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Design and Fabrication of Microlens Array by Solvent-type Polymer of Inkjet Printing

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We present for the first time here that the micro-lens array is designed and fabricated with water-type polymer by inkjet printing technology. The micro-lens is, but not limited to be, simply designed with convex shape and small size less than 300 micrometers; the column and row of array cab be up to 100 × 100 and more. Meanwhile, by hydrophobic surface treatment of the substrate, micro-lens array is able be formed onto without coffeering. The specific fluid material of lens is formulated with low viscous solution of water-born Polyurethane (PU). Its optical refractive-index n is about 1.5. We also develop a new inkjet printing system that can generate droplets of such PU solution and deposit them onto the desired positions. Consequently, the dried solid micro-lens array is successfully fabricated after solvents completely drying. Many industrial applications for those microlens arrays can be found in LED package, LCD components, optical fiber component, and so on.
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Document Type: Research Article

Publication date: 2005-01-01

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  • For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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