Journal of Digital Convergence (디지털융복합연구)

The Society of Digital Policy and Management (한국디지털정책학회)
권호 표지
DOI QR코드

DOI QR Code

LED Source Optimization for the LED Chip Array of the LED Luminaires

LED 조명기구에서 LED 칩 배치에 따른 광원 최적화

  • Yoon, Seok-Beom (Kongju National University Dept. of Optical Engineering) ;
  • Chang, Eun-Young (Kongju National University Div. of Electrical, Eletronics&Control Engineering)
  • 윤석범 (공주대학교 광공학과) ;
  • 장은영 (공주대학교 전기전자제어공학부)
  • Received : 2016.03.03
  • Accepted : 2016.04.20
  • Published : 2016.04.28
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, we studied a light distribution for the LED chips arrangement using an optical design software. The structures of the edge type LED luminaires are reflector plane, LGP(lighting guide plane) and diffuse plane. The reflector plane is on the middle of the overall structure. We had simulation that placing LED chips on the reflector center of the reflector edge by changing the position of LED chips above the reflector center at 1mm, 2mm, and 3mm respectively. In the case, when LED chips are on the center of the reflector, it shows the light distribution of the general diffuse illumination, the semi-direct distribution with 0.56 efficiency and the direct distribution with 0.31 efficiency. And the wedge type LGP shows more efficiency than the flat type. Gradually increasing shape of semi-spherical type by 0.015mm has power of 1.02W, efficiency of 0.25, and maximum luminous intensity of 0.104W/sr, it also and shows the better optical characteristics than the reflector plane that have no patterns. This semi-spherical type shows the better optical characteristics than the reflector plane that have no patterns.

본 논문에서는 광학설계 프로그램을 이용하여 LED 광원의 위치 변화에 따른 배광분포에 대하여 연구하였다. 사용한 LED 조명기구는 엣지형의 LED 배열을 이용하였으며 반사판을 중심으로 도광판 및 확산판을 위와 아래에 배치한 구조이다. LED 칩을 반사판 에지 중심에서 위로 1mm, 2mm 및 3mm로 위치를 바꾸어 시뮬레이션 하였다. LED 칩이 중심에 위치한 경우는 전반확산 배광분포를 보였으며 2mm 이상에서는 효율 0.56의 반직접 배광 분포를 보였다. 3mm 위에 LED 칩을 위치시키면 0.31 효율을 갖는 직접 배광분포를 갖는 배광특성을 나타내었다. 도광판은 평면형 보다 칩 위치에서 밖으로 작아지는 쐐기형의 구조에서 더 좋은 효율을 나타내었다. 그리고 반사면에 반구형의 형상을 0.015mm 씩 증가시키며 방사 형태로 배치한 경우는 파워 1.02W, 효율 0.25, 최대광도 0.104W/sr로서 패턴을 형성하지 않은 경우보다 더 우수한 광 특성을 얻을 수 있었다.

Keywords

References

  1. Song Won Man, "The Usage Research of Lighting Equipment and The Study of Lighting Power Saving Method", Korea Association for Photoics Industry Development, pp. 1-5, 2014.
  2. An Sun Young, "LED Lighting Industrial Market Present Situation and Prospect", Journal of KIEEME, Vol. 7, No. 1, pp. 7-17, 2014
  3. Myung-Gun Hwang, "Chang-Su Hur, Efficiency Impro-vement Simulation for the LED Lighting According to the Lighting Equipment Shape", Journal of KIEEME, Vol. 18, No. 3, pp. 11-18, 2004
  4. Yu-Shin Kim, An-Seop Choi, "Analysis of the Change of Intensity Distribution and Luminous Environment by Reflector Shape in Indirect Reflected LED Luminaries", Journal of KIEEME, Vol. 29, No.1, pp. 9-17, 2011
  5. Lee, Jin-Sook Kim, Won-Do Kim, So-Yeon, "Sensibility Evaluation of LED Lighting and Fluorescent Lamp based on Color Temperature", Journal of AIKPD, Vol. 25, No. 4, pp. 263-270, 2009
  6. Yi, Yon-Soo, Ha, Mi-Kyoung, "A Study on the Psy-chological Responses by the change of Illuminance and Color temperature in LED", Korean Institute of Interior Design Journal, Vol. 21, No. 6, pp. 129-136, 2012
  7. Jeabum Park, Byungmok Kim, Jian Shen, Daeseok Rho, "Development of Remote Monitoring and Control Device of 50KW Photovoltaic System", Journal of the Korea Convergence Society, Vol. 2, No. 3, pp. 7-14, 2011.
  8. Jintaek Jeon, Daeseok Rho, Chanhyeok Kim, Yongpeel Wang, "The PV System Modeling Based on the PSCAD/EMTDC", Journal of the Korea Convergence Society, Vol. 2, No. 3, pp. 15-23, 2011
  9. Sung-Kwun Oh, Sung-Joon Lim, Chang-Min Ma, Jin-Yul Kim, "Development of RGBW Dimming Control Sensitivity Lighting System based on the Intelligence Algorithm", Journal of Korean Institute of Intelligent Systems, Vol. 21, No. 3, pp. 359-364, 2011 https://doi.org/10.5391/JKIIS.2011.21.3.359
  10. Song Sang Bin, "LED Lighting Component Technique Trend and prospect, Journal of KIIEE , Vol. 29, No. 2, pp. 23-34, 2015
  11. Sung-Gi Chae, Dong-Hwan Jung, Yoon-Chul Lee, "Re-flector Design for LED Pedestrian Lighting Using Indirect Reflectance Type", Journal of KIIEE, Vol. 26, No. 4, pp. 6-13, 2012
  12. Yoo, Sook-Chul, Yoo, Kyung-Sun, Hyeon, Dong-Hun, "A Study on Aspheric Optics Research for Improving the Luminous Efficiency of the LED MR16", Journal of KSMTE, Vol. 22, No. 3, pp. 480-487, 2013
  13. Nam-Don Hur, Uk-Pyo Han, Ja-Ham Koo, Hoon Kim, "The Development of software for analyzing Intensity Distribution of Luminaire", KIIEE, Vol. 17, No.5, pp. 1-7, 2003
  14. Hong, Sung-Dae, "Lighting Simulation using Relux", Journal of the KDAIA, Vol. 11, No. 1, pp.83-90, 2011
  15. Jang-Ryeol Ryu, Seok Beom Yoon, "The Performance Analysis According to Array Method of LED Equipping with Medical Instruments, Journal of AITC, Vol. 9, No. 4, pp. 51-56, 2011