Korean Journal of Optics and Photonics (한국광학회지)

Optical Society of Korea (한국광학회)
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LGP Pattern Design by Using a Pattern Density Function with Simple Exponential Function

간단한 지수함수를 패턴 밀도 함수로 이용한 LGP 패턴 설계

  • Kim, Young-Chul (Department of Information Display, Sun Moon University) ;
  • Kim, Dae-Wook (Department of Information Display, Sun Moon University) ;
  • Oh, Tae-Sik (Department of Information Display, Sun Moon University) ;
  • Lee, Yong-Min (Department of Information Display, Sun Moon University) ;
  • Ahn, Seung-Joon (Department of Information Display, Sun Moon University) ;
  • Kim, Ho-Seob (Department of Information Display, Sun Moon University)
  • 김영철 (선문대학교 공과대학 정보디스플레이학과) ;
  • 김대욱 (선문대학교 공과대학 정보디스플레이학과) ;
  • 오태식 (선문대학교 공과대학 정보디스플레이학과) ;
  • 이용민 (선문대학교 공과대학 정보디스플레이학과) ;
  • 안승준 (선문대학교 공과대학 정보디스플레이학과) ;
  • 김호섭 (선문대학교 공과대학 정보디스플레이학과)
  • Received : 2010.03.03
  • Accepted : 2010.04.19
  • Published : 2010.06.25
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Abstract

A pattern density function using simulation analysis for controlling LGP output distribution was proposed. The pattern density function was found as [Pexp(-y/70)+Qexp(+y/25)]R. We analyzed the LGP output distribution of a hemi-sphere pattern using the function and then found that its output distribution was clearly improved as compared with that of the equi-distance pattern. We found that the density function works well for the pyramid pattern case as well as.

전산모사를 통하여 LGP 출력 분포를 조절할 수 있는 패턴 밀도 함수를 찾고 그 효과를 조사하였다. 패턴 밀도 함수, 즉 패턴 간격은 [Pexp(-y/70)+Qexp(+y/25)]R로 조사되었다. 이 함수를 이용하여 패턴의 간격을 조절하는 방식으로 반구형 패턴이 장착된 도광판을 설계하여 도광판 출력 분포를 분석한 결과 출력 분포가 등간격 패턴에 의한 출력 분포에 비하여 확연히 개선되는 것을 확인하였다. 또한 이 함수를 피라미드 패턴에 적용하여 도광판의 출력을 조사하였는데, 반구형 패턴의 경우와 마찬가지로 출력 분포가 개선되는 것을 확인하였다.

Keywords

References

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