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南京理工大学 机械工程学院,江苏 南京,中国,210094
收稿日期:2013-10-19,
纸质出版日期:2014-02-20
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朱晓阳,侯丽雅,郑悦等. 微流体数字化技术制备聚合物微透镜阵列[J]. 光学精密工程, 2014,22(2): 360-368
ZHU Xiao-yang, HOU Li-ya, ZHENG Yue etc. Fabrication of polymer micro-lens array by micro-fluid digitalization[J]. Editorial Office of Optics and Precision Engineering, 2014,22(2): 360-368
朱晓阳,侯丽雅,郑悦等. 微流体数字化技术制备聚合物微透镜阵列[J]. 光学精密工程, 2014,22(2): 360-368 DOI: 10.3788/OPE.20142202.0360.
ZHU Xiao-yang, HOU Li-ya, ZHENG Yue etc. Fabrication of polymer micro-lens array by micro-fluid digitalization[J]. Editorial Office of Optics and Precision Engineering, 2014,22(2): 360-368 DOI: 10.3788/OPE.20142202.0360.
基于微流体数字化技术搭建了聚合物微透镜阵列按需喷射制备实验系统。以UV固化胶为喷射材料
将其按需喷射到镀有疏水化薄膜的玻璃基片上
在界面张力和疏水化效应的作用下
形成平凸状的微液滴
再经紫外光固化后形成微透镜阵列。实验研究了系统参量对稳定微喷射与微透镜直径的影响
稳定微喷射出了黏度值为50×10
-3
Pa·s的UV胶
制得了最小直径达25 μm的微透镜
进而制备出了直径变异系数C·V达0.64%、焦距均匀性误差为1.7%的15×15微透镜阵列。微透镜在扫描电子显微镜下具有较好的表面形貌
采用白光干涉/轮廓仪(VSI模式)测得其轮廓算术平均偏差
R
a
为247.99 nm(扫描区域:29.4 μm×39.3 μm)
扫描区域轮廓曲线平滑。通过微透镜阵列的成像实验
得到了微透镜阵列所成的清晰实像。实验结果表明
采用微流体数字化技术进行聚合物微透镜阵列的按需喷射制备过程简单、成本低廉、工艺参数稳定;制备的微透镜阵列几何与光学性能优越。
On the basis of the digitalization of microfluids technology
an experimental system for the drop-on-demand (DOD) jetting fabrication of micro-lens array was constructed. The UV-curable adhesive was taken as the jetting material and it was jetted on the glass substrate coated with the hydrophobic film. Then
liquid plano convex micro-droplet could be formed on the glass substrate by surface tension and hydrophobic effect
and the micro-lens array was obtained after the UV light polymerization at a room temperature. The influences of the system parameters on the stable micro-jetting and the diameter of micro-lens were researched. Results show that the UV-curable adhesive with a viscosity of 50×10
-3
Pa·s can be obtained in stable micro-jetting and the micro-lens with a diameter of 25 μm is prepared. Furthermore
a 15 × 15 micro-lens array is obtained by experiments with the coefficient of variation diameter of 0.64% and non-uniformity of the focal length of 1.7%. The micro-lens shows a good surface morphology in a Scanning Electron Microscopy(SEM) and its surface roughness is 247.69 nm (scanning area: 29.4 μm×39.3 μm) by the white light interferometer (VSI mode) and the profile curves of the scanning area are smooth. Through the projection image experiment of the micro-lens
the clear real image of the micro-lens array is obtained. Experimental results indicate that the DOD jetting fabrication of the micro-lens array based on the digitalization of microfluids technology has advantages of simple process
low costs
stable process parameters and the micro-lens has good geometry and optical performance.
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YUAN X C, YU W, NGO N, et al..Cost-effective fabri- cation of microlenses on hybrid sol-gel glass with a high energy beam sensitive gray-scale mask[J]. Optics Express, 2002, 10(7): 303-308.
BARGHORN C, SOPPERA O, LOUGNOT D J. Fabric- ation of microlenses by direct photo-induced crosslinki-ng polymerization [J]. Applied Surface Science, 2000, 168(1-4):89-91.
