Light conductor for use in illumination device of motor vehicle, has deflection surface for deflecting light of light source to propagation direction, where angle formed by points on which beams of light fall is larger than another angle

摘要

The conductor (14) has a light inlet surface (12) aligned parallel to a main propagation direction, and a deflection surface (22) provided for deflecting light of a light source i.e. LED (2), to the propagation direction with which the light is propagated in the conductor after the deflection. An angle formed by points on which beams of the light fall is larger than another angle formed by normal of logarithmic spirals (19), where poles of the spirals lie in the propagation direction. Intersection angle of the spirals is larger than critical angle of internal total reflection of the conductor.