VEHICULAR HEADLAMP

摘要

A direct projection type vehicular headlamp includes a projection lens having an incident surface and a light emission surface, and a semiconductor light source. A reference surface and a light control surface positioned below the reference surface are provided on the incident surface, and the light control surface is inclined forward with respect to the reference surface in a direction form an upper side to a lower side. The reference surface has a shape to emit from the light emission surface direct light from the semiconductor light source, which has passed through the reference surface and the light emission surface, as substantially parallel light, and the light control surface has a shape to project the direct light from the semiconductor light source, which has passed through the light control surface and the light emission surface, on an upper portion of a predetermined distribution pattern formed by the substantially parallel light.

主权项

1. A direct projection type vehicular headlamp comprising:
a projection lens having an incident surface and a light emission surface as a convex curved surface; and a semiconductor light source provided near a rear focal point of the projection lens, wherein: the projection lens emits direct light from the semiconductor light source as substantially parallel light in front of the headlamp to form a predetermined distribution pattern; a reference surface and a light control surface positioned below the reference surface are provided on the incident surface of the projection lens, and the light control surface is inclined forward with respect to the reference surface in a direction form an upper side to a lower side; the reference surface has a shape to emit from the light emission surface the direct light from the semiconductor light source, which has passed through the reference surface and the light emission surface, as the substantially parallel light; and the light control surface has a shape to project the direct light from the semiconductor light source, which has passed through the light control surface and the light emission surface, on an upper portion of the predetermined distribution pattern.