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Development of micro-stereolithography technology using a UV lamp and optical fiber

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Abstract

Micro-stereolithography technology makes it possible to fabricate free-form three-dimensional (3D) microstructures using a focused UV beam with a very small focal diameter to solidify a UV-curable liquid photopolymer. Generally, expensive UV lasers and complex optical systems are required. However, in this study, we developed a more economical and simpler micro-stereolithography technology using a UV lamp as a light source and optical fiber as the light delivery system. We conducted photopolymer solidification experiments to examine the characteristics of the developed micro-stereolithography apparatus. To achieve an adequate solidification width and depth, a photostabilizer was mixed with a conventional photopolymer and then tested. The developed apparatus could be used to fabricate 3D microstructures by modifying the fabrication conditions for a given photopolymer. Several 3D microstructures were fabricated.

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Authors and Affiliations

  1. KAFUS Co., 152, Bu-dong ri, Yunki gun, Chungnam, 339–813, South Korea

    Ji Soon Choi

  2. Department of Mechanical Engineering, POSTECH, San 31, Hyoja-dong, Nam-gu, Pohang, Gyungbuk, 790–784, South Korea

    Hyun-Wook Kang & Dong-Woo Cho

  3. School of Mechanical Engineering, Chungbuk National University, San 48, Gaesin-dong, Cheongju, Chungbuk, 361–763, South Korea

    In Hwan Lee

  4. School of Mechanical Engineering, Yeungnam University, Dae-dong 214–1, Gyeongsan, Gyungbuk, 712–749, South Korea

    Tae Jo Ko

Authors
  1. Ji Soon Choi
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  2. Hyun-Wook Kang
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  3. In Hwan Lee
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  4. Tae Jo Ko
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  5. Dong-Woo Cho
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Correspondence to In Hwan Lee.

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Choi, J.S., Kang, HW., Lee, I.H. et al. Development of micro-stereolithography technology using a UV lamp and optical fiber. Int J Adv Manuf Technol 41, 281–286 (2009). https://doi.org/10.1007/s00170-008-1461-1

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  • DOI: https://doi.org/10.1007/s00170-008-1461-1

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