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Light Distribution Pattern of Optical System in Street Lights with AC COB-Type LEDs

AC COB형 LED 가로등의 광학계 배광 패턴

  • Kim, Young-Gil (Course for Knowledge-based Technology(Opto-Nanotronics), Korea Polytechnic University) ;
  • Yoo, Kyung-Sun (Course for Knowledge-based Technology(Opto-Nanotronics), Korea Polytechnic University) ;
  • Lee, Chang-Soo (Course for Knowledge-based Technology(Opto-Nanotronics), Korea Polytechnic University) ;
  • Hyun, Dong-Hoon (Course for Knowledge-based Technology(Opto-Nanotronics), Korea Polytechnic University)
  • Received : 2016.12.16
  • Accepted : 2017.02.02
  • Published : 2017.02.15

Abstract

This study attempted to design lights with Type II distribution suitable for LED street lights based on the regulations of street light distribution developed by the Illuminating Engineering Society of North America (IESNA). The shape of an asymmetric lens, different from that of a rotationally symmetric lens, cannot be generated using a simple mathematical formula. In the first trial, the outline of the lens was fixed and simulated to confirm the distribution type. Following ISENA regulations, some problems that occurred during simulations and repeating was be modified that process is how we detected errors. Through optical research and simulations, a lens conforming to the regulations of Type II very short, Type II short, and Type II medium distributions was developed. A prototype was developed using simulation data and it was subjected to distribution tests. The results show that it can compare with property of Type II distribution.

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References

  1. Korea Energy Agency, 2016, 2016 Energy Statistics Handbook, Korea Energy Agency, p. 310.
  2. Lee, S. W., Lee, C. S., Hyun, D. H., 2013, A Study on Aspheric Optics European LED Streetlights Type for the Prevention of Light Pollution, Journal of the KSMTE 22:3 429-436.
  3. Han, J. M., Seo, I. J., Ahn, Y. M., Ko, Y. S., Kim, T. H., 2014, Thermo-ompression Process for High Power LEDs, Journal of the KSMTE 22:4 355-360.
  4. Hyun, D. H., Cha, I, H., 2015, LED Lighting Development and Design, Samchang Media, South Korea.
  5. Park, S. M., Park, S. J., Ko, J. H., 2013, AC LED driver IC research trends, The Proceedings of the KIEIE. 27:4 4-12.
  6. Kim Lighting., n.d., Optical Systems Design and Application Guide for Site and Roadways, Architectural Record. 12:5 263-273.
  7. Kim Lighting, 1999, SITE/ROADWAY Optical Systems Design and Application Guide, 2-3, 8-9.
  8. Noh, M. J., 2011, The Study of LED Indoor Light with ID-function, Master Thesis, Korea Polytechnic University, Republic of Korea.

Cited by

  1. Optical Lenses of Sports Lighting Systems based on NEMA Standards vol.28, pp.6, 2019, https://doi.org/10.7735/ksmte.2019.28.6.350