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

PMMA 기판에 CeO2와 SiO2를 코팅하여 제작한 적외선 차단필터

  • Yu, Yeon-Serk (Department of Laser and Optical Information Engineering, Cheongju University) ;
  • Choi, Sang-Serk (Department of Laser and Optical Information Engineering, Cheongju University)
  • 유연석 (청주대학교 레이저 광정보공학과) ;
  • 최상석 (청주대학교 레이저 광정보공학과)
  • Published : 2006.10.25


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.


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