Korean Journal of Optics and Photonics (한국광학회지)

Optical Society of Korea (한국광학회)
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Study of the Optical System Design of a Reflective LED Stand to Reduce Glare

눈부심 감소를 위한 반사형 LED 스탠드 광학계 설계에 관한 연구

  • Kong, Mi-Seon (Department of Nano & Semiconductor Engineering, Korea Polytechnic University) ;
  • Jung, Mee-Suk (Department of Nano & Semiconductor Engineering, Korea Polytechnic University)
  • 공미선 (한국산업기술대학교 나노반도체공학과) ;
  • 정미숙 (한국산업기술대학교 나노반도체공학과)
  • Received : 2020.10.18
  • Accepted : 2020.11.02
  • Published : 2020.12.25
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Abstract

In this paper, a study of the design of a lighting optical system to form indirect light was conducted, to reduce the glare caused by the hot spot of the LED. In the case of using an LED for indoor lighting, glare is caused because of the high luminance and non-uniform luminance distribution. In particular, LED stands are located close to the user's eyes and are used for a long time, so research to reduce glare is essential. Therefore, in this paper an optical system structural study and the design of an LED stand for glare reduction were conducted. Afterward, the luminance analysis and comparison to an existing LED stand product confirmed that the reflective LED stand proposed in this paper had better performance in terms of glare.

본 논문에서는 LED의 hot spot으로 인해 발생하는 눈부심을 감소시키기 위하여 간접광을 형성하는 조명 광학계 설계에 관한 연구를 진행하였다. LED를 실내 조명의 광원으로 사용하는 경우, 높은 휘도와 hot spot으로 인한 불균일한 휘도 분포로 인해 사용자에게 눈부심을 발생시키는 문제점이 있다. 특히, LED 스탠드의 경우 사용자의 눈에 가깝게 위치되어 있으며, 장시간 사용되기 때문에 눈부심 감소를 위한 연구가 필수적이다. 따라서 본 논문에서는 눈부심을 감소시키기 위한 LED 스탠드 광학계 구조 연구 및 설계를 진행하였다. 이후, 기존 LED 스탠드 제품과의 휘도 비교 및 분석을 통해 본 논문에서 제안한 반사형 LED 스탠드가 눈부심 면에서 더 우수한 성능을 가지는 것을 확인하였다.

Keywords

References

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