| 摘要 |
PURPOSE: An LED lamp with improved light concentration and heat radiation efficiency is provided to improve light collection efficiency by including a front light guide unit which guides light and a case which reflects the light. CONSTITUTION: A case(110) comprises a taper groove. A light emitting structure(120) emits light by using power supplied from the outside. An incident surface is formed on the rear of a lens unit(130) to cover the light emitting structure. A front light guide unit(140) guides the emitted light. A heat radiation sheet(150) radiates heat to the rear. A reflection layer is formed on the inner side of a tapered groove. |