HE M, YUAN X C, NGO N Q, et al..Single-step fabric- ation of microlens array in sol-gel material by direct wri- ting and its application in optical coupling [J]. Opt.A: Pure App., 2004,6:94-97.
MACFARLANE D L, NARAYAN V, TATUM J A, et al..Microjet fabrication of microlens arrays[C]. IEEE P- hoton. Technol. Lett.,1994, 6(9):1112-1114.
VOIGT A, OSTRZINSKI U, PFEIFFER K, et al.. New inks for the direct drop-on-demand fabrication of polym- er lenses [J]. Microelectronic Engineering, 2011, 88:2174-2179.
KIM J Y, PFEIFFER K, VOIGT A, et al..Directly fabricated multi-scale microlens arrays on a hydrophobic flat surface by a simple ink-jet printing technique [J]. Journal of Materials Chemistry, 2012,22:3053-3058.
KIM J Y, MARTIN-OLMOS C, BAEK N S, et al.. Sim- ple and easily controllable parabolic-shaped microlenses printed on polymeric mesas [J]. Journal of Materials C- hemistry C, 2013,1:2152-2157.
XIE D, ZHANG H H, SHU X Y, et al..Fabrication of po- lymer micro-lens array with pneumatically diaphragm- driven drop-on-demand inkjet technology [J]. Optics Express, 2012,20(14):15186-15195.
章维一,侯丽雅. 微流体数字化的可续与技术问题(I):概念、方法和效果[J].科技导报,2005,23(8):4-9.
ZHANG W Y, HOU L Y. Scientific and technological p- roblems of digitalization of microfluids (PartI): conce- pts, methods and results [J]. Science & Technology Review, 2005,23(8):4-9. (in Chinese)
章维一, 侯丽雅. 微流体数字化的科学与技术问题(II):物质数字化及物质能量信息统一数字化概念研究 [J].科技导报, 2006, 24(3):41-47.
ZHANG W Y, HOU L Y, Scientific and technological problems of digitalization of micofluids (Part II):Conceptual study of digitalization of matter-energy- inf- ormation [J]. Science & Technology Review, 2006,24(3): 41-47. (in Chinese).
耿鑫,侯丽雅,王洪成,等. 微流体数字化技术制备基因芯片微阵列[J]. 光学 精密工程,2011,19(6):1344-1351.
GENG X, HOU L Y, WANG H CH, et al..Preparation of genechip microarrays using microfluid digitalization [J]. Opt. Precision Eng., 2011,19(6):1344-1351. (in Chinese).
侯丽雅,王振琪,章维一,等. 金属微粉体脉冲输送的微特性实验[J]. 光学 精密工程,2011,19(5):1030-1038.
HOU L Y, WANG ZH Q, ZHANG W Y, et al.. Experiments of micro characteristics of pulse transfer for metallic powders [J]. Opt. Precision Eng.,2011,19(5):1030-1038. (in Chinese)
杨眉,朱丽,侯丽雅,等. 数字化微喷射用玻璃基组合微喷嘴设计及应用[J]. 光学 精密工程,2012,20(7):1580-1586.
YANG M, ZHU L, HOU L Y, et al..Design and experi- ment of vitreous combined micronozzles used in digital micro injection [J]. Opt. Precision Eng., 2012, 20(7):1580-1586. (in Chinese)
王洪成,侯丽雅,章维一,等. 驱动电压波形修圆对微流体脉冲惯性力和驱动效果的影响[J]. 光学 精密工程,2012,20(10):2251-2259.
WANG H CH, HOU L Y, ZHANG W Y, et al..Influence of rounded driving voltage waves on micro-fluidic pulse inertial force and driving effects [J]. Opt. Precision Eng., 2012, 20(10):2251-2259. (in Chinese).
WANG H C, HOU L Y, ZHANG W Y. A drop-on-demand droplet generator for coating catalytic materials on microhotplates of micropellistor [J]. Sensors and Actuators B: Chemical, 2013, 183: 342-349.
刘朝杨,程璇. 透明超疏水疏油涂层的制备及性能[J]. 功能材料,2013,6(44):870-873.
LIU CH Y, CHENG X, Synthesis and properties of trans- parent superhydrophobic and oleophobic coatings[J]. Journal of functional materials, 2013, 6(44): 870-873.(in Chinese)
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