Papers by Keyword: Glass Bead

Abstract: Application of anti-counterfeiting technology in the label has been widespread. This paper has studied the security label based on reflected light interference color, tells the story of its structure and preparation method, and application of glass beads in the label are detailed.

Abstract: this thesis discusses the main testing technologies at home and abroad relating to the glass bead refractive index, analyses the research emphases relating to the glass bead refractive index testing technology at present and point out the future research trend.

Abstract: This paper explains the theory of the secondary rainbow and provides a test method of refractive index of the high refractive index glass beads. We carry out the optical design relate to the method, and design a refractive index test equipment. Additionally, we analyze the calibration requirements of the equipment and discuss the cause of error and measurement accuracy. The designed equipment can achieve a continuous, accurate, statistical measurement.

Abstract: Glass decoration elements have been known for centuries. Many of them are preserved in a good shape. Actually the glass production development was started from tiny pieces called glass beads. Some of these products belong to very important historical objects which undergoing conservator activity to preserve our cultural heritage. To realize such enterprise very detailed research should be done. This paper is about testing of different glass decoration elements which belong to historical objects, in order to get information about their history and technology production. This research was carried out on small pieces of glass borrowed from historical objects in partnership between AGH - Technical University of Science and Technology and four different conservator groups. Testing made use of non-destructive techniques, like: EDS, FTIR, AFM.