In the ever-evolving landscape of ID document protection, optical security features and in particular, Diffractive Optically Variable Image Devices (DOVIDs) remain at the forefront of innovation. Indeed, the needs and challenges in this domain are rapidly changing and always call for the development of advanced and more resilient technologies. The race against counterfeiters has reached unprecedented levels. Today’s counterfeiters leverage increasingly sophisticated tools, including digital mastering equipment and advanced inks, making it easier to replicate and to imitate conventional optical features.

Zero-order features, with their unique optical properties, have proven resilient against these sophisticated counterfeiting methods. However, they are most of the time used in combination with other technologies. This approach is answering two main beliefs: first, that combining multiple technologies strengthens security, and second, that bright and animated complex patterns, such as rosettes or guilloches, add visual appeal and reinforce security.

Indeed, attractiveness is key – if a security feature is not visible enough, it will not be checked and therefore completely loses its value. However, combining zero-order features with other technologies can open a security breach. Diffractive optical effects, often used for their eye catchiness and their abilities to create vibrant animations, capture the controller’s attention but simultaneously create vulnerabilities. These structures can be susceptible to replication and counterfeiters will focus on mimicking the easiest and most visible effects.

In this presentation, Surys IN Groupe will showcase how its cutting-edge technologies and hybrid structures can transform the use of structural colours to meet stakeholders’ all needs. By integrating, multiscale mastering technologies, Surys IN Groupe has already elevated DIDTM from flat coloured protection to dynamic, animated security features. Now, is it feasible to develop a comprehensive optical security component fully protected by zero-order security key? Can we replace all the conventional security designs and optical features with sophisticated animations secured with structural colours, ensuring an unmatched level of defence against counterfeiting? Can this high security component ensure protection across all inspection movements and security levels and achieve the challenge of joining sophistication to simplicity of control.

Through case studies, implementation examples, and prospective concepts, we will illustrate how zero-order diffraction can redefine the robustness and effectiveness of ID document protection, providing unparalleled resilience against counterfeiting. These insights will illustrate how this innovative approach can redefine document security by creating optical features that are not only visually compelling but also harder to replicate.