BAR TYPE LENS HAVING DISSYMMETRY SECTION AND LIGHTING MODULE FOR DEVICE OF LIGHTING STREET USING THE SAME

摘要

PURPOSE: A bar type lens having a dissymmetry section and a lighting module for a device of lighting a street using the same are provided to improve lifetime of a light and reduce operation costs by using an LED element as a light source. CONSTITUTION: In a device, an incidence surface(110) receives a light from a light source. A radiation surface(120) is installed at an opposite side so that the incident light is radiated to the road. The radiation surface is asymmetry so that the amount of light is more concentrated on the road as the distance between the radiation surface and the road is become larger. The radiation surface has a lower part of which a curvature radius is shorter than that of the lower part of the radiation surface. The radiation surface has the upper part of which the curvature center is under than that of the lower part. A planar section(130) is expanded to the upper part and has a plate reflecting the light.