Portable dielectric tunable forensic lens design for jadeite analysis

This paper presents a dielectric tunable forensic lens design for jadeite analysis. The gemstone tunable forensic lens with three-step (5, 7 and 10 X) magnification is based on the research of dielectric liquid lens, which is able to capture internal and surface characteristics such as color distribution, bubble trapping and cracks by bright field and dark field illumination.