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    • 13. 发明授权
    • Vehicular lamp unit and vehicular lamp
    • 车灯单元和车灯
    • EP2182272B1
    • 2013-11-20
    • EP09013228.3
    • 2009-10-20
    • Koito Manufacturing Co., Ltd.
    • Nakada, Yusuke
    • F21V7/00F21V11/16F21S8/12
    • F21S41/43F21S41/147F21S41/255F21S41/321F21S41/333F21S41/338F21S41/36F21S41/365F21S45/47
    • A vehicular lamp unit includes a projection lens disposed on an optical axis extending in a vehicular longitudinal direction; a light source disposed rearward of a rear side focal point of the projection lens; a reflector reflecting direct light from the light source forward towards the optical axis; a shade disposed between the projection lens and the light source such that the shade blocks a part of reflected light from the reflector and a part of the direct light from the light source to form a cut-off line of a light distribution pattern; a first reflective surface formed on a tip portion of the reflector such that the first reflective surface reflects a part of the direct light from the light source downward to the front of the shade; and a second reflective surface formed on the front of the shade and below the rear side focal point of the projection lens such that the second reflective surface reflects reflected light from the first reflective surface towards the projection lens so that upward directed radiated light is emitted from the projection lens. The second reflective surface includes a vertically divided upper-side second reflective surface and lower-side second reflective surface. Radiated light provided by the lower-side second reflective surface radiates above radiated light provided by the upper-side second reflective surface.
    • 一种车辆用灯具单元包括:投影透镜,其配置在沿车辆前后方向延伸的光轴上; 配置在投影透镜的后侧焦点的后方的光源, 反射器,将来自所述光源的直射光朝向所述光轴向前反射; 设置在所述投影透镜和所述光源之间的阴影,使得所述阴影遮挡来自所述反射镜的部分反射光和来自所述光源的部分直射光以形成配光图案的切断线; 第一反射表面,所述第一反射表面形成在所述反射器的末端部分上,使得所述第一反射表面将来自所述光源的所述直射光的一部分向下反射到所述遮光罩的所述前面; 以及第二反射表面,其形成在投影透镜的后侧焦点的下方且位于投影透镜的后侧焦点的下方,使得第二反射表面将来自第一反射表面的反射光朝向投影透镜反射,使得向上的辐射光从 投影镜头。 第二反射表面包括垂直分开的上侧第二反射表面和下侧第二反射表面。 由下侧第二反射面提供的辐射光照射在由上侧第二反射面提供的辐射光以上。