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A Study on Image Distortion Correction for Gobo Lighting Optical System

고보 조명 광학계의 이미지 왜곡 보정에 관한 연구

  • Gyu-Ha Kim (Department of Nano-semiconductor Engineering, Tech University of Korea) ;
  • Ji-Hwan Lee (Department of Nano-semiconductor Engineering, Tech University of Korea) ;
  • Chang-Hun Lee (Department of Nano-semiconductor Engineering, Tech University of Korea) ;
  • Mee-Suk Jung (Department of Nano-semiconductor Engineering, Tech University of Korea)
  • 김규하 (한국공학대학교 나노반도체공학과) ;
  • 이지환 (한국공학대학교 나노반도체공학과) ;
  • 이창훈 (한국공학대학교 나노반도체공학과) ;
  • 정미숙 (한국공학대학교 나노반도체공학과)
  • Received : 2023.03.08
  • Accepted : 2023.03.19
  • Published : 2023.04.25

Abstract

This paper studies a method of applying pre-distortion to the image mask of the gobo illumination optical system to correct an irradiated image and irradiate a clear image. In the case of the gobo illumination optical system, since it is generally irradiated with a tilt, distortion in the upper and lower directions occurs severely in the image. To solve this problem, the correction coordinates of the image were derived using a proportional equation, and the distortion was corrected by applying them to the image mask. As a result, it was confirmed that the distortion was reduced by 64.5% compared to the case of using the existing image mask.

본 논문은 고보 조명 광학계의 image mask에 사전 왜곡을 적용하여, image를 선명하게 조사 및 보정하는 방법을 연구하였다. 고보 조명 광학계의 경우, 일반적으로 기울여 조사되는 경우가 많기 때문에 image에서 상·하 방향의 왜곡이 심하게 발생한다. 이러한 문제점을 해결하기 위해 비례식을 이용해 image의 보정 좌표를 도출하고, 이를 image mask에 적용하여 왜곡을 보정하였다. 그 결과, 기존 image mask를 사용하였을 경우에 비해 왜곡이 64.5% 감소되는 것을 확인하였다.

Keywords

References

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