A simple fabrication and integration technique of microlens for microfluidic lab-on-a-chip by overflow of UV resin through holes

Title
A simple fabrication and integration technique of microlens for microfluidic lab-on-a-chip by overflow of UV resin through holes
Author(s)
이봉기[이봉기]박장민김동성[김동성]권태헌[권태헌]
Keywords
ARRAYS
Issue Date
201105
Publisher
ELSEVIER SCIENCE BV
Citation
CURRENT APPLIED PHYSICS, v.11, no.3, pp.909 - 913
Abstract
In the present study, a simple fabrication technique for microlens or microlens array is proposed based on an overflow of a UV curable resin through micro-holes followed by photopolymerization of the resin. As a first step of the present technique, a micro-hole is precisely drilled on a flat plastic sheet. A UV curable resin is carefully spread over another plastic sheet, and then an overflow process is carried out by compressing the spread resin with the holed sheet. The overflowed resin through the hole is then cured by irradiation with UV light and consequently, the microlens is formed from the overflowed resin on the holed sheet. By utilizing the present fabrication technique, microlenses of 600 and 750 mu m in diameter were successfully manufactured. The fabricated microlens was also characterized by measuring its detailed dimensions and focal length. The microlens of 750 mu m in diameter showed a smooth convex surface and the focal length of 2.11 mm. (c) 2010 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/25252http://dx.doi.org/10.1016/j.cap.2010.12.021
ISSN
1567-1739
Appears in Collections:
공과대학 > 기계공학부 > Articles
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