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Optical System Design of Freeform Lens Lighting as a Replacement for Gobo Lighting

고보 조명을 대체할 수 있는 Freeform Lens 조명 광학계 설계

  • Byeong-Mun Yang (Department of Nano-semiconductor Engineering, Tech University of Korea) ;
  • Min-Gyu Kim (Department of Nano-semiconductor Engineering, Tech University of Korea) ;
  • Mee-Suk Jung (Department of Nano-semiconductor Engineering, Tech University of Korea)
  • 양병문 (한국공학대학교 나노반도체공학과) ;
  • 김민규 (한국공학대학교 나노반도체공학과) ;
  • 정미숙 (한국공학대학교 나노반도체공학과)
  • Received : 2023.10.30
  • Accepted : 2023.11.21
  • Published : 2023.12.25

Abstract

In this paper, we designed a lighting optical system using a freeform lens as a substitute for expensive gobo lighting. Unlike gobo lighting, freeform lens lighting does not use an image mask, and it can form and project an image directly on the lens surface using only a single lens, thus reducing the cost compared to gobo lighting. In order to verify the performance of freeform lens lighting with these advantages, we conducted an illuminance simulation. As a result, it was confirmed that it can replace gobo lighting because it has an illuminance distribution similar to the image we want to irradiate and a light efficiency of 47% similar to the performance of gobo lighting.

본 논문에서는 가격이 비싼 고보 조명을 대체하기 위해 freeform lens를 사용하여 조명 광학계를 설계하였다. Freeform lens 조명은 이미지 마스크를 사용하지 않으며, 렌즈 한 매만으로도 렌즈 면에서 직접 이미지를 형성하여 조사할 수 있어 고보 조명에 비해 단가를 절감할 수 있다. 또한 설계한 freeform lens 조명의 성능을 확인하기 위해서 조도 시뮬레이션을 진행하였다. 이를 통해 설계한 조명이 조사하고자 하는 이미지와 유사한 조도분포를 가지며, 고보 조명의 성능과 유사한 광효율 47%를 가지므로 고보 조명을 대체할 수 있음을 확인하였다.

Keywords

References

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