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A Study of Reflector Design Method for Low Road Illumination

낮은 도로 조명을 위한 Reflector 설계 방법 연구

  • Lee, Jeong-Su (Department of Nano-optical Engineering, Korea Polytechnic University) ;
  • Park, Hye-Jin (Department of Nano-optical Engineering, Korea Polytechnic University) ;
  • Seo, Jin-Hee (Department of Nano-optical Engineering, Korea Polytechnic University) ;
  • Jeong, You-Jin (Department of Nano-optical Engineering, Korea Polytechnic University) ;
  • Kim, Seo-Young (Department of Nano-optical Engineering, Korea Polytechnic University) ;
  • Ra, Hyun-Woon (Department of Nano-optical Engineering, Korea Polytechnic University) ;
  • Jung, Mee-Suk (Department of Nano-optical Engineering, Korea Polytechnic University)
  • 이정수 (한국산업기술대학교 나노-광공학과) ;
  • 박혜진 (한국산업기술대학교 나노-광공학과) ;
  • 서진희 (한국산업기술대학교 나노-광공학과) ;
  • 정유진 (한국산업기술대학교 나노-광공학과) ;
  • 김서영 (한국산업기술대학교 나노-광공학과) ;
  • 라현운 (한국산업기술대학교 나노-광공학과) ;
  • 정미숙 (한국산업기술대학교 나노-광공학과)
  • Received : 2017.10.30
  • Accepted : 2017.11.13
  • Published : 2017.12.25

Abstract

In this paper, a freeform reflector is designed for low road lighting. In the case of low road lighting, which requires light distribution over a wide lane compared to the height, it is difficult to match uniformity, compared to existing road lighting. To satisfy road lighting grade M3, the reflector was divided into nine parts, and the inclination of the reflecting surface was changed to have the desired light distribution. The fitted curves were drawn based on each point, following the formula that was derived. Through the Street Light Simulation of LightTools, we confirmed that it meets the M3 road lighting standard; we then made it directly and satisfied the lighting grade on an actual road, proving the validity of the design result.

본 논문에서는 낮은 도로 조명을 위한 freeform reflector를 설계하였다. 높이에 비해 넓은 차선까지 배광을 보내야 하는 낮은 도로 조명의 경우, 기존의 등주식 도로 조명에 비해 균제도를 맞추기 힘들다는 단점이 있다. 조명 등급 M3를 만족시키기 위해 reflector를 part 9개로 나누어 part 별 반사면의 기울기를 변화시켜 원하는 배광을 갖도록 하였고, 각 점을 기준으로 fitted curve를 그려 이에 따른 수식을 도출하였다. LightTools의 street light simulation을 통해 M3 조명 등급에 만족하는 것을 확인하였고 직접 제작하여 실제 도로상에서 조명 등급을 만족시키며 설계 결과에 대한 타당성을 입증하였다.

Keywords

References

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