Proceedings of the Optical Society of Korea Conference (한국광학회:학술대회논문집)

Optical Society of Korea (한국광학회)
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Illuminance Uniformity of Beam Projector for Solar Cell Quantum Efficiency Distribution Measurement

태양전지 양자효율 분포측정을 위한 빔프로젝터의 광조도분포 균일화

  • 유재근 (한국표준과학연구원 기반표준본부 온도광도센터) ;
  • 김승관 (한국표준과학연구원 기반표준본부 온도광도센터) ;
  • 이동훈 (한국표준과학연구원 기반표준본부 온도광도센터) ;
  • 박철웅 (한국표준과학연구원 기반표준본부 온도광도센터) ;
  • 박승남 (한국표준과학연구원 기반표준본부 온도광도센터)
  • Published : 2009.10.20
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Abstract

Use of a DLP-beam projector is proposed to measure solar cell quantum efficiency distribution. The measurement requires a good spatial uniformity of the beam from the projector. We measured the spectral power distribution of the beam projector and the spatial uniformity of the white beam. By changing the gray level of the white beam at the measured spatial points, we improved the spatial illuminance uniformity to be about 2 % which was otherwise as much as 400 %.

Keywords