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Proceedings Paper

Fabrication of low-cost polymer microlens array
Author(s): Tonghai Li; Baowen Hu; Guohua Jiao; Xiaoyi Guo; Lili Wang; Yulin Li
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Paper Abstract

The fabrication technology of refractive microlens array (MLA) with self-assembly of drops of various thermoplastic optical polymer solutions is reported. In order to develop a conventional drop-on-demand type ink-jet printing method for fabricating high quality microlens array, Firstly, we tried to prepare a series of optical polymer inks. These inks compose of high quality optical polymers, polymethylmethacrylate (PMMA), dopant, and functional organic molecules such as laser dye, nonlinear organic dye, and rare earth ion chelates with a suitable organic solvent. Effects of surface tension on the polymer solution drops induced the self-formation of microlenses. This process exhibited a completely self-assembly characteristic without any chemical and photochemical post-treatment. The resulting microlens array displayed diameters varying from 1mm to 5mm and focal lengths from less than one millimeter to a few millimeters. Observation with an atomic force microscope reveals that the surface roughness of the lens is 0.9 nm. The transmittance spectrum of the lens is also measured.

Paper Details

Date Published: 9 June 2006
PDF: 6 pages
Proc. SPIE 6149, 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 61491P (9 June 2006); doi: 10.1117/12.674251
Show Author Affiliations
Tonghai Li, Xi'an Institute of Optics and Precision Mechanics (China)
Baowen Hu, Xi'an Institute of Optics and Precision Mechanics (China)
Guohua Jiao, Xi'an Institute of Optics and Precision Mechanics (China)
Xiaoyi Guo, Xi'an Institute of Optics and Precision Mechanics (China)
Lili Wang, Xi'an Institute of Optics and Precision Mechanics (China)
Yulin Li, Xi'an Institute of Optics and Precision Mechanics (China)


Published in SPIE Proceedings Vol. 6149:
2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies
Li Yang; Shangming Wen; Yaolong Chen; Ernst-Bernhard Kley, Editor(s)

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