| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat sink for LED lighting capable of effectively performing heat dissipation by radiation.SOLUTION: One or more of platy heat-radiating faces 10, 11 having a substrate 2 with an LED element 9 installed as an apex part are formed integrally and continuously; projection areas P0, P1 of each two different directions of the platy heat dissipation faces 10, 11 of a heat sink composed of heat radiating faces directed in any direction three-dimensionally are made large enough against a cross-sectional area S of the substrate 2; and heat dissipation efficiency is enhanced mainly by radiation against a surrounding space made of a closed space. |
