Optimization of heat sink structure of headlamp with LED

摘要

In recent years, LED has been focused on automotive lighting devices as new light sources which can provide lower power consumption, high photometric performance and long life span. LED circumferential temperature rises because of the high temperature of engine. Also LED is weak in high temperature condition. If LED exceeds a junction temperature, the problem of the decrease is revealed. To apply LED in head lamp, it is necessary to develop the heat sink system. In this study, it optimized heat sink structure to decrease heat occurring in LED position lamp.