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    • 79. 发明授权
    • Vehicular illumination lamp
    • 车载照明灯
    • US09482401B2
    • 2016-11-01
    • US13428085
    • 2012-03-23
    • Takayuki Yagi
    • Takayuki Yagi
    • F21S8/10
    • F21S48/1154F21S41/143F21S41/147F21S41/255F21S41/26
    • A vehicular illumination lamp includes a projection lens configured to output forward, as light that is parallel with an axial line extending in a lamp front-rear direction, light emitted from a prescribed point on the axial line, and a light source disposed in the rear of the projection lens. A front surface of the projection lens is a convex free surface and a perimeter of the front surface extends approximately along a plane that is perpendicular to the axial line. A rear surface of the projection lens is a curved surface which is formed so that light emitted from the prescribed point and incident on the projection lens is output from the projection lens as light that is parallel with the axial line.
    • 车辆用照明灯具有:投射透镜,被配置为向前方输出与灯前后方向延伸的轴线平行的光,从轴线上的规定点射出的光,以及设置在后方的光源 的投影透镜。 投影透镜的前表面是凸自由表面,并且前表面的周边大致沿着垂直于轴线的平面延伸。 投影透镜的后表面是弯曲表面,其形成为使得从规定点发射并入射到投影透镜上的光从投影透镜输出为与轴线平行的光。