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극저온에서 LED 응용에 관한 연구
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  • 극저온에서 LED 응용에 관한 연구
저자명
하희주,김진욱,김선재,길경석,Ha. Hee-Ju,Kim. Jin-Wook,Kim. Sun-Jae,Kil. Gyung-Suk
간행물명
전기전자재료학회논문지
권/호정보
2014년|27권 9호|pp.600-605 (6 pages)
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한국전기전자재료학회
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

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 $-60^{circ}C$.