한국전기전자재료학회논문지 (Journal of the Korean Institute of Electrical and Electronic Material Engineers)

한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
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극저온에서 LED 응용에 관한 연구

A Study on the Application of LED at Ultra-low Temperature

  • 하희주 (한국해양대학교 전기전자공학부) ;
  • 김진욱 (한국해양대학교 전기전자공학부) ;
  • 김선재 (한국해양대학교 전기전자공학부) ;
  • 길경석 (한국해양대학교 전기전자공학부)
  • Ha, Hee-Ju (Division of Electrical and Electronics Engineering, Korea Maritime and Ocean University) ;
  • Kim, Jin-Wook (Division of Electrical and Electronics Engineering, Korea Maritime and Ocean University) ;
  • Kim, Sun-Jae (Division of Electrical and Electronics Engineering, Korea Maritime and Ocean University) ;
  • Kil, Gyung-Suk (Division of Electrical and Electronics Engineering, Korea Maritime and Ocean University)
  • 투고 : 2014.08.04
  • 심사 : 2014.08.13
  • 발행 : 2014.09.01

초록

The interest in development on luminaires which are available up to $-52^{\circ}C$ is surging as demands in vessels navigating a north pole route increase. A conventional incandescent lamp used in vessels is operated stably at $-52^{\circ}C$, but many countries including Korea have eliminated the use of incandescent lamps gradually because of its low luminous efficacy. In this paper, therefore, to develop the LED luminaires with high-efficiency, long lifetime that enables to substitute for incandescent lamp, it has studied about cryogenic characteristics of LED packages, bulbs, driving circuit and power supply. This experiments were carried out according to standards IEC 60945-8.4.1. Temperature range is from $-60^{\circ}C$ to $25^{\circ}C$, and the light output depending on ambient temperature. It showed that, based on $25^{\circ}C$, light output of a CFL decreased by 80% of CFL at $-20^{\circ}C$ while each increased 12% of LED bulbs and 16~19% of LED packages at $-60^{\circ}C$.

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과제정보

연구 과제 주관 기관 : 정보통신산업진흥원, 한국연구재단

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