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Proceedings Paper

Sol-gel coating of transparent optically variable
Author(s): Xingyuan Ni; Zhihua Zhang; Fan Yang; Jiandong Wei; Jun Shen
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Paper Abstract

A sol-gel coating of transparent optically variable is introduced in this paper. The plastic films coated with titanium dioxide using sol-gel process were embossed to form special patterns in micrometer scales. AFM, SEM, ellipsometer and electrophotometer were used to characterize the TiO2 coating and the transparent optically variable. The results show that the titania coating has nano-porous structure and the refractive index is about 1.9. The diffraction efficiency of the transparent optically variable coating is about 2.0%.

Paper Details

Date Published: 1 February 2006
PDF: 5 pages
Proc. SPIE 6034, ICO20: Optical Design and Fabrication, 603414 (1 February 2006); doi: 10.1117/12.668133
Show Author Affiliations
Xingyuan Ni, Tongji Univ. (China)
Zhihua Zhang, Tongji Univ. (China)
Fan Yang, Tongji Univ. (China)
Jiandong Wei, Tongji Univ. (China)
Jun Shen, Tongji Univ. (China)

Published in SPIE Proceedings Vol. 6034:
ICO20: Optical Design and Fabrication
James Breckinridge; Yongtian Wang, Editor(s)

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