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发明授权
CN105358903B 前照灯单元及前照灯 有权

前照灯单元及前照灯
摘要：
前照灯单元(100)具备光源(101)、导光部件(102)、投射透镜(103)以及驱动部(112)。光源(101)发出对行进方向的前方进行照射的光线。导光部件(102)供光线入射，并使具有发散角的面状的光射出。投射透镜(103)供面状的光入射并朝前方投射。驱动部(112)变更投射透镜(103)相对于导光部件(102)的位置关系。从导光部件(102)以与导光部件(102)的光轴垂直的方向从投射透镜(103)的光轴方向进行光学观察时，驱动部(112)配置在与投射透镜(103)重合的区域内。
摘要（英）：

A headlight unit (100) includes a light source (101), a light guide member (102), a projection lens (103), and a drive unit (112). The light source (101) emits a light beam for irradiating a forward area in a traveling direction. The light guide member (102) receives the light beam and emits planar light having a divergence angle. The projection lens (103) receives the planar light and projects it forward. The drive unit (112) changes a positional relationship between the light guide member (102) and the projection lens (103). The drive unit (112) is disposed in a region overlapping with the projection lens (103) in a direction perpendicular to an optical axis of the light guide member (102) from the light guide member (102), as optically viewed from an optical axis direction of the projection lens (103).

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