Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Fabrication of Elliptical Micro-lens Array with Large Surface Using ${\mu}SL$

마이크로광조형을 이용한 대면적의 타원형 마이크로 렌즈 어레이 제작

  • 박인백 (부산대학교 대학원 지능기계공학과) ;
  • 이수도 (부산대학교 대학원 지능기계공학과) ;
  • 권태완 (부산대학교 대학원 지능기계공학과) ;
  • 최재원 ;
  • 이석희 (부산대학교 기계공학과)
  • Published : 2008.02.01
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Abstract

A 3D structure production method for microstereolithography is a useful way that produces complex structures with flexible processes and low cost. Several UV curable resins were blended and the optimal resin for micro-lens fabricate was selected through viscosity, workability and transmission tests. It consists of 1, 6 - Hexanediol diacrylate with 15 Apha and Isobornyl acrylate for reducing some shrinkage. When fabricating a micro-lens array on large surface, some distortion of shape occurred because of the surface tension between cured part. To overcome this problem, the optimal processing conditions were derived from considering amount of the resin and surface tension. Large surface Micro-lens array, which are a type of elliptical convex and consist of 18,000 micro-lens in the range of 2cm*2cm were fabricated. The focal length to the X-axis and Y-axis were calculated. To verify the performance, measure an energy distribution of transmitted light from the Large surface Micro-lens array.

Keywords

References

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