| 摘要 |
PURPOSE: An LED lamp in which optical property and heat radiation property are excellent is provided to diversify the diffusion distribution of a light source by forming a glass bulb comprising an LED bulb into a concave lens part and a convex lens part. CONSTITUTION: A lens part(18) comprises a convex lens part(18a) and a concave lens part(18b). The lens part diffuses light to outside through the convex lens part and the concave lens part. A tap(11) is formed on the upper side of a mouthpiece(12). A wire attached to the mouthpiece is connected to an input part of a power supply part(13). A heat break board(14) is fixed to the lower surface of the power supply part fixed to the mouthpiece. A light-emitting diode module(19) is fixed to the surface of a laminate heat radiation board(17) by using a screw. The power supply part is electrically connected through an LED wiring passage(21) formed in the center of a heat radiation dust collecting plate(15). The laminate heat radiation board is fixed inside the lens part. |
