• 제목/요약/키워드: Microstereolithography(${\mu}SL$)

검색결과 6건 처리시간 0.024초

마이크로광조형을 이용한 대면적의 타원형 마이크로 렌즈 어레이 제작 (Fabrication of Elliptical Micro-lens Array with Large Surface Using ${\mu}SL$)

  • 박인백;이수도;권태완;최재원;이석희
    • 한국정밀공학회지
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    • 제25권2호
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    • pp.123-130
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    • 2008

  • 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.

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