DOI QR코드

DOI QR Code

The Design of 6 inch Down-light by Optimization of the Optical and the Thermal Properties

광학적 열적 최적화를 통한 6인치 다운라이트 설계

  • 김성현 (원광대 공대 정보통신학과) ;
  • 정영기 (원광대 공대 정보통신학과) ;
  • 서범식 (원광대 공대 정보통신학과) ;
  • 양종경 (삼성 LED 연구 1팀) ;
  • 박대희 (원광대 전기전자 및 정보공학부)
  • Received : 2011.03.28
  • Accepted : 2011.05.09
  • Published : 2011.06.01

Abstract

The best methods for distribution controled of LED lighting fixtures is control to designed LED chip array, lens and reflector. However, lens design need distribution design to reflector for low-wattage LED lighting because of difficulty of production and reduction of light efficiency. In addition, it needs maximize of thermal performance to improve the efficiency and reliability of device. As a result, for the height of reflector 40[mm] and Inclination 25[$^{\circ}$], we can see the best distribution properties, and, in the thermal properties, junction temperature MCPCB 62.9 [$^{\circ}C$], FR4 PCB 89.6 [$^{\circ}C$], FR4 PCB from Via-hole is 63.1 [$^{\circ}C$]. it may improve for thermal properties for makes the Via-hole.

Acknowledgement

Grant : 실감형 조명 연출을 위한 옴니버스 LED 조명 장치 개발

References

  1. Seung-Gyun Jung, Dae-Il Seok, Hwa-Young Shin, Chang-Mo Lee, Hoon Kim "The Development of Secondary Optics Design Method for LED", Journal for the KIIEE, Vol. 21, No. 6, pp 26-32, 2007
  2. Jianzheng Hu, Lianqiao Yang and Moo-Whan Shin, "Electrical, optical and thermal degradation of high power GaN/InGaN light-emitting diodes", J. Phys. d:Appl. Phys. 41, 2008.
  3. 신무환, 김재필, "LED 패키징 기술 입문", 북스힐, p. 283, 2009.
  4. S. J. Lee and J. C. Lee, "Design and evaluation of LCD backlight unit by LED array modules", Trans. Electr. Electron. Mater., Vol. 9, No. 3, p. 110, 2008. https://doi.org/10.4313/TEEM.2008.9.3.110
  5. Seung-Min Lee, Se-Il Lee, Jong-Kyung Yang Jong-Chan Lee and Dae-Hee Park, "Optimization of Heatsink and Analysis of Thermal Property in 75W LED Module for Street Lighting", Trans. KIEE, Vol. 59, No. 3, pp. 609-613, 2010
  6. Jeong Park, Moow han Shin, chin C. Lee, "Measurement of temperature profiles on visible light-emitting diodes by use of a nematic liquid crystal and an infrared laser", OPTICS LETTERS, vol.29, No.22, pp. 2656-2658, Nov. 15, 2004. https://doi.org/10.1364/OL.29.002656
  7. S. L. Chuang, "Degradation of II-VI blue-green semiconductor lasers", IEEE J. Quant. Elec, Vol. 33, p. 970, 1997. https://doi.org/10.1109/3.585485
  8. 김경온, 김영채, 어익수, " 다운라이트 조명기구에서 LED개별 및 전체 반사판 설계", 대한전기학회 하계학술대회, pp. 1497-1498, 2008
  9. 김유신, 유민정, 최안섭, " LED 프리즘 조명기구의 광학설계를 위한 조명광학설계 소프트웨어 비교 연구", 조명전기설비학회지, pp.15-18, 2009
  10. 여인선, 박준석, 김완호, "LightTools을 사용한 LED의 조명광학설계", 조명전기설비학회지 Vol. 16, No.1, pp. 14-19, 2002