Korean Journal of Optics and Photonics (한국광학회지)

Optical Society of Korea (한국광학회)
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Design and Fabrication of Light Guiding Plate for Photobioreactor

광생물 반응기를 위한 도광판 설계 및 제작

  • 박기찬 (조선대학교 광기술공학과) ;
  • 김훈 (조선대학교 광기술공학과) ;
  • 신성선 (조선대학교 광기술공학과) ;
  • 신현길 ((주) 티엔아이) ;
  • 김종태 (조선대학교 바이오리파이너리센터) ;
  • 정상화 (조선대학교 기계공학과) ;
  • 박종락 (조선대학교 광기술공학과)
  • Received : 2012.02.15
  • Accepted : 2012.03.12
  • Published : 2012.04.25
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Abstract

We present results of optical design and fabrication of a light guiding plate (LGP) to be used as an illumination system for photobioreactors. Modeling of a light-emitting diode (LED) light source, a reflection film, and LGP patterns was performed. Especially, the LGP patterns were modeled as Lambertian scatterers. The modeling parameters (reflectance, scatterer width) were determined through matching simulations with the experimentally measured illuminance distribution for a test LGP. An LGP for an LED light source was designed with the extracted model parameters, and fabricated using a computerized numerical control machine. Optical characteristics including average illuminance and uniformity of illuminance distribution were measured for the fabricated LGP.

본 논문에서는 광생물 반응기의 조명 시스템으로 활용될 LED(Light-Emitting Diode)용 도광판의 광학설계 및 제작 결과에 대해 보고한다. 도광판 설계를 위해 광원, 반사필름, 도광판 패턴에 대한 모델링을 수행하였다. 특히, 도광판 패턴의 경우 램버시안 산란체(Lambertian Scatterer)로 모델링을 수행하였는데, 테스트용으로 제작된 도광판의 조도분포와 부합하는 모델 파라미터(반사율, 산란체의 폭)를 매칭 시뮬레이션을 통하여 추출하였다. 추출된 모델 파라미터를 사용하여 광학설계를 수행하였으며, CNC(Computer Numerical Control) 가공을 통해 도광판을 제작하였고, 평균조도와 조도균일도 등의 광학 특성을 측정하였다.

Keywords

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