휴대폰용 소형 Flash에 적합한 LED 램프 설계 연구

LED is expected as an environmentally friendly light source with its good reliability and long lifetime. A few ten ㎽ white LED can substitute for the indicator light source, and it is required to study several watt multi-chip semiconductor light sources in order to replace the light sources for general illumination such as incandescent lights and fluorescent lamps. Since the optical technology used for several ㎽ white LED light source uses only 30% to 50% of the light, it is required to develop the design technology of optical system and lens to improve the efficiency more than 80% for insuring the high power of white LED. In this paper, we designed and fabricated new structure reflector to increase the efficiency.