CONDENSING LENS AND LIGHTING DEVICE USING THE SAME

摘要

PURPOSE: A condensing lens and a lighting device including the same are provided to reduce manufacturing costs and processes by using a lens array to integrate the condensing lens to one component. CONSTITUTION: A plurality of refractive surfaces(122,124,126) are formed in a first incident unit(120). The refractive surface selectively inputs light from an optical source(10) according to an emission angle. A second incident unit(130) totally reflects light forward through a plurality of total reflection surfaces. A third incident unit(140) inputs light which is totally not reflected by the second incident unit through a plurality of refraction surfaces. The reflection surface of the third incident unit refracts incident light forward.