the filament than the focus of the principal parabolic surface. <IMAGE></p> |
