Thin Lippmann Holograms for High-quality Designs and Secure Printing

Abstract

Lippmann holograms are produced by recording interference fringes in photopolymers. Therefore, they are thicker than an embossed hologram, which can cause issues with transfer. In this report, we briefly study previous developments related to Lippmann holograms, particularly for recording materials, and discuss the recently developed spot transfer Lippmann Hologram that was reported earlier this year. The spot transfer foil is expected to find applications in high-security applications such as banknotes and government-issued identity documents.