Korean Journal of Optics and Photonics (한국광학회지)

Optical Society of Korea (한국광학회)
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Study on the Design of Asymmetric Lighting with Uniform Illumination Over a Large Area at Short Distance

단거리 조사 시 넓은 면적에 균일한 조명도를 가지는 비대칭 조명 광학계 설계 연구

  • Kang, Dong-Hwa (Department of Nano-optical Engineering, Korea Polytechnic University) ;
  • Jung, Mee-Suk (Department of Nano-optical Engineering, Korea Polytechnic University)
  • 강동화 (한국산업기술대학교 나노광공학과) ;
  • 정미숙 (한국산업기술대학교 나노광공학과)
  • Received : 2020.04.20
  • Accepted : 2020.05.26
  • Published : 2020.08.25
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Abstract

In this paper, the illuminating optics of asymmetric light distribution was studied, which allowed the light distribution to be uniform even for short-range irradiation on a wide illumination area. In the case of a light installed at a short distance, the light is not diffused enough because of the short irradiation distance. For this reason, it is difficult to satisfy uniformity of illumination. In addition, lighting design for asymmetric distribution is required because the lighting device is installed tilted, for visibility. Therefore, the design of lighting systems with asymmetric light distribution could achieve uniform illumination of the target surface even under short-distance irradiation. This was then applied to the license lamp, a lighting system featuring short light irradiation distance, to confirm that it satisfies the legal standards.

본 논문에서는 넓은 조사 면적에 단거리 조사시에도 균일한 조명도 분포를 가지도록 하는 비대칭 배광의 조명 광학계에 대한 연구를 진행하였다. 단거리에 설치되는 조명의 경우 조사 거리가 짧기 때문에 충분한 배광 분포 형성이 되지 못해 조명의 균일도를 만족하기 어렵다. 또한 시인성을 위해 조명기기가 기울어져 설치되기 때문에 비대칭 배광의 조명 설계가 요구된다. 이러한 문제점을 해결하기 위해 비대칭 배광을 가지는 조명 광학계 설계를 통해 근거리 조사 시에도 대상 표면에 균일한 조명도를 얻을 수 있었으며, 이를 근거리 조명 중 하나인 라이선스 램프에 적용하여 법규 기준을 만족하는 것을 확인하였다.

Keywords

References

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