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http://dx.doi.org/10.3807/KJOP.2006.17.5.480

IR Cut-off Filter Made of CeO2 and SiO2 Thin Films Coated on PMMA Substrate  

Yu, Yeon-Serk (Department of Laser and Optical Information Engineering, Cheongju University)
Choi, Sang-Serk (Department of Laser and Optical Information Engineering, Cheongju University)
Publication Information
Korean Journal of Optics and Photonics / v.17, no.5, 2006 , pp. 480-486 More about this Journal
Abstract
Generally, IR cut-off filters for mobile phone is coated on the glass substrate at high temperature(above $300^{\circ}C$). In this work, we prepared IR cut-off filters on the poly(methyl methacrylate)(PMMA) substrates at low temperature(about $70^{\circ}C$ ). using the $CeO_2\;and\;SiO_2$ coatings by physical vapor deposition. The surface energies of coated and uncoated PMMA, and adhesive properties of IR cut-off filters coatings were examined using contact angle measurements. We demonstrate the improve of mobile phone optical system using these results.
Keywords
IR Cut-off Filter; Surface Energy; PMMA;
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